32results about "Special leathers manufacture" patented technology

Engineered animal skin, hide, and leather comprising a plurality of layers of collagen formed by cultured animal collagen-producing (e.g., skin) cells. Layers may be formed by elongate multicellular bodies comprising a plurality of cultured animal cells that are adhered and/or cohered to one another; wherein the elongate multicellular bodies are arranged to form a substantially planar layer for use in formation of engineered animal skin, hide, and leather. Further described herein are methods of forming engineered animal skin, hide, and leather utilizing said layers of animal collagen-producing cells.

Disclosed herein are split leather for car seats and a manufacturing method thereof. The method comprises a preparation process, a tanning process, a pre-dyeing process, a dyeing process, a drying process and a finishing process, wherein the method comprises, after the preparation process, but before the tanning process, a re-splitting process of splitting pelt into an upper grain layer and a split layer, having a thickness of 2.5-4 mm, and re-splitting the split layer to have a thickness of 1.8-2.5 mm starting from the upper side thereof, thus obtaining split leather, and the finishing process comprises sequentially forming a roll base sealing layer, a roll base cover layer, a medium color top coating layer and a final top coating layer on the split leather, thus treating the surface of the split leather. The split leather for car seats has a luxuriousness close to that of full-grain leather and a soft touch and feel, and can give customers a cost advantage. Also, the range of selection of raw material for manufacturing car seat leather can be widened, and waste can be recycled to thus reduce the generation of waste, thus being helpful to the environment. In addition, leather seats can be diversified and a new product group can be created.

The invention discloses waterproof leather prepared via polymerization deposition of low-temperature plasmas and a preparation method of the waterproof leather. The method comprises the following steps: vaporizing siloxane monomers or crylic acid monomers or acrylate monomers or fluorinated acrylate monomers or fluorosilane monomers under the vacuum degree of 25Pa to 45Pa at the temperature of 25 DEG C to 50 DEG C; then adding the vaporized monomers into plasma reaction equipment according to a certain flow and reacting for 1 to 25 minutes under the discharge power within 0.15W/cm<2> to 1.5W/cm<2>; and depositing the monomers on the leather in the plasma reaction equipment, wherein the thickness of a waterproof membrane deposited on the surface of the leather in a polymerization manner is in a micron level or below the micron level, the static contact angle of the waterproof membrane is within 136 DEG to 155 DEG and the rolling angle of the waterproof membrane is within 7 DEG to 22 DEG, and stagger collagen fibers can be seen clearly by observing through a scanning electron microscope. The method is simple in treatment process, short in time, high in efficiency and low in energy consumption. The obtained waterproof membrane is thin, and not only can maintain the real leather feeling of the surfaces of stone washed leathers, suede leathers, double-purpose leathers and the like but also can maintain the sanitation performance of nature leathers.

The invention provides a dry artificial leather making machine. The machine comprises a frame and a heat wheel mechanism arranged on the frame, wherein the heat wheel mechanism comprises a scraper mechanism, a heat wheel capable of rotating and an abutted wheel; the heat wheel is provided with a heat supply device; the outer circumferential surface of the heat wheel is a flat working surface; the working surface of the scraper mechanism corresponding to the heat wheel is arranged above the heat wheel; and the working surface of the abutted wheel corresponding to the heat wheel is arranged at the lateral side of the heat wheel, and is arranged in front of the scraper mechanism on the rotating direction of the heat wheel. In the invention, scraper equipment, heat equipment, transmission equipment, joint equipment and molding equipment in the traditional process are ingeniously combined to the heat wheel mechanism, the heat wheel is shared in scraping, heating, transmitting, jointing and molding processes, so that scraping, heating, transmitting, jointing and molding steps on paint and a matrix belt can be completed when the paint and the matrix belt pass through the heat wheel mechanism. The dry artificial leather making machine has short production line, and does not require release paper consumption in the producing process.

Disclosed is a control method for synchronized fabric circulation in a conveyer drive fabric dyeing machine. During a dyeing process of fabric, the fabric is driven by a fabric guide to move in a circulating manner and the time period for a cycle of circulation is set in consistency with the time period that a conveyor moving from a rear end to a front end so as to achieve synchronization that makes the circulation smooth. The control method is performed with a computer or a PLC control unit that is supplied with fabric length data or fabric weight data and fabric unit weight data and, based on such data, performs an automatic operation of computation and supply of a signal to speed controllers of the fabric guide motor and the conveyor motor to set the speeds thereof at a predetermined ratio with respect to each other for synchronized operations.

The invention provides a method for compositing leather on the surface of a bonder used by car door interior parts and containing modified diatomite. The method is characterized by spraying the bonder on the interior part surface needing leather compositing and then composting leather, wherein the bonder is prepared from the following raw materials in parts by weight: 57-62 parts of EVA (ethylene-vinyl acetate copolymer), 8-12 parts of epoxy resin, 12-16 parts of C5 petroleum resin, 3-5 parts of microcrystalline wax, 0.5-1 part of WPP type polypropylene wax, 1-2 parts of dimethyl carbonate, 2-4 parts of nanometer celestite powder, 7-10 parts of modified diatomite, 2-3 parts of modified rice hull ash, 1.3-1.6 parts of a silane coupling agent KH560, 0.2-0.4 part of ferrocene, 0.3-0.6 part of n-butyl methacrylate, 0.4-0.6 part of epoxidized soybean oil, 0.4-0.6 part of an antioxidant 264, 0.2-0.4 part of an antioxidant 616 and 0.2-0.4 part of an antioxidant 333. The method has the beneficial effects that the method adopts a molding process, achieves automatic trimming and is high in efficiency; and meanwhile, the specific bonder is adopted, has high bonding strength, is flat and can not bubble after being used for a long time.

