CN108978083B - Method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps - Google Patents
Method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps Download PDFInfo
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- CN108978083B CN108978083B CN201810960780.2A CN201810960780A CN108978083B CN 108978083 B CN108978083 B CN 108978083B CN 201810960780 A CN201810960780 A CN 201810960780A CN 108978083 B CN108978083 B CN 108978083B
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- 239000010985 leather Substances 0.000 title claims abstract description 56
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 39
- 239000011651 chromium Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000002699 waste material Substances 0.000 title claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000012216 screening Methods 0.000 claims abstract description 17
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 12
- 238000005237 degreasing agent Methods 0.000 claims abstract description 12
- 239000013527 degreasing agent Substances 0.000 claims abstract description 12
- 239000008187 granular material Substances 0.000 claims abstract description 9
- 238000007873 sieving Methods 0.000 claims abstract description 7
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims abstract description 6
- 239000004280 Sodium formate Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000003960 organic solvent Substances 0.000 claims abstract description 6
- 238000002791 soaking Methods 0.000 claims abstract description 6
- 239000011780 sodium chloride Substances 0.000 claims abstract description 6
- 239000001509 sodium citrate Substances 0.000 claims abstract description 6
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 6
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims abstract description 6
- 235000019254 sodium formate Nutrition 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000011221 initial treatment Methods 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims 1
- 235000011083 sodium citrates Nutrition 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 208000001840 Dandruff Diseases 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B9/00—Solvent-treatment of textile materials
- D06B9/02—Solvent-treatment of textile materials solvent-dyeing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B9/00—Solvent-treatment of textile materials
- D06B9/04—Successively applying two or more different solvent-based treating materials
-
- 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
- D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/13—Ammonium halides or halides of elements of Groups 1 or 11 of the Periodic Table
-
- 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
- D06M11/73—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 carbon or compounds thereof
- D06M11/76—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 carbon or compounds thereof with carbon oxides or carbonates
-
- 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
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- 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
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
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- 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
- D06M13/244—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 sulfur or phosphorus
- D06M13/248—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 sulfur or phosphorus with compounds containing sulfur
- D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0004—General aspects of dyeing
- D06P1/002—Processing by repeated dyeing, e.g. in different baths
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
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- 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
- D06M2200/50—Modified hand or grip properties; Softening compositions
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Coloring (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The divisional application relates to a method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps, belonging to the technical field of leather. The method comprises the following steps: crushing the waste chromium-containing leather scraps into particles, and drying; drying the granular material; standing for 95-105 days, sieving and screening; soaking in organic solvent, adding hand feeling agent according to the mass of the screened material, stirring for 30-40min, and discharging liquid; and (2) placing the material into a cylinder, adding a degreasing agent according to the mass of the screening material, adding a penetrating agent, adding sodium bicarbonate, sodium formate and sodium citrate, adding a dye, adding a color fixing agent, adding the dye, heating, adding the color fixing agent, adding a fatting agent, adding sodium chloride, adding a slipping agent, taking the material out of the cylinder, dehydrating, and continuously drying to obtain the powdery fluff for electrostatic flocking. The powdery fluff for electrostatic flocking prepared by the method has fine and smooth hand feeling and can endow electrostatic flocking products with good real leather feeling.
Description
The application is a divisional application with the application number of 201610745628.3, the application date of 2016, 08 and 29 and the name of the invention of a method for preparing powdery fluff for electrostatic flocking by using waste chromium-containing leather scraps.
Technical Field
The invention belongs to the technical field of leather, and particularly relates to a method for manufacturing powdery fluff for electrostatic flocking with fine and smooth handfeel by using waste chromium-containing leather scraps.
Background
China is a big leather-making country, millions of tons of leather wastes are produced every year, and about half of the leather wastes contain chromium-containing scurf. The early chromium-containing scurf mainly adopts the traditional waste treatment mode: and the landfill or the incineration brings great harm to the environment. Along with the gradual enhancement of environmental protection consciousness, the traditional treatment mode has been eliminated gradually, and people adopt the mode of recycling to handle chromium-containing dander gradually, not only can reduce the harm that causes the environment, can also practice thrift the cost.
