A thread hook and a looper thread holder are arranged on a rear side of a needle drop position of a sewing machine. When usual sewing is completed, the thread hook and the looper thread holder swing and move close to a looper. A hook part provided at a tip end of the thread hook holds a needle thread loop caught by the looper and positions it on an advance end side of the looper away from the needle drop position, and a thread receiving part provided at a tip end of the looper thread holder holds a looper thread extending from the looper to cloths and positions it on the front side away from the needle drop position. The sewing machine performs sewing for at least one stitch while maintaining positions of the needle thread loop and the looper thread.

The invention comprises using a fabric cut into several pieces which are further assembled together by stitches, the stitches being made using a sewing machine comprising at least two needles (A', B') operating in-line one behind the other so that the sewing stitch of the second needle (B') is made on the threads of the sewing stitch made by the first needle (A') in order to cover the perforation made by the first needle and so that the perforation made by the second needle (B') is made through said thread (11), thereby filling said perforation with said thread (11).

A lower thread ending region detection apparatus prevents problems associated with false stitchings occurring from inability to detect lower thread's exhaustion during sewing operation. The lower thread ending region detection apparatus comprises: light control unit, which contacts a part of lower thread wound on a thread bobbin and activates or inactivates at least one of the functions of emitting light, reflecting light, passing light and blocking light, due to the effect of the physical movement force generated depending on whether the lower thread of the ending region is unwound; light receiving unit, which receives the light transferred out by the light control unit and outputs a detection signal; and control and notification unit, which analyzes the detection signal output from the light receiving unit to determine whether the lower thread has reached the ending region and outputs the result to the user.

Aspects and embodiments of the present invention are directed to systems and methods for embellishing fabric. In accordance with embodiments, a stitching system for a sewing machine is provided comprising a processor configured to control the sewing machine and a user interface configured to receive a stitch selection corresponding to a set of commands executable by the processor to instruct the sewing machine to sew the stitch selection. The set of commands may comprise a first command to sew a first portion of the stitch selection, a second command to stop sewing after completion of the first portion, and a third command to sew a second portion of the stitch selection after completion of the second command. The systems and methods of the present invention may advantageously allow an operator to create a running sequence of perfectly replicated embellishments.

An apparatus for thread-stitching a book block includes a thread tensioning device configured to store and tension a binding thread. A single actuator, including a servo drive, drives the thread tensioning device. The method includes storing a length of binding thread; in a separate step, tensioning the binding thread; and thread-stitching the book block.

Systems and methods for creating quilt blocks are provided. In one embodiment, a method for creating a quilt block with a computerized embroidery machine includes sewing placement stitching on a backing according to a placement stitching pattern provided by instructions for at least partially creating a quilt block comprised of one or more pieces, providing directions for placing one or more pieces of the quilt block on a corresponding portion of the placement stitching on the backing, and sewing the one or more pieces to the backing in accordance with the instructions.

The memory stores computer-readable instructions causing the sewing machine to perform operations including: extracting feature points of a design based on a captured image; extracting feature points of a unit design; generating feature points of a symmetrical design; cross-checking the extracted feature points of the design and the generated feature points of the symmetrical design; determining an arrangement of an embroidery pattern with respect to the symmetrical design; and causing a sewing portion to sew the embroidery pattern.

Disclosed is a two-needle sewing machine that improves strength in a convex curve part by bringing a pair of stitches close together when sewing an item. A two-needle sewing machine includes a bed part; a column part; an arm part; a needle shaft that is disposed on the leading part of the arm part; two sewing needles that are attached to the needle shaft; two horizontal hooks that catch the respective needle thread loops of the two sewing needles; and a conveyor member that conveys a material to be sewn in a direction approximately orthogonal to the bed part. On the two-needle sewing machine, the sewing needle, which is positioned in a location distant from the column part, is disposed closer to the conveyance side of the material to be sewn than the sewing needle that is positioned in a location closer to the column part.

A system for attaching handles to a workpiece, such as for attaching handles to a border material for a mattress. The system includes a pair of sewing heads movably mounted along a sewing area. The sewing heads can be moved from a first position for sewing the handles to the border in a first orientation, such as a horizontal orientation extending along the length of the border, to a second position for sewing the handles to the border in a different orientation, such as a vertical orientation extending across the width or height of the border.

