CN105178052A - Preparation process of microfiber soft sofa leather - Google Patents
Preparation process of microfiber soft sofa leather Download PDFInfo
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- CN105178052A CN105178052A CN201510479953.5A CN201510479953A CN105178052A CN 105178052 A CN105178052 A CN 105178052A CN 201510479953 A CN201510479953 A CN 201510479953A CN 105178052 A CN105178052 A CN 105178052A
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- super fine
- artificial leather
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- nonwoven fabric
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- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000010985 leather Substances 0.000 title claims abstract description 21
- 229920001410 Microfiber Polymers 0.000 title abstract 3
- 239000003658 microfiber Substances 0.000 title abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000004043 dyeing Methods 0.000 claims abstract description 21
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 18
- 229920000570 polyether Polymers 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 238000007711 solidification Methods 0.000 claims abstract description 16
- 230000008023 solidification Effects 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 15
- 238000005470 impregnation Methods 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 11
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 11
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 11
- 229920002292 Nylon 6 Polymers 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 75
- 239000002649 leather substitute Substances 0.000 claims description 44
- 238000000576 coating method Methods 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 25
- 238000010009 beating Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 20
- 238000005516 engineering process Methods 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 12
- 206010000269 abscess Diseases 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229920005749 polyurethane resin Polymers 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 10
- 239000004673 amino silicone softener Substances 0.000 claims description 6
- -1 pH value is 5 ~ 7 Substances 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 238000009960 carding Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000003607 modifier Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229940125904 compound 1 Drugs 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- OBFQBDOLCADBTP-UHFFFAOYSA-N aminosilicon Chemical class [Si]N OBFQBDOLCADBTP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 239000011265 semifinished product Substances 0.000 claims description 2
- 239000002585 base Substances 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 239000008041 oiling agent Substances 0.000 abstract 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229940125782 compound 2 Drugs 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention relates to a preparation process of a microfiber soft sofa leather. The process includes: selecting polyamide 6 as the island component and low density polyethylene as the sea component, mixing the island component with the sea component in a mass ratio of 48-55:45-52 to make a non-woven fabric, subjecting the non-woven fabric to wet impregnation in a polyether resin impregnation solution with a modulus of 15-25kg/cm<2>, a solid content of 40-45%, and a viscosity of 50000-70000cps/25DEG C, then subjecting the non-woven fabric to solidification foaming and high temperature washing, then performing toluene reduction treatment, and then carrying out oiling treatment on the processed polyurethane non-woven fabric wet base with an oiling agent at a mass concentration of 15-20%, and controlling the oiling temperature at 120-130DEG C, conducting dyeing and dry release paper transfer overlaying treatment, and finally performing softening treatment to obtain the microfiber soft sofa leather. The preparation method provided by the invention is simple, the steps are easy to operate, the low modulus, high solid content and low viscosity polyether resin is employed to conduct wet impregnation treatment, and the prepared sofa leather base is subjected to softening treatment by alkali liquor, so that the prepared sofa leather has better softness, good handfeel elasticity, and better market application prospects.
Description
Technical field
The present invention relates to a kind of preparation technology of super fine moccasin sofa artificial leather, belong to artificial leather preparing technical field.
Background technology
Natural leather is widely used in life staying idle at home apparatus because have more good characteristic by people, as sofa artificial leather etc., but along with the increase of the size of population, also increasing to the demand of natural leather, the artificial leather that therefore processability is more excellent more can meet the huge market demand.But the performances such as the Synthetic Leather feel elasticity of preparation at present can not meet the demand of consumer to sofa artificial leather, and the complicated process of preparation feature of environmental protection is poor.
Summary of the invention
The object of the invention is to solve existing sofa artificial leather complicated process of preparation, the poor and problem that the sofa artificial leather cortex prepared is harder of environment-friendly type, provides the preparation technology of the simply super fine moccasin sofa artificial leather of a kind of preparation technology.
