CN106049073A - Preparation method of high-strength anti-puncture synthesized leather bass by performing impregnation treatment on UHMWPE fiber three-dimensional compound nonwoven cloth through water-base resin - Google Patents
Preparation method of high-strength anti-puncture synthesized leather bass by performing impregnation treatment on UHMWPE fiber three-dimensional compound nonwoven cloth through water-base resin Download PDFInfo
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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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0038—Polyolefin fibres
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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
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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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
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- 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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- 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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- 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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- 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
- D06N2209/00—Properties of the materials
- D06N2209/02—Properties of the materials having acoustical properties
- D06N2209/025—Insulating, sound absorber
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- 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
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
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- 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
- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/121—Permeability to gases, adsorption
- D06N2209/123—Breathable
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- D06N2209/00—Properties of the materials
- D06N2209/12—Permeability or impermeability properties
- D06N2209/126—Permeability to liquids, absorption
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- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The invention relates to the field of leather making, and discloses a preparation method of a high-strength anti-puncture synthesized leather bass by performing impregnation treatment on UHMWPE fiber three-dimensional compound nonwoven cloth through water-base resin. The preparation method comprises the following steps: preparation of the UHMWPE fiber three-dimensional compound nonwoven cloth, pre-impregnation, primary microwave drying, ironing, main impregnation, secondary microwave drying, washing, microwave drying for the third time and leather grinding, wherein the UHMWPE fiber three-dimensional compound nonwoven cloth is formed by weaving coarse denier UHMWPE fiber yarns, fine denier UHMWPE short fibers and water-soluble short fibers which serve as raw materials; in the main impregnation process, main impregnation liquid contains graphene-modified aqueous polyurethane resin. The synthesized leather bass disclosed by the invention is higher in strength, modulus, specific strength and specific modulus, high in weather resistance, high temperature resistance, chemical resistance and wear resistance, and extremely high in impact strength, can absorb shock impact and prevent noise, is low in friction coefficient, and is high in moisture permeability and breathability, green, environment-friendly, comfortable and low in cost.
Description
Technical field
The present invention relates to leather sector, particularly relate to the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation.
Background technology
Synthetic leather has been widely applied in every field, and synthetic leather bass is the semi-finished product of synthetic leather, and usually wet impregnation base fabric forms synthetic leather bass.Synthetic leather bass can be brought and do finished product.Difference according to technique can be suede both Niu Bage, common synthetic leather, super fine etc..
Wherein, current Synthetic Leather bass is the most widely used synthetic leather bass.The filmogen of Synthetic Leather bass is polyurethane resin, coating existence that polyurethane resin is formed, poisture-penetrability, poor air permeability, wears the most comfortable shortcoming.And owing to current polyurethane is in preparation process, a large amount of organic solvent, inadequate environmental protection can be used.
About base fabric, at present the scrim material of synthetic leather bass is generally superfine fibre, but the intensity of superfine fibre, modulus, chemical resistance, weatherability, wearability, anti-puncture poor-performing, and coefficient of friction is big, cause service life short, and the performance requirement of some high quality of products cannot be met.
The Chinese patent of Application No. CN200810162448.8 discloses a kind of nano pulp for producing nano synthetic leather base by wet method and wet processing thereof, nano pulp is made up of following component (weight portion): polyurethane resin (as a example by solid content 30%) 100～300 parts, nanometer presoma 1.0～9.0 parts, inhibitor 0.2～10.0 parts, filler 20～90 parts, levelling agent 0.1～0.6 part, diluent 100～600 parts.Wet processing is: coating solidification washing is dried to volume.The present invention is not on the premise of changing synthetic leather industry existing wet process technique, equipment, use special in-situ hybridization technology to be uniformly introduced in polyurethane coating by nano level inorganic particle, thus improve the performances such as the breathable moisture permeability of synthetic leather bass, bacteria mildew-proof and uvioresistant.