At present, the recycling mode of the chromium-containing scurf is mainly divided into dechroming recycling and dechroming recycling. The chromium-free recovery is generally to recycle the chromium-containing leather scraps into the leather industry; in general, chromium-containing leather scraps are decomposed with acid water into chromium-containing collagen polypeptides having an appropriate molecular weight and then directly used for leather filling, and thus there are many reports on the preparation of a leather filler from chromium-containing leather scraps. The dechromization recovery method is complex, the production cost is still high, and if the dechromization recovery method is adopted to recycle the chromium-containing leather scraps, the produced leather product has no real leather feeling and rough hand feeling, and the quality of the leather product needs to be further improved.
The electrostatic flocking is realized by implanting fluff on the surfaces of various base fabrics by using a high-voltage electrostatic electric field, and a layer of flocking adhesive is generally arranged on the surface of the base fabric, so that the fluff can be adhered to the surface of the base fabric, and after the adhesive is cured, an electrostatic flocking product is obtained. At present, no report related to the preparation of powdery fluff for electrostatic flocking by directly utilizing waste chromium-containing leather scraps is found.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps.
The invention adopts the following technical scheme:
the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises the following steps:
the method comprises the following steps: crushing the waste chromium-containing leather scraps into particles, and drying the particles until the water content is 48-55% to obtain particles;
step two: drying the granular material obtained in the step one until the water content is 20% -30% to obtain a dried material;
step three: standing the dried material obtained in the step two for 95-105 days, and screening to obtain a screened material;
step four: soaking the screened material obtained in the step three into an organic solvent, adding 0.05-0.1% of a hand feeling agent according to the mass of the screened material, stirring for 30-40min, and discharging liquid to obtain a primary treated material;
step five: placing the primary treated material obtained in the fourth step into a cylinder, adding 1-2% of degreasing agent, running for 20-30min, adding 1.5-2% of penetrating agent, running for 20-30min, adding 1-2% of sodium bicarbonate, 4-4.5% of sodium formate and 0.5-0.8% of sodium citrate, running for 25-30min, adding 2-3% of dye, adding 1.2-1.7% of color fixing agent, running for 25-35min, adding 1.5-2.5% of dye, heating to 50-55 ℃, running for 25-35min, adding 1-2% of color fixing agent, running for 8-12min, adding 7-8% of fatting agent, running for 40-50min, adding 4.5-5.5% of sodium chloride, running for 5-15min, adding 0.8-1.2% of slipping agent according to the mass of the screening material obtained in the third step, and (3) operating for 40-50min, taking out of the cylinder, dehydrating until the water content is 50% -60%, and continuously drying until the water content is 15% -20% to obtain the powdery fluff for electrostatic flocking.
Furthermore, the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises the step one, wherein the particles are sieved by a 100-mesh sieve.
Furthermore, the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps is to allow the dried material obtained in the step two to stand for 95 to 105 days at the temperature of between 20 and 26 ℃ and at the relative humidity of between 60 and 70 percent.
Furthermore, the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises a step three of sieving by using a 100-mesh sieve.
Furthermore, the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises the step four, wherein the organic solvent is one of ethanol, ethyl acetate or acetone.
Furthermore, the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps is characterized in that the hand feeling agent in the fourth step is a weak cationic water-based hand feeling agent.
Furthermore, the method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps is characterized in that in the fifth step, the degreasing agent is a nonionic surfactant type degreasing agent; the penetrating agent is fatty alcohol-polyoxyethylene ether; the fatting agent is sulfonated natural oil, and the slipping agent is a solvent type leather slipping agent.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the powdery fluff for electrostatic flocking is prepared from the waste chromium-containing leather scraps, the prepared powdery fluff has fine and smooth handfeel, and the powdery fluff is implanted on the surface of the base fabric by adopting an electrostatic flocking method, so that the base fabric has excellent imitation leather effect and good real leather feeling, and the suede has fine, smooth and soft handfeel. In addition, the method reasonably utilizes the waste chromium-containing leather scraps, is green and environment-friendly, is simple and feasible, and can be popularized and applied in a large range.
