15 results about "Animal hide" patented technology

The invention relates to an electromechanical machine for converting animal skins into leather, consisting of a machine intended to participate in one or more steps of a process for converting any animal skins into leather. The machine is characterized in that it comprises: a main tank (1) in which the animal skin (3) is immersed in a treatment fluid, called syrup (2), containing one or more additives; an impeller suction motor pump (4) circularly conveys the syrup (2) through a water outlet pipe (5) to a reversing valve (5.1), the reversing valve guides the syrup (2) to one or more filters (6), guides the treatment fluid to a heater (7) or a bypass pipe (5.3), and finally reaches a group of storage tanks (8), and the storage tanks (8) are connected with the water outlet pipe (5). The filter is preferably a slow sand type filter, a decanter type filter, a settling tank type filter, an ozone or UVC ultraviolet radiation disinfection type filter, a zeolite type filter, an activated carbon type filter, an anthracite type filter, a silicon dioxide type filter, an argenite type filter or a copper ion generator type filter, and an opening / closing valve (5.2) is arranged on a pipeline behind the reversing valve (5.1). The syrup (2) is then stored and then discharged into the main tank (1) via a return line (5.4). The machine is provided with a gear motor (9), and the gear motor transmits power through a rotating shaft (10) provided with a clamp (13) at the end. The clamp is arranged opposite to another same clamp (13) mounted on the sliding shaft (11); the machine is provided with a fixed stop block (15.1) fixedly connected with the main tank (1) and a movable stop block (15) fixedly connected with the sliding shaft (11); a spiral spring (14) is mounted between the two stop blocks; when the length of the spiral spring changes, the spiral spring can control the reversing device (16), and then the rotating direction of the gear motor (9) is adjusted. The machine is provided with a programmable central computer, and the computer is controlled according to the required characteristics of each animal skin in the aspects of color, tanning agent type, fatliquoring agent type, fixing agent type and the like.

This invention relates to an in-situ polymerization method for preparing leather-based eutectic gels. The method uses acid-treated raw hides from the leather industry as raw materials. A deep eutectic solvent is prepared using choline chloride and glycerol in a molar ratio of 1:2. An impregnation solution consisting of monomers, an initiator, and the deep eutectic solvent is prepared. The acid-treated raw hides are placed in the impregnation solution and stirred at 10–30°C for 5–48 hours. Subsequently, the raw hides are heated at 40–70°C for 2–12 hours to obtain the leather-based eutectic gel. The leather-based eutectic gel prepared by this method inherits the original high mechanical strength and flexibility of animal hides, solving the problem of insufficient mechanical strength in traditional eutectic gels. It also retains the good conductivity and environmental stability of the deep eutectic solvent. The raw materials used in this preparation are natural, low in toxicity, biodegradable, inexpensive, green, and sustainable. The process is simple and easily industrialized.

The invention discloses a portable quick stitching instrument for animal husbandry veterinary surgery, which belongs to the technical field of veterinarians and comprises two parallel shells, a driving roller arranged in inner cavities of the shells and a driven roller in transmission with the driving roller. The driving roller and the driven roller are sleeved with a belt. A plurality of clamping rods which are close to one another are uniformly distributed on the belt; a driving bin is arranged between the two shells, and a driving assembly in transmission connection with the driving roller is arranged on the driving bin; a sewing assembly in transmission connection with the driving assembly is arranged below the driving assembly. According to the portable rapid stitching instrument for animal husbandry and veterinary surgery, through adjustable clamping, the portable rapid stitching instrument is adaptive to animal skins with different thicknesses and high elasticity and is matched with an accurate chain transmission stepping and stable nailing structure, skin stitching of dogs, cats and animal husbandry can be rapidly completed with one hand, the universality is high, operation is easy and convenient, and the stitching quality is stable.

This application discloses a method for extracting collagen from fresh animal hide and hydrolyzed collagen, relating to the field of collagen extraction technology. The method includes the following steps: S1, crushing fresh animal hide, heating and soaking to obtain a pretreated material; S2, adding hyaluronidase and chondroitin sulfate ABC enzyme to the pretreated material, adjusting the pH to 5-6, stirring evenly, adding sodium chloride solution, allowing it to settle, centrifuging, then adding acetic acid and papain, heating and stirring, filtering to obtain a swollen body; S3, mixing the swollen body with lipase, heating and treating, using an oil remover to remove oil, crushing to obtain dermal fragments; S4, mixing the dermal fragments with protease, heating and stirring, centrifuging to obtain a hydrolysate; S5, adsorbing the hydrolysate with activated carbon, microfiltration, spray drying to obtain hydrolyzed collagen. This application has the effect of improving the extraction rate of hydrolyzed collagen.

There is provided a process for tanning animal hide comprising treating an animal hide with at least one tanning agent and exposing the treated hide to a dose of ionising radiation of from 1 to 500 kJ / kg wherein the ionising radiation is in the form of a charged particle beam.

