CN103526562A - Non-woven fabric polyurethane sports leisure shoe leather and preparation method thereof - Google Patents
Non-woven fabric polyurethane sports leisure shoe leather and preparation method thereof Download PDFInfo
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Abstract
The invention discloses non-woven fabric polyurethane sports leisure shoe leather and a preparation method thereof. The non-woven fabric polyurethane sports leisure shoe leather is characterized by being prepared by the steps of: soaking a non-woven fabric in polyurethane soaking slurry, coating polyurethane coating slurry on the soaked non-woven fabric, and finally carrying out dry process treatment and tanning treatment sequentially. The non-woven fabric polyurethane sports leisure shoe leather has excellent physical and mechanical properties such as strong tearing property, strong stripping property and strong bursting property, and has pliable and full hand feeling, good rebound resilience and good true leather effect.
Description
Technical field
The present invention relates to a kind of nonwoven fabric Synthetic Leather and preparation method thereof.
Background technology
Synthetic Leather, is called for short PU synthetic leather, is a kind ofly to take various base cloths as base material, applies polyurethane resin and make it have the real leather intimating synthetic leather of various decorative patterns, pattern, function and feel on base material.At present, PU synthetic leather is widely used in every field.At sports play shoes, use leather field, the sports play shoes leather of domestic production mostly is plain edition footwear leather, its physical and mechanical properties is not high, ageing resistance, yellowing resistance, ABRASION RESISTANCE are all undesirable, stressed rear restorability is poor, easily expose base cloth, cause in feel soft and fullly not, feel is stiff, kishke feel weak effect.
Summary of the invention
The present invention is for avoiding the existing weak point of above-mentioned prior art, provide a kind of soft plentiful, resilience is good, kishke feel is strong, peel off, tear, bursting strength is high, the functional synthetic leather with characteristics such as resistance to xanthochromia, anti-aging, hydrolysis, to guarantee that vamp is difficult for peeling, fades and wear-resistant, also have simultaneously slim and graceful, comfortableness is good, can fully meet the feature of motion, leisure demand, can be widely used in men and women's sport footwear, playshoes etc., meet the development trend in current sports play shoes market.
Technical solution problem of the present invention, adopts following technical scheme:
Nonwoven fabric polyurethane sport playshoes leather of the present invention, its feature is: described nonwoven fabric polyurethane sport playshoes leather is after nonwoven fabric is flooded by polyurethane impregnated slurry, apply again polyurethane coating slurry, finally through dry process, process and tanning processing acquisition successively again;
The fiber composition mass ratio of described nonwoven fabric is: polyamide fibre: terylene=0-50:100-50;
Each raw material of described polyurethane impregnated slurry by the formation of mass fraction is:
Each raw material of described polyurethane coating slurry by the formation of mass fraction is:
The preparation method of nonwoven fabric polyurethane sport playshoes leather of the present invention, its feature is also to carry out as follows:
Step (1), preparation polyurethane impregnated slurry
In wet laid furnishes still, add successively dimethyl formamide, bleeding agent BYK-7018 and water-sprinkling agent F-200S, and stir at normal temperatures and pressures 10-30 minute, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238 and mill base PU black, and then stir at normal temperatures and pressures 20-40 minute, finally under the condition of normal temperature, vacuum≤-0.75bar, stir 30-60 minute, make polyurethane impregnated slurry;
Step (2), preparation polyurethane coating slurry
In wet laid furnishes still, add successively dimethyl formamide 100-300 part, water-sprinkling agent SF-330-0.8 part, pass conditioning agent HY-6071-10 part, the black 0-10 part of defoamer T-5020-0.5 part and mill base PU, under normal temperature and pressure, stir 10-30 minute, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-5080RH50-200 part, polyester polyethers copolymerization polyurethane resin SW-5060RH50-150 part, polyester polyethers copolymerization polyurethane resin SW-4040RHA50-150 part and poly-carbon type polyurethane resin SW-410PC0-100 part, and then stir at normal temperatures and pressures 20-40 minute, finally under the condition of normal-temperature vacuum degree≤-0.75bar, stir 30-60 minute, obtain polyurethane coating slurry,
Step (3), prepare wet-method synthetic leather semi-finished product
The prepared polyurethane impregnated slurry of step (1) be impregnated on nonwoven fabric by impregnation technology, again the prepared polyurethane coating slurry of step (2) is coated on through impregnated nonwoven fabric positive, then the dimethyl formamide solution that is placed in mass concentration and is 20-30% solidifies, through 30-60 ℃ of washing, last dry 3-5 minute at 120-160 ℃ again, obtain wet-method synthetic leather semi-finished product again;
Step (4), the wet-method synthetic leather semi-finished product that adopt dry process to make step (3) carry out Overlaying process and obtain veneer synthetic leather semi-finished product;
Step (5), step (4) gained veneer synthetic leather semi-finished product are carried out to tanning processing, obtain nonwoven fabric polyurethane sport playshoes leather.
