CN111424438A - Production process of collagen fiber leather for clothing - Google Patents
Production process of collagen fiber leather for clothing Download PDFInfo
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- CN111424438A CN111424438A CN202010240989.9A CN202010240989A CN111424438A CN 111424438 A CN111424438 A CN 111424438A CN 202010240989 A CN202010240989 A CN 202010240989A CN 111424438 A CN111424438 A CN 111424438A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C5/00—Degreasing leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G11/00—Disintegrating fibre-containing articles to obtain fibres for re-use
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4266—Natural fibres not provided for in group D04H1/425
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/4334—Polyamides
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
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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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/32—Material containing basic nitrogen containing amide groups leather skins
- D06P3/3286—Material containing basic nitrogen containing amide groups leather skins using reactive dyes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
Abstract
The invention discloses a production process of collagen fiber leather for clothing, which mainly comprises cowhide fiber non-woven leather cloth, a wet method bass layer and a dry method veneer layer; the production process comprises the following steps: splitting, dyeing fibers, producing leather base cloth, grinding and shaping leather, preparing a wet base layer, preparing a dry laminated surface layer, preparing finished leather, processing a rear section, inspecting the finished leather, rolling and packaging. The invention is woven by long fiber, and the end consumer can dry clean and wash after making clothes, thus avoiding the trouble that the leather garment needs regular maintenance; in addition, the fabric is prepared by a special weaving and artificial leather wet method and a special dry method; the product has the components and excellent characteristics of the dermis, and has the advantages of low price, high utilization rate, good serviceability, easy management and the like besides the ecological significance. The method has good supplement to the waste treatment in the leather industry, and is a revolutionary breakthrough in the artificial leather industry, particularly in the field of clothes.
Description
Technical Field
The invention relates to the technical field of artificial leather, in particular to a production process of collagen fiber leather for clothing.
Background
The existing recovery process is to break the leather waste into powder (also called as hide powder), then to make hide powder into sheet by using glue through electrostatic flocking process, and to adhere on the non-woven fabric layer. The production process generates a large amount of dust pollution, is not beneficial to the recognized health, the bonding process completely depends on glue, and the chemical composition is too high, so that the ecological environment protection concept is not met. The product is thicker and harder, and is more applied to the fields of shoe materials and furniture. The key point is that the products are made by gluing, are relatively waterproof, and have a large amount of powder falling off after water passes through. The clothing leather is soft and comfortable, multiple water kneading procedures are required in the processing process, the leather is uneven in thickness, and the wet process of the artificial leather is only suitable for the relatively flat fabric. Therefore, how to provide a production process of collagen fiber leather for clothing, which can solve the above problems, is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a production process of collagen fiber leather for clothing, which has the characteristics of low price, high utilization rate, good serviceability, easy care and the like.
In order to achieve the purpose, the invention provides the following technical scheme:
a production process of collagen fiber leather for clothing is characterized in that the leather mainly comprises cowhide fiber non-woven leather cloth, a wet method bass layer and a dry method veneer layer; the production process comprises the following steps: splitting, dyeing fibers, producing leather base cloth, grinding and shaping leather, preparing a wet base layer, preparing a dry laminated surface layer, preparing finished leather, processing a rear section, inspecting the finished leather, rolling and packaging; wherein, the fiber opening process comprises the following four steps:
(1) screening materials: selecting blue leather waste before delamination of cow leather, and screening materials with the thickness range of about 3-4 mm;
(2) pretreatment: soaking the blue leather waste in a sodium carbonate solution with the mass concentration of 10% for 8 hours at the temperature of 40 ℃, adding clear water to adjust the pH value to 7 +/-0.5, adding 1% of lipase to continue soaking for 2 hours, then carrying out extrusion cleaning, wherein the extrusion pressure is 10 tons, the extrusion time is 20 minutes, cleaning is carried out for 15 minutes after extrusion, and after cleaning, adding a proper amount of Gemini cation softener and soaking for 2-3 hours;
(3) secondary extrusion degreasing: extruding at 10 tons for 15 minutes, cleaning for 15 minutes after extruding, degreasing the wet blue leather by a degreasing machine, and drying to about 70%;
(4) opening and removing impurities: processing the degreased fragments by an opening and impurity removing machine; the coarse fiber is subjected to twice opening and impurity removal, the coarse fiber is primarily opened into coarse fiber, the coarse fiber is subjected to primary air separation and slag removal, the coarse fiber is further opened into fine fiber, and the fine fiber is subjected to secondary air separation and slag removal to obtain the cowhide fiber with the length of about 15mm and the fineness of 0.1-0.3 mm.