Although above-mentioned synthetic leather bass improves the breathable moisture permeability of polyurethane to a certain extent, but is as the progress of science and technology, synthetic leather bass requirement is gradually stepped up by people, still its performance is not ideal enough.And it uses common material as base fabric, in base fabric intensity, modulus, chemical resistance, weatherability, wearability, anti-puncture aspect of performance still price differential, itself and coefficient of friction are big, cause service life short, and cannot meet the performance requirement of some high quality of products.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation.The synthetic leather bass of the present invention has higher intensity, modulus, specific strength, specific modulus, and weatherability, heat-resisting quantity, chemical resistance, wearability are good, and impact strength is high, it is possible to absorbing jerk and antinoise, coefficient of friction is low；Poisture-penetrability, good permeability simultaneously, environmental protection, comfortable, low cost.
The concrete technical scheme of the present invention is: the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation, comprises the following steps:
Microwave drying → the buffing of the preparation of UHMWPE fibre three-dimensional compound nonwoven cloth → pre-impregnation → microwave drying → pressing for the first time → main impregnation → microwave drying → washing for the second time → for the third time；Wherein, described UHMWPE fibre three-dimensional compound nonwoven cloth forms with thick denier UHMWPE fiber yarn, fine-denier UHMWPE chopped fiber, water solublity chopped fiber for material knitting；During described main impregnation, main containing immersion contains Graphene modified aqueous polyurethane resin.
The present invention uses UHMWPE as main raw material(s).UHMWPE and aramid fiber ratio, UHMWPE fiber has higher intensity, modulus, specific strength, specific modulus and sound wave transmission speed.Meanwhile, UHMWPE fiber is more preferable than the weatherability of aramid fiber.It has the advantage that (1) is wear-resistant the most remarkable, mortar wear test shows, than the wear-resisting several times of metal such as general carbon steel and copper, wear-resisting 4 times than nylon；(2) impact strength is high, big 10 times than PA6 and PP；(3) jerk and antinoise can be absorbed；(4) coefficient of friction is the lowest, is little far beyond nylon and other plastics, can self-lubricating;(5) it is difficult to adhere to foreign body, during slip, has the most excellent antisticking characteristic；(6) resistance to chemical attack, and maskable atomic radiation；(7) operating temperature range can be Zi-265 DEG C to+100 DEG C, during low temperature to-195 DEG C, remain to keep good toughness and intensity, will not embrittlement；(8) avirulence, pollution-free, can recirculation recycle, compare with other plastics and have good heat stability and non-absorbency, dimensional accuracy can be kept indeformable；(9) with low cost.
The present invention use UHMWPE fiber and other fibers with the use of, first prepare the UHMWPE fibre three-dimensional compound nonwoven cloth with special construction, it is then passed through special pre-impregnation, main impregnation and stoving process, can make product on the basis of having the above-mentioned advantages such as high intensity, there is moisture-inhibiting, ventilative, environmental protection, the feature such as comfortable.
As preferably, the preparation method of described UHMWPE fibre three-dimensional compound nonwoven cloth comprises the following steps:
Lapping: thick denier UHMWPE fiber yarn is made into plain weave mesh cloth, with water solublity chopped fiber, fine-denier UHMWPE chopped fiber is mixed to get fine-denier and mixes chopped fiber, mixes fine-denier chopped fiber and tiles on plain weave mesh cloth；Fine-denier mixing chopped fiber and the alternate lamination of plain weave mesh cloth, obtain lamination fibre web.
Pre-needling: use fine-denier UHMWPE chopped fiber that lamination fibre web is carried out longitudinal pre-needling, wherein the distance between off-grid plate and stripping web plate is 20-24mm, pre-pricking machine acupuncture traverse is 68-72mm, and pre-needling machine bestock is at 3000-3500 pin/m, 250-300 time/min of pre-needling frequency.