Described impregnation technology for by nonwoven fabric at normal temperatures and pressures with 8-12 m/min of speed by the impregnating groove of polyurethane impregnated slurry is housed, dip time is 2-5 second.
The described dry process step of step (4) is for to be coated on dry method surface layer slurry 5-10 silk in dry method release liners by dry production equipment the first cutter head, and under temperature 60-150 ℃ of condition, dry 1-2 minute, forms dry method surface layer; By the second cutter head, at described dry method facing surface, apply 5-15 silk dry method tack coat slurry again, under 60-150 ℃ of temperature conditions, dry 1-2 minute, forms adhesive linkage; The half-finished front of wet-method synthetic leather is fitted in to tie layer surface, dry 2-3 minute under 60-150 ℃ of temperature conditions, the whole production process speed of a motor vehicle is 12-25 m/min;
The raw material of described dry method surface layer slurry and proportioning are:
Polyurethane slurry LT-50 100-150 parts by mass;
Dimethyl formamide 10-50 parts by mass;
Mill base, addition is the 1-20% of polyurethane slurry LT-50 quality;
Raw material and the proportioning of described dry method tack coat slurry are:
Polyurethane slurry SA-3635 120-180 parts by mass;
Dimethyl formamide 10-20 parts by mass;
It is by concentration, to be first that 0.05%-0.5% softener solution infiltrates processing 1-2 minute by described veneer synthetic leather semi-finished product that the described tanning of step (5) is processed; Then after roll pressed, then put into boarding machine, with 1500 revs/min of rotating speeds and temperature 20-50 ℃ condition, tanning 10-30 minute.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention adopts intensity is high, toughness is good high-density non-woven fabrics as base cloth, after nonwoven fabric is flooded by polyurethane impregnated slurry, again at nonwoven fabric front surface coated polyurethane coating slurry, finally through dry process, process and tanning processing acquisition nonwoven fabric polyurethane sport playshoes leather successively again, there is the superior physical and mechanical propertiess such as height is torn, height is peeled off, high bursting, also there is pliable and tough plentiful feel, good resilience and kishke feel effect simultaneously;
2, the present invention obtains after wet-method synthetic leather semi-finished product by dipping, coating, in conjunction with dry process, process and tanning processing, make finished product there is good ageing resistance, yellowing resistance, ABRASION RESISTANCE, improve resilience and the kishke feel of product, and by the method, can also obtain multiple coloured prod, enrich product category;
3, the outward appearance decorative pattern of product of the present invention is various, color abundant, bright in colour, fold is tiny, lightweight quantification and with low cost; The concept that meets " lightweight " that modern footwear industry advocates, large area is used this product can alleviate largely the weight of shoes, makes shoes dress lighter, comfortable, cost-saving.