A device includes a processor and a memory. The memory is configured to store a plurality of group information pieces, the number of thread colors to be used in embroidery sewing and computer-readable instructions. Each of the group information pieces is associated with one more thread colors among a plurality of thread colors. The computer-readable instructions cause the processor, when executed, to perform processes that includes acquiring image data including pixels, replacing a color of each of the pixels with a thread color from the thread colors, calculating a frequency of using each of the thread colors, selecting, until the number of thread colors selected from the thread colors is equal the number of thread colors to be used stored in the memory, one thread color from each of the group information pieces sequentially, based on the group information pieces stored in the memory and on the calculated frequency.

Method for creating a crystal/rhinestone template utilizing a sewing/embroidery machine to perforate a medium in a desired pattern. In the case of a multiple-needle sewing/embroidery machine, the machine's needle is replaced by a perforator blade and perforator blade holder which are attached to machine's needle bar. Machine's needle plate is replaced by perforator plate and waste holder. With a single-needle sewing/embroidery machine, machine's needle is replaced by a pressing tool attached to the machine's needle bar. A contact point, a spring, and an arm are attached to machine's presser foot. Machine's needle plate is replaced by perforator plate. A template medium is placed on a work surface of machine. Machine is operated by software that reads a user-specified pattern/motif outline for filling stones in vector form, using innate rules to move machine frame and control hole placement.

A carpet and method for producing same that comprises an enhanced seam suitable for separation of an installation portion of the carpet and sacrificial edge portions of the produced carpet.

An embroidery data processor includes a color information acquiring unit configured to acquire color information of a workpiece cloth on which an embroidery pattern composed of a plurality of color-based pattern portions is sewn, a color storage unit configured to store data of defined colors, an assignment unit configured to randomly extract colors from the colors stored by the color storage unit for every color-based pattern portion, the extracted colors being used as thread color data specifying colors of the color-based pattern portions respectively, the assignment unit assigning the extracted colors to the respective color-based pattern portions, and a setting unit configured to set a predetermined extraction range containing a similar color or a contrast color based on the color information acquired by the acquiring unit. The assignment unit is configured to extract the color stored by the color storage unit in the set extraction range.

A bus seat for use in a bus comprises a frame and a seat back secured to a portion of the frame. The bus seat further comprises a seat cushion secured to another portion of the frame. The bus seat also comprises a removable two piece cover arranged over the seat back, wherein the cover pieces are secured to one another with a zipper. The zippered two piece seat back cover allows for easy installation, removal or replacement of any damaged or worn portions of the seat back trim cover.

A punching device including a punching die (5a) that can be connected to the needle bar and a punching matrix (5b) that can be fastened to a needle plate (7) of a sewing machine. The punching matrix (5b) is embodied as a lid of a clippings container (9). The planar object (23) to be processed is displaced via the tambour frame in a punching plane L2, with this punching plane L2 being arranged parallel above the sewing plane L1.

A non-transitory computer-readable medium storing computer-readable instructions that, when executed by a processor of a device, cause the device to acquire pieces of thread color data, acquire image data representing an image, arrange line segments based on the image data, calculate a ratio of a first area occupied by a specific object with respect to the image, identify one or more pieces of first thread color data based on the ratio, identify one or more pieces of second thread color data based on the image data, allocate, to one or more of first line segments corresponding to the first area, first specific thread color data among the first thread color data, allocate, to one or more of second line segments corresponding to the second area, second specific thread color data among the first thread color data and the second thread color data, connect the line segments, and create embroidery data.

A method of manufacturing polyurethane (PU) foam toys with no restriction on playing environment comprises steps as follows: (1) Placing the prefabricated flexible cover into the foaming mold, and then vacuuming to firmly attach the cover to the inner wall of the mold; (2) Spraying adhesives at the periphery and the interior of the flexible cover while maintaining the continuous vacuum pressure; (3) Injecting the mixed polyurethane into the foaming mold; (4) Closing the mold and performing condensation reaction; (5) Opening the mold to get the product. The present invention is about the production of polyurethane form toys by formulating polyurethanes and binding the interior polyurethane body and flexible cover with adhesives. Because of its resilient and sturdy characteristics, the thermoplastic flexible cover provides protection to the interior polyurethane foam body, effectively eliminating problems like mildew growth, difficulties of cleaning and preventing damage.