The present invention adopts following technical scheme: a kind of preparation technology of super fine moccasin sofa artificial leather, comprises the steps:
(1) preparation of super fine denier islands-in-sea type fibre and nonwoven fabric: choosing polyamide 6 is island component, low density polyethylene (LDPE) is sea component, described island component and sea component are 48 ~ 55:45 ~ 52 mix and blend according to mass ratio, obtained super fine denier indefinite island sea-island staple fiber, after shredding, carding, adopted by indefinite for the super fine denier of preparation island sea-island staple fiber high needling density repeatedly to puncture up and down obtain nonwoven fabric, through thermal contraction fixation after bundling, temperature is 100 ~ 130 DEG C, the speed of a motor vehicle is 6 ~ 7m/min, and nonwoven fabric density is 0.32 ~ 0.34g/m
2, adopt shaping roller tube to plate, shaping roller tube gap is 1.1 ~ 1.5 with the ratio of nonwoven thickness;
(2) wet method impregnation: by nonwoven fabric through modulus be 15 ~ 25kg/cm
2solid content is 35 ~ 40%, viscosity is that the polyether resin of 3000 ~ 5000cps/25 DEG C is containing immersion liquid, the impregnation speed of a motor vehicle is 5 ~ 7m/min, first the dimethyl formamide solidification liquid being 40 ~ 50% by mass concentration carries out pre-consolidated foaming, then successively adopt mass concentration be 30 ~ 40% and mass concentration be 20 ~ 30% dimethyl formamide solidification liquid carry out solidifying foaming, control solidi fication foam structure, solidifying abscess is upright fine and close abscess, then dimethyl formamide residual on nonwoven fabric is removed in washing, obtained polyurethane nonwoven fabric wet method base;
(3) toluene decrement: polyurethane nonwoven fabric wet method base step (2) obtained is through toluene groove, temperature in toluene groove is 85 ~ 90 DEG C, then be the rinsing bowl of 95 ~ 100 DEG C through several temperature, adopt high-temperature water to remove residual toluene, obtained super fine leather semi-finished product Base;
(4) oil, rub skin: obtained for step (3) super fine leather Base is carried out oiling treatment, the mass concentration of finish is 15 ~ 20%, in control, oil temperature is 120 ~ 130 DEG C, rotation speed of fan is 900 ~ 1100r/min, large overfeeding overfeeding longitudinal contraction 5 ~ 6%, the obtained super fine leather Base of ultra-soft;
(5) dye: super for ultra-soft fine leather Base is carried out dyeing preliminary treatment, finely remove from office Base by super for ultra-soft to be placed in mass concentration be that the amino silicone softener of 2-5% processes, treatment temperature is 90 ~ 100 DEG C, and the time is 1 ~ 2 hour; And then carrying out dyeing process: dyeing temperature is 90 ~ 110 DEG C, dyeing time 2 ~ 3h;
(6) dry method release liners transfer veneer: investment precoat, middle coating intermediate, tack coat coating are coated in release liners successively by order from the bottom up, described investment precoat is dried 16 ~ 18s and is obtained surface layer at 90 ~ 120 DEG C, described middle coating intermediate is dried 30 ~ 40s and is obtained middle level at 90 ~ 120 DEG C, described tack coat coating prebake 30 ~ 35s at 70 ~ 80 DEG C obtains tack coat, final obtained release liners coated film, by the sofa artificial leather base alignment and congruence that obtained release liners coated film and step (5) obtain, then after drying through 120 ~ 130 DEG C, release liners and base are peeled off
(7) soft treatment: first the sofa artificial leather prepared is adopted and beats skin machine and carry out beating rubbing, beating skin unit frequency is 15 ~ 25HZ, beating the time of rubbing is 10 ~ 30s, then adopt and rub cylinder by beating the sofa artificial leather after rubbing and carry out wind and rub, rubbing a rotating speed is 1200 ~ 1300r/min, the speed of a motor vehicle is 3 ~ 5m/min, and the wind time of rubbing is 15 ~ 30min, obtained super fine moccasin sofa artificial leather.
Further, the finish in described step (4) is aliphatic category modified amino silicon oil, and pH value is 5 ~ 7, and solid content is 15 ~ 20%.
Further, polyether resin in described step (2) is counted by weight containing the proportioning of immersion liquid: polyether resin 100 parts, dimethyl formamide 20 ~ 30 parts, superfine fibre filler 10 ~ 20 parts, modified organic silicon oxygen alkane softener 1 ~ 2 part, the cell modifiers of nonionic methane series and ether compound 1 ~ 2 part
fatty alcohol-polyoxyethylene etherbleeding agent 1 ~ 2 part.