The specific embodiment
Embodiment 1
The present embodiment nonwoven fabric polyurethane sport playshoes leather is after nonwoven fabric is flooded by polyurethane impregnated slurry, then applies polyurethane coating slurry, finally through dry process processing and tanning processing, obtains successively again;
The fiber composition mass ratio of nonwoven fabric is: polyamide fibre: terylene=15:85;
Described polyurethane impregnated slurry is that each raw material by following mass fraction obtains:
Described polyurethane coating slurry is obtained by each raw material of following mass fraction:
Wherein bleeding agent BYK-6798 is German Bick BYK chemical company product; Mill base PU is black is Hefei Amway polyurethane Co., Ltd product; Pass conditioning agent HY-607 is Dexing, Jinhu County Fine Chemical Works product; Defoamer T-502 is Nantong City Han Tai Chemical Co., Ltd. product; Polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238, polyester polyethers copolymerization polyurethane resin SW-5080RH, polyester polyethers copolymerization polyurethane resin SW-5060RH, polyester polyethers copolymerization polyurethane resin SW-4040RHA, poly-carbon type polyurethane resin SW-410PC, be Hefei Amway polyurethane new material Co., Ltd product.
The preparation method of the present embodiment nonwoven fabric polyurethane sport playshoes leather carries out as follows:
Step 1, preparation polyurethane impregnated slurry
In wet laid furnishes still, add successively dimethyl formamide, bleeding agent BYK-7018 and water-sprinkling agent F-200S, and stir at normal temperatures and pressures 12 minutes, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238 and mill base, and then stir at normal temperatures and pressures 25 minutes, finally under the condition of normal temperature, vacuum≤-0.75bar, stir 30 minutes, make polyurethane impregnated slurry;
Step 2, preparation polyurethane coating slurry
In wet laid furnishes still, add successively 125 parts of dimethyl formamides, water-sprinkling agent SF-330.4 part, pass conditioning agent HY-6073 part, black 5 parts of defoamer T-5020.2 part and mill base PU, under normal temperature and pressure, stir 15 minutes, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-5080RH130 part, polyester polyethers copolymerization polyurethane resin SW-5060RH120 part, polyester polyethers copolymerization polyurethane resin SW-4040RHA80 part and poly-carbon type polyurethane resin SW-410PC20 part, and then stir at normal temperatures and pressures 30 minutes, finally under the condition of normal-temperature vacuum degree≤-0.75bar, stir 30 minutes, obtain polyurethane coating slurry.
Step 3, prepare wet-method synthetic leather semi-finished product
The prepared polyurethane impregnated slurry of step 1 be impregnated in to 3 seconds of nonwoven fabric by impregnation technology, again the prepared polyurethane coating slurry of step 2 is coated on through impregnated nonwoven fabric positive, then being placed in mass concentration and being 23% dimethyl formamide solution solidifies, through 40 ℃ of washings, finally again at 120-160 ℃ dry 3 minutes, obtain wet-method synthetic leather semi-finished product again;
Step 4, the wet-method synthetic leather semi-finished product that adopt dry process to make step 3 carry out Overlaying process and obtain veneer synthetic leather semi-finished product;
Step 5, step 4 gained veneer synthetic leather semi-finished product are carried out to tanning processing, obtain nonwoven fabric polyurethane sport playshoes leather.
Dry process step, for 6 of dry method surface layer slurries are coated in dry method release liners by dry production equipment the first cutter head, is dried 2 minutes under 120 ℃ of conditions of temperature, forms dry method surface layer; By the second cutter head, at described dry method facing surface, apply 10 dry method tack coat slurries again, under 120 ℃ of temperature conditions, be dried 2 minutes, form adhesive linkage; The half-finished front of wet-method synthetic leather is fitted in to tie layer surface, under 120 ℃ of temperature conditions, be dried 2 minutes, the whole production process speed of a motor vehicle is 13 ms/min.
Raw material and the proportioning of the dry method surface layer slurry of dry process are:
Polyurethane slurry LT-50,120 parts by mass;
Dimethyl formamide, 20 parts by mass;
Mill base, addition is 5% of polyurethane slurry LT-50 quality;
Raw material and the proportioning of the dry method tack coat slurry of dry process are:
Polyurethane slurry SA-3635,120 parts by mass;
Dimethyl formamide, 15 parts by mass;
It is by concentration, to be first that 0.1% softener solution infiltrates processing 1 minute by described veneer synthetic leather semi-finished product that the tanning of step 5 is processed; Then after roll pressed, then put into boarding machine, with 1500 revs/min of rotating speeds and 30 ℃ of conditions of temperature, tanning 20 minutes.
