CN103993482B - A kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth and manufacture method thereof - Google Patents

A kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth and manufacture method thereof Download PDF

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Publication number
CN103993482B
CN103993482B CN201410191080.3A CN201410191080A CN103993482B CN 103993482 B CN103993482 B CN 103993482B CN 201410191080 A CN201410191080 A CN 201410191080A CN 103993482 B CN103993482 B CN 103993482B
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aqueous polyurethane
flame
superfine fiber
retardant
synthetic leather
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CN201410191080.3A
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Chinese (zh)
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CN103993482A (en
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马兴元
郭梦亚
邱啸寒
张浩然
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陕西科技大学
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Abstract

The present invention relates to superfine fibre technical field of composite materials, be specifically related to a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth and manufacture method thereof.Flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth of the present invention, comprises phosphatide fatting agent and aqueous polyurethane flame-retardant slurry dipping dry tangerine lobe type bi-component not weaving fabric of superfine fiber base material that service property (quality) concentration is successively 5 ~ 15%.Manufacture method of the present invention with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, adopt and flood complex technique twice, polytype fire retardant and base material are combined with each other, obtain a kind of aqueous polyurethane superfine fiber synthetic leather base cloth with anti-flaming function.The anti-flammability of this base cloth can reach american car material FMVSS302 flame-retardant test criteria, be mainly used in the manufacture of home decoration superfine fiber chemical leather and automotive trim superfine fiber chemical leather, for tangerine lobe type bi-component not weaving fabric of superfine fiber develops the Application Areas made new advances.

Description

A kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth and manufacture method thereof

Technical field

The present invention relates to superfine fibre technical field of composite materials, be specifically related to a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth and manufacture method thereof.

Background technology

Twentieth century forties can be traced back in the source of fiber fine research, and what utilize synthetic fiber successfully to make composite fibre industrialization at first is the E.I.Du Pont Company of the U.S..

The companies such as between 1962-1965, toray, clock spin, Supreme Being people, Kuraray utilize respective method successfully to produce the superfine fibre differed from one another.Such as, the various composite fibre such as multi-core type, wood grain type, radial pattern, hollow radial pattern is developed.

Enter the eighties of last century later stage seventies, Dong Li company is therefrom subject to inspiration by analysis natural fabric and produces very uniform fibre technology.After the eighties, the characteristic that superfine fibre is good is subject to the favor of consumer, forms the Artificial Chamois Leather heat of today.

After having arrived eighties of last century nineties, many companies have released the fine denier filaments such as polyester, polyamide, polyacrylonitrile and polypropylene one after another in the world.Also there is the noun such as " fine count fiber ", " microfibre ", " superfine fibre " simultaneously, but there is no the unified definition about fine count fiber so far in the world.In the last few years, monofilament linear density was generally called superfine fibre lower than the fiber of 0.3dtex by Japanese chemical fibre industry.

Superfine fibre is because it, than traditional fiber finer, so have more fluffy, soft sense of touch than general fiber, and can overcome easy wrinkle, the air-locked shortcoming of artificial fibre of natural fabric.In addition, many excellent specific properties that can not be substituted such as it also has warming, not mouldy, free from insect pests, light weight, waterproof even absorb water.

The purposes of superfine fibre is more and more extensive, and is progressively applied in the aspects such as senior clad material, medical protective material, fine filtering material, senior polishing material.

Tangerine lobe type bi-component superfine fibre can adopt water thorn, needling process produces non-weaving cloth.At present in China, tangerine lobe type bi-component micro staple fiber non-weaving cloth is mainly used in cleaning products, and the non-weaving cloth of the tangerine lobe bicomponent filament procedure of fibre production of top grade, then for leather base fabric, produces clothes and glove leather etc.

Summary of the invention

The object of the present invention is to provide and a kind ofly there is good flame-retardance energy and the flame-retardant aqueous polyurethane superfine fiber chemical leather of environmental protection and manufacture method thereof, for tangerine lobe type bi-component not weaving fabric of superfine fiber develops the Application Areas made new advances.