Further, the component of described fabric coatings is counted by weight: polyurethane resin 50 ~ 55 parts, dimethyl formamide or toluene solvant 40 ~ 42 parts, color chips 6 ~ 9 parts, organosilicon auxiliary agent 0.3 ~ 0.6 part.
Further, described middle coat and tack coat coating adopt solid content to be 45 ~ 55%, and modulus is 4 ~ 9kg/cm2, and viscosity is that the fluid polyurethane resin of 8000 ~ 10000Pa.s/25 DEG C is made.
Preparation technology of the present invention is simple, step is easy to operation, employing low modulus, high solids content, low viscosity polyether resin carry out wet method impregnation process and the amino silicone softener being 2-5% by the sofa artificial leather base prepared employing mass concentration carries out soft treatment, the sofa artificial leather prepared is made to have better pliability, feel good springiness, has better market application foreground.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment one: a kind of preparation technology of super fine moccasin sofa artificial leather, comprises the steps:
(1) preparation of super fine denier islands-in-sea type fibre and nonwoven fabric: choosing polyamide 6 is island component, low density polyethylene (LDPE) is sea component, island component and sea component are 48:45 mix and blend according to mass ratio, obtained super fine denier indefinite island sea-island staple fiber, after shredding, carding, adopted by indefinite for the super fine denier of preparation island sea-island staple fiber high needling density repeatedly to puncture up and down obtain nonwoven fabric, through thermal contraction fixation after bundling, temperature is 100 DEG C, the speed of a motor vehicle is 6m/min, and nonwoven fabric density is 0.32g/m
2, adopt shaping roller tube to plate, shaping roller tube gap is 1.1 with the ratio of nonwoven thickness;
(2) wet method impregnation: by nonwoven fabric through modulus be 15kg/cm
2solid content is 35%, viscosity is that the polyether resin of 3000cps/25 DEG C is containing immersion liquid, polyether resin counts polyether resin 100 parts containing the formula number of immersion liquid, dimethyl formamide 20 parts, superfine fibre filler 10 parts, modified organic silicon oxygen alkane softener 1 part, the cell modifiers of nonionic methane series and ether compound 1 part
fatty alcohol-polyoxyethylene etherbleeding agent 1 part, the impregnation speed of a motor vehicle is 5m/min, first the dimethyl formamide solidification liquid being 40% by mass concentration carries out pre-consolidated foaming, then successively adopt mass concentration be 30% and mass concentration be 20% dimethyl formamide solidification liquid carry out solidifying foaming, control solidi fication foam structure, solidifying abscess is upright fine and close abscess, and then dimethyl formamide residual on nonwoven fabric is removed in washing, obtained polyurethane nonwoven fabric wet method base;
(3) toluene decrement: polyurethane nonwoven fabric wet method base step (2) obtained is through toluene groove, and the temperature in toluene groove is 85 DEG C, is then the rinsing bowl of 95 DEG C through several temperature, adopts high-temperature water to remove residual toluene;
(4) oil, rub skin: the polyurethane nonwoven fabric wet method base after step (3) being processed carries out oiling treatment, the mass concentration of finish is 15%, in control, oil temperature is 120 DEG C, rotation speed of fan is 900r/min, large overfeeding overfeeding longitudinal contraction 5%, the obtained super fine leather Base of ultra-soft;
(5) dye: super for ultra-soft fine leather Base is carried out dyeing preliminary treatment, by super for ultra-soft fine remove from office Base be placed in mass concentration be 2% amino silicone softener process, treatment temperature is 90 DEG C, and the time is 1 hour; And then carrying out dyeing process: dyeing temperature is 90 DEG C, dyeing time 2h;
(6) dry method release liners transfer veneer: investment precoat, middle coating intermediate, tack coat coating are coated in release liners successively by order from the bottom up, the component of fabric coatings is counted by weight: polyurethane resin 50 parts, dimethyl formamide or toluene solvant 40 parts, color chips 6 parts, organosilicon auxiliary agent 0.3 part, middle coat and tack coat coating adopt solid content to be 45%, and modulus is 4kg/cm
2viscosity is that the fluid polyurethane resin of 8000Pa.s/25 DEG C is made, investment precoat is dried 16s and is obtained surface layer at 90 DEG C, described middle coating intermediate is dried 30s and is obtained middle level at 90 DEG C, tack coat coating is dried 30s and is obtained tack coat at 70 DEG C, final obtained release liners coated film, by the sofa artificial leather base alignment and congruence that obtained release liners coated film and step (5) obtain, then after drying through 120 DEG C peels off release liners and base;
(7) soft treatment: first the sofa artificial leather prepared is adopted and beats skin machine and carry out beating rubbing, beating skin unit frequency is 15HZ, beating the time of rubbing is 10s, then adopt and rub cylinder by beating the sofa artificial leather after rubbing and carry out wind and rub, rubbing a rotating speed is 1200r/min, the speed of a motor vehicle is 3m/min, and the wind time of rubbing is 15min, obtained super fine moccasin sofa artificial leather.
