CN103088661A - Manufacturing method of low-resistivity PU synthetic leather - Google Patents
Manufacturing method of low-resistivity PU synthetic leather Download PDFInfo
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- CN103088661A CN103088661A CN2013100416173A CN201310041617A CN103088661A CN 103088661 A CN103088661 A CN 103088661A CN 2013100416173 A CN2013100416173 A CN 2013100416173A CN 201310041617 A CN201310041617 A CN 201310041617A CN 103088661 A CN103088661 A CN 103088661A
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Abstract
The invention relates to a manufacturing method of low-resistivity PU synthetic leather. The method comprises the steps that: (a) a release paper is prepared, and unwinding is carried out; (b), a first layer of conductive polyurethane working slurry is scrape-coated; (c) drying is carried out; (d) a second layer of conductive polyurethane working slurry is scrape-coated; (e) pre-drying is carried out; (f) a bottom black is bonded, and drying is carried out; (g) the release paper is removed; and the like. According to the invention, a small amount of powdery conductive material is added into the synthetic leather dry-method coating, such that the resistivity of the PU leather is reduced. The surface resistance value of a product is lower than 1.4ohm/2cm. The product can be used in emerging fields such as antistatic leather, anti-radiation leather, conductive glove leather, and the like. Because the addition amount of the conductive material is not high, physical properties and texture of the PU leather are maintained to a maximal extent. Anti-wearing, anti-folding, and hydrolysis resistant properties are good. The product has a soft and elastic texture.
Description
Technical field
The invention belongs to the leather manufacturing field of closing, relate to a kind of manufacture method of PU synthetic leather, a kind of manufacture method of low-resistivity PU synthetic leather.
Background technology
In recent years, touch-screen mobile phone and hand touch screen panel computer begin the fashionable whole world, and along with further developing of this trend, this brand-new interactive mode of touch control is widely used in the every aspect of life.Yet the insulating effect that cold snap has gloves on because of gloves just can't use touch-screen, and therefore, the PU synthetic leather that can predict low-resistivity will be quite huge as the market demand of conductive glove leather.Recent years, people are to the radiation hazradial bundle pay attention to day by day, and some sensitive groups particularly as the staff of a large amount of radiation of contact in pregnant woman and work, grow with each passing day to the demand of exposure suit package material.In addition, the annual loss that causes multi-million dollar in productive life because of static according to reports, therefore, development electrostatic protection system has huge social effect and economic implications.Yet common PU synthetic leather goods have very high insulating properties, very easily produce static, and this has seriously limited its application in some important events.It is blank that the PU synthetic leather product of present high-grade low-resistivity still belongs at home.
Summary of the invention
The objective of the invention is to propose a kind of manufacture method of low-resistivity PU synthetic leather, make the PU synthetic leather have higher electrical conductivity, and keep higher mechanical property and good feel.
The manufacture method of this low-resistivity PU synthetic leather comprises the following steps:
(a) prepare release liners, unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin: 100 parts,
Solvent: 50 ~ 90 parts,
Conductive material powder: 3 ~ 9 parts,
Mill base: 0 ~ 20 part,
Levelling agent: 0.1 ~ 1 part,
Wetting agent: 0.1 ~ 1.5 part,
Other auxiliary agents: 0 ~ 3 part;
The work slurry viscosity is 2000 ~ 4000cps/25 ℃, and coating weight is 60 ~ 150g/m;
(c) oven dry, bake out temperature is 90 ℃ ~ 130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin: 100 parts,
Solvent: 40 ~ 80 parts,
Conductive material powder: 1 ~ 7 part,
Mill base: 0 ~ 20 part,
Levelling agent: 0.1 ~ 1 part,
Wetting agent: 0.1 ~ 1.5 part,
Other auxiliary agents: 0 ~ 3 part;
The work slurry viscosity is 3000 ~ 6000cps/25 ℃, and coating weight is 60 ~ 220g/m;
(e) prebake, prebake temperature are 70 ℃ ~ 90 ℃;
(f) applying end base, oven dry, temperature is 90 ℃ ~ 130 ℃;
(g) peel off release liners.
