CN103205901A - Burnt discoloration synthetic leather and preparation method thereof - Google Patents
Burnt discoloration synthetic leather and preparation method thereof Download PDFInfo
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- CN103205901A CN103205901A CN2013101188070A CN201310118807A CN103205901A CN 103205901 A CN103205901 A CN 103205901A CN 2013101188070 A CN2013101188070 A CN 2013101188070A CN 201310118807 A CN201310118807 A CN 201310118807A CN 103205901 A CN103205901 A CN 103205901A
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Abstract
The invention relates to a burnt discoloration synthetic leather. A preparation method of the burnt discoloration synthetic leather comprises the following steps of: coating a washing burnt discoloration resin on a dry-method and wet-method synthetic leather or a non-woven fabric, wherein the washing burnt discoloration resin comprises the following components in percentage by weight: 30%-50% of polyurethane resin, 1%-3% of silica matting powder, 8%-12% of micronized wax powder, 0.5%-3% of a plasticizer, 0.5%-2% of an organosilicone feeling agent, 10%-30% of butyl acetate and 20%-40% of N,N-dimethylformamide; rubbing the synthetic leather or the fabric with water to remove the micronized wax powder to form a surface layer of a cellular structure; and baking the leather or the fabric, then burning and embossing the leather or the fabric to prepare the burnt discoloration synthetic leather. The burnt discoloration resin has good physical characters, wearing resistance, scratch resistance and an excellent visual effect, and can be widely applied to occasions of shoes and cases with high requirements on the performance of synthetic leather.
Description
Technical field
The present invention relates to the synthetic leather field, particularly a kind of branding variable color synthetic leather and preparation method thereof.
Technical background
Synthetic Leather is as the substitute of corium, and cost is lower, has approached on the performance or has surpassed similar corium product, therefore is widely used in every field such as clothes, case and bag, footwear and household.Along with the raising of people's living standard and aesthetic standards, the synthetic leather product of traditional single pattern can not satisfy people's needs.The outward appearance and the texture that improve synthetic leather by finishing have become requisite means in the synthetic leather production process.The branding variable color refers to make the synthetic leather surface discolouration with the mould of certain pattern by the high temperature compacting, is formed with the space pattern of burnt sense, and formed clear patterns contrast is big, and third dimension is arranged, and therefore is widely used in case and bag footwear and occasions such as trade mark label and external packing.
Existing common branding synthetic leather product adopts wet-method synthetic leather usually, utilizes the foam structure of wet-method synthetic leather to make its piezochromism.But wet-method synthetic leather has inborn weak point, adopts wet-method synthetic leather as branding synthetic leather product following shortcoming to be arranged:
1) wet-method synthetic leather wherein contains fillers such as a large amount of wood powders, and be open foam structure, cause its intensity low, wear-resisting scratch resistance poor performance, generally use as the intermediate layer of synthetic leather, as using separately as branding variable color synthetic leather, when occasions such as the footwear that are applied to the synthetic leather rerum natura is had relatively high expectations and case and bag, be difficult to reach requirement.2) technology of common wet method branding synthetic leather production has determined its color and surface detail more single, can not satisfy higher esthetic requirement.3) common wet method brands fillers such as containing more wood powder in the synthetic leather, causes the burnt sense in branding position not enough.
Because above-mentioned shortcoming, common wet method branding synthetic leather is used for packing, the occasions that rerum natura is less demanding and pattern is more single such as trade mark label mostly.
In addition, the preparation principle of branding variable color synthetic leather is by mould heat pressure, and the Synthetic Leather that will have special foam structure flattens, form the space pattern of depression, simultaneously sunk part darkens owing to be heated and the acting in conjunction of abscess compacting, shows the effect of branding.Usually the Synthetic Leather of foam structure is to adopt wet-method synthetic leather, wet-method synthetic leather is the metathesis by water in process of production, with the N in the polyurethane resin, dinethylformamide (DMF) cements out from synthetic leather, has formed special foam structure.But generally for the synthesis of the intermediate layer of leather, its intensity is relatively poor, is difficult to direct use for wet-method synthetic leather.
Summary of the invention
At the deficiency of common wet method branding synthetic leather product, one object of the present invention provides a kind of branding variable color synthetic leather, and this synthetic leather has the branding color changeable effect, has wide range of applications.Simultaneously, this branding color-change resin rerum natura is good, and wear-resisting scratch resistance performance is good, can make different surface details by the method for release liners veneer, and the burnt sense in branding back obviously has good visual effect.The another one purpose of invention provides a kind of preparation method of above-mentioned branding variable color synthetic leather.