Embodiment two:
A preparation technology for super fine moccasin sofa artificial leather, comprises the steps:
(1) preparation of super fine denier islands-in-sea type fibre and nonwoven fabric: choosing polyamide 6 is island component, low density polyethylene (LDPE) is sea component, island component and sea component are 50:50 mix and blend according to mass ratio, obtained super fine denier indefinite island sea-island staple fiber, after shredding, carding, adopted by indefinite for the super fine denier of preparation island sea-island staple fiber high needling density repeatedly to puncture up and down obtain nonwoven fabric, through thermal contraction fixation after bundling, temperature is 120 DEG C, the speed of a motor vehicle is 6.5m/min, and nonwoven fabric density is 0.33g/m
2, adopt shaping roller tube to plate, shaping roller tube gap is 1.4 with the ratio of nonwoven thickness;
(2) wet method impregnation: by nonwoven fabric through modulus be 20kg/cm
2solid content is 37%, viscosity is that the polyether resin of 4000cps/25 DEG C is containing immersion liquid, polyether resin counts polyether resin 100 parts containing the formula number of immersion liquid, dimethyl formamide 25 parts, superfine fibre filler 15 parts, modified organic silicon oxygen alkane softener 1.5 parts, the cell modifiers of nonionic methane series and ether compound 1.5 parts
fatty alcohol-polyoxyethylene etherbleeding agent 1.5 parts, the impregnation speed of a motor vehicle is 6m/min, first the dimethyl formamide solidification liquid being 45% by mass concentration carries out pre-consolidated foaming, then successively adopt mass concentration be 35% and mass concentration be 25% dimethyl formamide solidification liquid carry out solidifying foaming, control solidi fication foam structure, solidifying abscess is upright fine and close abscess, and then dimethyl formamide residual on nonwoven fabric is removed in washing, obtained polyurethane nonwoven fabric wet method base;
(3) toluene decrement: polyurethane nonwoven fabric wet method base step (2) obtained is through toluene groove, and the temperature in toluene groove is 88 DEG C, is then the rinsing bowl of 98 DEG C through several temperature, adopts high-temperature water to remove residual toluene;
(4) oil, rub skin: the polyurethane nonwoven fabric wet method base after step (3) being processed carries out oiling treatment, the mass concentration of finish is 18%, in control, oil temperature is 125 DEG C, rotation speed of fan is 1000r/min, large overfeeding overfeeding longitudinal contraction 5%, the obtained super fine leather Base of ultra-soft;
(5) dye: super for ultra-soft fine leather Base is carried out dyeing preliminary treatment, by super for ultra-soft fine remove from office Base be placed in mass concentration be 4% amino silicone softener process, treatment temperature is 95 DEG C, and the time is 1.5 hours; And then carrying out dyeing process: dyeing temperature is 100 DEG C, dyeing time 2.5h;
(6) dry method release liners transfer veneer: investment precoat, middle coating intermediate, tack coat coating are coated in release liners successively by order from the bottom up, the component of fabric coatings is counted by weight: polyurethane resin 52 parts, dimethyl formamide or toluene solvant 41 parts, color chips 8 parts, organosilicon auxiliary agent 0.5 part, middle coat and tack coat coating adopt solid content to be 50%, and modulus is 8kg/cm
2viscosity is that the fluid polyurethane resin of 9000Pa.s/25 DEG C is made, investment precoat is dried 16 ~ 18s and is obtained surface layer at 100 DEG C, middle coating intermediate is dried 35s and is obtained middle level at 100 DEG C, tack coat coating is dried 32s and is obtained tack coat at 75 DEG C, final obtained release liners coated film, by the sofa artificial leather base alignment and congruence that obtained release liners coated film and step (5) obtain, then after drying through 125 DEG C peels off release liners and base
(7) soft treatment: first the sofa artificial leather prepared is adopted and beats skin machine and carry out beating rubbing, beating skin unit frequency is 20HZ, beating the time of rubbing is 20s, then adopt and rub cylinder by beating the sofa artificial leather after rubbing and carry out wind and rub, rubbing a rotating speed is 1250r/min, the speed of a motor vehicle is 4m/min, and the wind time of rubbing is 20min, obtained super fine moccasin sofa artificial leather.