Main acupuncture: use fine-denier UHMWPE chopped fiber, utilize dystopy that thorn is combined acupuncture manipulation and the bottom laminate layer fibre web after pre-needling carries out longitudinally main acupuncture by thorn, coordination；The punch frequency of the most main needing machine is at 800-1100 time/min, main needing machine bestock is 6000-7000 pin/m, last needing machine of having a shave and rate be 900-1100 time/min, weight 2-4mm, density is (double plate) 8000-9000 pin/m, needing machine traverse 30-40mm of having a shave；Prepared density is 0.18-0.2g/cm3UHMWPE fibre three-dimensional compound nonwoven cloth.
The present invention first prepares lamination fibre web, is carrying out pre-needling and main acupuncture, prepares UHMWPE fibre three-dimensional compound nonwoven cloth intensity high, and paracentesis resistance is strong, and can guarantee that again the moisture-inhibiting of fabric, the performance such as ventilative, comfortable simultaneously.
As preferably, described thick denier UHMWPE fiber yarn is 5-6 denier；Described fine-denier UHMWPE chopped fiber is 3-4 denier, long 51mm；Described water solublity chopped fiber is 3-4 denier, long 51mm；Fine-denier UHMWPE chopped fiber is mixed to get fine-denier with water solublity chopped fiber in 4-5:1 ratio and mixes chopped fiber.
As preferably, the structure of described lamination fibre web can be: is paved into one layer of plain weave mesh cloth by one layer of fine-denier mixing chopped fiber, mixed chopped fiber by one layer of fine-denier and two-layer plain weave mesh cloth alternate is paved into, mixes by two-layer fine-denier that chopped fiber is alternate with three layers of plain weave mesh cloth to be paved into.
As preferably, described pre-impregnation process is particularly as follows: impregnate UHMWPE fibre three-dimensional compound nonwoven cloth by roller in its 2.5-3.5 times of quality pre-is containing immersion；Speed is 4-6m/min.
The effect of pre-impregnation is to make fabric first carry out pre-infiltration, improves the intensity of fabric, carries out main impregnation again after pre-impregnation, it is possible to increase the main osmotic effect to fabric Han immersion.
As preferably, described main impregnation process is particularly as follows: contain UHMWPE fibre three-dimensional compound nonwoven cloth by roller extrusion impregnating in immersion the master of its 1.25-1.75 times of quality, and speed is 4-6m/min, and gap of last group roller is 1.3-1.35mm；The master of UHMWPE fibre three-dimensional compound nonwoven cloth excess surface is scraped off containing immersion after dipping.
Impregnation liquid uniformly and is fully divided in the gap being spread to base fabric by the purpose of main impregnation, non-woven fabrics base fabric after pre-impregnation is plated is impregnated into be contained in immersion containing the waterborne polyurethane resin that Graphene is modified, then with scraper, the impregnation liquid that scrim surfaces is unnecessary is carried out the removing of appropriateness through repeatedly extrusion impregnating, it is possible to make master fully penetrate in fabric containing immersion.
As preferably, described pre-include containing immersion: hot water soluble's recoverable version PET 48-50 weight portion, water 48-50 weight portion, water-based thickener 1-2 weight portion, aqueous levelling agent 1-2 part；The described pre-viscosity containing immersion is 400-500mPa S.Wherein hot water soluble's recoverable version PET can be conventional commercially available prod.
As preferably, described master includes containing immersion: the waterborne polyurethane resin 98-102 weight portion of Graphene modification, aqueous color 1-2 weight portion, water-based thickener 0.15-0.3 weight portion, aqueous defoamer 0.5-1 weight portion, aqueous levelling agent 1-3 weight portion；The described master viscosity containing immersion is 200-300mPa S.Main containing in immersion containing the waterborne polyurethane resin that Graphene is modified, this material can keep the original moisture-inhibiting of fabric, ventilative, environmental protection, the feature such as comfortable on the basis of improving fabric mechanical strength, high temperature resistant, ageing-resistant performance as much as possible.Wherein, the waterborne polyurethane resin of Graphene modification can be commercially available or self-control, is preferably waterborne polyurethane resin A type RPU-93-601 of the Graphene modification produced and the waterborne polyurethane resin Type B RPU-93-608 that Graphene is modified.