Preferably, in the above production process of collagen fiber leather for clothing, the fiber is dyed: the dyeing uses low-temperature reactive dye, the water softener is added in the dyeing process, the hardness of water can be effectively reduced, the damage to fibers is reduced, the temperature is controlled to be lower than 80 ℃ in the whole dyeing and drying process, and the collagen component in the fibers is prevented from being damaged by high temperature.
Preferably, in the production process of the collagen fiber leather for clothing, the water softener in the fiber dyeing step is sodium hexametaphosphate or a chelating dispersant.
Preferably, in the above production process of collagen fiber leather for clothing, the leather base cloth production process includes: 90% of polyester fiber and 20% of nylon fiber are cross-lapped through lapping, a non-woven fabric is manufactured through a spunlace machine, then 95% of cowhide fiber is mixed with 5% of polyester fiber to form a mixed fiber layer, the mixed fiber layer is cross-lapped through the lapping machine, the non-woven fabric is conveyed through a conveyor belt synchronously, and the non-woven fabric are spun-laced through the spunlace machine at high pressure to be combined into a non-woven leather cloth.
Preferably, in the production process of the collagen fiber leather for clothing, the thickness of the non-woven fabric in the production process of the leather base fabric is 0.2mm, and the gram weight is 50 g/m; the length of the polyester fiber is 5-10mm, and the fineness is 0.3 dtex; the thickness of the finished non-woven leather cloth is 0.45-0.5mm, and the square meter of the gram weight is 140-150 g.
Preferably, in the above production process of collagen fiber leather for clothing, the skin polishing and shaping step: and (3) grinding the back surface of the non-woven leather cloth by using a leather grinding machine to obtain a hair effect of about 0.1 mm.
Preferably, in the above production process of collagen fiber leather for clothing, the wet-process bass layer preparation step: mixing dimethylformamide, chitin powder and ramie fiber ultrafine powder according to a proportion, quickly stirring for 8 minutes at a speed of 200 r/min, then sequentially adding a foam cell regulating auxiliary agent, a waterproof auxiliary agent, an ultra-soft polyurethane resin, a dispersing agent and color paste according to a proportion, stirring for 30 minutes at a speed of 600 r/min for vacuum defoaming to form polyurethane slurry, then soaking the non-woven leather cloth in a water tank containing 1% of an anionic surfactant, heating by a ironing roller to remove water in the non-woven leather cloth, uniformly coating the polyurethane slurry on the non-woven leather cloth at the temperature of 80-100 ℃, then solidifying for 10 minutes in an aqueous solution containing 15% of dimethylformamide, and drying at the temperature of 30 ℃ by washing at 100 ℃ after the solidification to obtain the cowhide fiber Bass.
Preferably, in the above production process of collagen fiber leather for clothing, the dry laminated upper layer preparation step: the dry-process laminated surface layer consists of a fabric and a bottom material, wherein the fabric comprises the following components in parts by weight: 80 parts of dimethylformamide, 5 parts of color chips and 80 parts of soft faced polyurethane resin, wherein the base material comprises the following components in parts by weight: 80 parts of dimethylformamide, 5 parts of color chips and 100 parts of soft veneering polyurethane resin, respectively mixing and stirring the components of the fabric and the backing material to obtain surface layer slurry and bottom layer slurry, coating the bottom layer slurry on release paper, drying and cooling the release paper, then coating the surface layer slurry, and drying and reeling to obtain the dry veneering layer.
Preferably, in the above production process of collagen fiber leather for clothing, the finished leather preparation process comprises: and (3) attaching the wet base layer and the dry surface attaching layer through an attaching device, and peeling the release paper after drying and cooling to obtain the finished leather.
Preferably, in the above production process of collagen fiber leather for clothing, the finished leather preparation process comprises: putting the finished leather into an aqueous solution added with 3% of a softening agent, carrying out water kneading for 20 minutes by a grain kneading device, carrying out water temperature of 40 ℃, rolling and drying after water kneading, and carrying out dry kneading and drying at 60 ℃ to prepare the finished leather for the super-soft cowhide fiber clothing, wherein the thickness of the finished leather is 0.6-0.65mm, and the gram weight of the finished leather is 230 grams per square meter.