The manufacture method of this low-resistivity PU synthetic leather adopts on the basis of common synthetic leather dry process, adds the method for a small amount of conductive material powder in the synthetic leather dry coating, makes the resistivity decreased of PU leather, and the surface resistance value of product is less than 10
4Ω/2cm can be applied to the emerging fields such as antistatic leather, radioresistance leather, conductive glove leather.Because the conductive material addition is little, therefore kept to greatest extent physical property and the feel of PU leather, the performances such as wear-resisting, folding, hydrolysis are good, soft flexible.
The specific embodiment
The manufacture method of this low-resistivity PU synthetic leather comprises the following steps:
(a) prepare release liners, unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin: 100 parts,
Solvent: 50 ~ 90 parts,
Conductive material powder: 3 ~ 9 parts,
Mill base: 0 ~ 20 part,
Levelling agent: 0.1 ~ 1 part,
Wetting agent: 0.1 ~ 1.5 part,
Other auxiliary agents: 0 ~ 3 part;
The work slurry viscosity is 2000 ~ 4000cps/25 ℃, and coating weight is 60 ~ 150g/m;
(c) oven dry, bake out temperature is 90 ℃ ~ 130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin: 100 parts,
Solvent: 40 ~ 80 parts,
Conductive material powder: 1 ~ 7 part,
Mill base: 0 ~ 20 part,
Levelling agent: 0.1 ~ 1 part,
Wetting agent: 0.1 ~ 1.5 part,
Other auxiliary agents: 0 ~ 3 part;
The work slurry viscosity is 3000 ~ 6000cps/25 ℃, and coating weight is 60 ~ 220g/m;
(e) prebake, prebake temperature are 70 ℃ ~ 90 ℃;
(f) with conventional method applying end base, oven dry, bake out temperature is 90 ℃ ~ 130 ℃;
(g) peel off release liners.
In the manufacture method of this low-resistivity PU synthetic leather, in step (b), conductive material powder used can be one or several in natural flake graphite, expanded graphite powder, conductive black, graphite oxide or CNT, and the fineness of conductive material powder is 100～1000 orders; In step (d), conductive material powder used can be one or several in natural flake graphite, expanded graphite powder, conductive black, graphite oxide or CNT, and the fineness of conductive material powder is 100～1000 orders.
In the manufacture method of this low-resistivity PU synthetic leather, resin used in step (b) can be solvent borne polyurethane, can be the polyurethane resin of polyester-type, polyether-type or polycarbonate type, and the resin modulus is 3.0MPa ~ 15.0Mpa; Solvent used is DMF(N, dinethylformamide), EA(ethyl acetate) or one or several of butanone.
In the manufacture method of this low-resistivity PU synthetic leather, resin used in step (b) also can be aqueous polyurethane, and the resin modulus is 3.0MPa ~ 15.0Mpa; At this moment, solvent used is water.
In the manufacture method of this low-resistivity PU synthetic leather, resin used in step (d) can be solvent borne polyurethane, can be the polyurethane resin of polyester-type, polyether-type or polycarbonate type, and the resin modulus is 2.0MPa ~ 7.0Mpa; Solvent used is one or several of DMF, EA or butanone.
In the manufacture method of this low-resistivity PU synthetic leather, resin used in step (d) also can be aqueous polyurethane, and the resin modulus is 2.0MPa ~ 7.0Mpa; This moment, solvent used was water.
In the manufacture method of this low-resistivity PU synthetic leather, levelling agent used in step (b) and step (d) can be dimethyl silicone polymer or modified dimethyl polysiloxane; Wetting agent used in step (b) and step (d) also can be dimethyl silicone polymer or modified dimethyl polysiloxane; In step (b) and step (d), other auxiliary agents used can be one or several in fire retardant, antioxidant, antiwear assistant, hand feeling agent, crosslinking agent or thickener.
In the manufacture method of this low-resistivity PU synthetic leather, in step (f) end base used be woven fabric, knitted cloth or nonwoven fabric (for example: superfine fibre nonwoven cloth).Release liners used in step (a) can be the release liners of present synthetic leather industry all kinds used.
In the manufacture method of this low-resistivity PU synthetic leather, when release liners lines used is darker, can after completing steps (d), goods be dried 90 ℃ ~ 130 ℃ temperature, then blade coating the 3rd cutter conductive polyurethane work slurry, and then carry out step (e) operation; Formula and the coating weight of the 3rd cutter conductive polyurethane work slurry are identical with step (d).