As preferably, described first time microwave drying, for the second time microwave drying, for the third time microwave drying are subregion ladder and dry, and dry step temperature and are followed successively by 98-102 DEG C, 108-112 DEG C, 118-122 DEG C, 128-132 DEG C.
As preferably, in described pressing technique, temperature is 130-140 DEG C, and speed is 6m/min.
It is compared with the prior art, the invention has the beneficial effects as follows: the synthetic leather bass of the present invention has higher intensity, modulus, specific strength, specific modulus, weatherability, heat-resisting quantity, chemical resistance, wearability are good, and impact strength is high, can absorb jerk and antinoise, coefficient of friction is low；Poisture-penetrability, good permeability simultaneously, environmental protection, comfortable, low cost.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation, comprises the following steps:
1), the preparation of UHMWPE fibre three-dimensional compound nonwoven cloth:
With thick denier UHMWPE fiber yarn, fine-denier UHMWPE chopped fiber, water solublity chopped fiber as raw material.Described thick denier UHMWPE fiber yarn is 5.5 denier；Described fine-denier UHMWPE chopped fiber is 3.5 denier, long 51mm；Described water solublity chopped fiber is 3.5 denier, long 51mm；Fine-denier UHMWPE chopped fiber is mixed to get fine-denier with water solublity chopped fiber in 4.5:1 ratio and mixes chopped fiber.
Lapping: thick denier UHMWPE fiber yarn is made into plain weave mesh cloth, with water solublity chopped fiber, fine-denier UHMWPE chopped fiber is mixed to get fine-denier and mixes chopped fiber, mixes fine-denier chopped fiber and tiles on plain weave mesh cloth；Fine-denier mixing chopped fiber and the alternate lamination of plain weave mesh cloth, obtain lamination fibre web.The structure of described lamination fibre web is for being paved into one layer of plain weave mesh cloth by one layer of fine-denier mixing chopped fiber.
Pre-needling: using fine-denier UHMWPE chopped fiber that lamination fibre web carries out longitudinal pre-needling, wherein the distance between off-grid plate and stripping web plate is 20mm, and pre-pricking machine acupuncture traverse is 70mm, and pre-needling machine bestock is at 3250 pins/m, 275 times/min of pre-needling frequency.
Main acupuncture: use fine-denier UHMWPE chopped fiber, utilize dystopy that thorn is combined acupuncture manipulation and the bottom laminate layer fibre web after pre-needling carries out longitudinally main acupuncture by thorn, coordination；The punch frequency of the most main needing machine is 6500 pins/m in 950 times/min, main needing machine bestock, last needing machine of having a shave and rate be 1000 times/min, weight 3mm, density is (double plate) 8500 pins/m, needing machine traverse 35mm of having a shave；Prepared density is 0.18g/cm3UHMWPE fibre three-dimensional compound nonwoven cloth.
2), impregnation in advance: UHMWPE fibre three-dimensional compound nonwoven cloth is impregnated by roller in its 3 times of quality pre-is containing immersion；Speed is 5m/min.
Described pre-include containing immersion: hot water soluble's recoverable version PET water solution 49 weight portion, water 49 weight portion, water-based thickener (RM-4456) 1 weight portion, aqueous levelling agent (LA-91-120) 1 part；The described pre-viscosity containing immersion is 400-500mPa S.
3), microwave drying for the first time: use subregion ladder to dry, dry step temperature and be followed successively by 100 DEG C, 110 DEG C, 120 DEG C, 130 DEG C.
4), plate: temperature is 135 DEG C, and speed is 6m/min.
