CN108068426A - A kind of production technology of high-strength cow nonwoven skin cloth - Google Patents

A kind of production technology of high-strength cow nonwoven skin cloth Download PDF

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Publication number
CN108068426A
CN108068426A CN201711434475.1A CN201711434475A CN108068426A CN 108068426 A CN108068426 A CN 108068426A CN 201711434475 A CN201711434475 A CN 201711434475A CN 108068426 A CN108068426 A CN 108068426A
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China
Prior art keywords
skin cloth
hide
nonwoven skin
production technology
lapping
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CN201711434475.1A
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Chinese (zh)
Inventor
谢坤
张加远
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Fuzhou Jiada Textile Technology Co Ltd
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Fuzhou Jiada Textile Technology Co Ltd
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Priority to CN201711434475.1A priority Critical patent/CN108068426A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B2037/1072—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using a fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention belongs to textile technology fields, and in particular to 20% polyester fiber is mixed 80% nylon fibre, through lapping machine cross lapping, non-woven fabrics is made by spun-laced machine by the production technology of high-strength cow nonwoven skin cloth；93% kraft fibers are mixed into 7% polyester fiber and form mixed fiber layer, through lapping machine cross lapping, manufactured non-woven fabrics is placed on communicated band below mixed fiber layer while lapping to transport, together by spun-laced machine high-pressure water-jet, ox-hide nonwoven skin cloth is made in the two；Manufactured ox-hide nonwoven skin cloth is crossed into baking oven sizing, and carry out surface pound it is flat pound light, after hot-rolling；One layer of PU is finally set on the surface.The production technology of high-strength cow nonwoven skin cloth provided by the invention, the product tearing strength produced is high, surface abrasion resistance and scratch resistance height.Simultaneously the offcut of leather is made full use of to turn waste into wealth, not only reduce production cost, and also reduce the pollution to environment.