Embodiment three: a kind of preparation technology of super fine moccasin sofa artificial leather, comprises the steps:
(1) preparation of super fine denier islands-in-sea type fibre and nonwoven fabric: choosing polyamide 6 is island component, low density polyethylene (LDPE) is sea component, island component and sea component are 55:52 mix and blend according to mass ratio, obtained super fine denier indefinite island sea-island staple fiber, after shredding, carding, adopted by indefinite for the super fine denier of preparation island sea-island staple fiber high needling density repeatedly to puncture up and down obtain nonwoven fabric, through thermal contraction fixation after bundling, temperature is 130 DEG C, the speed of a motor vehicle is 7m/min, and nonwoven fabric density is 0.34g/m
2, adopt shaping roller tube to plate, shaping roller tube gap is 1.5 with the ratio of nonwoven thickness;
(2) wet method impregnation: by nonwoven fabric through modulus be 25kg/cm
2, solid content is 40%, viscosity is that the polyether resin of 5000cps/25 DEG C is containing immersion liquid, polyether resin counts polyether resin 100 parts containing the formula number of immersion liquid, dimethyl formamide 30 parts, superfine fibre filler 20 parts, modified organic silicon oxygen alkane softener 2 parts, the cell modifiers of nonionic methane series and ether compound 2 parts, fatty alcohol-polyoxyethylene ether bleeding agent 2 parts, the impregnation speed of a motor vehicle is 7m/min, first the dimethyl formamide solidification liquid being 50% by mass concentration carries out pre-consolidated foaming, then successively adopt mass concentration be 40% and mass concentration be 30% dimethyl formamide solidification liquid carry out solidifying foaming, control solidi fication foam structure, solidifying abscess is upright fine and close abscess, then dimethyl formamide residual on nonwoven fabric is removed in washing, obtained polyurethane nonwoven fabric wet method base,
(3) toluene decrement: polyurethane nonwoven fabric wet method base step (2) obtained is through toluene groove, and the temperature in toluene groove is 90 DEG C, is then the rinsing bowl of 100 DEG C through several temperature, adopts high-temperature water to remove residual toluene;
(4) oil, rub skin: the polyurethane nonwoven fabric wet method base after step (3) being processed carries out oiling treatment, the mass concentration of finish is 20%, in control, oil temperature is 130 DEG C, rotation speed of fan is 1100r/min, large overfeeding overfeeding longitudinal contraction 6%, the obtained super fine leather Base of ultra-soft;
(5) dye: super for ultra-soft fine leather Base is carried out dyeing preliminary treatment, by super for ultra-soft fine remove from office Base be placed in mass concentration be 5% amino silicone softener process, treatment temperature is 100 DEG C, and the time is 2 hours; And then carrying out dyeing process: dyeing temperature is 110 DEG C, dyeing time 3h;
(6) dry method release liners transfer veneer: investment precoat, middle coating intermediate, tack coat coating are coated in release liners successively by order from the bottom up, the component of fabric coatings is counted by weight: polyurethane resin 25 parts, dimethyl formamide or toluene solvant 42 parts, color chips 9 parts, organosilicon auxiliary agent 0.6 part, middle coat and tack coat coating adopt solid content to be 55%, and modulus is 9kg/cm
2viscosity is that the fluid polyurethane resin of 10000Pa.s/25 DEG C is made, investment precoat is dried 18s and is obtained surface layer at 120 DEG C, middle coating intermediate is dried 40s and is obtained middle level at 120 DEG C, tack coat coating is dried 35s and is obtained tack coat at 80 DEG C, final obtained release liners coated film, by the sofa artificial leather base alignment and congruence that obtained release liners coated film and step (5) obtain, then after drying through 130 DEG C peels off release liners and base
(7) soft treatment: first the sofa artificial leather prepared is adopted and beats skin machine and carry out beating rubbing, beating skin unit frequency is 25HZ, beating the time of rubbing is 30s, then adopt and rub cylinder by beating the sofa artificial leather after rubbing and carry out wind and rub, rubbing a rotating speed is 1300r/min, the speed of a motor vehicle is 5m/min, and the wind time of rubbing is 30min, obtained super fine moccasin sofa artificial leather.