Water-sprinkling agent F-200S is Quanzhou City Si Kang new material development Co., Ltd product; Polyurethane slurry LT-50 and SA-3635 are Hefei Amway polyurethane new material Co., Ltd product.
Embodiment 2
The present embodiment nonwoven fabric polyurethane sport playshoes leather is after nonwoven fabric is flooded by polyurethane impregnated slurry, then applies polyurethane coating slurry, finally through dry process processing and tanning processing, obtains successively again;
The fiber composition mass ratio of nonwoven fabric is: polyamide fibre: terylene=30:70;
Described polyurethane impregnated slurry is that each raw material by following mass fraction obtains:
Described polyurethane coating slurry is obtained by each raw material of following mass fraction:
Wherein bleeding agent BYK-6798 is German Bick BYK chemical company product; Mill base PU is black is Hefei Amway polyurethane new material Co., Ltd product; Pass conditioning agent HY-607 is Dexing, Jinhu County Fine Chemical Works product; Defoamer T-502 is Nantong City Han Tai Chemical Co., Ltd. product; Polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238, polyester polyethers copolymerization polyurethane resin SW-5080RH, polyester polyethers copolymerization polyurethane resin SW-5060RH, polyester polyethers copolymerization polyurethane resin SW-4040RHA, poly-carbon type polyurethane resin SW-410PC, be Hefei Amway polyurethane new material Co., Ltd product.
The preparation method of the present embodiment nonwoven fabric polyurethane sport playshoes leather carries out as follows:
Step 1, preparation polyurethane impregnated slurry
In wet laid furnishes still, add successively dimethyl formamide, bleeding agent BYK-7018 and water-sprinkling agent F-200S, and stir at normal temperatures and pressures 10 minutes, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238 and mill base, and then stir at normal temperatures and pressures 20 minutes, finally under the condition of normal temperature, vacuum≤-0.75bar, stir 30 minutes, make polyurethane impregnated slurry;
Step 2, preparation polyurethane coating slurry
In wet laid furnishes still, add successively 110 parts of dimethyl formamides, water-sprinkling agent F-200S0.6 part, pass conditioning agent HY-6074 part, black 6 parts of defoamer T-5020.1 part and mill base PU, under normal temperature and pressure, stir 10 minutes, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-5080RH150 part, polyester polyethers copolymerization polyurethane resin SW-5060RH100 part, polyester polyethers copolymerization polyurethane resin SW-4040RHA60 part and poly-carbon type polyurethane resin SW-410PC40 part, and then stir at normal temperatures and pressures 20 minutes, finally under the condition of normal-temperature vacuum degree≤-0.75bar, stir 40 minutes, obtain polyurethane coating slurry.
Step 3, prepare wet-method synthetic leather semi-finished product
The prepared polyurethane impregnated slurry of step 1 be impregnated in to 3 seconds of nonwoven fabric by impregnation technology, again the prepared polyurethane coating slurry of step 2 is coated on through impregnated nonwoven fabric positive, then being placed in mass concentration and being 25% dimethyl formamide solution solidifies, through 50 ℃ of washings, finally again at 120-160 ℃ dry 4 minutes, obtain wet-method synthetic leather semi-finished product again;
Step 4, the wet-method synthetic leather semi-finished product that adopt dry process to make step 3 carry out Overlaying process and obtain veneer synthetic leather semi-finished product;
Step 5, step 4 gained veneer synthetic leather semi-finished product are carried out to tanning processing, obtain nonwoven fabric polyurethane sport playshoes leather.
Dry process step, for 8 of dry method surface layer slurries are coated in dry method release liners by dry production equipment the first cutter head, is dried 1.5 minutes under 100 ℃ of conditions of temperature, forms dry method surface layer; By the second cutter head, at described dry method facing surface, apply 10 dry method tack coat slurries again, under 130 ℃ of temperature conditions, be dried 2 minutes, form adhesive linkage; The half-finished front of wet-method synthetic leather is fitted in to tie layer surface, under 120 ℃ of temperature conditions, be dried 2 minutes, the whole production process speed of a motor vehicle is 15 ms/min.