Provided is a method of producing an artificial marble containing amethyst and vermiculite. The artificial marble includes amethyst representing superior performance in terms of a far-infrared emission effect and an antimicrobial property with a fine appearance, and vermiculite serving as an inorganic filler material and representing a superior adiabatic effect with a light weight. The artificial marble has a structure in which the first base layer including amethyst and the second base layer including vermiculite are laminated on each other.

A method for fabricating a repair laminate for a composite part having an exposed surface includes applying a bonding material to the exposed surface and forming an uncured ply stack assembly on the bonding material. The uncured ply stack assembly is formed by forming and compacting a series of uncured ply stacks. The ply stack assembly and bonding material are then cured.

A thin film forming apparatus and a thin film forming method using the same are disclosed. In one aspect, the thin film forming apparatus comprises a mask that includes a blocking portion and an opening. It also includes an etching source that jets an etching gas through the opening of the mask to etch a thin film according to a pattern. The mask includes a gas blower for blowing a gas around the opening so that the etching gas does not penetrate into a thin film area corresponding to the block portion. When the thin film forming apparatus is used, a normal residual area of a thin film may be safely preserved and patterning may be accurately performed. Thus, the quality of a product manufactured by using the thin film forming apparatus may be improved.

A plasma processing chamber having capacitive and inductive coupling of RF power. An RF power source is connected to an inductive coil and to a top electrode via a variable capacitor to control the ratio of power applied to the coil and electrode. The bottom electrode, which is part of the chuck holding the substrates, is floating, but has parasitive capacitance coupling to ground. No RF bias is applied to the chuck and/or the substrate, but the substrate is chucked using DC power. In a system utilizing the chamber, the chuck is movable and is loaded with substrates outside the chamber, enter the chamber from one side for processing, exit the chamber from an opposite side after the processing, and is unloaded in an unloading chamber. The chuck is then transported back to the loading chamber. Substrates are delivered to and removed from the system using conveyor belts.

A method of dispensing adhesive onto a stretched elastic strand includes applying a first volume of adhesive onto a first portion of the elastic strand, applying a second volume of adhesive onto a second portion of the elastic strand, and applying a third volume of adhesive onto a third portion of the elastic strand. The second volume is less than the first and third volumes. When the elastic strand is adhered to a substrate to form a personal disposable hygiene product, the first and third portions of the elastic strand define opposing ends of the elastic strand, which are adhered with a larger amount of adhesive to resist creep at the opposing ends. The reduction of adhesive in the second or central portion between the opposing ends significantly reduces the adhesive add on in the personal disposable hygiene product.

A fuselage panel made of composite material having a skin with an opening, at least part of the contour of which is reinforced by an integrated reinforcement made of composite material. The fuselage panel includes at least one liner made of composite material which is attached to and superposed on the reinforced skin portion and participates at least partially in defining the contour of the opening, the panel additionally including consolidating members, each passing at least partially through the liner and at least partially through the reinforced skin portion.

A method for making a water-degradable paper sheet involves the following: providing at least one strip of a water-soluble binding material in the form of a dry film; providing at least two strips each made of at least one ply of cellulose wadding; placing the strip of water-soluble binding material between the two strips of cellulose wadding; humidifying, assembling and pressing the three strips; and drying the complex strip thus obtained. The sheet thus obtained can be used for making a roll carrier mandrel by helically winding one or more strips from the sheet about a cylinder. Articles produced from the sheet can particularly be used in the field of products for sanitary or domestic use.

An active anvil assembly for use in forming a looped suture is provided. The active anvil assembly includes an anvil member, a first sensor operably connected to the anvil member, and a control assembly. The first sensor is configured for measuring at least one of force, torque, and distance feedback. Also provided are systems and methods for forming a looped suture including an active anvil assembly.

A system for fluid partitioning for chemical amplification or other chemical processing or separations of a sample, comprising a first dispenser of a first polymeric sheet, wherein the first polymeric sheet contains chambers; a second dispenser of a second polymeric sheet wherein the first dispenser and the second dispenser are positioned so that the first polymeric sheet and the second polymeric sheet become parallel; a dispenser of the fluid positioned to dispense the fluid between the first polymeric sheet and the second polymeric sheet; and a seal unit that seals the first polymeric sheet and the second polymeric sheet together thereby sealing the sample between the first polymeric sheet and the second polymeric sheet and partitioning the fluid for chemical amplification or other chemical processing or separations.