5), main impregnation: being contained by roller extrusion impregnating in immersion the master of its 1.5 times of quality by UHMWPE fibre three-dimensional compound nonwoven cloth, speed is 5m/min, and gap of last group roller is 1.3mm；The master of UHMWPE fibre three-dimensional compound nonwoven cloth excess surface is scraped off containing immersion after dipping.
Described master includes containing immersion: waterborne polyurethane resin 100 weight portion of Graphene modification, aqueous color (PERMUTEX LD-5900/SERIES) 1.5 weight portions, water-based thickener (RM-4456) 0.2 weight portion, aqueous defoamer 0.75 weight portion, aqueous levelling agent (LA-91-120) 2 weight portion；The described master viscosity containing immersion is 200-300mPa S.
6), microwave drying for the second time: use subregion ladder to dry, dry step temperature and be followed successively by 100 DEG C, 110 DEG C, 120 DEG C, 130 DEG C.
7), washing.
8), microwave drying for the third time: use subregion ladder to dry, dry step temperature and be followed successively by 100 DEG C, 110 DEG C, 120 DEG C, 130 DEG C.
9), buffing.
Embodiment 2
The preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation, comprises the following steps:
1), the preparation of UHMWPE fibre three-dimensional compound nonwoven cloth:
With thick denier UHMWPE fiber yarn, fine-denier UHMWPE chopped fiber, water solublity chopped fiber as raw material.Described thick denier UHMWPE fiber yarn is 5 denier；Described fine-denier UHMWPE chopped fiber is 3 denier, long 51mm；Described water solublity chopped fiber is 3 denier, long 51mm；Fine-denier UHMWPE chopped fiber is mixed to get fine-denier with water solublity chopped fiber in 4:1 ratio and mixes chopped fiber.
Lapping: thick denier UHMWPE fiber yarn is made into plain weave mesh cloth, with water solublity chopped fiber, fine-denier UHMWPE chopped fiber is mixed to get fine-denier and mixes chopped fiber, mixes fine-denier chopped fiber and tiles on plain weave mesh cloth；Fine-denier mixing chopped fiber and the alternate lamination of plain weave mesh cloth, obtain lamination fibre web.The structure of described lamination fibre web is for by one layer of fine-denier mixing chopped fiber with two-layer plain weave mesh cloth is alternate is paved into.
Pre-needling: using fine-denier UHMWPE chopped fiber that lamination fibre web carries out longitudinal pre-needling, wherein the distance between off-grid plate and stripping web plate is 22mm, and pre-pricking machine acupuncture traverse is 68mm, and pre-needling machine bestock is at 3000 pins/m, 250 times/min of pre-needling frequency.
Main acupuncture: use fine-denier UHMWPE chopped fiber, utilize dystopy that thorn is combined acupuncture manipulation and the bottom laminate layer fibre web after pre-needling carries out longitudinally main acupuncture by thorn, coordination；The punch frequency of the most main needing machine is 6000 pins/m in 800 times/min, main needing machine bestock, last needing machine of having a shave and rate be 900 times/min, weight 2mm, density is (double plate) 8000 pins/m, needing machine traverse 30mm of having a shave；Prepared density is 0.19g/cm3UHMWPE fibre three-dimensional compound nonwoven cloth.
2), impregnation in advance: UHMWPE fibre three-dimensional compound nonwoven cloth is impregnated by roller in its 2.5 times of quality pre-is containing immersion；Speed is 4m/min.
Described pre-include containing immersion: hot water soluble's recoverable version PET water solution 48 weight portion, water 48 weight portion, water-based thickener (RM-4456) 2 weight portion, aqueous levelling agent (LA-91-120) 2 parts；The described pre-viscosity containing immersion is 400-500mPa S.
3), microwave drying for the first time: use subregion ladder to dry, dry step temperature and be followed successively by 98 DEG C, 108 DEG C, 118 DEG C, 128 DEG C.
