US20240052554A1 - Method for modifying animal hair - Google Patents
Method for modifying animal hair Download PDFInfo
- Publication number
- US20240052554A1 US20240052554A1 US18/260,386 US202118260386A US2024052554A1 US 20240052554 A1 US20240052554 A1 US 20240052554A1 US 202118260386 A US202118260386 A US 202118260386A US 2024052554 A1 US2024052554 A1 US 2024052554A1
- Authority
- US
- United States
- Prior art keywords
- animal hair
- treatment
- hair
- pilling
- modification method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000004209 hair Anatomy 0.000 title claims abstract description 67
- 241001465754 Metazoa Species 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000011282 treatment Methods 0.000 claims abstract description 98
- 102000004190 Enzymes Human genes 0.000 claims abstract description 32
- 108090000790 Enzymes Proteins 0.000 claims abstract description 32
- 108060008539 Transglutaminase Proteins 0.000 claims abstract description 28
- 102000003601 transglutaminase Human genes 0.000 claims abstract description 28
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 27
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 27
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 20
- 238000002715 modification method Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000007935 neutral effect Effects 0.000 claims abstract description 11
- 210000002268 wool Anatomy 0.000 claims description 17
- 241000283707 Capra Species 0.000 claims description 13
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 6
- 150000004675 formic acid derivatives Chemical class 0.000 claims description 3
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical class OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 3
- 150000003891 oxalate salts Chemical class 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 32
- 235000018102 proteins Nutrition 0.000 description 23
- 239000004744 fabric Substances 0.000 description 16
- 239000000047 product Substances 0.000 description 15
- 238000011156 evaluation Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 238000002156 mixing Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 239000006187 pill Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 108010010803 Gelatin Proteins 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 6
- 229920000159 gelatin Polymers 0.000 description 6
- 239000008273 gelatin Substances 0.000 description 6
- 235000019322 gelatine Nutrition 0.000 description 6
- 235000011852 gelatine desserts Nutrition 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 230000001953 sensory effect Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000012064 sodium phosphate buffer Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 108010076876 Keratins Proteins 0.000 description 1
- 102000011782 Keratins Human genes 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 102000014171 Milk Proteins Human genes 0.000 description 1
- 108010011756 Milk Proteins Proteins 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 241001416177 Vicugna pacos Species 0.000 description 1
- 125000000539 amino acid group Chemical group 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 210000000085 cashmere Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000413 hydrolysate Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000021239 milk protein Nutrition 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 235000019710 soybean protein Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/54—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur dioxide; with sulfurous acid or its salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/192—Polycarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/006—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with wool-protecting agents; with anti-moth agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
Definitions
- the present invention relates to a method for modifying animal hair, in particular a modification method for preventing so-called pilling of animal hair, and animal hair obtained through modification treatment.
- Products obtained from animal hair, such as wool have drawbacks including occurrence of pills, which is called pilling.
- pilling prevention As prevention of pills (also expressed as “pilling prevention”), there may be taken a measure of reducing the strength of wool using a strong agent to remove pills and thereby reduce the amount of pills attaching to a processed product and pretend no generation of pills.
- weakening of wool reduces the thickness of the wool itself, affecting the texture of the wool itself.
- a touch peculiar to wool is lost due to the resin coating.
- JP-A-3-213574 discloses that a cuticle part is crosslinked by treating animal hair fibers with an aqueous enzyme solution.
- the cuticle part is scaly existing outside the animal hair fibers, and it is known that this is a cause of pilling.
- Patent Literature 1 proposes that animal hair fibers are treated with an enzyme (including a transglutaminase) to prevent pilling. In this treatment, sufficient pilling prevention performance has not necessarily been obtained.
- Patent Literature 2 JP-A-2002-51555 (Patent Literature 2) describes a technique of treating animal hair with a protease and a transglutaminase.
- Patent Literature 3 describes a technique of attaching a wheat protein partial hydrolysate to fibers followed by making a transglutaminase act. With the methods of Patent Literature 2 and 3, sufficient pilling prevention performance has not been obtained.
- the present invention has been devised in view of the above circumstances of the prior art, and an object thereof is to provide a modification method in which animal hair having an anti-pilling property can be obtained through simple treatment.
- the present invention provides the following embodiments.
- the present invention is a technique relating to modification treatment of animal hair, and is a treatment technique for providing animal hair having high anti-pilling properties suitable in terms of safety and treatment cost.