Super fine moccasin sofa artificial leather embodiment one, embodiment two and embodiment three prepared is according to softness standard: ENISO17235 detects, get under testing sample is positioned over softness meter, press down softness meter handle to assigned address, then the data on softness meter are read, the super fine moccasin sofa artificial leather softness of result display embodiment one, embodiment two and embodiment three preparation: > 5.0.The super fine moccasin sofa artificial leather prepared has good softness.
Claims (5)
1. a preparation technology for super fine moccasin sofa artificial leather, is characterized in that: comprise the steps:
(1) preparation of super fine denier islands-in-sea type fibre and nonwoven fabric: choosing polyamide 6 is island component, low density polyethylene (LDPE) is sea component, described island component and sea component are 48 ~ 55:45 ~ 52 mix and blend according to mass ratio, obtained super fine denier indefinite island sea-island staple fiber, after shredding, carding, adopted by indefinite for the super fine denier of preparation island sea-island staple fiber high needling density repeatedly to puncture up and down obtain nonwoven fabric, through thermal contraction fixation after bundling, temperature is 100 ~ 130 DEG C, the speed of a motor vehicle is 6 ~ 7m/min, and nonwoven fabric density is 0.32 ~ 0.34g/m
2, adopt shaping roller tube to plate, shaping roller tube gap is 1.1 ~ 1.5 with the ratio of nonwoven thickness;
(2) wet method impregnation: by nonwoven fabric through modulus be 15 ~ 25kg/cm
2solid content is 35 ~ 40%, viscosity is that the polyether resin of 3000 ~ 5000cps/25 DEG C is containing immersion liquid, the impregnation speed of a motor vehicle is 5 ~ 7m/min, first the dimethyl formamide solidification liquid being 40 ~ 50% by mass concentration carries out pre-consolidated foaming, then successively adopt mass concentration be 30 ~ 40% and mass concentration be 20 ~ 30% dimethyl formamide solidification liquid carry out solidifying foaming, control solidi fication foam structure, solidifying abscess is upright fine and close abscess, then dimethyl formamide residual on nonwoven fabric is removed in washing, obtained polyurethane nonwoven fabric wet method base;
(3) toluene decrement: polyurethane nonwoven fabric wet method base step (2) obtained is through toluene groove, temperature in toluene groove is 85 ~ 90 DEG C, then be the rinsing bowl of 95 ~ 100 DEG C through several temperature, adopt high-temperature water to remove residual toluene, obtained super fine leather semi-finished product Base;
(4) oil, rub skin: obtained for step (3) super fine leather Base is carried out oiling treatment, the mass concentration of finish is 15 ~ 20%, in control, oil temperature is 120 ~ 130 DEG C, rotation speed of fan is 900 ~ 1100r/min, large overfeeding overfeeding longitudinal contraction 5 ~ 6%, the obtained super fine leather Base of ultra-soft;
(5) dye: super for ultra-soft fine leather Base is carried out dyeing preliminary treatment, by super for ultra-soft fine remove from office Base be placed in mass concentration be 2 ~ 5% amino silicone softener process, treatment temperature is 90 ~ 100 DEG C, and the time is 1 ~ 2 hour; And then carrying out dyeing process: dyeing temperature is 90 ~ 110 DEG C, dyeing time 2 ~ 3h;
(6) dry method release liners transfer veneer: investment precoat, middle coating intermediate, tack coat coating are coated in release liners successively by order from the bottom up, described investment precoat is dried 16 ~ 18s and is obtained surface layer at 90 ~ 120 DEG C, described middle coating intermediate is dried 30 ~ 40s and is obtained middle level at 90 ~ 120 DEG C, described tack coat coating prebake 30 ~ 35s at 70 ~ 80 DEG C obtains tack coat, final obtained release liners coated film, by the sofa artificial leather base alignment and congruence that obtained release liners coated film and step (5) obtain, then after drying through 120 ~ 130 DEG C, release liners and base are peeled off
(7) soft treatment: first the sofa artificial leather prepared is adopted and beats skin machine and carry out beating rubbing, beating skin unit frequency is 15 ~ 25HZ, beating the time of rubbing is 10 ~ 30s, then adopt and rub cylinder by beating the sofa artificial leather after rubbing and carry out wind and rub, rubbing a rotating speed is 1200 ~ 1300r/min, the speed of a motor vehicle is 3 ~ 5m/min, and the wind time of rubbing is 15 ~ 30min, obtained super fine moccasin sofa artificial leather.