According to the technical scheme, compared with the prior art, the leather powder processing method effectively solves the problem that the leather powder process cannot break through, is manufactured by weaving long fibers, can adjust the thickness according to needs, can be washed by water at will in the processing process of clothing leather, can be used for dry cleaning and washing by terminal consumers after the clothing is manufactured, and avoids the trouble that the leather clothing needs to be maintained at regular intervals; in addition, the fabric is manufactured by a special weaving and artificial leather wet method and dry method process by referring to the weaving process of the traditional leather base fabric and trying to break through a new material which is an ecological environment-friendly composite national sustainable development strategy and is made of cow leather fiber; the product has the components and excellent characteristics of the dermis, and has the advantages of low price, high utilization rate, good serviceability, easy management and the like besides the ecological significance. The method has good supplement to the waste treatment in the leather industry, and is a revolutionary breakthrough in the artificial leather industry, particularly in the field of clothes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a production process of collagen fiber leather for clothing, which has the characteristics of low price, high utilization rate, good serviceability, easy management and the like.
Example 1:
an ultra-soft cowhide fiber artificial leather comprises cowhide fiber non-woven leather cloth, a wet method bass layer and a dry method veneering layer; the material proportion of each layer is as follows:
wherein the wet-process Bass layer comprises the following components in parts by weight: 50 parts of soft polyurethane resin, 50 parts of super-soft polyurethane resin, 70 parts of dimethylformamide, 4 parts of foam hole regulator, 1 part of color paste, 15 parts of ramie fiber powder, 10 parts of chitin powder, 0.2 part of dispersant and 0.2 part of waterproof assistant
The dry-process laminated surface layer consists of surface layer slurry and a bottom material, and the surface layer slurry is proportioned as follows: 70 parts of dimethylformamide, 6 pieces of color chips and 70 parts of soft faced polyurethane resin; proportioning of bottom layer slurry: 90 parts of dimethyl formamide, 5 parts of color chips and 110 parts of soft faced polyurethane resin
The production process of the super-soft cowhide fiber artificial leather comprises the following specific steps:
A. preparing a wet base layer: firstly, mixing dimethylformamide, chitin powder and ramie fiber superfine powder according to a proportion, quickly stirring for 10 minutes at a speed of 200 r/min, then sequentially adding a foam cell regulating auxiliary agent, a waterproof auxiliary agent, super-soft polyurethane resin, a dispersing agent and color paste according to a proportion, stirring for 25 minutes at a speed of 600 r/min for vacuum defoaming to form polyurethane slurry, then soaking the non-woven leather cloth in a water tank containing 1% of anionic surfactant, heating by a ironing roller to remove water in the non-woven leather cloth, uniformly coating the polyurethane slurry on the non-woven leather cloth at the temperature of 80-90 ℃, then, the mixture is solidified in an aqueous solution with the content of dimethylformamide of 15 percent for 10 minutes, the temperature of the aqueous solution is 35 ℃, and after the solidification is finished, the cowhide fiber bass is obtained by washing with water and drying at the temperature of 100 ℃;
B. preparing a dry laminated surface layer: respectively mixing and stirring the surface layer slurry and the bottom layer slurry according to the mixture ratio to obtain the surface layer slurry and the bottom layer slurry, coating the bottom layer slurry on release paper, drying and cooling the release paper, then coating the surface layer slurry, and drying and coiling the release paper to obtain a dry-process laminated surface layer;
C. preparing finished leather: b, attaching the wet base layer in the step A to the dry attaching surface layer in the step B through attaching equipment, drying and cooling the attaching surface layer, and peeling off release paper to obtain finished leather;
D. post-stage treatment: and D, putting the finished leather prepared in the step C into a softener aqueous solution added with 3% and carrying out water kneading for 20 minutes by a grain kneading device, carrying out water temperature of 40 ℃, rolling and drying after water kneading, and carrying out dry kneading and drying, and drying at 60 ℃ to prepare the leather for the ultra-soft cowhide fiber clothes, wherein the thickness of the finished leather is 0.6-0.65mm.
E. Checking, rolling and packaging: the finished product is a roll, the effective width is 137cm, each roll is about 50 meters, and the hard PVC pipe, the plastic bag and the woven bag are sleeved outside the hard PVC pipe.
The results of the tests on the color fastness, the softness and the physical properties of the ultra-soft cowhide fiber artificial leather in the example 1 show that the softness is 9.302 +/-0.113 mm, the results of the ISO 12947-2:1998 Martindale test reach more than 60000 r, and the color fastness to washing and rubbing reaches more than grade 3.