In the manufacture method of this low-resistivity PU synthetic leather, after step (g) is peeled off release liners, can also increase postfinishing process, the PU synthetic leather be carried out rear arrangement process.Afterfinish method comprises the colding pressing of synthetic leather industry extensive use, hot pressing, printing, roller coat, sprays or rub the processing methods such as line.Also can not carry out rear arrangement, depending on product and technique needs.
Embodiment 1
(a) prepare release liners (release liners numbering: PWJ-130MZR-1), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-8080): 100 parts,
Solvent (DMF:EA=1:1): 80 parts,
Conductive material (natural flake graphite, fineness are 1000 orders): 9 parts,
Mill base: 0 part,
Levelling agent (DX-ACR): 0.5 part
Wetting agent (OT-70): 1.0 parts,
Other auxiliary agents: hand feeling agent (LS-50-104): 0.5 part;
The work slurry viscosity is 2500cps/25 ℃, and coating weight is 70g/m;
(c) oven dry, bake out temperature is 90 ℃-100 ℃-110 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-8030): 100 parts,
Solvent (DMF:EA=1:1): 70 parts,
Conductive material (natural flake graphite, fineness are 1000 orders): 5 parts,
Mill base: 0 part,
Levelling agent (DX-ACR): 0.3 part,
Wetting agent (OT-70): 0.8 part,
Other auxiliary agents: 0 part;
The work slurry viscosity is 3500cps/25 ℃, and coating weight is 150g/m;
(e) prebake, prebake temperature are 85 ℃;
(f) base at the bottom of applying knitted cloth wet method, oven dry, temperature is 90 ℃-100 ℃-110 ℃-120 ℃;
(g) peel off release liners, cold pressing.
Embodiment 2
(a) prepare release liners (PWJ-130MZR-1), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (TC-170): 100 parts,
Solvent (water): 50 parts,
Conductive material (expanded graphite powder, fineness are 300 orders): 8 parts,
Mill base: 0 part,
Levelling agent (YCK-1110): 1 part,
Wetting agent (LCN407): 1.3 parts,
Other auxiliary agents: thickener (4456): 1 part,
The work slurry viscosity is 2500cps/25 ℃, and coating weight is 60g/m;
(c) oven dry, bake out temperature is 90 ℃-100 ℃-120 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (AC-95): 100 parts,
Solvent (water): 80 parts,
Conductive material (expanded graphite powder, fineness are 100 orders): 4 parts,
Mill base (BLPE-503): 5 parts,
Levelling agent (YCK-1110): 0.9 part,
Wetting agent (LCN407): 0.8 part,
Other auxiliary agents: thickener (4456): 1 part;
The work slurry viscosity is 3000cps/25 ℃, and coating weight is 200g/m;
(e) prebake, prebake temperature are 90 ℃;
(f) the make-up machine base at the bottom of wet method of weaving cotton cloth, oven dry, temperature is 90 ℃-100 ℃-120 ℃-130 ℃;
(g) peel off release liners, cold pressing.
Embodiment 3
(a) prepare release liners (release liners numbering: EV130TPD R-61), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-6025): 100 parts,
Solvent (DMF: butanone=1: 1): 60 parts,
Conductive material (conductive black, fineness are 600 orders): 7 parts,
Mill base: 0 part,
Levelling agent (JFR-930): 0.3 part,
Wetting agent (S-11): 1.2 parts,
Other auxiliary agents: 0 part;
The work slurry viscosity is 3500cps/25 ℃, and coating weight is 120g/m;
(c) oven dry, bake out temperature is 90 ℃-100 ℃-130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-930G): 100 parts,
Solvent (DMF: butanone=1: 1): 70 parts,
Conductive material (conductive black, fineness are 200 orders): 6 parts,
Mill base (BLPP-509): 10 parts,
Levelling agent (JFR-930): 0.1 part,
Wetting agent (S-11): 1.5 parts,
Other auxiliary agents: 0 part;
The work slurry viscosity is 4000cps/25 ℃, and coating weight is 100g/m;
(e) oven dry, temperature is 90 ℃-110 ℃-130 ℃;
(f) blade coating the 3rd cutter conductive polyurethane work slurry, the formula of work slurry and coating weight are with (d);
(g) prebake, prebake temperature are 80 ℃;
(h) base at the bottom of applying 0.4mm superfine fibre, oven dry, temperature is 90 ℃-110-120-130 ℃;
(i) peel off release liners, printing.