A method for dehairing of animal hides and skins is described. The method includes treating the hide or skin with a dehairing formulation that includes at least one carbohydrase enzyme and treating with at least calcium hydroxide and further utilizing at least one reducing chemical during the dehairing step. A dehairing formulation is further described.

This invention relates to devices that remove hair from animal hide. Previously, removing hair from an animal hide was a difficult process that frequently damaged the animal hide rendering the animal hide unfit for human consumption. Embodiments of the present invention use an automated process for animal hide hair removal using laser light.

The invention relates to the technical field of sampling detection, in particular to a sampling detection device and method.The sampling detection device comprises a shell, a control module, an operation panel and a sampling assembly, the sampling assembly comprises a puncture cylinder, two arc-shaped rotating plates, two negative pressure mechanisms, two cutting mechanisms and an external binding unit, the negative pressure mechanisms are started, muscular tissue is sucked into an opening, and the external binding unit is used for binding the muscular tissue; meanwhile, muscular tissue liquid is sucked; after the muscle tissue liquid is sucked, the cutting mechanism is started to cut the muscle tissue sucked in the opening; the puncture cylinder is separated from the animal subcutaneous part, the external binding unit cancels binding, the shell is taken down, sampling is completed, and subsequent detection operation is carried out; therefore, the external binding unit can form rigid fixation between the equipment and an animal sampling part, and meanwhile, the negative pressure mechanism can firmly adsorb muscular tissues to be sampled in the opening, so that the influence of subcutaneous muscle contraction caused by animal struggling on the sampling position is counteracted, and further synchronous and accurate sampling of the muscular tissues and tissue fluid is realized.

A tannery product designed to be introduced into a bath for oxidative hair removal treatment of animal hides and skins includes a perhydrate compound, an alkalizing agent and an activating agent. The treatment bath can be used in a method for oxidative hair removal of animal hides and skins. The method includes introducing the activating agent into the bath in a proportion to the weight of the hide and skin to be treated between 0.0001 and 0.01.

The invention belongs to the technical field of port animal quarantine, and discloses an imported animal skin pathogenic microorganism rapid early warning method based on metagenome sequencing, and the method comprises the following steps: optimization pretreatment of an imported animal skin sample: taking the imported animal skin sample, carrying out sterile grinding to prepare a homogenate, and carrying out spray drying on the homogenate; carrying out nucleic acid enrichment by combining protease K + lysozyme composite enzymolysis with a magnetic bead method; carrying out metagenome sequencing and bioinformatics analysis; performing biological safety risk research, judgment and early warning: performing risk grading on pathogens and generating early warning information on the basis of an analysis result in the step S2 and in combination with an imported non-edible animal product monitoring technical table; efficient and accurate detection of target pathogens: aiming at the high-risk pathogens early-warned in the step S3, developing a standardized detection reagent by adopting at least one technology of CRISPR / Cas, recombinant RPA and digital PCR, and carrying out targeted verification detection on the sample. The sample pretreatment is adaptive to the characteristics of animal skin, so that the enrichment efficiency of pathogenic nucleic acid is improved; a multi-technology detection system is combined, and the requirements of'broad-spectrum early warning 'and'accurate verification' are considered; technical support is provided for port animal quarantine, and biological safety hazards are effectively prevented and controlled.

The fly swatter plate is made from recycled paper, cardboard, or pressed board, with a large proportion consisting of rapidly renewable raw materials such as grass, straw, bamboo, cotton, linen, hemp, jute, flax, raffia, wood pulp, palm leaves, or coconut. The cellulose content of the paper, cardboard, or pressed board can also consist of recycled paper or wood waste combined with virgin wood cellulose, or a mixture of both. Leather scraps from the hide of any animal are also possible.

Methods for dehairing of animal hides and skins are described. The methods can include treating the hide or skin with a dehairing formulation that includes at least one carbohydrase enzyme and treating with at least calcium hydroxide and further utilizing at least one reducing chemical during the dehairing step. A dehairing formulation is further described.

The invention relates to a method for producing a nanometric lubricating composition based on the formation of fatty acid salts from oils composed of one or more types of animal or vegetable oil, and to the use thereof to lubricate tanned animal hide (leather) so as to improve the flexibility and softness of the tanned animal hide (leather).

A method for producing a binder, wherein an animal hide is subjected to a tanning process for the production of leather using at least one vegetable tanning agent to open the molecular structure of collagen fibers contained in the animal hide, wherein at least one additive is added to the animal hide during tanning, wherein the vegetable tanning agent used is quebracho, mimosa, oak, an extracted polyphenol compound or an extract of olive leaves containing phenolic compounds, wherein the binder is obtained by grinding the leather to a particle size of less than 5 mm, wherein the collagen fibers in the leather are made hydrophobic by adding hydrophobized highly dispersed silica and / or synthetic X-ray amorphous silicon dioxide, and wherein the ground leather is chambered and covered with cork.