- the anti-pilling effect acquired by the present invention makes it possible to provide processed wool fiber having superior washing resistance, and enables the processed wool fiber to be used widely for applications or products difficult with processed fibers of conventional wool or other animal hairs.
- the method for modifying animal hair of the present invention includes a reduction treatment step of treating animal hair with a reduction treatment liquid containing a reducing agent under a neutral or weakly alkaline condition, and an enzyme treatment step of treating the animal hair subjected to the reduction treatment with an enzyme treatment liquid containing a water-soluble protein and a transglutaminase.
- the modification method of the present invention is mainly intended to the modification of animal hair, but the treatment of the present invention may be performed on a blended fiber including artificial fiber such as polyester fiber and animal hair. However, the effect of the treatment of the present invention cannot be expected for artificial fibers.
- animal fiber containing natural keratin is preferably used as a raw material.
- animal hair include wool, goat hair, rabbit hair, and alpaca hair.
- fiber form thereof include hair, yarn, knitted product, and woven product.
- animal hair is treated with a reduction treatment liquid containing a reducing agent under a neutral or weakly alkaline condition.
- the neutral or weakly alkaline expressed in pH, is pH 7 to 9, but this is not necessarily the case. Therefore, the treatment may be performed in a slightly acidic region (specifically, a region of pH 6 to 7) to an alkaline region exceeding pH 9, but the treatment is mainly performed in a region of pH 7 to 9.
- the pH is preferably adjusted with a buffer.
- the reducing agent is not particularly limited as long as it is a compound that acts on a substance to reduce the substance and is physiologically acceptable, but it is preferable to use an edible agent such as a sulfite salt, a bisulfite salt, an oxalate salt, a formate salt, or a gallate salt in consideration of environmental problems. It is to be noted that physiologically acceptable means physiologically low-toxic or nontoxic.
- the reduction treatment liquid is an aqueous solution containing the reducing agent, and the blending amount of the reducing agent is 5% owf (owf is an abbreviation of “on the weight of fiber” and represents the weight with respect to the fiber weight) to 25% owf, preferably 10% owf to 20% owf, and more preferably 12 to 18% owf with respect to the fiber. If the blending amount is less than 5% owf, the reduction treatment is advanced insufficiently to result in an insufficient final anti-pilling property. If the blending amount is more than 25% owf, there is no problem, but the anti-pilling does not increase with the increase in the blending amount and the reducing agent is wasted.
- owf is an abbreviation of “on the weight of fiber” and represents the weight with respect to the fiber weight
- the reaction time in the reduction treatment step is not particularly limited as long as the reducing agent can act on the fiber, but is 10 to 120 minutes, preferably 15 to 90 minutes, and more preferably 30 to 60 minutes. If the reaction time is less than 10 minutes, the reduction proceeds insufficiently, and even if the reaction time exceeds 120 minutes, the reduction amount does not increase.
- the reaction temperature is also not particularly limited as long as the reducing agent can act on the fiber, but is preferably 70° C. or higher. The upper limit thereof is 95° C. or lower. When the reaction temperature is lower than 70° C., the reducing ability is insufficient, whereas when the reaction temperature is higher than 95° C., the fiber may be damaged. After the fiber is immersed in the treatment liquid, any method of shaking, jetting, and stirring may be used, but a method of increasing contact between the fiber and the treatment liquid is preferable.
- the animal hair obtained in the reduction treatment step is then subjected to an enzyme treatment step.
- the enzyme treatment step the animal hair subjected to the reduction treatment is treated with an enzyme treatment liquid (aqueous solution) containing a water-soluble protein and a transglutaminase.
- the water-soluble protein according to the present invention is not particularly limited as long as it is a water-soluble protein derived from an animal or a plant, but it is preferable to use an animal-derived water-soluble protein.
- the water-soluble protein is a water-soluble protein among proteins obtained from animals and plants, and is obtained directly from an animal or a plant or through a specific treatment, and examples thereof include gelatin, soybean protein, milk protein, and peptide. In the present invention, animal-derived gelatin is preferred.
- the water-soluble protein is preferably blended in an amount of 3% owf to 25% owf, more preferably 5% to 15% owf, and still more preferably 5% owf to 10% owf mass % with respect to the fiber.