Embodiment 4
(a) prepare release liners (release liners numbering: EV130TPD R-61), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (TC-69): 100 parts,
Solvent (water): 90 parts,
Conductive material (conductive black: expanded graphite powder=1:1, fineness is all 300 orders): 3 parts,
Mill base (BLPE-503): 20 parts,
Levelling agent (F-3): 0.8 part,
Wetting agent (BYK-346): 0.1 part,
Other auxiliary agents: thickener (Vesmody U300): 0.8 part,
Crosslinking agent (CL-80): 0.5 part;
The work slurry viscosity is 3500cps/25 ℃, and coating weight is 150g/m;
(c) oven dry, bake out temperature is 90 ℃-100 ℃-130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (TC-06): 100 parts,
Solvent (water): 40 parts,
Conductive material (conductive black: expanded graphite powder=1:1, fineness is all 300 orders): 1 part,
Mill base (BLPE-503): 10 parts,
Levelling agent (F-3): 0.1 part,
Wetting agent (BYK-346): 0.1 part,
Other auxiliary agents: thickener (Vesmody U300): 0.8 part,
Crosslinking agent (CL-80): 0.5 part;
The work slurry viscosity is 6000cps/25 ℃, and coating weight is 60g/m;
(e) oven dry, temperature is 90 ℃-115 ℃-130 ℃;
(f) blade coating the 3rd cutter conductive polyurethane work slurry, the formula of work slurry and coating weight are with (d);
(g) prebake, prebake temperature are 90 ℃;
(h) fit without base at the bottom of the wet method knitted cloth, oven dry, temperature is 90 ℃-110 ℃-120 ℃-130 ℃;
(i) peel off release liners, rub line.
Embodiment 5
(a) prepare release liners (release liners numbering AP-T DE123), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-1032): 100 parts,
Solvent (DMF:EA=1:1): 50 parts,
Conductive material (graphite oxide, fineness are 800 orders): 4 parts,
Mill base (BLPP-509): 15 parts,
Levelling agent (DX-ACR): 0.3 part,
Wetting agent (SD-80): 0.5 part,
Other auxiliary agents: hand feeling agent (LS-50-104): 0.5 part;
The work slurry viscosity is 4000cps/25 ℃, and coating weight is 150g/m;
(c) oven dry, bake out temperature is 90 ℃-110 ℃-130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-9530): 100 parts,
Solvent (DMF:EA=1:1): 40 parts,
Conductive material (the graphite oxide fineness is 400 orders): 1 part,
Mill base (BLPP-509): 15 parts,
Levelling agent (DX-ACR): 0.3 part,
Wetting agent (SD-80): 0.5 part,
Other auxiliary agents: 0 part;
The work slurry viscosity is 6000cps/25 ℃, and coating weight is 110g/m;
(e) oven dry, temperature is 90 ℃-120 ℃-130 ℃;
(f) blade coating the 3rd cutter conductive polyurethane work slurry, the formula of work slurry and coating weight are with (d);
(g) prebake, prebake temperature are 70 ℃;
(h) base at the bottom of the applying wet nonwoven fabrics, oven dry, temperature is 90 ℃-100 ℃-110 ℃-130 ℃;
(i) peel off release liners, rub line.
Embodiment 6
(a) prepare release liners (release liners numbering PWJ-130MZR-1), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-6050): 100 parts,
Solvent (DMF:EA=1:1): 80 parts,
Conductive material (CNT, fineness are 900 orders): 5 parts,
Mill base (BLPP-509): 15 parts,
Levelling agent (JFR-930): 0.1 part,
Wetting agent (OT-70): 0.6 part,
Other auxiliary agents: 0 part;
The work slurry viscosity is 2500cps/25 ℃, and coating weight is 120g/m;
(c) oven dry, bake out temperature is 90 ℃-110 ℃-130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-1002): 100 parts,
Solvent (DMF:EA=1:1): 80 parts,
Conductive material (expanded graphite powder: graphite oxide=1:1, fineness is 300 orders): 5 parts,
Mill base (BLPP-509): 16 parts,
Levelling agent (JFR-930): 0.1 part,
Wetting agent (OT-70): 0.5 part,
Other auxiliary agents: 0 part;
The work slurry viscosity is 4000cps/25 ℃, and coating weight is 220g/m;
(e) prebake, prebake temperature are 70 ℃;
(f) fit without base at the bottom of the wet method woven fabric, oven dry, temperature is 90 ℃-110 ℃-110 ℃-130 ℃;
(g) peel off release liners, cold pressing.