For achieving the above object, the present invention is by the following technical solutions:

Flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises phosphatide fatting agent and aqueous polyurethane flame-retardant slurry dipping dry tangerine lobe type bi-component not weaving fabric of superfine fiber base material that service property (quality) concentration is successively 5 ~ 15%; Described aqueous polyurethane flame-retardant slurry comprises: calculate with weight of material number, aqueous polyurethane 30 ~ 50 parts, 3 ~ 5 parts, aluminium hydroxide, magnesium hydroxide 5 ~ 10 and APP 2 ~ 4 parts.

The manufacture method of flame-retardant aqueous polyurethane superfine fiber chemical leather provided by the invention comprises the following steps: 1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, service property (quality) concentration is that the phosphatide fatting agent of 5 ~ 15% is to base material impregnation process, and control that pickup is substrate weight 30 ~ 50%, then dry process;

2) by step 1) dried base material uses aqueous polyurethane flame-retardant slurry dipping, and control that pickup is substrate weight 50 ~ 80%, then dry process, obtains flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth;

Described aqueous polyurethane flame-retardant slurry comprises, with weight parts, and aqueous polyurethane 30 ~ 50 parts, 3 ~ 5 parts, aluminium hydroxide, magnesium hydroxide 5 ~ 10 parts and APP 2 ~ 4 parts.

Further, step 1) described phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification.

Further, described phosphatide fatting agent is phosphatide fatting agent LZ507.

Further, step 2) described aqueous polyurethane is aq. polyurethane, solid content is 30%.

Further, step 2) described aluminium hydroxide and magnesium hydroxide fineness be greater than 400 orders.

Further, step 2) described APP to be the degree of polymerization be 1000 ~ 1500 APP.

Further, step 1) and 2) temperature of described drying is 105 ~ 150 DEG C.

Further, be immersed in described in dipping tank and carry out.

Compared with prior art, product provided by the invention has following useful technique effect: by with tangerine lobe type bi-component not weaving fabric of superfine fiber for flame retardant type synthetic leather prepared by base material, for tangerine lobe type bi-component not weaving fabric of superfine fiber develops the Application Areas made new advances, the anti-flammability of product of the present invention can reach american car material FMVSS302 flame-retardant test criteria.And because product provided by the invention uses aqueous polyurethane flame-retardant slurry to flood, so have good environment protecting, can be used for the manufacture of home decoration superfine fiber chemical leather and automotive trim superfine fiber chemical leather.

Compared with prior art, preparation method provided by the invention has following useful technique effect: one, step 1) dipping employing phosphate fat-liquoring agent, can outside the fiber of tangerine lobe type bi-component not weaving fabric of superfine fiber coated one deck phosphatide fatting agent, the bonding of aqueous polyurethane flame-retardant slurry and fiber can be stoped on the one hand, thus prevent base cloth hardening, phosphatide fatting agent is phosphorous fatting agent on the other hand, inherently there is certain fire resistance, the anti-flammability that base cloth is certain can be given; Two, step 2) flood the aqueous polyurethane flame-retardant slurry adopting and be made up of aqueous polyurethane, aluminium hydroxide, magnesium hydroxide and APP, wherein aqueous polyurethane is as adhesive, in the base material other material can fixed, and aluminium hydroxide, magnesium hydroxide and APP have good cooperative flame retardant effect.

Detailed description of the invention

A kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises phosphatide fatting agent and aqueous polyurethane flame-retardant slurry dipping dry tangerine lobe type bi-component not weaving fabric of superfine fiber base material that working concentration is successively 5 ~ 15%; Aqueous polyurethane flame-retardant slurry comprises: calculate with weight of material number, aqueous polyurethane 30 ~ 50 parts, 3 ~ 5 parts, aluminium hydroxide, magnesium hydroxide 5 ~ 10 and APP 2 ~ 4 parts.The anti-flammability of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth can reach american car material FMVSS302 flame-retardant test criteria, is mainly used in the manufacture of home decoration superfine fiber chemical leather and automotive trim superfine fiber chemical leather.