Description

A kind of production technology of high-strength cow nonwoven skin cloth
Technical field
The invention belongs to textile technology fields, and in particular to a kind of production technology of high-strength cow nonwoven skin cloth.
Background technology
The application of leather is from initial clothes, shoes and hats, luggage, on furniture finally, automotive trim and then Sports equipment articles for use, the application field of leather is almost related to the every aspect of people's life, such as packaging, ticket-holder, sand Hair, car cushion hair and household interior trim etc., up to 2,000,000 tons or more every year of the usage amount of leather.But the raw hide of corium comes Source is limited after all, and the yield of raw hide can not much meet the needs of domestic leather, so domestic leather raw hide still relies on substantially Import, for annual import foreign countries raw hide amount at 93.7 ten thousand tons or more, the amount of money is up to 18.21 hundred million dollars or more according to statistics.Corium produces Process is mainly Shui Chang and the dry main production process of field twice, and wherein A water field includes：Salted, chamfered edge cuts meat, defeathering, deliming, ferment Solution, pickling, tanning, water squeezing is peeled, dyeing and fat-liquoring, skin dry 10 procedures, and B, which does field, to be included：Rewetting falls soft, mill skin, surface It covers with paint, lacquer, colour wash, etc., is embossed 5 procedures.So corium production process is more, and since uneven and every the quality of raw hide of raw hide size is poor It is different larger, thus corium can not extensive consecutive production, production yields is low, and energy consumption is big, and the corium quality produced is not First, size differs etc..Furthermore due to being limited be subject to leather size, the utilization rate of actual leather is low, cut not Conveniently, it is relatively more prominent the problems such as low production efficiency etc..It is realized substantially by spraying process additionally due to corium is covered with paint, lacquer, colour wash, etc., table and resin knot Conjunction property is not high, and scratch resistance is poor, often occurs the problems such as surface abrasion, scratch after the product use produced.
In addition the tanning agent used during existing traditional corium water field pickling, tanning production is the heavy metals such as Cr VI, is endangered significantly The health of evil direct labor；Base stock of the organic solvent type resins as production and processing is mostly used when covering with paint, lacquer, colour wash, etc. and producing, it should Organic solvent is mostly dimethylformamide DMF, toluene TOL classes, and such solvent all has certain toxicity, harm to the human body Greatly, there is intense irritation to human respiratory tract, Long Term Contact can make one liver, kidney comes to harm.So traditional corium is not only in life Factory's surrounding enviroment are destroyed during production, the health of direct labor is endangered, and heavy metal, You Jirong is also had in corium product Agent remains, and home life environment is polluted after daily necessities are made, is damaged to people’s lives health.
The content of the invention
The object of the present invention is to provide a kind of production technologies of high-strength cow nonwoven skin cloth, can effectively recycle ox Hide offal, health environment-friendly, while the skin cloth tearing strength produced is high, surface abrasion resistance scratch resistance is high.
The technical solution adopted by the present invention is：A kind of production technology of high-strength cow nonwoven skin cloth, comprises the steps of：
(1), 20% polyester fiber is mixed to 80% nylon fibre, through lapping machine cross lapping, passes through spun lacing mechanism Into non-woven fabrics；
(2), 93% kraft fibers are mixed into 7% polyester fiber and forms mixed fiber layer, through lapping machine cross lapping, paving Non-woven fabrics made of step (1) is placed on following communicated band transport while net, together by spun-laced machine high-pressure water-jet, by the two Ox-hide nonwoven skin cloth is made；
(3), ox-hide nonwoven skin cloth made of step (2) is crossed into baking oven sizing, and carries out surface and pound flat to pound light, Zai Guore Roller；One layer of PU is finally set on the surface.
Further preferably, in the step (2) non-woven fabrics and mixed fiber layer before through spun-laced machine between Water-base polyurethane material is added in, through sending warm equipment so that water-base polyurethane material is dried, is blown as circulative convection blowing side Formula send the temperature of temperature to be less than lower floor's temperature for upper strata temperature.
Further preferably, the thickness of the non-woven fabrics in the step (1) is 0.2-0.6mm, nylon fibre length 5- 10mm, single fiber fineness are 0.2-0.4dtex, the polyester fiber length 5-10mm in step (1) and step (2), and single fiber fineness is 0.2-0.4dtex。
Further preferably, the thickness of the ox-hide nonwoven skin cloth in the step (2) is 0.7-1.5mm,.
Further preferably, in the step (3) polyvinyl chloride not foaming layer is added in when surface sets one layer of PU.
Further preferably, the kraft fibers in the step (2) are made of following steps：
(a) ox-hide leftover pieces are screened, color separation, impurity elimination；
(b) with alkali, dipping：Ox-hide leftover pieces after step (a) is impregnated are put into the water containing HY-PA bleeding agents, NaOH It is impregnated in solution, then through rolling extrusion, skiving, makes hide fiber uniform after cycling several times；
(c) tannin extract tanning 30 minutes is added in, agitated and extruding makes cladding infiltration uniform；
(d) the ox-hide leftover pieces that step (c) obtains are subjected to hammering repeatedly and form coma, coma shredding is combed simultaneously It is dried.
The beneficial effects of the invention are as follows：The production technology of high-strength cow nonwoven skin cloth provided by the invention, passes through ox-hide The combination of fiber and polyester fiber and nylon fibre, the product tearing strength produced is high, surface abrasion resistance and scratch resistance height.Together When the offcut of leather is made full use of to turn waste into wealth, not only reduce production cost, and also reduce the dirt to environment Dye.
Specific embodiment
Below by specific embodiment, the invention will be further described.
A kind of production technology of high-strength cow nonwoven skin cloth, comprises the steps of：
(1), 20% polyester fiber is mixed to 80% nylon fibre, nylon fibre length 5-10mm, single fiber fineness is 0.2-0.4dtex, polyester fiber length 5-10mm, single fiber fineness are 0.2-0.4dtex, through lapping machine cross lapping, pass through water Non-woven fabrics is made in thorn machine；
(2), by 93% kraft fibers mix 7% polyester fiber formed mixed fiber layer, polyester fiber length 5-10mm, Single fiber fineness is 0.2-0.4dtex, and through lapping machine cross lapping, non-woven fabrics made of step (1) is placed on mixing while lapping Communicated band transport, together by spun-laced machine high-pressure water-jet, ox-hide nonwoven skin cloth is made by the two below fibrous layer；
(3), ox-hide nonwoven skin cloth made of step (2) is crossed into baking oven sizing, and carry out surface pound it is flat pound light, improve ox-hide Nonwoven skin cloth surface smoothness, after hot-rolling；One layer of PU is finally set on the surface.
Non-woven fabrics adds in aqueous polyurethane material between with mixed fiber layer before through spun-laced machine in step (2) Material through sending warm equipment so that water-base polyurethane material is dried, blows and dries mode for circulative convection, the temperature for sending temperature is upper Layer temperature is less than lower floor's temperature.It adds in so that aqueous polyurethane ensures the associativity between mixed fiber layer and non-woven fabrics.Meanwhile Using the air-supply and send warm mode that can make water-base polyurethane material drying from inner by outer, solution lamination, rate of reducing the number of rejects and seconds.
Polyvinyl chloride not foaming layer is added in when surface sets one layer of PU in step (3), adds in polyvinyl chloride not foaming layer The wear-resisting scratch resistance of leather surface can be enhanced.
Wherein, the kraft fibers in step of the invention (2) are made of following steps：
(a) ox-hide leftover pieces are screened, color separation, impurity elimination；
(b) with alkali, dipping：Ox-hide leftover pieces after step (a) is impregnated are put into the water containing HY-PA bleeding agents, NaOH It is impregnated in solution, then through rolling extrusion, skiving, makes hide fiber uniform after cycling several times；
(c) tannin extract tanning 30 minutes is added in, agitated and extruding makes cladding infiltration uniform；
(d) the ox-hide leftover pieces that step (c) obtains are subjected to hammering repeatedly and form coma, coma shredding is combed simultaneously It is dried.
The thickness of ox-hide nonwoven skin cloth in step (2) is 0.7-1.5mm, and the thickness of the non-woven fabrics in step (1) is 0.2-0.6mm.Ox-hide nonwoven skin cloth is using thickness 1.0mm as standard, grammes per square metre 330g, and wherein kraft fibers weight reaches 270g, brocade Synthetic fibre and terylene weight add up to 60g, and PU layers of weight is no more than 150g
The above only expresses the preferred embodiment of the present invention, and description is more specific and in detail, but can not be because This and be interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for those of ordinary skill in the art, On the premise of not departing from present inventive concept, several deformations can also be made, improves and substitutes, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (6)