Embodiment 7
(a) prepare release liners (release liners numbering: BNS B251VENEZIA), unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-8080): 100 parts,
Solvent (DMF:EA=1:1): 65 parts,
Conductive material (CNT: conductive black=1:1, fineness is all 300 orders): 4.5 parts,
Mill base (BLPP-509): 14 parts,
Levelling agent (DX-ACR): 0.3 part,
Wetting agent (SD-80): 0.5 part,
Other auxiliary agents: hand feeling agent (LS-50-104): 0.5 part;
The work slurry viscosity is 3500cps/25 ℃, and coating weight is 100g/m;
(c) oven dry, bake out temperature is 90 ℃-110 ℃-130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin (HX-930G): 100 parts,
Solvent (DMF:EA=1:1): 55 parts,
Conductive material (graphite: conductive black=1:1): 3.5 parts,
Mill base (BLPP-509): 14 parts,
Levelling agent (DX-ACR): 0.2 part,
Wetting agent (SD-80): 0.2 part,
Other auxiliary agents: 0 part;
The work slurry viscosity is 4500cps/25 ℃, and coating weight is 100g/m;
(e) oven dry, temperature is 90 ℃ ~ 130 ℃;
(f) blade coating the 3rd cutter conductive polyurethane work slurry, the formula of work slurry and coating weight are with (d);
(g) prebake, prebake temperature are 75 ℃;
(h) base at the bottom of applying wet method knitted cloth, oven dry, temperature is 90 ℃-100 ℃-120 ℃-130 ℃;
(i) peel off release liners, rub line.
The test result of above-mentioned 7 embodiment products is as shown in table 1:
Table 1 test result relatively
Surface resistance value in table refers to that synthetic leather is surperficial at a distance of the resistance value between two points of 2cm, measures with universal meter.
Raw material sources explanation in above-described embodiment:
One, solvent type polyurethane resin: HX-8080(modulus 8MPa, polyester-type), HX-8030(modulus 3MPa, polyester-type), HX-930G(modulus 3MPa, polyester-type), HX-6025(modulus 2.5MPa, poly-carbon type), HX-1032(modulus 8MPa, polyether-type), HX-9530(modulus 2.5MPa, polyester-type), HX-6050(modulus 5MPa, polyether-type), HX-1002(modulus 3MPa, polyester-type), making the commercial city is the glad chemical industry of standing grain Co., Ltd, and the place of production is Jiaxing.
Two, waterborne polyurethane resin: TC-170(modulus 7MPa, polyester-type), AC-95(modulus 3MPa, polyether-type), TC-69(modulus 7MPa, poly-carbon type), TC-06(modulus 4MPa, poly-carbon type) and, the manufacturing commercial city is Clariant, the place of production: Germany.
Three, oily wax hand feeling agent LS-50-104 is a kind of organosilicon and modified organic silicon mixture, manufacturer: stahl, the place of production: Holland; Vesmody U300 is aqueous polyurethane thickener, and manufacturer is Yantai ten thousand magnificent polyurethane Co., Ltd, and the place of production is Yantai, Shandong; CL-80 is isocyanate-based aqueous polyurethane crosslinking agent, and manufacturer is Clariant, and the place of production is Germany.
Four, conductive material: natural flake graphite (fineness is 1000 orders) is Xinghe, Qingdao graphite Co., Ltd with the manufacturer of expanded graphite powder (fineness is 300 orders and 100 orders), and the place of production is Qingdao; The manufacturer of conductive black (fineness is 300 orders) is Dongguan City Qi Deli Chemical Industry Science Co., Ltd, the place of production: Dongguan; The manufacturer of graphite oxide (fineness is 400 orders and 800 orders) is Nanjing Xian Feng nanosecond science and technology Co., Ltd, and the place of production is Nanjing; The manufacturer of CNT (fineness is 300 orders and 900 orders) is Suzhou prompt enlightening nanosecond science and technology Co., Ltd, and the place of production is Suzhou.
