CN101666042A - Superfine basketball leather and preparation method thereof - Google Patents
Superfine basketball leather and preparation method thereof Download PDFInfo
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- CN101666042A CN101666042A CN200910018380A CN200910018380A CN101666042A CN 101666042 A CN101666042 A CN 101666042A CN 200910018380 A CN200910018380 A CN 200910018380A CN 200910018380 A CN200910018380 A CN 200910018380A CN 101666042 A CN101666042 A CN 101666042A
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Abstract
The invention relates to superfine basketball leather and a preparation method thereof, belonging to the technical field of synthetic leather and preparation methods thereof. The method is characterized by including the following steps: 1. processing superfine fiber nylon; 2. proportioning raw materials; 3. processing non-woven fabrics; 4. processing ironing cloth; 5. processing superfine fiber base cloth; 6. treating the superfine fiber base cloth; 7. processing superfine fiber base cloth with coatings; and 8. processing superfine fiber basketball leather. The invention provides the method for preparing the basketball leather with the coated superfine base cloth. Substances containing heavy metals and banned azo are not contacted and raw materials containing the heavy metals and the banned azo are not used during the preparation, thereby enabling the product to be much more environmental-friendly; and the superfine basketball leather prepared by the method has the advantages of high extraction passing ability, stable quality and high recovery ratio.
Description
One, technical field
The present invention relates to a kind of superfine basketball leather and preparation method thereof, belong to synthetic leather and preparation method thereof technical field.
Two, background technology
The cladding that basketball adopts is from natural leather, and along with the raising of science and technology development and living standards of the people, market demand is increasing, and more and more stricter to environmental protection requirement, and natural leather can not satisfy the growing needs in market.Therefore, artificial synthetic material begins to enter this field, has experienced several developing stage such as ball, PVC leather, PU synthetic leather, superfine fiber chemical leather, and ball, PVC leather progressively are eliminated owing to himself defective.PU synthetic leather, superfine fiber chemical leather be with its characteristics separately, becomes the main product of basketball with leather, wherein superfine basketball leather with its preferably feel account for apart from high-grade basketball with leather market.
Domestic present, superfine basketball leather mostly is in the pilot development phase, unstable product quality, scale and output are little, and the superfine basketball leather of its production is one-step method mostly, solidify one-shot forming with ultra-fine nonwoven fabric impregnation and coated through wet method, it is that the extraction trafficability characteristic is poor that there is subject matter in this method, product yield is low, and the high-grade basketball that causes the domestic market is with the basic dependence on import of leather, and not only expense is high but also waste time and energy.
Three, summary of the invention
The object of the invention is to solve the deficiency that above-mentioned prior art exists, a kind of preparation method who utilizes ultra-fine base cloth blade coating type basketball leather is provided, in preparation process, do not contact the material that contains heavy metal and forbidding azo class, do not use the raw material that contain heavy metal and forbidding azo class, thereby environmental protection character more, extract the trafficability characteristic height out through the superfine basketball leather that this prepared goes out, processing quality is stable, the yield height.
The present invention is achieved through the following technical solutions:
A kind of preparation method of superfine basketball leather, its special character is to comprise following procedure of processing:
1, the processing of ultrathin fiber nylon
Nylon-6 and polyethylene are pressed mass ratio 40-60%: 60-40% mixing, the nylon-6 component is dispersed in and forms island structure in the polyethylene component, any extracts the sea component in the islands-in-sea type fibre and the component that only stays the island forms ultrathin fiber nylon through the benzene,toluene,xylene equal solvent, and fiber number is the 0.01-0.005 DENIER.
2, proportioning raw materials
Ultrathin fiber nylon and polyurethane are pressed 20-40%: the mass ratio of 80-60% mixes;
3, the processing of nonwoven fabric
Carry out spinning, the fineness that spins silk is between the 4-7 DENIER, and drawn, the back severing that oils become the staple fibre of 45-55mm, put into the carding machine carding then, again through the lapping of lapping machine, after needing machine repeatedly punctures into the weight 500-540g/m of three-dimensional structure up and down
2Nonwoven fabric;
4, the processing of pressing cloth
It is 1.6-1.8mm that nonwoven fabric is processed into thickness through pressing;
5, the processing of superfine fiber fabric
Nonwoven fabric after plating is flooded with maceration extract, through solidifying, wash, extract out the sea component of islands-in-sea type fibre, carry out dryness finalization after the oiling treatment, obtaining thickness is the 1.40-1.50mm superfine fiber fabric.