- the blending amount is less than 3% owf, there is a disadvantage that the anti-pilling property is deteriorated or the texture is deteriorated due to an insufficient binding amount of the protein by a transglutaminase.
- the blending amount exceeds 25% owf, there is no problem, but improvement of the anti-pilling effect by excessive addition cannot be expected, and the added protein is wasted.
- transglutaminase is used as an enzyme.
- a transglutaminase is an enzyme that acts on amino acid residues of glutamic acid and lysine on a protein to crosslink the protein, and may be any one as long as it has activity.
- the source thereof those derived from various sources such as those derived from mammals, those derived from fish, and those derived from microorganisms are known, and any of them may be used.
- the transglutaminase is preferably blended in an amount of 0.1 U/g-fiber (activity value of transglutaminase for 1 g of processed fiber) to 100 U/g-fiber, more preferably 1 U/g-fiber to 50 U/g-fiber, and still more preferably 5 U/g-fiber to 25 U/g-fiber.
- 0.1 U/g-fiber activity value of transglutaminase for 1 g of processed fiber
- the blending amount is less than 0.1 U/g-fiber, there is a disadvantage that the anti-pilling effect and the texture are deteriorated due to an insufficient binding amount of the protein.
- the blending amount exceeds 100 U/g-fiber, there is no problem, but improvement of the anti-pilling effect by excessive addition cannot be expected, and the added transglutaminase is wasted.
- Examples of the enzyme treatment step of the present invention include a method in which animal hair obtained in the reduction treatment step is immersed in an enzyme treatment liquid containing a water-soluble protein and a transglutaminase.
- the reaction time in the enzyme treatment step is not particularly limited as long as the transglutaminase can act on animal hair, but is preferably 30 minutes or more, and more preferably 60 minutes or more.
- the upper limit of the treatment time is 180 minutes or less, and preferably 90 minutes or less. When the treatment time is less than 30 minutes, the enzyme treatment proceeds insufficiently, and even when it exceeds 180 minutes, the performance does not increase according to the increase in time capacity.
- the reaction temperature is not particularly limited as long as the transglutaminase can retain the activity, but is preferably 30 to 60° C., and more preferably 40 to 50° C.
- the enzyme treatment proceeds insufficiently, and conversely, the enzyme treatment at a temperature higher than 60° C. is not realistic.
- the animal hair subjected to the treatment according to the present invention is animal hair having the features described below.
- a characteristic of the animal hair according to the present invention which should be emphasized is that the animal hair is superior in anti-pilling property, and the animal hair according to the present invention can be widely used for applications and products that have been difficult with the animal hair according to the prior art.
- the animal hair of the present invention is a product prepared by subjecting animal hair to reduction treatment under a neutral to weakly alkaline pH condition, and further making a transglutaminase act in the presence of a water-soluble protein.
- Examples of the form of the processed animal hair products include coats, sweaters, pants, jackets, mufflers, lap robes, gloves, and hats, but the form is not particularly limited.
- the “piling property” means that fibers are entangled with each other and pills are formed on a surface, and is found on knitted products and woven products.
- the pilling property can be determined in accordance with the testing methods for pilling of woven products and knitted products of JIS L 1076, and is expressed as a pilling grade.
- the reducing agent to be used in the treatment step a chemical approved as a food and/or a food additive is used, and the reducing agent makes it possible to provide a technique that is useful not only in terms of sustainability but also in terms of safety.
- a reduction treatment solution having a bath ratio of 1:30 with respect to the weight of a knitted fabric of 100% goat hair was used.
- the reduction treatment solution was prepared by dissolving 12% owf of sodium sulfite as a reducing agent and 2 g/L of a pH 7 sodium phosphate buffer.
- the knitted fabric was shaken for 60 minutes using a horizontal shaker to perform reduction treatment.
- transglutaminase treatment treatment in which a transglutaminase was made to act in the presence of protein
- the transglutaminase treatment liquid was prepared by dissolving 10% owf of gelatin APH-100 (porcine skin-derived gelatin manufactured by Nitta Gelatin Inc.) and 15 U/g-fiber of a transglutaminase.
- the goat hair was shaken at 50° C. for 60 minutes using a horizontal shaker.
- a knitted fabric washed with water, dehydrated, and dried was obtained. The knitted fabric obtained was evaluated for anti-pilling property and texture.
- the “texture” is a subjective evaluation that expresses a hand touch feeling or a skin touch feeling of a fiber, a woven product, or a knitted product with a sense of human sensory.