Raw material and the proportioning of the dry method surface layer slurry of dry process are:
Polyurethane slurry LT-50,125 parts by mass;
Dimethyl formamide, 40 parts by mass;
Mill base, addition is 10% of polyurethane slurry LT-50 quality;
Raw material and the proportioning of the dry method tack coat slurry of dry process are:
Polyurethane slurry SA-3635,160 parts by mass;
Dimethyl formamide, 18 parts by mass;
It is by concentration, to be first that 0.2% softener solution infiltrates processing 1-2 minute by described veneer synthetic leather semi-finished product that the tanning of step 5 is processed; Then after roll pressed, then put into boarding machine, with 1500 revs/min of rotating speeds and 40 ℃ of conditions of temperature, tanning 10 minutes.
The water-sprinkling agent F-200S Si Kang of Quanzhou City new material development Co., Ltd product; Polyurethane slurry LT-50 and SA-3635 are Hefei Amway polyurethane new material Co., Ltd product.
Embodiment 3
The present embodiment nonwoven fabric polyurethane sport playshoes leather is after nonwoven fabric is flooded by polyurethane impregnated slurry, then applies polyurethane coating slurry, finally through dry process processing and tanning processing, obtains successively again;
The fiber composition mass ratio of nonwoven fabric is: polyamide fibre: terylene=70:30;
Described polyurethane impregnated slurry is that each raw material by following mass fraction obtains:
Described polyurethane coating slurry is obtained by each raw material of following mass fraction:
Wherein bleeding agent BYK-6798 is German Bick BYK chemical company product; Mill base PU is black is Hefei Amway polyurethane new material Co., Ltd product; Pass conditioning agent HY-607 is Dexing, Jinhu County Fine Chemical Works product; Defoamer T-502 is Nantong City Han Tai Chemical Co., Ltd. product; Polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238, polyester polyethers copolymerization polyurethane resin SW-5080RH, polyester polyethers copolymerization polyurethane resin SW-5060RH, polyester polyethers copolymerization polyurethane resin SW-4040RHA, poly-carbon type polyurethane resin SW-410PC, be Hefei Amway polyurethane new material Co., Ltd product.
The preparation method of the present embodiment nonwoven fabric polyurethane sport playshoes leather carries out as follows:
Step 1, preparation polyurethane impregnated slurry
In wet laid furnishes still, add successively dimethyl formamide, bleeding agent BYK-7018 and water-sprinkling agent F-200S, and stir at normal temperatures and pressures 10 minutes, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238 and mill base PU black, and then stir at normal temperatures and pressures 30 minutes, finally under the condition of normal temperature, vacuum≤-0.75bar, stir 45 minutes, make polyurethane impregnated slurry;
Step 2, preparation polyurethane coating slurry
In wet laid furnishes still, add successively 145 parts of dimethyl formamides, water-sprinkling agent F-200S0.5 part, pass conditioning agent HY-6075 part, black 4 parts of defoamer T-5020.4 part and mill base PU, under normal temperature and pressure, stir 20 minutes, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-5080RH160 part, polyester polyethers copolymerization polyurethane resin SW-5060RH60 part, polyester polyethers copolymerization polyurethane resin SW-4040RHA100 part and poly-carbon type polyurethane resin SW-410PC30 part, and then stir at normal temperatures and pressures 30 minutes, finally under the condition of normal-temperature vacuum degree≤-0.75bar, stir 40 minutes, obtain polyurethane coating slurry.
Step 3, prepare wet-method synthetic leather semi-finished product
The prepared polyurethane impregnated slurry of step 1 be impregnated in to 5 seconds of nonwoven fabric by impregnation technology, again the prepared polyurethane coating slurry of step 2 is coated on through impregnated nonwoven fabric positive, then being placed in mass concentration and being 30% dimethyl formamide solution solidifies, through 60 ℃ of washings, finally again at 130 ℃ dry 5 minutes, obtain wet-method synthetic leather semi-finished product again;
Step 4, the wet-method synthetic leather semi-finished product that adopt dry process to make step 3 carry out Overlaying process and obtain veneer synthetic leather semi-finished product;
Step 5, step 4 gained veneer synthetic leather semi-finished product are carried out to tanning processing, obtain nonwoven fabric polyurethane sport playshoes leather.