6, the processing of superfine fiber fabric
Ultra-fine base cloth is rubbed skin to be handled, polishing dust removal process then is 1.30-1.40mm through the front to thickness, again through cationic surface active agent, anionic surfactant, any processing base cloths of nonionic surface active agent such as positive and negative S-7, S-11, S-8I.
7, the processing of the superfine fiber fabric of band coating
Superfine fiber fabric is carried out surperficial blade coating coating solution, carry out the ultra-fine base cloth that wet method is solidified, washes, oiled, drying is processed into 10 to 50 of band coatings then.
8, the processing of superfine fibre basketball leather
Ultra-fine base cloth surface printing, embossing are handled, and obtain the not only puckery but also wear-resisting superfine fibre basketball leather of the present invention.
Described maceration extract is a polyurethane solutions, the mass ratio of its batching is: 100 parts of polyurethane resins, join dimethyl formamide 40-60 part, any interfacial agent 0.8-1.2 parts such as F-3D, DS-10, S-8I, NO10, DS-3D, any polyurethane mill base 0.8-1.2 parts such as 8601,8607,8602,8616.
Described coating solution is a polyurethane solutions, its batching and ratio are: 100 parts of polyurethane resins, dimethyl formamide 30-40 part, any interfacial agent 0.8-1.2 parts such as F-3D, SD-11, SD-7, YWH-5000, any solidifies octadecanol-80, octadecanol-86, S-80, SF-9500 etc. and regulates auxiliary agent 0.4-0.6 part, any colour polyurethane paste 4-6 parts such as 8601,8607,8602,8616.
Polyurethane resin can be the solvent type polyurethane resin of any kind, is categorized as polyester-type, polyether-type, poly-carbon type or copoly type by polyalcohol; Be categorized as TDI type, MDI type, HDI type, IPDI type, H by isocyanates
12MDI type or copoly type; Be categorized as alcohols chain extender or amine chain extension by chain extender.
Superfine basketball leather of the present invention is to be made by above preparation method.
A kind of superfine basketball leather of the present invention and preparation method thereof, utilize the preparation method of ultra-fine base cloth blade coating type basketball leather, in preparation process, do not contact the material that contains heavy metal and forbidding azo class, do not use the raw material that contain heavy metal and forbidding azo class, thereby environmental protection character more, extract the trafficability characteristic height out through the superfine basketball leather that this prepared goes out, steady quality, soft, rate of recovery height.
Four, the specific embodiment
Below provide the specific embodiment of invention, the present invention is described further, but following embodiment is not construed as limiting protection scope of the present invention.
1, influence basketball leather pliability factor:
1), different spinning ratios change the influence to the basketball leather pliability
Two kinds of component nylon in the spinning and polyethylene are pressed the different proportion melt spinning, after shredding combing lapping, the basketball leather base cloth pliability difference that processing nonwoven fabrics obtains under certain acupuncture condition;
2), the maceration extract prescription is to the base cloth Effect on Performance
The resin that maceration extract is selected for use, auxiliary agent and prescription have bigger influence to the performance of basketball leather, through a large amount of screening and compatibilities, the resin of determining high low modulus is used, best results, stable for ensuring the quality of products simultaneously, when the nonwoven fabric impregnation, take to suppress the press for extracting juice mode base cloth resin content is brought up to 40-60%.
3), the coating formula of liquid is to puckery sense, Effect on Performance such as wear-resisting
Because the coating liquid layer is positioned at the superficial layer of base cloth, and is very big to the performance impact of basketball leather, cooperate puckery sense, anti-wear performance, pliability, embossability, the printing effect that directly influences basketball leather with maceration extract.
Especially the collocation of the selection of resin choice, auxiliary agent and resin and auxiliary agent, most important to performances such as the puckery sense of finished product, wear-resisting, softnesses.Through to kind, modulus, the filming performance of various kinds of resin, take off the DMF performance relatively and select, and after the screening of additive performance, carried out serial compatibility test.This wet method unusual part of filling a prescription is considered setting rate and cell size, for following process provides support, usually we select fast, the puckery sense of setting rate well, resin that foaming is good does coating.
2, the research of single face blade coating technology:
Produce basketball leather with the ultra-fine base cloth single face of basketball knife coating, the defective of having avoided conventional production process to extract poor stability out is as extracting defectives such as crimping, discounting, laying up out.By to singly scraping constantly groping of technology, progressively solved the problem that former this technology inevitable coating when solidifying plays bulla simultaneously.My company can the steady production superfine basketball leather at present to use this technology.