2. the preparation technology of super fine moccasin sofa artificial leather as claimed in claim 1, it is characterized in that: the finish in described step (4) is aliphatic category modified amino silicon oil, pH value is 5 ~ 7, and solid content is 15 ~ 20%.
3. the preparation technology of super fine moccasin sofa artificial leather as claimed in claim 1, it is characterized in that: the polyether resin in described step (2) is counted by weight containing the proportioning of immersion liquid: polyether resin 100 parts, dimethyl formamide 20 ~ 30 parts, superfine fibre filler 10 ~ 20 parts, modified organic silicon oxygen alkane softener 1 ~ 2 part, the cell modifiers of nonionic methane series and ether compound 1 ~ 2 part, fatty alcohol-polyoxyethylene ether bleeding agent 1 ~ 2 part.
4. the preparation technology of super fine moccasin sofa artificial leather as claimed in claim 1, is characterized in that: the component of described fabric coatings is counted by weight: polyurethane resin 50 ~ 55 parts, dimethyl formamide or toluene solvant 40 ~ 42 parts, color chips 6 ~ 9 parts, organosilicon auxiliary agent 0.3 ~ 0.6 part.
5. the preparation technology of super fine moccasin sofa artificial leather as claimed in claim 1, is characterized in that: described middle coat and tack coat coating adopt solid content to be 45 ~ 55%, and modulus is 4 ~ 9kg/cm
2, viscosity is that the fluid polyurethane resin of 8000 ~ 10000Pa.s/25 DEG C is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479953.5A CN105178052A (en) | 2015-08-07 | 2015-08-07 | Preparation process of microfiber soft sofa leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479953.5A CN105178052A (en) | 2015-08-07 | 2015-08-07 | Preparation process of microfiber soft sofa leather |
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| Publication Number | Publication Date |
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| CN105178052A true CN105178052A (en) | 2015-12-23 |
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| CN201510479953.5A Pending CN105178052A (en) | 2015-08-07 | 2015-08-07 | Preparation process of microfiber soft sofa leather |
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| CN106192450A (en) * | 2016-08-31 | 2016-12-07 | 福建博艺材料科技有限公司 | A kind of manufacturing process of wet-type PU synthetic leather |
| CN106521982A (en) * | 2016-10-27 | 2017-03-22 | 泉州众信超纤科技股份有限公司 | Flame retardation-resistant and antistatic microfiber material and product preparation technology thereof |
| CN106544873A (en) * | 2016-10-27 | 2017-03-29 | 泉州众信超纤科技股份有限公司 | The preparation technology of graphene-containing woven fabric material and product |
| CN109518467A (en) * | 2018-11-08 | 2019-03-26 | 江苏华峰超纤材料有限公司 | Ultralow pyrocondensation polyurethane superfine fiber fabric and preparation method thereof |
| CN109537291A (en) * | 2018-12-11 | 2019-03-29 | 无锡双象超纤材料股份有限公司 | A kind of preparation method of Cambodia's sense woven fabric sofa artificial leather bass |
| EP3476998A4 (en) * | 2016-06-22 | 2020-01-01 | Kuraray Co., Ltd. | FREE SIMILICUIR AND MANUFACTURING METHOD THEREOF |
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| EP3476998A4 (en) * | 2016-06-22 | 2020-01-01 | Kuraray Co., Ltd. | FREE SIMILICUIR AND MANUFACTURING METHOD THEREOF |
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| CN109537291A (en) * | 2018-12-11 | 2019-03-29 | 无锡双象超纤材料股份有限公司 | A kind of preparation method of Cambodia's sense woven fabric sofa artificial leather bass |
| CN109537291B (en) * | 2018-12-11 | 2021-04-30 | 无锡双象超纤材料股份有限公司 | Preparation method of high-cotton-feeling microfiber sofa leather bass |
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