4), plate: temperature is 130 DEG C, and speed is 6m/min.
5), main impregnation: being contained by roller extrusion impregnating in immersion the master of its 1.25 times of quality by UHMWPE fibre three-dimensional compound nonwoven cloth, speed is 4m/min, and gap of last group roller is 1.35mm；The master of UHMWPE fibre three-dimensional compound nonwoven cloth excess surface is scraped off containing immersion after dipping.
Described master includes containing immersion: waterborne polyurethane resin 98 weight portion of Graphene modification, aqueous color (PERMUTEX LD-5900/SERIES) 1 weight portion, water-based thickener (RM-4456) 0.15 weight portion, aqueous defoamer 0.5 weight portion, aqueous levelling agent (LA-91-120) 1 weight portion；The described master viscosity containing immersion is 200-300mPa S.
6), microwave drying for the second time: use subregion ladder to dry, dry step temperature and be followed successively by 98 DEG C, 108 DEG C, 118 DEG C, 128 DEG C.
7), washing.
8), microwave drying for the third time: use subregion ladder to dry, dry step temperature and be followed successively by 98 DEG C, 108 DEG C, 118 DEG C, 128 DEG C.
9), buffing.
Embodiment 3
The preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation, comprises the following steps:
1), the preparation of UHMWPE fibre three-dimensional compound nonwoven cloth:
With thick denier UHMWPE fiber yarn, fine-denier UHMWPE chopped fiber, water solublity chopped fiber as raw material.Described thick denier UHMWPE fiber yarn is 6 denier；Described fine-denier UHMWPE chopped fiber is 4 denier, long 51mm；Described water solublity chopped fiber is 4 denier, long 51mm；Fine-denier UHMWPE chopped fiber is mixed to get fine-denier with water solublity chopped fiber in 5:1 ratio and mixes chopped fiber.
Lapping: thick denier UHMWPE fiber yarn is made into plain weave mesh cloth, with water solublity chopped fiber, fine-denier UHMWPE chopped fiber is mixed to get fine-denier and mixes chopped fiber, mixes fine-denier chopped fiber and tiles on plain weave mesh cloth；Fine-denier mixing chopped fiber and the alternate lamination of plain weave mesh cloth, obtain lamination fibre web.The structure of described lamination fibre web is for being paved into by two-layer fine-denier mixing chopped fiber is alternate with three layers of plain weave mesh cloth.
Pre-needling: using fine-denier UHMWPE chopped fiber that lamination fibre web carries out longitudinal pre-needling, wherein the distance between off-grid plate and stripping web plate is 24mm, and pre-pricking machine acupuncture traverse is 72mm, and pre-needling machine bestock is at 3500 pins/m, 300 times/min of pre-needling frequency.
Main acupuncture: use fine-denier UHMWPE chopped fiber, utilize dystopy that thorn is combined acupuncture manipulation and the bottom laminate layer fibre web after pre-needling carries out longitudinally main acupuncture by thorn, coordination；The punch frequency of the most main needing machine is 7000 pins/m in 1100 times/min, main needing machine bestock, last needing machine of having a shave and rate be 1100 times/min, weight 4mm, density is (double plate) 9000 pins/m, needing machine traverse 40mm of having a shave；Prepared density is 0.2g/cm3UHMWPE fibre three-dimensional compound nonwoven cloth.
2), impregnation in advance: UHMWPE fibre three-dimensional compound nonwoven cloth is impregnated by roller in its 3.5 times of quality pre-is containing immersion；Speed is 6m/min.
Described pre-include containing immersion: hot water soluble's recoverable version PET water solution 50 weight portion, water 50 weight portion, water-based thickener (RM-4456) 1 weight portion, aqueous levelling agent (LA-91-120) 1 part；The described pre-viscosity containing immersion is 400-500mPa S.