Dry process step, for 5 of dry method surface layer slurries are coated in dry method release liners by dry production equipment the first cutter head, is dried 2 minutes under temperature 60 C condition, forms dry method surface layer; By the second cutter head, at described dry method facing surface, apply 10 dry method tack coat slurries again, under 100 ℃ of temperature conditions, be dried 2 minutes, form adhesive linkage; The half-finished front of wet-method synthetic leather is fitted in to tie layer surface, under 80 ℃ of temperature conditions, be dried 3 minutes, the whole production process speed of a motor vehicle is 18 ms/min;
The raw material of dry method surface layer slurry and proportioning are:
Polyurethane slurry LT-50,120 parts by mass;
Dimethyl formamide, 30 parts by mass;
Mill base, addition is 10% of polyurethane slurry LT-50 quality;
Raw material and the proportioning of the dry method tack coat slurry of dry process are:
Polyurethane slurry SA-3635,180 parts by mass;
Dimethyl formamide, 20 parts by mass;
It is by concentration, to be first that 0.05% softener solution infiltrates processing 1 minute by described veneer synthetic leather semi-finished product that step 5 tanning is processed; Then after roll pressed, then put into boarding machine, with 1500 revs/min of rotating speeds and 20 ℃ of conditions of temperature, tanning 30 minutes.
Water-sprinkling agent F-200S is Quanzhou City Si Kang new material development Co., Ltd product; Polyurethane slurry LT-50 and SA-3635 are Hefei Amway polyurethane new material Co., Ltd product.
After testing, functional non-woven fabric polyurethane sport playshoes leather of the present invention has excellent pliable and tough plentiful feel, good resilience and kishke feel effect, there is stronger physical property simultaneously, test data (method of testing is with reference to GB/T8949-2008) as shown in table 1: in form, test value 1 is the test value of embodiment 1, test value 2 is the test value of embodiment 2, and test value 3 is the test value of embodiment 3.
The test data of table 1 embodiment of the present invention
Claims (5)
1. a nonwoven fabric polyurethane sport playshoes is removed from office, it is characterized in that: described nonwoven fabric polyurethane sport playshoes leather is after nonwoven fabric is flooded by polyurethane impregnated slurry, apply again polyurethane coating slurry, finally through dry process, process and tanning processing acquisition successively again;
The fiber composition mass ratio of described nonwoven fabric is: polyamide fibre: terylene=0-50:100-50;
Each raw material of described polyurethane impregnated slurry by the formation of mass fraction is:
Each raw material of described polyurethane coating slurry by the formation of mass fraction is:
2. the preparation method that nonwoven fabric polyurethane sport playshoes according to claim 1 is removed from office, is characterized in that carrying out as follows:
Step (1), preparation polyurethane impregnated slurry
In wet laid furnishes still, add successively dimethyl formamide, bleeding agent BYK-7018 and water-sprinkling agent F-200S, and stir at normal temperatures and pressures 10-30 minute, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-4168, polyester polyethers copolymerization polyurethane resin SW-4238 and mill base PU black, and then stir at normal temperatures and pressures 20-40 minute, finally under the condition of normal temperature, vacuum≤-0.75bar, stir 30-60 minute, make polyurethane impregnated slurry;
Step (2), preparation polyurethane coating slurry
In wet laid furnishes still, add successively dimethyl formamide 100-300 part, water-sprinkling agent F-200S0-0.8 part, pass conditioning agent HY-6071-10 part, the black 0-10 part of defoamer T-5020-0.5 part and mill base PU, under normal temperature and pressure, stir 10-30 minute, add successively while stirring at normal temperatures and pressures again polyester polyethers copolymerization polyurethane resin SW-5080RH50-200 part, polyester polyethers copolymerization polyurethane resin SW-5060RH50-150 part, polyester polyethers copolymerization polyurethane resin SW-4040RHA50-150 part and poly-carbon type polyurethane resin SW-410PC0-100 part, and then stir at normal temperatures and pressures 20-40 minute, finally under the condition of normal-temperature vacuum degree≤-0.75bar, stir 30-60 minute, obtain polyurethane coating slurry,
Step (3), prepare wet-method synthetic leather semi-finished product
The prepared polyurethane impregnated slurry of step (1) be impregnated on nonwoven fabric by impregnation technology, again the prepared polyurethane coating slurry of step (2) is coated on through impregnated nonwoven fabric positive, then the dimethyl formamide solution that is placed in mass concentration and is 20-30% solidifies, through 30-60 ℃ of washing, last dry 3-5 minute at 120-160 ℃ again, obtain wet-method synthetic leather semi-finished product again;
Step (4), the wet-method synthetic leather semi-finished product that adopt dry process to make step (3) carry out Overlaying process and obtain veneer synthetic leather semi-finished product;
Step (5), step (4) gained veneer synthetic leather semi-finished product are carried out to tanning processing, obtain nonwoven fabric polyurethane sport playshoes leather.