Five, OT-70 is anion surfactant class wetting agent, and SD-80 and S-11 are the nonionic surfactants wetting agent; The manufacturer of OT-70 and SD-80 is Sanhe City prosperous auxiliary chemicals forever Co., Ltd, and the place of production is the Sanhe City; The manufacturer of S-11 is Shanghai day in-depth work Co., Ltd, and the place of production is Shanghai; YCK-1110 is the modified dimethyl polysiloxane surfactant, and firm the digesting in Shanghai learned Co., Ltd, and the place of production is Shanghai; LCN-407 is, Clariant, and the place of production is Germany; BYK-346 is the dimethyl silicone polymer surface activating agent, German Bi Ke chemistry Industrial Co., Ltd, and the place of production be German.
Six, DX-ACR, JFR-930, F-3 are dimethyl silicone polymer class levelling agent; The manufacturer of DX-ACR is Dexing, Jinhu County Fine Chemical Works, the place of production is the Jinhu County, and the manufacturer of JFR-930 is Jiaxing Jia Feng weaving chemical industry Co., Ltd, and the place of production is Jiaxing, the manufacturer of F-3 is the excellent Nike chemical industry of Lishui of Zhejiang Co., Ltd, and the place of production is Lishui of Zhejiang.
Seven, PWJ-130MZR-1 is U.S.'s release liners, and EV130TPD R-61 is Japanese release liners, and AP-T DE123 is Japanese release liners, and BNS B251VENEZIA is Italian release liners, and above release liners is all purchased from Shanghai can help trade Co., Ltd.
Claims (10)
1. the manufacture method of a low-resistivity PU synthetic leather is characterized in that comprising the following steps:
(a) prepare release liners, unreel;
(b) blade coating the first cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin: 100 parts,
Solvent: 50 ~ 90 parts,
Conductive material powder: 3 ~ 9 parts,
Mill base: 0 ~ 20 part,
Levelling agent: 0.1 ~ 1 part,
Wetting agent: 0.1 ~ 1.5 part,
Other auxiliary agents: 0 ~ 3 part;
The work slurry viscosity is 2000 ~ 4000cps/25 ℃, and coating weight is 60 ~ 150g/m;
(c) oven dry, bake out temperature is 90 ℃ ~ 130 ℃;
(d) blade coating the second cutter conductive polyurethane work slurry, the formula of work slurry is in mass:
Resin: 100 parts,
Solvent: 40 ~ 80 parts,
Conductive material powder: 1 ~ 7 part,
Mill base: 0 ~ 20 part,
Levelling agent: 0.1 ~ 1 part,
Wetting agent: 0.1 ~ 1.5 part,
Other auxiliary agents: 0 ~ 3 part;
The work slurry viscosity is 3000 ~ 6000cps/25 ℃, and coating weight is 60 ~ 220g/m;
(e) prebake, prebake temperature are 70 ℃ ~ 90 ℃;
(f) applying end base, oven dry, temperature is 90 ℃ ~ 130 ℃;
(g) peel off release liners.
2. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1, it is characterized in that conductive material powder used in step (b) is one or several in natural flake graphite, expanded graphite powder, conductive black, graphite oxide or CNT, the fineness of conductive material powder is 100～1000 orders; In step (d), conductive material powder used is one or several in natural flake graphite, expanded graphite powder, conductive black, graphite oxide or CNT, and the fineness of conductive material powder is 100～1000 orders.
3. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that resin used in step (b) is solvent borne polyurethane, and the resin modulus is 3.0MPa ~ 15.0Mpa; Solvent used is one or several in DMF, EA or butanone.
4. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that resin used in step (b) is aqueous polyurethane, and the resin modulus is 3.0MPa ~ 15.0Mpa; Solvent used is water.
5. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that resin used in step (d) is solvent borne polyurethane, and the resin modulus is 2.0MPa ~ 7.0Mpa; Solvent used is one or several of DMF, EA or butanone.
6. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that resin used in step (d) is aqueous polyurethane, and the resin modulus is 2.0MPa ~ 7.0Mpa; Solvent used is water.
7. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that levelling agent used in step (b) and step (d) is dimethyl silicone polymer or modified dimethyl polysiloxane; Wetting agent used in step (b) and step (d) is dimethyl silicone polymer or modified dimethyl polysiloxane; In step (b) and step (d), other auxiliary agents used are one or several in fire retardant, antioxidant, antiwear assistant, hand feeling agent, crosslinking agent or thickener.
8. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that end base used in step (f) is woven fabric, knitted cloth or nonwoven fabric.
9. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that after completing steps (d), goods are dried 90 ℃ ~ 130 ℃ temperature, then blade coating the 3rd cutter conductive polyurethane work slurry, and then carry out step (e) operation; Formula and the coating weight of the 3rd cutter conductive polyurethane work slurry are identical with step (d).
10. the manufacture method of low-resistivity PU synthetic leather as claimed in claim 1 or 2, is characterized in that after step (g) is peeled off release liners, the PU synthetic leather carried out rear arrangement process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100416173A CN103088661A (en) | 2013-01-30 | 2013-01-30 | Manufacturing method of low-resistivity PU synthetic leather |
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| CN103266497A (en) * | 2013-05-27 | 2013-08-28 | 曾皓 | Environment-friendly charcoal polyurethane (PU) artificial leather and preparation method thereof |
| CN103541059A (en) * | 2013-09-28 | 2014-01-29 | 安徽省尚美精密机械科技有限公司 | Low-resistance spinning rubber roll and manufacturing method thereof |
| CN103709724A (en) * | 2013-12-23 | 2014-04-09 | 中纺新材料科技有限公司 | Carbon-polyurethane-base resistive film and preparation method thereof |
| CN103866580A (en) * | 2014-03-04 | 2014-06-18 | 合肥市安山涂层织物有限公司 | Preparation method of anti-static artificial synthetic leather |
| CN104193951A (en) * | 2014-08-05 | 2014-12-10 | 嘉兴禾欣化学工业有限公司 | Preparation method of antistatic polyurethane resin for synthetic leather |
| CN104292809A (en) * | 2014-10-25 | 2015-01-21 | 合肥市安山涂层织物有限公司 | Antistatic synthetic leather sizing agent and preparation method thereof |
| CN105002737A (en) * | 2015-06-29 | 2015-10-28 | 周波香 | Preparation method of moistureproof anti-ageing synthetic leather slurry |
| CN105421096A (en) * | 2016-01-08 | 2016-03-23 | 昆山华富新材料股份有限公司 | Polyurethane synthetic leather having electrical conductivity and preparation method thereof |
| 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 |
| CN105507015A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Artificial leather for carbon nano tube reinforced adsorption type environment-friendly automotive upholstery and preparation method thereof |
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| CN105507010A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Anti-abrasion micro-fiber polyurethane artificial leather suitable for producing automobile-seat fabric and preparing method of anti-abrasion micro-fiber polyurethane artificial leather |
| CN105507008A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Low-cost high-quality imitation leather automobile interior material added with waste polyurethane and preparation method thereof |
| CN105507005A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Flame-retardant impact-resistant ultrafine fiber polyurethane synthetic leather for automobile interior trim and preparation method of synthetic leather |
| CN105507007A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | High-strength washable imitation leather car seat cushion material and preparation method thereof |
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| CN105525511A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Hydroxyapatite strength enhancement based microfiber polyurethane man-made automobile leather and preparation method thereof |
| CN108727965A (en) * | 2018-05-17 | 2018-11-02 | 合肥科天水性科技有限责任公司 | A kind of preparation method of electromagnetic masking aqueous polyurethane leather |
| CN109349707A (en) * | 2018-12-06 | 2019-02-19 | 昆山协孚新材料股份有限公司 | A kind of conductive glove leather and its production method |
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| CN103266497A (en) * | 2013-05-27 | 2013-08-28 | 曾皓 | Environment-friendly charcoal polyurethane (PU) artificial leather and preparation method thereof |