3), microwave drying for the first time: use subregion ladder to dry, dry step temperature and be followed successively by 102 DEG C, 112 DEG C, 122 DEG C, 132 DEG C.
4), plate: temperature is 140 DEG C, and speed is 6m/min.
5), main impregnation: being contained by roller extrusion impregnating in immersion the master of its 1.75 times of quality by UHMWPE fibre three-dimensional compound nonwoven cloth, speed is 6m/min, and gap of last group roller is 1.35mm；The master of UHMWPE fibre three-dimensional compound nonwoven cloth excess surface is scraped off containing immersion after dipping.
Described master includes containing immersion: waterborne polyurethane resin A type (RPU-93-601) 50 weight portion of Graphene modification, waterborne polyurethane resin Type B (RPU-93-608) 50 weight portion of Graphene modification, aqueous color (PERMUTEX LD-5900/SERIES) 2 weight portions, water-based thickener (RM-4456) 0.3 weight portion, aqueous defoamer 1 weight portion, aqueous levelling agent (LA-91-120) 3 weight portion；The described master viscosity containing immersion is 200-300mPa S.
6), microwave drying for the second time: use subregion ladder to dry, dry step temperature and be followed successively by 102 DEG C, 112 DEG C, 122 DEG C, 132 DEG C.
7), washing.
8), microwave drying for the third time: use subregion ladder to dry, dry step temperature and be followed successively by 102 DEG C, 112 DEG C, 122 DEG C, 132 DEG C.
9), buffing.
The product that the present invention prepares, its punctured resistance and existing like product can improve about 40-60%, and heat-resisting quantity can improve 20-30%, and wearability can improve 30-40%.
Raw materials used, equipment in the present invention, unless otherwise noted, is the conventional raw material of this area, equipment；Method therefor in the present invention, unless otherwise noted, is the conventional method of this area.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every any simple modification, change and equivalent transformation made above example according to the technology of the present invention essence, all still falls within the protection domain of technical solution of the present invention.
Claims (10)
1. the preparation method of the high-strength anti-stab synthetic leather bass that a UHMWPE fibre three-dimensional compound nonwoven cloth processes through water-base resin impregnation, it is characterised in that comprise the following steps:
Microwave drying → the buffing of the preparation of UHMWPE fibre three-dimensional compound nonwoven cloth → pre-impregnation → microwave drying → pressing for the first time → main impregnation → microwave drying → washing for the second time → for the third time；Wherein, described UHMWPE fibre three-dimensional compound nonwoven cloth forms with thick denier UHMWPE fiber yarn, fine-denier UHMWPE chopped fiber, water solublity chopped fiber for material knitting；During described main impregnation, main containing immersion contains Graphene modified aqueous polyurethane resin.
2. the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth as claimed in claim 1 processes through water-base resin impregnation, it is characterised in that the preparation method of described UHMWPE fibre three-dimensional compound nonwoven cloth comprises the following steps:
Lapping: thick denier UHMWPE fiber yarn is made into plain weave mesh cloth, with water solublity chopped fiber, fine-denier UHMWPE chopped fiber is mixed to get fine-denier and mixes chopped fiber, mixes fine-denier chopped fiber and tiles on plain weave mesh cloth；Fine-denier mixing chopped fiber and the alternate lamination of plain weave mesh cloth, obtain lamination fibre web；
Pre-needling: use fine-denier UHMWPE chopped fiber that lamination fibre web is carried out longitudinal pre-needling, wherein the distance between off-grid plate and stripping web plate is 20-24mm, pre-pricking machine acupuncture traverse is 68-72mm, and pre-needling machine bestock is at 3000-3500 pin/m, 250-300 time/min of pre-needling frequency；
Main acupuncture: use fine-denier UHMWPE chopped fiber, utilize dystopy that thorn is combined acupuncture manipulation and the bottom laminate layer fibre web after pre-needling carries out longitudinally main acupuncture by thorn, coordination；The punch frequency of the most main needing machine is at 800-1100 time/min, main needing machine bestock is 6000-7000 pin/m, last needing machine of having a shave and rate be 900-1100 time/min, weight 2-4mm, density is (double plate) 8000-9000 pin/m, needing machine traverse 30-40mm of having a shave；Prepared density is 0.18-0.2g/cm3UHMWPE fibre three-dimensional compound nonwoven cloth.