In the method, the dried material can be further dried after being naturally placed for a long time, but the dried dander can be irregularly curled, so that the volume of some dander particles is overlarge, and further screening is needed; the addition of the hand feeling agent in the fourth step ensures that the leather scraps have soft, soft and smooth feeling, the hand feeling of the final electrostatic flocking powdery fluff can be ensured, the electrostatic flocking powdery fluff is smooth and fine, and the organic solvent can promote the hand feeling agent to better permeate into the surfaces of the leather scraps; the re-treatment in the fifth step further enhances the hand feeling and the real leather feeling of the leather, and the use of the slipping agent can ensure that the prepared powdery fluff has the effect of smoothness and dryness.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The hand feeling agent used in the invention is weak cationic water-based hand feeling agent with the model of HK-16, and is purchased from Jiaxing Macro scale skinning Co.Ltd; the degreasing agent is a nonionic surfactant degreasing agent with a borron DN model and is purchased from Delaiy leather technology (Qingdao) Co., Ltd; the fatting agent is sulfonated natural grease which is dark brown and can be obtained by purchasing; the slipping agent is a solvent type leather slipping agent, has the model number of HK-15, and is purchased from Jiaxing Honghong skinning Co.
Example 1
The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises the following steps:
the method comprises the following steps: crushing the waste chromium-containing leather scraps into particles, sieving the particles by a 100-mesh sieve, and drying the particles until the water content is 50 percent to obtain a granular material;
step two: drying the granular material obtained in the step one until the water content is 25% to obtain a dried material;
step three: standing the dried material obtained in the second step for 100 days at the temperature of 25 ℃ and the relative humidity of 65%, and screening by a 100-mesh sieve to obtain a screened material;
step four: soaking the screening material obtained in the step three in ethanol, adding 0.08% of a hand feeling agent according to the mass of the screening material, stirring for 35min, and discharging liquid to obtain a primary treatment material;
step five: and (3) placing the primary treatment material obtained in the fourth step into a cylinder, adding 1.5% of degreasing agent according to the mass of the screening material obtained in the third step, running for 25min, adding 1.8% of fatty alcohol-polyoxyethylene ether, running for 30min, adding 1.5% of sodium bicarbonate, 4.2% of sodium formate and 0.6% of sodium citrate, running for 30min, adding 2.6% of dye, adding 1.5% of color fixing agent, running for 30min, adding 2% of dye, heating to 50 ℃, running for 30min, adding 1.2% of color fixing agent, running for 10min, adding 7.5% of sulfonated natural oil, running for 45min, adding 5% of sodium chloride, running for 10min, adding 1% of slipping agent, running for 40min, taking out of the cylinder, dewatering to 55%, and continuously drying to 20% of water content to obtain the fine and smooth powdery flocking fluff with hand feeling.
Example 2
The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises the following steps:
the method comprises the following steps: crushing the waste chromium-containing leather scraps into particles, sieving the particles by a 100-mesh sieve, and drying the particles until the water content is 48 percent to obtain a granular material;
step two: drying the granular material obtained in the step one until the water content is 20% to obtain a dried material;
step three: standing the dried material obtained in the second step for 105 days at 20 ℃ and a relative humidity of 60%, and screening by using a 100-mesh sieve to obtain a screened material;
step four: soaking the screening material obtained in the step three in acetone, adding 0.05% of a hand feeling agent by mass of the screening material, stirring for 30min, and discharging liquid to obtain a primary treatment material;
step five: and (3) placing the primary treatment material obtained in the fourth step into a cylinder, adding 1% of degreasing agent according to the mass of the screening material obtained in the third step, running for 20min, adding 1.5% of fatty alcohol-polyoxyethylene ether, running for 20min, adding 1% of sodium bicarbonate, 4% of sodium formate and 0.5% of sodium citrate, running for 30min, adding 2% of dye, adding 1.2% of color fixing agent, running for 25min, adding 1.5% of dye, heating to 50 ℃, running for 25min, adding 1% of color fixing agent, running for 8min, adding 7% of sulfonated natural oil, running for 40min, adding 4.5% of sodium chloride, running for 5min, adding 0.8% of slipping agent, running for 40min, taking out of the cylinder, dehydrating to 50% of water content, and continuously drying to 15% of water content to obtain the powdery flocking fluff with fine and smooth hand feeling.