3, curing condition is to the influence of basketball leather base cloth anti-wear performance:
From the wet method freezing mechanism, solidify parameter and match with maceration extract prescription, coating formula of liquid, can regulate setting rate, regulate foam structure; Coagulation bath temperature, coagulating bath concentration, be two key elements that wet method is solidified, curing condition is strengthened (being that temperature is low, concentration is low) resin solidification speed to fast trend development, abscess behind the resin solidification is bigger, the anti-wear performance of basketball leather is relatively poor, simultaneously, if curing condition is strong excessively, the resin solidification on overlay surface is accelerated, thereby make the overlay surface produce big abscess, further reduce the anti-wear performance of basketball leather; Otherwise, the curing condition reduction, the abscess densification behind the resin solidification, anti-wear performance improves.
4, printing process conditions is to the influence of basketball leather:
The puckery sense of basketball leather, anti-wear performance are mainly reflected in the top layer except the characteristic of base cloth itself, and printing treatment increases puckery to the top layer of basketball leather just and improves its anti-wear performance.Consider in the bump test process of basketball leather, wear and tear gradually in the top layer, the basketball leather top layer that bump detects after finishing just loses puckery sense, because it is lower to increase the molecular weight of astringent, volatile, a large amount of anti-wear performance extreme differences that increase the astringent basketball leather that use are handled with the printing ink that anti-wear performance is good, and bump test reaches a standard, but puckery sense does not increase again, therefore, when the design and printing process conditions, emphasis will solve not only wear-resisting but also increase puckery contradiction.
Main selection by printing ink, auxiliary agent, the adjustment of typography, solvent and ink addition agent collocation solve this contradiction.
Through a large amount of experiment sieving and composite, and the improvement by typography, as primary coat printing ink, printing is more than three sections, and (because print roller adopts is netted gravure roll, could film forming through the printing more than three sections the good and wear-resisting printing ink of puckery sense, form screen layer), wearing and tearing when reducing bump test, and in last inking, add auxiliary agent, the amount of reducing wear when guaranteeing to clash in right amount, simultaneously still can keep good puckery sense, preferably resolve not only puckery but also wear-resisting this contradiction.
5, heavy metal problem
At well-known both at home and abroad basketball manufacturer for example: SPALDING, NIKE etc. are to environmental protection requirement, screening and the auxiliary agent in the production process at basketball leather raw materials for production, auxiliary agent use, all by European Union's standard, do not use the raw material that contains azo dyes, heavy metal (chromium, lead, mercury etc.), dyestuff, auxiliary agent etc., reach environmental requirement to guarantee basketball leather.
Embodiment 1
The processing method of the superfine basketball leather of present embodiment is as follows:
1, nylon-6 and the polyethylene mass ratio by 40%: 60% is mixed, the nylon-6 component is dispersed in and forms island structure in the polyethylene component, any extracts the sea component in the islands-in-sea type fibre and the component that only stays the island forms ultrathin fiber nylon through the benzene,toluene,xylene equal solvent, and fiber number is the 0.01-0.005 DENIER.
2, ultrathin fiber nylon and the polyurethane mass ratio by 20%: 80% is mixed;
3, carry out spinning, the fineness that spins silk is between the 4-7 DENIER, and drawn, the back severing that oils become the staple fibre of 45-55mm, put into the carding machine carding then, again through the lapping of lapping machine, after needing machine repeatedly punctures into the weight 500-540g/m of three-dimensional structure up and down
2Nonwoven fabric;
4, to be processed into thickness through pressing be 1.6-1.8mm to nonwoven fabric;
5, the nonwoven fabric after will plating floods with maceration extract, through solidifying, wash, extract out the sea component of islands-in-sea type fibre, carries out dryness finalization after the oiling treatment, and obtaining thickness is the 1.40-1.50mm superfine fiber fabric.
6, ultra-fine base cloth being rubbed skin handles, polishing dust removal process then is 1.30-1.40mm through the front to thickness, handles base cloth through positive and negative with any cationic surface active agents such as S-7, S-11, S-8I, anionic surfactant, nonionic surface active agent again.
7, superfine fiber fabric is carried out surperficial blade coating coating solution, carry out the ultra-fine base cloth that wet method is solidified, washes, oiled, drying is processed into 10 to 50 of band coatings then.
8, ultra-fine base cloth surface printing, embossing are handled, and obtain the not only puckery but also wear-resisting superfine fibre basketball leather of the present invention.
Maceration extract is a polyurethane solutions, and the mass ratio of its batching is: 100 parts of polyurethane resins, join 40 parts of dimethyl formamides, 0.8 part of interfacial agent, 1.2 parts of mill bases.