Example 2:
the utility model provides an ultra-soft cow hide fibre synthetic leather, by cow hide fibre non-woven leather cloth, wet process this layer and dry process veneer, each layer materials ratio:
wherein the wet-process Bass layer comprises the following components in parts by weight: 60 parts of soft polyurethane resin, 80 parts of super-soft polyurethane resin, 80 parts of dimethylformamide, 2 parts of foam hole regulator, 1 part of color paste, 15 parts of ramie fiber powder, 10 parts of chitin powder and 0.2 part of dispersing agent
The dry-process laminated surface layer consists of surface layer slurry and a bottom material, and the surface layer slurry is proportioned as follows: 60 parts of dimethylformamide, 3 parts of color chips and 70 parts of soft veneering polyurethane resin; proportioning of bottom layer slurry: 100 parts of dimethylformamide, 3 parts of color chips and 100 parts of soft faced polyurethane resin
The production process of the super-soft cowhide fiber artificial leather comprises the following specific steps:
A. preparing a wet base layer: firstly, mixing dimethylformamide, chitin powder and ramie fiber superfine powder according to a proportion, quickly stirring for 10 minutes at a speed of 200 r/min, then sequentially adding a foam cell regulating auxiliary agent, a waterproof auxiliary agent, super-soft polyurethane resin, a dispersing agent and color paste according to a proportion, stirring for 30 minutes at a speed of 600 r/min for vacuum defoaming to form polyurethane slurry, then soaking the non-woven leather cloth in a water tank containing 1% of anionic surfactant, heating by a ironing roller to remove water in the non-woven leather cloth, uniformly coating the polyurethane slurry on the non-woven leather cloth at the temperature of 80-90 ℃, then, the cow leather fiber is solidified in an aqueous solution with the content of dimethylformamide of 15 percent for 15 minutes, the temperature of the aqueous solution is 40 ℃, and after solidification, the cow leather fiber is washed by water and dried at 120 ℃ to obtain cow leather fiber bass;
B. preparing a dry laminated surface layer: respectively mixing and stirring the surface layer slurry and the bottom layer slurry according to the mixture ratio to obtain the surface layer slurry and the bottom layer slurry, coating the bottom layer slurry on release paper, drying and cooling the release paper, then coating the surface layer slurry, and drying and coiling the release paper to obtain a dry-process laminated surface layer;
C. preparing finished leather: b, attaching the wet base layer in the step A to the dry attaching surface layer in the step B through attaching equipment, drying and cooling the attaching surface layer, and peeling off release paper to obtain finished leather;
D. post-stage treatment: and D, putting the finished leather prepared in the step C into a softener aqueous solution added with 3% and carrying out water kneading for 20 minutes by a grain kneading device, carrying out water temperature of 30-40 ℃, rolling and drying after water kneading, carrying out dry kneading and drying, and drying at 60 ℃ to prepare the leather for the super-soft cowhide fiber clothes, wherein the gram weight of the finished leather is 230-.
E. Checking, rolling and packaging: the finished product is a roll, the effective width is 137cm, each roll is about 50 meters, and the hard PVC pipe, the plastic bag and the woven bag are sleeved outside the hard PVC pipe.
The results of the tests on the color fastness, the softness and the physical properties of the super-soft cowhide fiber artificial leather in the example 2 show that the softness is 9.506 +/-0.153 mm, the results of the ISO 12947-2:1998 Martindale test reach more than 60000 r, and the color fastness to washing and rubbing reaches more than grade 3.