A plant for building tires for vehicle wheels, includes at least one forming drum having a supporting shaft axially projecting from opposite sides relative to a central body. A handling device is adapted to engage the forming drum and transfer it between at least one loading/unloading location and a work location provided for carrying out at least one process working on the forming drum. The handling device includes a grip assembly carrying at least two grip members each engaging the supporting shaft in the vicinity of each of the end portions thereof, and at least one motor associated with at least one of said grip members for driving the forming drum in rotation while the at least one process working is being carried out in the work location.

The present disclosure relates to methods and apparatuses for assembling diapers, each including a chassis connected with front and back elastic belts. As discussed in more detail below, opposing end regions of the chassis are connected with regions of the elastic belts where the elasticity of the elastic belts has been removed or deactivated. An elastic laminate may be formed by continuously bonding elastic strands between a first continuous substrate layer and a second continuous substrate layer such that the elastic strands are bonded to both the first substrate layer and the second substrate layer in heavy-bond regions. And the elastic strands are bonded to the first substrate layer and/or the second substrate layer with in light-bond regions. The elastic strands are then intermittently deactivated by cutting the strands into one or more discrete pieces in the light-bond regions. The discrete pieces retract and remain in the light-bond regions.

The invention relates to a method for gluing a friction lining to a support by means of adhesive that develops its full adhesive effect under the effect of pressure and/or temperature. The invention is characterized in that the friction lining and the support are pressed together along with the adhesive before the adhesive develops its full adhesive effect in order to glue the friction lining to the support.

An adherend surface of an adherend is stuck with a protection sheet being in substantially the same shape as the adherend surface and including base and adhesive layer by a method including: sticking the sheet on a first surface of a sticking tool foldable along a symmetry-axis position of the sheet; folding the tool with the sheet such that a second surface opposite to the first surface comes inside; peeling the sheet to a folded portion of the tool to expose a portion of the adhesive layer with the tool folded; pressing the exposed portion of the adhesive layer against the adherend surface to stick a portion of the sheet on the adherend; and moving the tool along the adherend surface to expose a remaining portion of the adhesive layer and pressing the remaining portion against the adherend surface to stick a remaining portion of the sheet on the adherend.

A pressure-sensitive adhesive optical film of the invention comprises an optical film and a pressure-sensitive adhesive layer provided on the optical film, wherein the pressure-sensitive adhesive layer has a thickness (μm) standard deviation of 0.12 μm or less. The pressure-sensitive adhesive optical film makes it possible to reduce the problem of visible unevenness caused by a pressure-sensitive adhesive layer.

Disclosed is a liquid processing apparatus capable of accurately determining a holding state of a substrate without being influenced by, for example, material or surface condition of a substrate. The liquid processing apparatus includes a substrate holding unit that holds a substrate, a camera that photographs a region where a peripheral edge portion of substrate is present when substrate is properly held by the substrate holding unit, and a control unit that determines a holding state of the substrate held by the substrate holding unit based on an image photographed by the camera.

A multi-layer bonding method of the present invention includes: forming a first bonded substrate by bonding a first substrate and an intermediate substrate in a bonding chamber; conveying a second substrate inside said bonding chamber when said first bonded substrate is arranged inside said bonding chamber; and forming a second bonded substrate by bonding said first bonded substrate and said second substrate in said bonding chamber. According to such a multi-layer bonding method, the upper-side substrate can be bonded with an intermediate substrate and then a first bonded substrate is bonded with a lower-side substrate without taking out the first bonded substrate from the bonding chamber. For this reason, a second bonded substrate can be produced at high speed and at a low cost.

To compete with the increasing global food demand, it is necessary to increase the food production. Fertilizers which are in practice now a days has major disadvantage that 50% of nutrient contents loss due to leaching and also leads to ground water contamination. Slow release nitrogenous fertilizers are good in this regard in that they have minimum nutrient loss due to leaching. Potassium aluminum silicate (Leucite) nanoparticles occluded by calcium ammonium nitrates are slow release fertilizers and are synthesized by hydrothermal method. Its application as slow released nitrates fertilizers was determined by observing nitrate release for 16 days.