3. the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth as claimed in claim 1 or 2 processes through water-base resin impregnation, it is characterised in that described thick denier UHMWPE fiber yarn is 5-6 denier；Described fine-denier UHMWPE chopped fiber is 3-4 denier, long 51mm；Described water solublity chopped fiber is 3-4 denier, long 51mm；Fine-denier UHMWPE chopped fiber is mixed to get fine-denier with water solublity chopped fiber in 4-5:1 ratio and mixes chopped fiber.
4. the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth as claimed in claim 2 processes through water-base resin impregnation, it is characterized in that, the structure of described lamination fibre web can be: is paved into one layer of plain weave mesh cloth by one layer of fine-denier mixing chopped fiber, mixed chopped fiber by one layer of fine-denier and two-layer plain weave mesh cloth alternate is paved into, mixes by two-layer fine-denier that chopped fiber is alternate with three layers of plain weave mesh cloth to be paved into.
5. the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth as claimed in claim 1 processes through water-base resin impregnation, it is characterized in that, described pre-impregnation process is particularly as follows: impregnate UHMWPE fibre three-dimensional compound nonwoven cloth by roller in its 2.5-3.5 times of quality pre-is containing immersion；Speed is 4-6m/min.
6. the preparation method of the high-strength anti-stab synthetic leather bass that the UHMWPE fibre three-dimensional compound nonwoven cloth as described in claim 1 or 5 processes through water-base resin impregnation, it is characterized in that, described main impregnation process is particularly as follows: contain UHMWPE fibre three-dimensional compound nonwoven cloth in immersion by roller extrusion impregnating the master of its 1.25-1.75 times of quality, speed is 4-6m/min, and the gap of last group roller is 1.3-1.35mm；The master of UHMWPE fibre three-dimensional compound nonwoven cloth excess surface is scraped off containing immersion after dipping.
7. the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth as claimed in claim 5 processes through water-base resin impregnation, it is characterized in that, described pre-include containing immersion: hot water soluble's recoverable version PET water solution 48-50 weight portion, water 48-50 weight portion, water-based thickener 1-2 weight portion, aqueous levelling agent 1-2 part；The described pre-viscosity containing immersion is 400-500mPa S.
8. the preparation method of the high-strength anti-stab synthetic leather bass that UHMWPE fibre three-dimensional compound nonwoven cloth as claimed in claim 6 processes through water-base resin impregnation, it is characterized in that, described master includes containing immersion: the waterborne polyurethane resin 98-102 weight portion of Graphene modification, aqueous color 1-2 weight portion, water-based thickener 0.15-0.3 weight portion, aqueous defoamer 0.5-1 weight portion, aqueous levelling agent 1-3 weight portion；The described master viscosity containing immersion is 200-300mPa S.
9. the preparation method of the high-strength anti-stab synthetic leather bass that the UHMWPE fibre three-dimensional compound nonwoven cloth as described in claim 1 or 5 processes through water-base resin impregnation, it is characterized in that, described first time microwave drying, for the second time microwave drying, for the third time microwave drying are subregion ladder and dry, dry step temperature and be followed successively by 98-102 DEG C, 108-112 DEG C, 118-122 DEG C, 128-132 DEG C.
10. the preparation method of the high-strength anti-stab synthetic leather bass that the UHMWPE fibre three-dimensional compound nonwoven cloth as described in claim 1 or 5 processes through water-base resin impregnation, it is characterised in that in described pressing technique, temperature is 130-140 DEG C, and speed is 6m/min.
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