3. the preparation method that nonwoven fabric polyurethane sport playshoes according to claim 2 is removed from office, it is characterized in that: described impregnation technology for by nonwoven fabric at normal temperatures and pressures with 8-12 m/min of speed by the impregnating groove of polyurethane impregnated slurry is housed, dip time is 2-5 second.
4. the preparation method that nonwoven fabric polyurethane sport playshoes according to claim 2 is removed from office, is characterized in that:
The described dry process step of step (4) is for to be coated on dry method surface layer slurry 5-10 silk in dry method release liners by dry production equipment the first cutter head, and under temperature 60-150 ℃ of condition, dry 1-2 minute, forms dry method surface layer; By the second cutter head, at described dry method facing surface, apply 5-15 silk dry method tack coat slurry again, under 60-150 ℃ of temperature conditions, dry 1-2 minute, forms adhesive linkage; The half-finished front of wet-method synthetic leather is fitted in to tie layer surface, dry 2-3 minute under 60-150 ℃ of temperature conditions, the whole production process speed of a motor vehicle is 12-25 m/min;
The raw material of described dry method surface layer slurry and proportioning are:
Polyurethane slurry LT-50 100-150 parts by mass;
Dimethyl formamide 10-50 parts by mass;
Mill base, addition is the 1-20% of polyurethane slurry LT-50 quality;
Raw material and the proportioning of described dry method tack coat slurry are:
Polyurethane slurry SA-3635 120-180 parts by mass;
Dimethyl formamide 10-20 parts by mass.
5. the preparation method of nonwoven fabric polyurethane sport playshoes leather according to claim 2, is characterized in that: it is by concentration, to be first that 0.05%-0.5% softener solution infiltrates processing 1-2 minute by described veneer synthetic leather semi-finished product that the described tanning of step (5) is processed; Then after roll pressed, then put into boarding machine, with 1500 revs/min of rotating speeds and temperature 20-50 ℃ condition, tanning 10-30 minute.
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| CN105421045A (en) * | 2015-11-16 | 2016-03-23 | 广东菲安妮皮具股份有限公司 | Softness and abrasion-resistance treatment process of polyvinyl chloride artificial leather |
| CN105970662A (en) * | 2016-03-08 | 2016-09-28 | 安徽安利材料科技股份有限公司 | A method of preparing polyurethane synthetic leather having overall antibacterial and mildew-proof properties |
| CN106245350A (en) * | 2016-08-29 | 2016-12-21 | 扬州市德运塑业科技股份有限公司 | A kind of high elasticity abrasion-proof ball leather |
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| CN112647313A (en) * | 2021-01-08 | 2021-04-13 | 商丘京威体育用品有限公司 | Preparation method of fluorine-free environment-friendly synthetic leather for sports shoes |
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| CN111926586A (en) * | 2020-07-31 | 2020-11-13 | 安安(中国)有限公司 | Protein synthetic leather and production method thereof |
| CN111926586B (en) * | 2020-07-31 | 2023-08-25 | 安安(中国)有限公司 | Protein synthetic leather and production method thereof |
| CN112647313A (en) * | 2021-01-08 | 2021-04-13 | 商丘京威体育用品有限公司 | Preparation method of fluorine-free environment-friendly synthetic leather for sports shoes |
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