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 5 ~ 15%, after abundant dipping, controlling pickup by roll is 30 ~ 50% of nonwoven sheet weight, and fully dry at the temperature of 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, can adopt the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 50 ~ 80% of substrate weight, then fully dry at the temperature of 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 30 ~ 50 parts, 3 ~ 5 parts, aluminium hydroxide, magnesium hydroxide 5 ~ 10 parts and APP 2 ~ 4 parts of Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the products such as use for synthetic leather resin KTC710, KTC711, KTC712 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.Tangerine lobe type bi-component not weaving fabric of superfine fiber can adopt in Langfang the tangerine lobe type bi-component not weaving fabric of superfine fiber spinning Singapore dollar non-woven material Co., Ltd.

Below in conjunction with embodiment, the present invention is described further.

Embodiment 1

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 5%, fully after dipping, controlling pickup by roll is 30% of nonwoven sheet weight, and fully dry at 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, adopts the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 50% of substrate weight, then fully dry between 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 30 parts, 3 parts, aluminium hydroxide, magnesium hydroxide 5 and APP 2 Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the use for synthetic leather resin KTC710 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.

Embodiment 2

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 15%, after abundant dipping, controlling pickup by roll is 50% of nonwoven sheet weight, and fully dry at 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, adopts the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 80% of substrate weight, then fully dry between 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 50 parts, 10 parts, aluminium hydroxide, magnesium hydroxide 10 parts and APP 4 parts of Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the use for synthetic leather resin KTC710 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.

Embodiment 3

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 8%, after abundant dipping, controlling pickup by roll is 35% of nonwoven sheet weight, and fully dry at the temperature of 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, can adopt the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 80% of substrate weight, then fully dry at the temperature of 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 40 parts, 3 parts, aluminium hydroxide, magnesium hydroxide 9 parts and APP 2 Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the products such as use for synthetic leather resin KTC710, KTC711, KTC712 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.Tangerine lobe type bi-component not weaving fabric of superfine fiber can adopt in Langfang the tangerine lobe type bi-component not weaving fabric of superfine fiber spinning Singapore dollar non-woven material Co., Ltd.

Embodiment 4

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 10%, after abundant dipping, controlling pickup by roll is 45% of nonwoven sheet weight, and fully dry at the temperature of 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, can adopt the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 60% of substrate weight, then fully dry at the temperature of 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 45 parts, 5 parts, aluminium hydroxide, magnesium hydroxide 5 parts and APP 3 parts of Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the products such as use for synthetic leather resin KTC710, KTC711, KTC712 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.Tangerine lobe type bi-component not weaving fabric of superfine fiber can adopt in Langfang the tangerine lobe type bi-component not weaving fabric of superfine fiber spinning Singapore dollar non-woven material Co., Ltd.

Embodiment 5

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 13%, after abundant dipping, controlling pickup by roll is 40% of nonwoven sheet weight, and fully dry at the temperature of 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, can adopt the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 70% of substrate weight, then fully dry at the temperature of 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 35 parts, 4 parts, aluminium hydroxide, magnesium hydroxide 7 parts and APP 4 parts of Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the products such as use for synthetic leather resin KTC710, KTC711, KTC712 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.Tangerine lobe type bi-component not weaving fabric of superfine fiber can adopt in Langfang the tangerine lobe type bi-component not weaving fabric of superfine fiber spinning Singapore dollar non-woven material Co., Ltd.