Coating solution is a polyurethane solutions, and its batching and ratio are: 100 parts of polyurethane resins, and 30 parts of dimethyl formamides, 1.2 parts of interfacial agents solidify and regulate 0.4 part of auxiliary agent, 6 parts of colour polyurethane pastes.
Polyurethane resin can be the solvent type polyurethane resin of any kind, is categorized as polyester-type, polyether-type, poly-carbon type or copoly type by polyalcohol; Be categorized as TDI type, MDI type, HDI type, IPDI type, H by isocyanates
12MDI type or copoly type; Be categorized as alcohols chain extender or amine chain extension by chain extender.
Embodiment 2
The difference of present embodiment and embodiment 1 is:
In the processing method of superfine basketball leather
1, nylon-6 and polyethylene are pressed 50%: 50% mass ratio mixing;
2, ultrathin fiber nylon and polyurethane are pressed 30%: 70% mass ratio mixing.
Maceration extract is a polyurethane solutions, and the mass ratio of its batching is: 100 parts of polyurethane resins, join 50 parts of dimethyl formamides, 1 part of interfacial agent, 1 part of mill base.
Coating solution is a polyurethane solutions, and its batching and ratio are: 100 parts of polyurethane resins, and 40 parts of dimethyl formamides, 0.8 part of interfacial agent solidifies and regulates 0.6 part of auxiliary agent, 4 parts of colour polyurethane pastes.
Embodiment 3
The difference of present embodiment and embodiment 1 is:
In the processing method of superfine basketball leather
1, nylon-6 and polyethylene are pressed 60%: 40% mass ratio mixing;
2, ultrathin fiber nylon and polyurethane are pressed 40%: 60% mass ratio mixing.
Maceration extract is a polyurethane solutions, and the mass ratio of its batching is: 100 parts of polyurethane resins, join 60 parts of dimethyl formamides, 1.2 parts of interfacial agents, 0.8 part of mill base.
Coating solution is a polyurethane solutions, and its batching and ratio are: 100 parts of polyurethane resins, and 35 parts of dimethyl formamides, 1 part of interfacial agent solidifies and regulates 0.5 part of auxiliary agent, 5 parts of colour polyurethane pastes.
Different proportion of fibers blending nonwoven fabric processing back pliability is compared as follows shown in the table:
Checking by experiment, the nonwoven fabric that 20-50% nylon and the spinning of 80-50% polyethylene ratio are made, after the resin finishing, substantially and the target pliability approaching.
The advantage of above-mentioned two embodiment is as follows:
1, the nonwoven fabric after plating behind the dipping, by adjusting special impregnation mode, changes impregnation sermon and nip in the maceration extract of as above proportioning, steady quality when adjusting method bonding such as dipping solid content and scraping.
2, this wet method prescription is considered setting rate and cell size, and for following process provides support, the resin that fast, the puckery sense of selection setting rate well, foaming is good is done coating.
3, solve prior art inevitable coating when solidifying and played the problem of bulla, thus can the steady production superfine basketball leather.
4, select for use the good and wear-resisting printing ink of puckery sense as primary coat printing ink, (owing to the print roller employing is netted gravure roll more than three sections in printing, through the ability of the printing more than three sections film forming, form screen layer), wearing and tearing when reducing bump test, and in last inking, add auxiliary agent, the amount of reducing wear when guaranteeing to clash in right amount, simultaneously still can keep good puckery sense, preferably resolve not only puckery but also wear-resisting this contradiction.
5, do not use the raw material that contains azo dyes, heavy metal (chromium, lead, mercury etc.), dyestuff, auxiliary agent etc. in process of production, reach environmental requirement to guarantee basketball leather.