In order to realize first above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of branding variable color synthetic leather, this synthetic leather are rubbed through water after branding color-change resin coating and dry method, wet-method synthetic leather or nonwoven fabric by washing, and wherein micronizing wax powder is removed, and forms the top layer of foam structure; Through the branding embossing, namely can be made into branding variable color synthetic leather after the oven dry; Described washing branding color-change resin, this branding color-change resin is made of following component by weight percentage:
Polyurethane resin 30% ~ 50%
Silica flatting silica 1% ~ 3%
Micronizing wax powder 8% ~ 12%
Plasticizer 0.5% ~ 3%
Organic silicon hand feeling agent 0.5% ~ 2%
Butyl acetate 10% ~ 30%
N, dinethylformamide 20% ~ 40%.
As preferably, described polyurethane resin is solvent type polyurethane resin, has comprised one or more mixtures in aromatic polyester type, aromatic polyether type, aliphatic polyester type and the aliphatic poly ether-based polyurethane resin.
As preferably, described plasticizer adopts the environment-friendly type plasticizer, has comprised epoxidized soybean oil, epoxy aliphatic acid methyl ester and trimethyl citrate.
As preferably, the viscosity of described product is between 1000cps/25 ℃ ~ 5000cps/25 ℃.
As preferably, add the mill base of 1 ~ 8% weight percent meter in the described branding color-change resin.
In order to realize second above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of preparation method who prepares above-mentioned synthetic leather, this method comprises the steps:
1) add polyurethane resin, N in still, dinethylformamide and butyl acetate stir;
2) add plasticizer, silica flatting silica and micronizing wax powder while stirring, stir and it was disperseed fully in 20 ~ 40 minutes;
3) viscosity of test products, discharging is filtered in qualified back;
After the washing branding color-change resin coating and dry method, wet-method synthetic leather or nonwoven fabric that 4) will make, rub through water, wherein micronizing wax powder is removed, and forms the top layer of foam structure;
5) after the oven dry through the branding embossing, namely can be made into branding variable color synthetic leather.
The present invention is coated on the synthetic leather skin drying by the branding color-change resin, by washing effect, removes micronizing wax powder in the resin then, forms the cavity, thereby makes the synthetic leather surface form foam structure.After being subjected to mould heat pressure, abscess disappears, and hot pressing position resin becomes transparent again, thereby appears the background color of lower floor, thereby reaches color changeable effect.Washing of the present invention branding color-change resin is by selecting the polyurethane resin carrier of high abrasion scratch resistance, and in addition unique abscess forms mechanism, thereby has good scratch resistance and ABRASION RESISTANCE.The viscosity that simultaneously can regulate product is fit to by different construction technologies such as roller coating, release liners veneers, is coated on the synthetic leather surface, can realize the decorative pattern of various complexity and special surface effect.In addition, do not have filler in the washing branding color-change resin of the present invention, the branding position is clear, penetrating, and Jiao of formation feels strongly, and color changeable effect is good.
The present invention has wide range of applications owing to adopted above-mentioned technical scheme.Simultaneously, this branding color-change resin rerum natura is good, wear-resisting scratch resistance performance is good, can add the different color of color paste deployment, also can make different surface details by the method for release liners veneer, the burnt sense in branding back obviously has good visual effect, can be widely used in footwear, case and bag will be higher to the synthetic leather performance requirement occasion.
The specific embodiment
Embodiment 1
With 30 parts polyurethane resins, 28 parts N, the butyl acetate of dinethylformamide and 30 parts stirs in still, add 1 part of epoxidized soybean oil, 2 parts organic silicon hand feeling agent, 1 part of silica flatting silica and 8 parts of micronizing wax powder then while stirring, stir 30min, it is disperseed fully.The viscosity that sampling is surveyed is 1200cps/25 ℃, and product is filtered the back discharging.
After the washing that makes being branded the color paste toning of color-change resin adding 3%, coat the dry-method chemical leather surface with the method for roller coating, after 130 ℃ of oven dry, water is rubbed 30min, takes out oven dry.Handle at the surface branding with the branding machine then, obtain decorative pattern and brand the variable color synthetic leather clearly.