Example 3
The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps comprises the following steps:
the method comprises the following steps: crushing the waste chromium-containing leather scraps into particles, sieving the particles by a 100-mesh sieve, and drying the particles until the water content is 55 percent to obtain a granular material;
step two: drying the granular material obtained in the step one until the water content is 30% to obtain a dried material;
step three: standing the dried material obtained in the second step for 95 days at 26 ℃ and at a relative humidity of 70%, and screening by a 100-mesh sieve to obtain a screened material;
step four: soaking the screened material obtained in the step three in ethyl acetate, adding 0.1% of hand feeling agent according to the mass of the screened material, stirring for 40min, and discharging liquid to obtain a primary treated material;
step five: and (3) placing the primary treatment material obtained in the fourth step into a cylinder, adding 2% of degreasing agent according to the mass of the screening material obtained in the third step, running for 30min, adding 2% of fatty alcohol-polyoxyethylene ether, running for 30min, adding 2% of sodium bicarbonate, 4.5% of sodium formate and 0.8% of sodium citrate, running for 20min, adding 3% of dye, adding 1.7% of color fixing agent, running for 35min, adding 2.5% of dye, heating to 55 ℃, running for 35min, adding 2% of color fixing agent, running for 12min, adding 8% of sulfonated natural oil, running for 50min, adding 5.5% of sodium chloride, running for 15min, adding 1.2% of slipping agent, running for 50min, taking out of the cylinder, dehydrating to 60% of water content, and continuously drying to 20% of water content to obtain the powdery flocking fluff with fine and smooth hand feeling.
The powdery fluff for electrostatic flocking prepared in the embodiments 1 to 3 of the invention has good hand feeling, and the hand feeling is fine and smooth, and the powdery fluff is implanted on the surface of the base fabric by adopting an electrostatic flocking method, so that the product has excellent real leather feeling, and the suede has fine, smooth and soft hand feeling.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps is characterized by comprising the following steps:
the method comprises the following steps: crushing the waste chromium-containing leather scraps into particles, and drying the particles until the water content is 50% to obtain a particle material;
step two: drying the granular material obtained in the step one until the water content is 25% to obtain a dried material;
step three: standing the dried material obtained in the step two for 100 days, and screening to obtain a screened material;
step four: soaking the screened material obtained in the step three into an organic solvent, adding 0.08% of a hand feeling agent according to the mass of the screened material, stirring for 35min, and discharging liquid to obtain a primary treated material;
step five: placing the primary treatment material obtained in the fourth step into a cylinder, adding 1.5% of degreasing agent according to the mass of the screening material obtained in the third step, running for 25min, adding 1.8% of penetrating agent, running for 30min, adding 1.5% of sodium bicarbonate, 4.2% of sodium formate and 0.6% of sodium citrate, running for 30min, adding 2.6% of dye, adding 1.5% of color fixing agent, running for 30min, adding 2% of dye, heating to 50 ℃, running for 30min, adding 1.2% of color fixing agent, running for 10min, adding 7.5% of fatting agent, running for 45min, adding 5% of sodium chloride, running for 10min, adding 1% of slipping agent, running for 40min, taking out of the cylinder, dehydrating to 55% of water content, and continuously drying to 20% of water content to obtain the fine and smooth fluff powder for flocking;
wherein, the hand feeling agent in the fourth step is weak cationic water-based hand feeling agent, and the organic solvent in the fourth step is ethanol.