Provided herein are systems and methods for biomass digestion and products formed thereof. The products include one or more biogases, U.S. Environmental Protection Agency classified Class A Biosolids, and pathogen reduced organic liquid fertilizer. Through the digestion of waste materials using sequential phases in an efficient digestion process, enhanced biomass conversion efficiency and improved output of products (in quantity and/or quality) are obtained with a significant reduction in dwell time in each phase.

An organic fertilizer and an organic feed are produced by removing cadmium from processing residues of scallop (Patinopecten yessoensis) without separating the midgut gland. That is, a small amount of an aqueous citric acid solution is added to the processing residues of scallop including the midgut gland in which cadmium has been accumulated at a high concentration and the mixture of them is heated to 55 to 65° C. Thus, the thin midgut gland membrane is broken and the internal solution of the midgut gland containing cadmium is eluted. Then, solid matters are separated from the mixture including the solid matters and the internal solution of the midgut gland eluted. As the aqueous citric acid solution, a solution prepared by mixing at least 9% by weight of water relative to the processing residues and 1.8 to 3.3% by weight of citric acid relative to the total weight of the processing residues and water is used. The content of cadmium in the solid matters can be further reduced by adding water to the solid matters having been separated and then heating the mixture of them to 55 to 65° C., thereby washing off cadmium remaining in the solid matters.

A ‘bioactive’ composition that has one or more oligogalacturonans ((1→4)-α-D-galacturonan) or any other oligosaccharides (oligoguluronans) that may present an ‘egg box’ conformation, this conformation being further stabilized by one or more polycationic saccharide(s), preferably either a chitosan oligosaccharide or a chitosan polysaccharide. A method prepares this composition and it is used, in medical, pharmaceutical, agricultural, nutraceutical, food, feed, textile, cosmetic, industrial and/or environmental applications.

A method and processes to solubilize and transform phosphorus contents of rock phosphate (RP) into bio-organo-phosphate (BOP) fertilizer have been developed and integrated. The methods include collecting and sorting of organic wastes; blending with RP; subjecting the blend to biocomposting; collection, isolation, selection and growth optimization of consortia of efficient phosphorus solubilizing microorganisms (PSM) and novel plant growth regulating microorganisms (PGRM); where in PSM produce organic acids and other organic compounds using compost substrate at mesophillic stage, whereas the organic acids released during composting also act in synergism of PSM, thus forming a carbon rich acidic culture resulting in the solubilization of rock phosphate.

A composition comprising at least one nutrient element, wherein the at least one nutrient element possesses a relative energy-state value greater than the relative energy-state value of the at least one nutrient element in a preexisting state, the composition being effective, perhaps because of the greater energy-state value, to improve the ability of a soil, when combined with the composition, to support plant growth better than the soil, when not combined with the composition. Also a composition comprising at least one nutrient element, wherein the composition possesses an energy spectrum more positive than the energy spectrum of the composition in a preexisting state, the composition being effective, perhaps because of the more positive energy spectrum, to improve the ability of a soil, when combined with the composition, to support plant growth better than the soil, when not combined with the composition. Methods of making and using the same for improving soil, plants, plant growth, seeds, and/or plant products, including quality of plant products, are also disclosed, as well as improved soil, seeds, including quality of seeds, plants, and/or plant products, including quality of plant product.

The present disclosure is directed toward a composition and method of treating and preventing infection of pathogenic microorganisms and endopyhtic microorganisms in a plant through the use of phosphite compositions.

A method for manufacturing pelletized fertilizer includes the following steps of: mixing a biodegradable material and a water-soluble polymer material to form a first mixture; mixing a polyol, water and a nutrient salt to form a second mixture; mixing the first mixture and the second mixture to form a conglomerating gathered third mixture, and stirring the conglomerating gathered third mixture to form small lumps of the third mixture; spraying probiotic endo spores on the small lumps of the third mixture to form a plurality of fertilizer blocks; heating the fertilizer blocks, and extruding the fertilizer blocks to form a fertilizer strip; and cutting the fertilizer strip to form a plurality of pelletized fertilizer.

The invention employs composites of zeolite and ferric oxide hydroxide for removal of inorganic nitrogen and phosphorus wastes from animal environments.