Embodiment 6

The manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth provided by the invention, comprises the following steps:

1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, by being equipped with the dipping tank that mass concentration is the phosphatide fatting agent of 15%, after abundant dipping, controlling pickup by roll is 30% of nonwoven sheet weight, and fully dry at the temperature of 105 ~ 150 DEG C; Wherein phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification, can adopt the phosphatide fatting agent LZ507 of Jiangmen city BEST Fine Chemical Works.

2) by step 1) dried base material fully flooded by the dipping tank that aqueous polyurethane flame-retardant slurry is housed, controlling pickup by roll is 50% of substrate weight, then fully dry at the temperature of 105 ~ 150 DEG C, obtain flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth; Aqueous polyurethane flame-retardant slurry is: with weight parts, and aqueous polyurethane 50 parts, 3 parts, aluminium hydroxide, magnesium hydroxide 10 parts and APP 3 parts of Homogeneous phase mixing are obtained.

Wherein aqueous polyurethane is aq. polyurethane, and solid content is 30%, adopts the products such as use for synthetic leather resin KTC710, KTC711, KTC712 of Ketian Chemical Co., Ltd., Hefei City.Aluminium hydroxide and magnesium hydroxide are industrial goods, and fineness is greater than 400 orders.APP is the APP of the degree of polymerization 1000 ~ 1500, adopts Fauna of Kunshan, Jiangsu gold according to the APPII type high polymerization degree APP fire retardant of female fire proofing Co., Ltd.Tangerine lobe type bi-component not weaving fabric of superfine fiber can adopt in Langfang the tangerine lobe type bi-component not weaving fabric of superfine fiber spinning Singapore dollar non-woven material Co., Ltd.

Claims (9)

1. a flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth, is characterized in that, comprises phosphatide fatting agent and aqueous polyurethane flame-retardant slurry dipping dry tangerine lobe type bi-component not weaving fabric of superfine fiber base material that service property (quality) concentration is successively 5 ~ 15%; Described aqueous polyurethane flame-retardant slurry comprises: calculate with weight of material number, aqueous polyurethane 30 ~ 50 parts, 3 ~ 5 parts, aluminium hydroxide, magnesium hydroxide 5 ~ 10 parts and APP 2 ~ 4 parts.
2. a manufacture method for flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth, is characterized in that, comprises the following steps:
1) with tangerine lobe type bi-component not weaving fabric of superfine fiber for base material, service property (quality) concentration be the phosphatide fatting agent of 5 ~ 15% to base material impregnation process, and control that pickup is substrate weight 30 ~ 50%, then dry process;
2) by step 1) dried base material uses aqueous polyurethane flame-retardant slurry dipping, and control that pickup is substrate weight 50 ~ 80%, then dry process, obtains flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth;
Described aqueous polyurethane flame-retardant slurry comprises, with weight parts, and aqueous polyurethane 30 ~ 50 parts, 3 ~ 5 parts, aluminium hydroxide, magnesium hydroxide 5 ~ 10 parts and APP 2 ~ 4 parts.
3. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 2, is characterized in that, step 1) described phosphatide fatting agent is soybean lecithin fatting agent or the modified lecithin fatting agent of modification.
4. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 3, it is characterized in that, described phosphatide fatting agent is phosphatide fatting agent LZ507.
5. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 2, is characterized in that, step 2) described aqueous polyurethane is aq. polyurethane, solid content is 30%.
6. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 2, is characterized in that, step 2) described aluminium hydroxide and magnesium hydroxide fineness be greater than 400 orders.
7. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 2, is characterized in that, step 2) described APP to be the degree of polymerization be 1000 ~ 1500 APP.
8. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 2, is characterized in that, step 1) and 2) temperature of described drying is 105 ~ 150 DEG C.
9. the manufacture method of a kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth according to claim 2, is characterized in that, described in be immersed in dipping tank and carry out.
CN201410191080.3A 2014-05-07 2014-05-07 A kind of flame-retardant aqueous polyurethane superfine fiber synthetic leather base cloth and manufacture method thereof CN103993482B (en)

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