Embodiment 2
With 35 parts polyurethane resins, 40 parts N, the butyl acetate of dinethylformamide and 12.5 parts stirs in still, add 0.5 part of epoxy aliphatic acid methyl ester, 1 part organic silicon hand feeling agent, 3 parts of silica flatting silicas and 8 parts of micronizing wax powder then while stirring, stir 30min, it is disperseed fully.The viscosity that sampling is surveyed is 2000cps/25 ℃, and product is filtered the back discharging.
After the washing that makes being branded the color paste toning of color-change resin adding 3%, coat the dry-method chemical leather surface with the method for roller coating, after 130 ℃ of oven dry, water is rubbed 30min, takes out oven dry.Handle at the surface branding with the branding machine then, obtain decorative pattern and brand the variable color synthetic leather clearly.
Embodiment 3
With 40 parts polyurethane resins, 30 parts N, the butyl acetate of dinethylformamide and 14.5 parts stirs in still, add 1 part of epoxy aliphatic acid methyl ester, 0.5 part organic silicon hand feeling agent, 2 parts of silica flatting silicas and 12 parts of micronizing wax powder then while stirring, stir 30min, it is disperseed fully.The viscosity that sampling is surveyed is 3000cps/25 ℃, and product is filtered the back discharging.
After the washing that makes branding color-change resin being added 5% color paste toning, fit in the wet-method synthetic leather surface with the method for release liners veneer, after 130 ℃ of oven dry, water is rubbed 30min, takes out to dry.Handle at the surface branding with the branding machine then, obtain decorative pattern and brand the variable color synthetic leather clearly.
Embodiment 4
With 40 parts polyurethane resins, 35 parts N, the butyl acetate of dinethylformamide and 10 parts stirs in still, add 3 parts of trimethyl citrates, 1 part organic silicon hand feeling agent, 1 part of silica flatting silica and 10 parts of micronizing wax powder then while stirring, stir 30min, it is disperseed fully.The viscosity that sampling is surveyed is 3000cps/25 ℃, and product is filtered the back discharging.
After the washing that makes branding color-change resin being added 5% color paste toning, fit in the wet-method synthetic leather surface with the method for release liners veneer, after 130 ℃ of oven dry, water is rubbed 30min, takes out to dry.Handle at the surface branding with the branding machine then, obtain decorative pattern and brand the variable color synthetic leather clearly.
Embodiment 5
With 50 parts polyurethane resins, 20 parts N, the butyl acetate of dinethylformamide and 16.5 parts stirs in still, add 2 parts of epoxidized soybean oils, 2 parts organic silicon hand feeling agent, 1 part of silica flatting silica and 10 parts of micronizing wax powder then while stirring, stir 30min, it is disperseed fully.The viscosity that sampling is surveyed is 5000cps/25 ℃, and product is filtered the back discharging.
After the washing that makes branding color-change resin being added 5% color paste toning, fit in nonwoven surface with the method for release liners veneer, after 130 ℃ of oven dry, water is rubbed 30min, takes out to dry.Handle at the surface branding with the branding machine then, obtain decorative pattern and brand the variable color synthetic leather clearly.
Claims (6)
1. brand the variable color synthetic leather for one kind, it is characterized in that: after this synthetic leather is branded color-change resin coating and dry method, wet-method synthetic leather or nonwoven fabric by washing, described washing branding color-change resin is made of following component by weight percentage: polyurethane resin 30% ~ 50%, silica flatting silica 1% ~ 3%, micronizing wax powder 8% ~ 12%, plasticizer 0.5% ~ 3%, organic silicon hand feeling agent 0.5% ~ 2%, butyl acetate 10% ~ 30%, N, dinethylformamide 20% ~ 40%; Rub through water, wherein micronizing wax powder is removed, and forms the top layer of foam structure; Through the branding embossing, namely can be made into branding variable color synthetic leather after the oven dry.
2. a kind of branding variable color synthetic leather according to claim 1, it is characterized in that: described polyurethane resin is solvent type polyurethane resin, has comprised one or more mixtures in aromatic polyester type, aromatic polyether type, aliphatic polyester type and the aliphatic poly ether-based polyurethane resin.
3. a kind of branding variable color synthetic leather according to claim 1, it is characterized in that: described plasticizer is selected one or more mixtures in epoxidized soybean oil, epoxy aliphatic acid methyl ester and the trimethyl citrate for use.