The invention discloses a production process of regenerated leather, wherein the regenerated leather is obtained by processes of crushing, fine grinding, material mixing, slurry holding, self draining, dehydration, drying, edge cutting, polishing, ironing and rolling. The invention relates to the production process of the regenerated leather; in the process of material mixing, leather fibers, an external crosslinking cationic organic silicon modified acrylate resin emulsion, a hand feeling agent, a rosin saponification liquid, aluminum sulfate and a dehydrating agent are put into a stirring barrel and are stirred uniformly to form slurry, and after slurry holding, full dehydration is performed so as to ensure that the obtained regenerated leather has soft hand feeling and high leather imitation degree, removed water can be reused, and the cost is saved. The production process of the regenerated leather is simple in process and low in cost, and the prepared regenerated leather has softhand feeling and high leather imitation degree.

The invention discloses leather with creases. The leather is characterized in that: polyurethane fiber filaments are sandwiched in the leather in the leather making process.

The invention relates to a leather changing surface color with temperature, which at least comprises a leather base layer and a paint layer; the paint layer at least comprises a first paint layer thatcoats the leather base layer and a functional layer that coats the first paint layer, the functional layer has a reversible thermochromic agent, and the color of the functional layer changes when thetemperature of the functional layer reaches 30 to 80 DEG C. The invention also relates to a preparation method of the leather. The leather is applied to surface materials, such as automobile seats; when the temperature of the leather reaches a certain value in the range from 30 to 80 DEG C, the color of the functional layer changes to remind a user that the current leather temperature is too high.

The invention provides a splicing device for fur processing. The splicing device comprises a splicing table, a storage chamber is formed inside the splicing table, a threaded rod is arranged inside the storage chamber, the right end of the threaded rod is connected with the inner wall of the storage chamber through a bearing seat, a limiting block is mounted in the middle of the threaded rod, andthe left end of the threaded rod penetrates through the limiting block and a storage table and is provided with a rotating handle. According to the splicing device for fur processing, the rotating handle rotates to make the threaded rod rotate, and threads, on the two sides of the limiting block, of the threaded rod are opposite so that screw blocks can get close to each other or be separated fromeach other, and an extending table is convenient to store or display; a rotating rocker handle rotates to drive a second gear to rotate, so that a first gear drives a first screw rod to rotate, and amoving plate can move up and down; and through second sliding grooves, the moving plate moves smoothly, the height of the extending plate is convenient to adjust, the extending plate is adjusted to the position leveled with the splicing table, the operation area is increased, and using is facilitated.

The invention discloses a pressing device for fire resistance sofa leather. The pressing device for the fire resistance sofa leather comprises a base and supports; the supports are located at the upper and lower ends of the base and the base is fixedly connected with the supports; a control panel is arranged above one side of the base; the upper end of the base is fixedly provided with a spring shock absorber; and the upper end of the spring shock absorber is provided with a workbench, and the workbench is located below the inner sides of the supports. The pressing device for the fire resistance sofa leather is simple in structure, and good in processing effect; a semi-automatic process is adopted instead of traditional manual pressing, not only can the processing efficiency be effectivelyimproves, but also the labor intensity is greatly reduced; a first heating block and a second heating block are installed, not only can the quality of pressing be improved, but also the pressing timeis shortened, so as to improve the working efficiency; and a purifying box is installed, a good purifying effect is achieved, the harmful gas which the sofa leather sends out to cause harm to human body can be effectively avoided, and mass production and using is applicable.

The preparation method of furcoat product with colour pile face includes the following steps: selecting more than one kind of pile dyed with basic colour, mixing coloured piles according to a certain proportion to make colour of pile face uniform, and obtaining pre-designed colour. In order to make pile face colour uniform, flying up and screening every monochromatic pile under the condition of same field intensity to make flying-up capability and flying-up rate of all coloured piles uniform when leather surface is flocked, and making the piles flocked on the leather product keep relative verticality, this can be implemented by regulating field intensity, so that it can obtain furcoat product and leather product with predesigned colour.

The invention relates to the technical field of leather, in particular to equipment special for additionally arranging steel wires in strip-shaped leather. The equipment special for additionally arranging the steel wires in the strip-shaped leather comprises a mounting frame, wherein a moving device is arranged in the mounting frame and is used for moving a mounting block, a cutting device is arranged on the end wall of the side, far away from the mounting frame, of the mounting block, the cutting device is used for cutting and slitting leather, and the steel wires can be conveniently additionally arranged. The equipment special for additionally arranging the steel wires into the strip-shaped leather can achieve slitting on the leather by means of movement of the cutting device; the steel wires can be conveyed by means of the movement of a steel wire conveying mechanism; by means of movement of the steel wire additionally-arranging mechanism, the steel wires can be additionally arranged in a cut slit of the leather; by means of movement of a sealing device, the cut slit can be flattened and pressed; and by means of movement of a heat sealing mechanism, hot melting sewing of the cut slit can be achieved, and the steel wires and the leather are bonded together.