Example 3:
the utility model provides an ultra-soft cow hide fibre synthetic leather, by cow hide fibre non-woven leather cloth, wet process this layer and dry process veneer, each layer materials ratio:
wherein the wet-process Bass layer comprises the following components in parts by weight: 30 parts of soft polyurethane resin, 70 parts of super-soft polyurethane resin, 70 parts of dimethylformamide, 3 parts of foam hole regulator, 2 parts of color paste, 18 parts of ramie fiber powder, 10 parts of chitin powder and 0.2 part of dispersing agent
The dry-process laminated surface layer consists of surface layer slurry and a bottom material, and the surface layer slurry is proportioned as follows: 80 parts of dimethylformamide, 6 parts of color chips and 80 parts of soft faced polyurethane resin; proportioning of bottom layer slurry: 90 parts of dimethyl formamide, 4 parts of color chips and 100 parts of soft faced polyurethane resin
The production process of the super-soft cowhide fiber artificial leather comprises the following specific steps:
A. preparing a wet base layer: firstly, mixing dimethylformamide, chitin powder and ramie fiber superfine powder according to a proportion, quickly stirring for 8 minutes at a speed of 200 r/min, then sequentially adding a foam cell regulating auxiliary agent, a waterproof auxiliary agent, super-soft polyurethane resin, a dispersing agent and color paste according to a proportion, stirring for 30 minutes at a speed of 600 r/min for vacuum defoaming to form polyurethane slurry, then soaking the non-woven leather cloth in a water tank containing 1% of anionic surfactant, heating by a ironing roller to remove water in the non-woven leather cloth, uniformly coating the polyurethane slurry on the non-woven leather cloth at the temperature of 80-100 ℃, then, the mixture is solidified in an aqueous solution with the content of dimethylformamide of 15 percent for 10 minutes, the temperature of the aqueous solution is 30 ℃, and the cowhide fiber bass is obtained after solidification and then is washed by water at 80 ℃;
B. preparing a dry laminated surface layer: respectively mixing and stirring the surface layer slurry and the bottom layer slurry according to the mixture ratio to obtain the surface layer slurry and the bottom layer slurry, coating the bottom layer slurry on release paper, drying and cooling the release paper, then coating the surface layer slurry, and drying and coiling the release paper to obtain a dry-process laminated surface layer;
C. preparing finished leather: b, attaching the wet base layer in the step A to the dry attaching surface layer in the step B through attaching equipment, drying and cooling the attaching surface layer, and peeling off release paper to obtain finished leather;
D. post-stage treatment: and D, putting the finished leather prepared in the step C into a softener aqueous solution added with 3% and carrying out water kneading for 20 minutes by a grain kneading device, carrying out water temperature of 40 ℃, rolling and drying after water kneading, carrying out dry kneading and drying, and drying at 60 ℃ to prepare the super-soft cowhide fiber leather for clothing, wherein the thickness of the finished leather is 0.6-0.65mm, and the unit gram weight is 230-245 g per square meter.
E. Checking, rolling and packaging: the finished product is a roll, the effective width is 137cm, each roll is about 50 meters, and the hard PVC pipe, the plastic bag and the woven bag are sleeved outside the hard PVC pipe.
In this example 3, the antibacterial rate of the finished product of collagen fiber leather reaches above 90%, the result of the ISO 12947-2:1998 martindale test reaches above 60000 r, and the color fastness to washing and rubbing reaches above level 3 when the super-soft cowhide fiber artificial leather is subjected to the tests of antibacterial property, color fastness, softness and physical properties.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A production process of collagen fiber leather for clothing is characterized in that the leather mainly comprises cowhide fiber non-woven leather cloth, a wet method bass layer and a dry method veneer layer; the production process comprises the following steps: splitting, dyeing fibers, producing leather base cloth, grinding and shaping leather, preparing a wet base layer, preparing a dry laminated surface layer, preparing finished leather, processing a rear section, inspecting the finished leather, rolling and packaging; wherein, the fiber opening process comprises the following four steps:
(1) screening materials: selecting blue leather waste before delamination of cow leather, and screening materials with the thickness range of about 3-4 mm;
(2) pretreatment: soaking the blue leather waste in a sodium carbonate solution with the mass concentration of 10% for 8 hours at the temperature of 40 ℃, adding clear water to adjust the pH value to 7 +/-0.5, adding 1% of lipase to continue soaking for 2 hours, then carrying out extrusion cleaning, wherein the extrusion pressure is 10 tons, the extrusion time is 20 minutes, cleaning is carried out for 15 minutes after extrusion, and after cleaning, adding a proper amount of Gemini cation softener and soaking for 2-3 hours;
(3) secondary extrusion degreasing: extruding at 10 tons for 15 minutes, cleaning for 15 minutes after extruding, degreasing the wet blue leather by a degreasing machine, and drying to about 70%;
(4) opening and removing impurities: processing the degreased fragments by an opening and impurity removing machine; the coarse fiber is subjected to twice opening and impurity removal, the coarse fiber is primarily opened into coarse fiber, the coarse fiber is subjected to primary air separation and slag removal, the coarse fiber is further opened into fine fiber, and the fine fiber is subjected to secondary air separation and slag removal to obtain the cowhide fiber with the length of about 15mm and the fineness of 0.1-0.3 mm.
2. The production process of collagen fiber leather for clothing as claimed in claim 1, wherein said fiber dyeing: the dyeing uses low-temperature reactive dye, the water softener is added in the dyeing process, the hardness of water can be effectively reduced, the damage to fibers is reduced, the temperature is controlled to be lower than 80 ℃ in the whole dyeing and drying process, and the collagen component in the fibers is prevented from being damaged by high temperature.