A system for the production of ammonium sulfate granules including a pipe cross reactor (PCR) configured to contact concentrated sulfuric acid with anhydrous ammonia to produce a PCR product comprising ammonium sulfate; and a granulator fluidly connected to the PCR, whereby PCR product extracted from the PCR can be introduced into the granulator, an inlet for ammonium sulfate seed material, an ammonia sparger configured to spray liquid anhydrous ammonia directly onto a bed of ammonium sulfate granules within the granulator, a granulator vent configured for extraction of a vapor comprising unreacted ammonia from the granulator, and a granulator product outlet configured for extraction of granulator product comprising ammonium sulfate granules from the granulator. A method of producing ammonium sulfate granules is also provided.

An agricultural fertigation method includes the continuous charging of crop-quality-enhancer-feedstock comprised of one or more crop-quality enhancers (fertilizers, soil amendments and the like) to an irrigation system upstream of the agricultural field being irrigated. The crop-quality-enhancer-feedstock is diluted upon so charging to a level within the system solubility limits and the stream of flowing irrigation water dampens the resultant dissolution exotherm. A system wherein crop-quality enhancers are efficiently continuously fed to the irrigation system main line or a side-arm mixing chamber efficiently implements the method.

An esteramide compound of the following formula (I): R1OOC-A-CONR2R3 (I) is described, wherein: A is a covalent bond or a methylene group —CH2—;R1 is an optionally substituted, saturated or unsaturated aliphatic or cycloaliphatic hydrocarbon group including from 5 to 36 carbon atoms,R2 and R3, either identical or different, are groups selected from a hydrogen atom, and optionally substituted hydrocarbon groups, preferably including from 1 to 36 carbon atoms, andR2 and R3 not being simultaneously hydrogen atoms. Also described, are applications for using the esteramide compound, notably as a solvent.

The present media is to be used with a particulate base having particles of a first maximum diameter for growing plants. The media includes granules which are of biodegradable recycled material and have a diameter relative to the first maximum diameter to penetrate further into the particulate base with each watering. The granules include plant nutrients and are of a material which coagulates after watering and adheres to the particulates of the base. The diameter of the granules may be in the range of 1/16 to ⅛ of an inch.

The invention relates to a fertilizing compound for application to plants and crops, especially fruits, intended for increasing the amount of calcium and subsequently improving the state of health of the plants and the preservation thereof after harvesting. The compound consists of a combination of components such as calcium nitrate, calcium lignosulfonate, organic acids, menadione sodium bisulphite, amino acids and water. The compound is in the form of a liquid preparation, packed in containers of between 20 and 1000 liters, is water-soluble and is applied by fertigation, spraying or in a localized form by border irrigation.

An agricultural fertigation method includes the continuous charging of crop-quality-enhancer-feedstock comprised of one or more crop-quality enhancers (fertilizers, soil amendments and the like) to an irrigation system upstream of the agricultural field being irrigated. The crop-quality-enhancer-feedstock is diluted upon so charging to a level within the system solubility limits and the stream of flowing irrigation water dampens the resultant dissolution exotherm. A system wherein crop-quality enhancers are efficiently continuously fed to the irrigation system main line or a side-arm mixing chamber efficiently implements the method.

An agricultural fertigation method includes the continuous charging of crop-quality-enhancer-feedstock comprised of one or more crop-quality enhancers (fertilizers, soil amendments and the like) to an irrigation system upstream of the agricultural field being irrigated. The crop-quality-enhancer-feedstock is diluted upon so charging to a level within the system solubility limits and the stream of flowing irrigation water dampens the resultant dissolution exotherm. A system wherein crop-quality enhancers are efficiently continuously fed to the irrigation system main line or a side-arm mixing chamber efficiently implements the method.

A method for producing biochar particles or pellets which use sulphur and other additives. The method includes producing a mixture with biochar and additives selected from sulphur, lignin, and gluten. The mixture is mixed with water and passed through an extruder to produce an extrudate. The extrudate is then cut into pellets. The pellets are then tumbled/spun with each other and heated to result in mostly spheroidal pellets whose mechanical characteristics allow them to be used with well-known agricultural equipment. The biochar can be produced with sulphur incorporated as an outer coating. To produce this sulphur coated biochar, the method includes feeding a biomass feedstock to a pyrolysis reactor, pyrolyzing the feedstock into biochar particles, size-sorting the biochar particles, and coating the biochar particles with the sulphur coating material.