| CN103541059A (en) * | 2013-09-28 | 2014-01-29 | 安徽省尚美精密机械科技有限公司 | Low-resistance spinning rubber roll and manufacturing method thereof |
| CN103709724B (en) * | 2013-12-23 | 2016-05-25 | 中纺新材料科技有限公司 | A kind of carbon is polyurethane-base resistive film and preparation method thereof |
| CN103709724A (en) * | 2013-12-23 | 2014-04-09 | 中纺新材料科技有限公司 | Carbon-polyurethane-base resistive film and preparation method thereof |
| CN103866580A (en) * | 2014-03-04 | 2014-06-18 | 合肥市安山涂层织物有限公司 | Preparation method of anti-static artificial synthetic leather |
| CN103866580B (en) * | 2014-03-04 | 2016-06-15 | 合肥市安山涂层织物有限公司 | A kind of antistatic artificial synthetic leather manufacture method |
| CN104193951A (en) * | 2014-08-05 | 2014-12-10 | 嘉兴禾欣化学工业有限公司 | Preparation method of antistatic polyurethane resin for synthetic leather |
| CN104193951B (en) * | 2014-08-05 | 2016-08-17 | 嘉兴禾欣化学工业有限公司 | The preparation method of use for synthetic leather antistatic polyurethane resin |
| CN104292809A (en) * | 2014-10-25 | 2015-01-21 | 合肥市安山涂层织物有限公司 | Antistatic synthetic leather sizing agent and preparation method thereof |
| CN105002737A (en) * | 2015-06-29 | 2015-10-28 | 周波香 | Preparation method of moistureproof anti-ageing synthetic leather slurry |
| 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 |
| CN105421096A (en) * | 2016-01-08 | 2016-03-23 | 昆山华富新材料股份有限公司 | Polyurethane synthetic leather having electrical conductivity and preparation method thereof |
| CN105504773A (en) * | 2016-01-08 | 2016-04-20 | 昆山华富新材料股份有限公司 | Polyurethane film with electrical conductivity and preparation method thereof |
| CN105507016A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Weather-proof and aging-resistant composite polyurethane artificial leather for automobile interiors and preparation method of artificial leather |
| CN105507015A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Artificial leather for carbon nano tube reinforced adsorption type environment-friendly automotive upholstery and preparation method thereof |
| CN105507006A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Micro-fiber polyurethane imitation leather automotive interior material modified by means of silica sol/soybean protein and preparation method thereof |
| CN105507009A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Slow-springback and bending-resistance micro-fiber polyurethane automobile interior leather and preparation method thereof |
| CN105507005A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Flame-retardant impact-resistant ultrafine fiber polyurethane synthetic leather for automobile interior trim and preparation method of synthetic leather |
| CN105525511A (en) * | 2016-01-26 | 2016-04-27 | 芜湖环瑞汽车内饰件有限公司 | Hydroxyapatite strength enhancement based microfiber polyurethane man-made automobile leather and preparation method thereof |
| CN105507007A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | High-strength washable imitation leather car seat cushion material and preparation method thereof |
| CN105507008A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Low-cost high-quality imitation leather automobile interior material added with waste polyurethane and preparation method thereof |
| CN105507010A (en) * | 2016-01-26 | 2016-04-20 | 芜湖环瑞汽车内饰件有限公司 | Anti-abrasion micro-fiber polyurethane artificial leather suitable for producing automobile-seat fabric and preparing method of anti-abrasion micro-fiber polyurethane artificial leather |
| CN108727965A (en) * | 2018-05-17 | 2018-11-02 | 合肥科天水性科技有限责任公司 | A kind of preparation method of electromagnetic masking aqueous polyurethane leather |
| CN109349707A (en) * | 2018-12-06 | 2019-02-19 | 昆山协孚新材料股份有限公司 | A kind of conductive glove leather and its production method |
| CN110670375A (en) * | 2019-09-19 | 2020-01-10 | 昆山协孚新材料股份有限公司 | Environment-friendly conductive synthetic leather for labor protection gloves and production process thereof |
| CN110670375B (en) * | 2019-09-19 | 2022-07-19 | 江苏协孚新材料科技有限公司 | Environment-friendly conductive synthetic leather for labor protection gloves |
| CN114318893A (en) * | 2021-12-31 | 2022-04-12 | 石狮市中纺学服装及配饰产业研究院 | Antistatic finishing agent and application thereof to chemical fiber fabric |
| CN114318893B (en) * | 2021-12-31 | 2023-08-25 | 石狮市中纺学服装及配饰产业研究院 | Antistatic finishing agent and application thereof to chemical fiber fabric |
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