3. The process for producing collagen fiber leather for clothing as claimed in claim 2, wherein the water softener in the fiber dyeing step is sodium hexametaphosphate or chelating dispersant.
4. The production process of the collagen fiber leather for clothing as claimed in claim 1, wherein the leather base cloth production process comprises: 90% of polyester fiber and 20% of nylon fiber are cross-lapped through lapping, a non-woven fabric is manufactured through a spunlace machine, then 95% of cowhide fiber is mixed with 5% of polyester fiber to form a mixed fiber layer, the mixed fiber layer is cross-lapped through the lapping machine, the non-woven fabric is conveyed through a conveyor belt synchronously, and the non-woven fabric are spun-laced through the spunlace machine at high pressure to be combined into a non-woven leather cloth.
5. The production process of the collagen fiber leather for the clothes as claimed in claim 4, wherein the thickness of the non-woven fabric in the leather base fabric production process is 0.2mm, and the gram weight is 50 g/m; the length of the polyester fiber is 5-10mm, and the fineness is 0.3 dtex; the thickness of the finished non-woven leather cloth is 0.45-0.5mm, and the square meter of the gram weight is 140-150 g.
6. The production process of the collagen fiber leather for clothing as claimed in claim 1, wherein the buffing and sizing process comprises the following steps: and (3) grinding the back surface of the non-woven leather cloth by using a leather grinding machine to obtain a hair effect of about 0.1 mm.
7. The production process of collagen fiber leather for clothing as claimed in claim 1, wherein said wet process bass layer preparation process: mixing dimethylformamide, chitin powder and ramie fiber ultrafine powder according to a proportion, quickly stirring for 8 minutes at a speed of 200 r/min, then sequentially adding a foam cell regulating auxiliary agent, a waterproof auxiliary agent, an ultra-soft polyurethane resin, a dispersing agent and color paste according to a proportion, stirring for 30 minutes at a speed of 600 r/min for vacuum defoaming to form polyurethane slurry, then soaking the non-woven leather cloth in a water tank containing 1% of an anionic surfactant, heating by a ironing roller to remove water in the non-woven leather cloth, uniformly coating the polyurethane slurry on the non-woven leather cloth at the temperature of 80-100 ℃, then solidifying for 10 minutes in an aqueous solution containing 15% of dimethylformamide, and drying at the temperature of 30 ℃ by washing at 100 ℃ after the solidification to obtain the cowhide fiber Bass.
8. The production process of collagen fiber leather for clothing as claimed in claim 1, wherein the dry laminated upper layer preparation process comprises: the dry-process laminated surface layer consists of a fabric and a bottom material, wherein the fabric comprises the following components in parts by weight: 80 parts of dimethylformamide, 5 parts of color chips and 80 parts of soft faced polyurethane resin, wherein the base material comprises the following components in parts by weight: 80 parts of dimethylformamide, 5 parts of color chips and 100 parts of soft veneering polyurethane resin, respectively mixing and stirring the components of the fabric and the backing material to obtain surface layer slurry and bottom layer slurry, coating the bottom layer slurry on release paper, drying and cooling the release paper, then coating the surface layer slurry, and drying and reeling to obtain the dry veneering layer.
9. The production process of collagen fiber leather for clothing as claimed in claim 1, wherein the finished leather preparation process comprises: and (3) attaching the wet base layer and the dry surface attaching layer through an attaching device, and peeling the release paper after drying and cooling to obtain the finished leather.
10. The production process of collagen fiber leather for clothing as claimed in claim 1, wherein the finished leather preparation process comprises: putting the finished leather into an aqueous solution added with 3% of a softening agent, carrying out water kneading for 20 minutes by a grain kneading device, carrying out water temperature of 40 ℃, rolling and drying after water kneading, and carrying out dry kneading and drying at 60 ℃ to prepare the finished leather for the super-soft cowhide fiber clothing, wherein the thickness of the finished leather is 0.6-0.65mm, and the gram weight of the finished leather is 230 grams per square meter.
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| CN113068902A (en) * | 2021-03-26 | 2021-07-06 | 莆田市协诚鞋业有限公司 | Manufacturing method of ultralight folding-resistant fiber synthetic leather, synthetic leather obtained by manufacturing method and upper |
| CN113622200A (en) * | 2021-08-10 | 2021-11-09 | 中塑革润新材料科技(北京)有限公司 | Natural fiber reinforced antibacterial, sweat-releasing and moisture-permeable four-side elastic leather |
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