1. a kind of production technology of high-strength cow nonwoven skin cloth, which is characterized in that comprise the following steps：
(1), 20% polyester fiber is mixed to 80% nylon fibre, through lapping machine cross lapping, nothing is made by spun-laced machine Woven fabric；
(2), 93% kraft fibers are mixed into 7% polyester fiber and forms mixed fiber layer, through lapping machine cross lapping, lapping Non-woven fabrics made of step (1) is placed on communicated band below mixed fiber layer simultaneously to transport, passes through spun-laced machine high pressure water together Thorn, ox-hide nonwoven skin cloth is made by the two；
(3), ox-hide nonwoven skin cloth made of step (2) is crossed into baking oven sizing, and carry out surface pound it is flat pound light, after hot-rolling；Most One layer of PU is set on the surface afterwards.
A kind of 2. production technology of high-strength cow nonwoven skin cloth according to claim 1, which is characterized in that the step (2) non-woven fabrics adds in water-base polyurethane material between with mixed fiber layer before through spun-laced machine in, through sending temperature Equipment causes water-base polyurethane material to dry, and blows as circulative convection blowing mode, the temperature for sending temperature is under upper strata temperature is less than Layer temperature.
A kind of 3. production technology of high-strength cow nonwoven skin cloth according to claim 1, which is characterized in that the step (1) thickness of the non-woven fabrics in be 0.2-0.6mm, nylon fibre length 5-10mm, single fiber fineness be 0.2-0.4dtex, step (1) the polyester fiber length 5-10mm and in step (2), single fiber fineness are 0.2-0.4dtex.
A kind of 4. production technology of high-strength cow nonwoven skin cloth according to claim 1, which is characterized in that the step (2) thickness of the ox-hide nonwoven skin cloth in is 0.7-1.5mm,.
A kind of 5. production technology of high-strength cow nonwoven skin cloth according to claim 1, which is characterized in that the step (3) in polyvinyl chloride not foaming layer is added in when surface sets one layer of PU.
A kind of 6. production technology of high-strength cow nonwoven skin cloth according to claim 1, which is characterized in that the step (2) kraft fibers in are made of following steps：
(a) ox-hide leftover pieces are screened, color separation, impurity elimination；
(b) with alkali, dipping：Ox-hide leftover pieces after step (a) is impregnated are put into the aqueous solution containing HY-PA bleeding agents, NaOH Middle immersion, then through rolling extrusion, skiving, make hide fiber uniform after cycling several times；
(c) tannin extract tanning 30 minutes is added in, agitated and extruding makes cladding infiltration uniform；
(d) the ox-hide leftover pieces that step (c) obtains are subjected to hammering repeatedly and form coma, coma shredding is combed and is carried out Drying.
CN201711434475.1A 2017-12-26 2017-12-26 A kind of production technology of high-strength cow nonwoven skin cloth Pending CN108068426A (en)

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CN109629112A (en) * 2018-12-14 2019-04-16 广东职业技术学院 A kind of collagen/monkey grass composite nonwoven material and preparation method thereof
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CN113561619A (en) * 2021-09-07 2021-10-29 福建亿宏新材料科技有限公司 Cow leather fiber composite base material production line and base material production process thereof

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