2. The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps as claimed in claim 1, wherein the particles are sieved by a 100-mesh sieve in the step one.
3. The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps as claimed in claim 1, wherein the dried material obtained in the second step is allowed to stand for 95-105 days at 20-26 ℃ and 60% -70% of relative humidity.
4. The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps as claimed in claim 1, wherein the sieving in the third step is 100-mesh sieving.
5. The method for preparing the powdery fluff for electrostatic flocking with fine and smooth hand feeling by using the waste chromium-containing leather scraps as claimed in claim 1, wherein the degreasing agent in the fifth step is a nonionic surfactant type degreasing agent; the penetrating agent is fatty alcohol-polyoxyethylene ether; the fatting agent is sulfonated natural oil, and the slipping agent is a solvent type leather slipping agent.
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| CN201610745628.3A CN106245253B (en) | 2016-08-29 | 2016-08-29 | The method for making the powdered villus of electrostatic spinning with waste and old scurf containing chromium |
| CN201810960780.2A CN108978083B (en) | 2016-08-29 | 2016-08-29 | Method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps |
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| CN201810960780.2A Expired - Fee Related CN108978083B (en) | 2016-08-29 | 2016-08-29 | Method for preparing powdery fluff for electrostatic flocking with fine and smooth hand feeling by using waste chromium-containing leather scraps |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2334782A1 (en) * | 1975-12-13 | 1977-07-08 | Grefrath Velour Ag | HAIR FABRIC PANEL |
| CN1076730A (en) * | 1993-03-17 | 1993-09-29 | 陈云芳 | Leather-nap combining method and products thereof |
| JP2001049573A (en) * | 1999-07-30 | 2001-02-20 | Unitika Ltd | Production of short cut polyester fiber and flocky processing by using the same |
| CN101357517A (en) * | 2008-08-07 | 2009-02-04 | 利展纺织(浙江)有限公司 | Dermis flocked pile leather and manufacture method thereof |
| CN102286790A (en) * | 2011-06-02 | 2011-12-21 | 沈中全 | Preparation method of leather flocking short fiber |
| CN102864581A (en) * | 2012-09-08 | 2013-01-09 | 宁波工程学院 | Manufacture method of ventilating dermal fiber flocking base fabric |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789463B (en) * | 2014-02-17 | 2015-10-28 | 湖南立得皮革有限公司 | Wet blue takes off chromium sofening treatment method |
| CN105483297A (en) * | 2015-11-26 | 2016-04-13 | 广东菲安妮皮具股份有限公司 | Leather softening process |
-
2016
- 2016-08-29 CN CN201610745628.3A patent/CN106245253B/en active Active
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2334782A1 (en) * | 1975-12-13 | 1977-07-08 | Grefrath Velour Ag | HAIR FABRIC PANEL |
| CN1076730A (en) * | 1993-03-17 | 1993-09-29 | 陈云芳 | Leather-nap combining method and products thereof |
| JP2001049573A (en) * | 1999-07-30 | 2001-02-20 | Unitika Ltd | Production of short cut polyester fiber and flocky processing by using the same |
| CN101357517A (en) * | 2008-08-07 | 2009-02-04 | 利展纺织(浙江)有限公司 | Dermis flocked pile leather and manufacture method thereof |
| CN102286790A (en) * | 2011-06-02 | 2011-12-21 | 沈中全 | Preparation method of leather flocking short fiber |
| CN102864581A (en) * | 2012-09-08 | 2013-01-09 | 宁波工程学院 | Manufacture method of ventilating dermal fiber flocking base fabric |
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| CN108978083A (en) | 2018-12-11 |
| CN106245253B (en) | 2018-10-16 |
| CN106245253A (en) | 2016-12-21 |
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