4. a kind of branding variable color synthetic leather according to claim 1 is characterized in that: the viscosity of described branding color-change resin is between 1000cps/25 ℃ ~ 5000cps/25 ℃.
5. a kind of branding variable color synthetic leather according to claim 1 is characterized in that: the mill base that adds 1% ~ 8% weight percent meter in the described branding color-change resin.
6. a preparation method who prepares any described branding variable color of the claim synthetic leather of claim 1 ~ 5 is characterized in that this method comprises the steps:
1) add polyurethane resin, N in still, dinethylformamide and butyl acetate stir;
2) add plasticizer, silica flatting silica and micronizing wax powder while stirring, stir and it was disperseed fully in 20 ~ 40 minutes;
3) viscosity of test products, discharging is filtered in qualified back;
After the washing branding color-change resin coating and dry method, wet-method synthetic leather or nonwoven fabric that 4) will make, rub through water, wherein micronizing wax powder is removed, and forms the top layer of foam structure;
5) after the oven dry through the branding embossing, namely can be made into branding variable color synthetic leather.
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| CN201310118807.0A CN103205901B (en) | 2013-04-08 | 2013-04-08 | Burnt discoloration synthetic leather and preparation method thereof |
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| CN201310118807.0A CN103205901B (en) | 2013-04-08 | 2013-04-08 | Burnt discoloration synthetic leather and preparation method thereof |
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| CN103205901A true CN103205901A (en) | 2013-07-17 |
| CN103205901B CN103205901B (en) | 2015-05-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017352A (en) * | 2014-05-30 | 2014-09-03 | 合肥安利聚氨酯新材料有限公司 | Dry-type hot ironing color-changing polyurethane resin and preparation method thereof |
| CN105906972A (en) * | 2016-04-21 | 2016-08-31 | 蔡啟轩 | Method for preparing bathroom temperature-sensing non-slip mat |
| CN109518471A (en) * | 2017-09-20 | 2019-03-26 | 科德宝·宝翎无纺布（苏州）有限公司 | Non-woven fabrics and its surface treatment method, automobile interior decoration |
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| CN101892593A (en) * | 2010-07-23 | 2010-11-24 | 江苏宝泽高分子材料股份有限公司 | Matt villus waxy feel finishing agent used for synthetic leather and preparation method thereof |
| CN102182068A (en) * | 2010-11-30 | 2011-09-14 | 江苏宝泽高分子材料股份有限公司 | Veneering water-kneading pressure-deformable resin for synthetic leather and preparation method thereof |
| CN102182066A (en) * | 2010-11-30 | 2011-09-14 | 江苏宝泽高分子材料股份有限公司 | Soft crazy-horse resin for clothing leather and preparation method thereof |
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2013
- 2013-04-08 CN CN201310118807.0A patent/CN103205901B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892593A (en) * | 2010-07-23 | 2010-11-24 | 江苏宝泽高分子材料股份有限公司 | Matt villus waxy feel finishing agent used for synthetic leather and preparation method thereof |
| CN102182068A (en) * | 2010-11-30 | 2011-09-14 | 江苏宝泽高分子材料股份有限公司 | Veneering water-kneading pressure-deformable resin for synthetic leather and preparation method thereof |
| CN102182066A (en) * | 2010-11-30 | 2011-09-14 | 江苏宝泽高分子材料股份有限公司 | Soft crazy-horse resin for clothing leather and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017352A (en) * | 2014-05-30 | 2014-09-03 | 合肥安利聚氨酯新材料有限公司 | Dry-type hot ironing color-changing polyurethane resin and preparation method thereof |
| CN105906972A (en) * | 2016-04-21 | 2016-08-31 | 蔡啟轩 | Method for preparing bathroom temperature-sensing non-slip mat |
| CN109518471A (en) * | 2017-09-20 | 2019-03-26 | 科德宝·宝翎无纺布（苏州）有限公司 | Non-woven fabrics and its surface treatment method, automobile interior decoration |
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| CN103205901B (en) | 2015-05-20 |
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Address after: 310000, 2, Jiang Shan Road, Mei Town, Jiande City, Zhejiang, Hangzhou Patentee after: Zhejiang deep blue new material Polytron Technologies Inc Address before: 313217 Zhejiang city of Huzhou province Deqing County Xin'an Xin Hui Road No. 120 Patentee before: Zhejiang Sunlight Textile Technology Co., Ltd. |