Claims (5)
1, a kind of preparation method of superfine basketball leather is characterized in that comprising following procedure of processing:
1) processing of ultrathin fiber nylon
Nylon-6 and polyethylene are pressed 40-60%: the mass ratio of 60-40% mixes, the nylon-6 component is dispersed in and forms island structure in the polyethylene component, fall the sea component in the islands-in-sea type fibre and the component that only stays the island forms ultrathin fiber nylon through any solvent extraction in the benzene,toluene,xylene, fiber number is the 0.01-0.005 DENIER;
2) proportioning raw materials
Ultrathin fiber nylon and polyurethane are pressed 20-40%: the mass ratio of 80-60% mixes;
3) processing of nonwoven fabric
Carry out spinning, the fineness that spins silk is between the 4-7 DENIER, and drawn, the back severing that oils become the staple fibre of 45-55mm, put into the carding machine carding then, again through the lapping of lapping machine, after needing machine repeatedly punctures into the weight 500-540g/m of three-dimensional structure up and down
2Nonwoven fabric;
4) processing of pressing cloth
It is 1.6-1.8mm that nonwoven fabric is processed into thickness through pressing;
5) processing of superfine fiber fabric
Nonwoven fabric after plating is flooded with maceration extract, through solidifying, wash, extract out the sea component of islands-in-sea type fibre, carry out dryness finalization after the oiling treatment, obtaining thickness is the 1.40-1.50mm superfine fiber fabric;
6) processing of superfine fiber fabric
Ultra-fine base cloth is rubbed skin to be handled, polishing dust removal process then is 1.0-1.40mm through the front to thickness, and any cationic surface active agent, anionic surfactant, nonionic surface active agent are handled base cloth in positive and negative S-7, S-11, S-8I again.
7) processing of the superfine fiber fabric of band coating
Superfine fiber fabric is carried out surperficial blade coating coating solution, carry out the ultra-fine base cloth that wet method is solidified, washes, oiled, drying is processed into 10 to 50 of band coatings then;
8) processing of superfine fibre basketball leather
Ultra-fine base cloth surface printing, embossing are handled, and obtain the not only puckery but also wear-resisting superfine fibre basketball leather of the present invention.
2, according to the preparation method of the described a kind of superfine basketball leather of claim 1, it is characterized in that described maceration extract is a polyurethane solutions, the mass ratio of its batching is: 100 parts of polyurethane resins, join dimethyl formamide 40-60 part, F-3D, DS-10, S-8I, NO10, any interfacial agent of DS-3D 0.8-1.2 part, 8601,8607,8602,8616 any polyurethane mill base 0.8-1.2 parts.
3, according to the preparation method of the described a kind of superfine basketball leather of claim 1, it is characterized in that
Described coating solution is a polyurethane solutions, its batching and ratio are: 100 parts of polyurethane resins, dimethyl formamide 30-40 part, F-3D, DS-10, S-8I, NO10, any interfacial agent of DS-3D 0.8-1.2 part, any solidifies octadecanol-80, octadecanol-86, S-80, SF-9500 and regulates auxiliary agent 0.4-0.6 part, 8601,8607,8602,8616 any colour polyurethane paste 4-6 parts.
4, according to the preparation method of claim 2 or 3 described a kind of superfine basketball leathers, it is characterized in that
Described polyurethane resin is a solvent type polyurethane resin, is categorized as polyester-type, polyether-type, poly-carbon type or copoly type by polyalcohol; Be categorized as TDI type, MDI type, HDI type, IPDI type, H12MDI type or copoly type by isocyanates; Be categorized as alcohols chain extender or amine chain extension by chain extender.
5, the superfine basketball leather that makes of the preparation method of claim 1 or 2 or 3 or 4 described a kind of superfine basketball leathers.
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| CN101851865A (en) * | 2010-05-31 | 2010-10-06 | 上海华峰超纤材料股份有限公司 | Superfine fiber polyurethane synthetic leather base fabric and preparation method thereof |
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| CN102234938A (en) * | 2010-05-07 | 2011-11-09 | 福建兰峰制革有限公司 | Process for manufacturing super-fiber nubuck leather |
| CN101851865A (en) * | 2010-05-31 | 2010-10-06 | 上海华峰超纤材料股份有限公司 | Superfine fiber polyurethane synthetic leather base fabric and preparation method thereof |
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| CN107401062A (en) * | 2017-08-10 | 2017-11-28 | 山东泽辉新材料股份有限公司 | A kind of preparation method of the special leather of basketball |
| CN110747655A (en) * | 2019-09-26 | 2020-02-04 | 安徽安利材料科技股份有限公司 | Solvent-free polyurethane environment-friendly material for basketball and preparation method thereof |
| CN110747655B (en) * | 2019-09-26 | 2021-11-23 | 安徽安利材料科技股份有限公司 | Solvent-free polyurethane environment-friendly material for basketball and preparation method thereof |
| CN111778730A (en) * | 2020-05-18 | 2020-10-16 | 南京群力运动器材有限公司 | Preparation method and application of antibacterial leather |
| CN112760992A (en) * | 2020-12-28 | 2021-05-07 | 华伦皮塑（苏州）有限公司 | Wear-resistant basketball leather and preparation method thereof |
| CN113802386A (en) * | 2021-04-21 | 2021-12-17 | 安安(中国)有限公司 | Method for manufacturing superfine fiber synthetic leather with high color fastness |
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