- the evaluation of texture performed in examples was performed by relative evaluation with respect to an unprocessed fabric. Sensory evaluation was performed on softness, warmness, swelling, and slimy feeling, and the results were all good.
- Example 1 A knitted fabric of 100% wool was subjected to the modification treatment in the same manner as in Example 1, affording a knitted fabric, and the anti-pilling property and the texture thereof were evaluated in the same manner as in Example 1. The result of the anti-pilling property is described in Table 1.
- a knitted fabric of 100% goat hair was modified through the same treatment as in Example 1 with the condition in the reduction treatment modified to pH 8, affording a knitted fabric, and the anti-pilling property and the texture thereof were evaluated in the same manner as in example 1.
- the result of the anti-pilling property is described in Table 1.
- a knitted fabric of 100% goat hair was subjected to modification treatment in the same manner as in Example 1 except that the condition in the reduction treatment in Example 1 was modified to pH 5, affording a knitted fabric, and the anti-pilling property thereof were evaluated in the same manner as in Example 1.
- the pilling grade of Grade 2.5 was obtained.
- a decomposition enzyme treatment solution having a bath ratio of 1:30 with respect to the weight of a knitted fabric of 100% goat hair was used.
- the decomposition enzyme treatment solution was prepared by dissolving 0.59% owf of BIOPRASE APL-30 (manufactured by Nagase ChemteX Corporation) as a decomposition enzyme and 2 g/L of a pH 8 sodium phosphate buffer. Cashmere was shaken at 44° C. for 40 minutes using a horizontal shaker to perform a decomposition enzyme treatment.
- transglutaminase treatment was performed in the same manner as in Example 1 with a transglutaminase treatment liquid to which no water-soluble protein was added, followed by washing with water, dehydration, and drying.
- the pilling grade was Grade 1.5, and the anti-pilling property was not improved.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-001597 | 2021-01-07 | ||
JP2021001597A JP6889962B1 (ja) | 2021-01-07 | 2021-01-07 | 獣毛の改質方法 |
PCT/JP2021/032840 WO2022149306A1 (ja) | 2021-01-07 | 2021-09-07 | 獣毛の改質方法 |
Publications (1)
Publication Number | Publication Date |
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US20240052554A1 true US20240052554A1 (en) | 2024-02-15 |
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ID=76429589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US18/260,386 Pending US20240052554A1 (en) | 2021-01-07 | 2021-09-07 | Method for modifying animal hair |
Country Status (5)
Country | Link |
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US (1) | US20240052554A1 (ja) |
EP (1) | EP4276240A1 (ja) |
JP (1) | JP6889962B1 (ja) |
CN (1) | CN116710609A (ja) |
WO (1) | WO2022149306A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH03213574A (ja) | 1990-01-10 | 1991-09-18 | Ajinomoto Co Inc | 獣毛繊維の改質方法 |
JPH093772A (ja) * | 1995-06-15 | 1997-01-07 | Toray Ind Inc | 繊維構造物およびその製造方法 |
JPH093773A (ja) * | 1995-06-16 | 1997-01-07 | Toray Ind Inc | 繊維構造物およびその製造方法 |
JP2002515555A (ja) * | 1998-05-20 | 2002-05-28 | ノボザイムス ノース アメリカ,インコーポレイティド | 羊毛の酵素処理法 |
GB0016914D0 (en) * | 2000-07-10 | 2000-08-30 | Univ Nottingham Trent | A method for enzymatic treatment of wool |
JP2002051555A (ja) | 2000-07-31 | 2002-02-15 | Sony Corp | スイッチング電源回路 |
AU2001282199A1 (en) * | 2000-08-15 | 2002-02-25 | Valtion Teknillinen Tutkimuskeskus | A tyrosinase enzyme |
EP2213785A4 (en) | 2007-11-19 | 2013-01-09 | Ajinomoto Kk | TREATED FIBER AND METHOD FOR MANUFACTURING THE SAME |
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2021
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- 2021-09-07 WO PCT/JP2021/032840 patent/WO2022149306A1/ja active Application Filing
- 2021-09-07 CN CN202180089582.3A patent/CN116710609A/zh active Pending
- 2021-09-07 US US18/260,386 patent/US20240052554A1/en active Pending
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JP6889962B1 (ja) | 2021-06-18 |
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