CN103657981B - Method for processing faux suede membrana dermalis coating - Google Patents
Method for processing faux suede membrana dermalis coating Download PDFInfo
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- CN103657981B CN103657981B CN201310592132.3A CN201310592132A CN103657981B CN 103657981 B CN103657981 B CN 103657981B CN 201310592132 A CN201310592132 A CN 201310592132A CN 103657981 B CN103657981 B CN 103657981B
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Abstract
The invention discloses a method for processing a faux suede membrana dermalis coating. The method comprises the following steps: (1) bottom layer rubber coating preparation, namely, evenly stirring 100 parts of polyurethane resin, 0.5-1 part of polyurethane thickening agent, 0.5-2 parts of melamine cross-linking agents, 4-10 parts of foam stabilizers and 1-3 parts of foaming agents and increasing the foaming size to 1-3 times, (2) facial layer rubber coating preparation, namely, evenly stirring 100 parts of coldness-resistant lightless coating adhesive, 5-10 parts of amidogen modified polysiloxane, 0.5-2 parts of cross-linking agents and color paste, (3) adopting a dry method to coat directly, increasing the dry weight of the bottom layer rubber coating by 5-8g/m2, using a planishing mill for calendaring, and increasing the dry weight of the facial layer rubber coating by 7-10g/m2. The method is simple in technology and feasible, improves the distortion and bending resistance, elasticity and softness of fabric, improves dry-wet friction firmness, wear-resisting performance and coldness resistance of the fabric, and does not influence in index of the fabric.
Description
Technical field
The invention belongs to textile fabric hindlimb unload field, what be specifically related to is the processing method of suede nap epithelial membrane coating, with improve the antitorque curvature of chamois flannel face fabric epithelial membrane coating flexible can, improve flexibility, elasticity, the resistance to usability of product.
Background technology
In textile industry the fabric of the fur style of imitated animal muntjac flock suede, become being commonly called as of various flock suede at piece market suede nap, said suede nap is exactly this flock suede fabric below.Suede nap it be utilize natural fiber or natural fiber and superfine fibre interwoven through processing the fabric making fabric face form the smooth filoplume style of forward type, the style of its uniqueness is liked by consumer deeply.
Flock suede dry method epithelial membrane coating uses direct coating apparatus, with the form of blade coating, coating adhesive is coated in fabric face, gives suede nap epithelium style.The fabric of suede nap is after epithelial membrane coating arranges, because fluffy, the obstruct of suede nap surface hairiness, the coating adhesive of coating is combined with the filoplume face of suede nap and forms coating epithelium, and outward appearance is very close to corium.
Prior art flock suede dry method epithelial membrane coating uses polyacrylate or the direct coating of polyurethane coating glue, and the filoplume due to suede nap surface makes coating epithelium fluffy thick, and during use, coating epithelium repeatedly bends and easily occurs crack.Especially under cryogenic, coating
skinfilm is hardening, crisp, more easily occurs crack.
Summary of the invention
The object of this invention is to provide a kind of suede nap epithelial membrane coating processing method, reach and improve the flexible energy of the antitorque curvature of fabric, elasticity and pliability, improve its dry fastness to wet rubbing, anti-wear performance, cold resistance simultaneously.And do not affect the indexs such as its washing fastness, tearing resistance, fracture strength, light fastness, outward appearance.
Suede nap epithelial membrane coating processing method of the present invention:
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.5 ~ 1 part of mixing and stirring, then add melamine crosslinkers 0.5 ~ 2, mill base to use dispersion machine to stir in right amount to make liquid fully be mixed into air to reach the state of foaming, then add after foam stabiliser 4 ~ 10 parts stirs, add blowing agent 1 ~ 3 part again to stir and foam, 1-3 is increased to doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 5 ~ 10 parts, melamine crosslinkers 0.5 ~ 2 part, mill base are added dispersion machine in right amount successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C ~ 140 DEG C bake 1 ~ 2 minute, do weightening finish 5-8g/ ㎡, then use calender calendering, pressure 70 ~ 90 ㎏/cm
2, temperature 70 ~ 80 DEG C, speed 25 ~ 35m/min;
(2-2) with floating blade coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 160
~170 DEG C bake 1
~2 minutes, dry weightening finish 7-10g/ ㎡.
Above-mentioned surface layer gluing coating can be coating twice, strengthens film thickness, epithelium sense is stronger.
Above-mentioned polyurethane resin, is selected from Liaoning Sunichem Co., Ltd.'s product: polyurethane resin FS-0501;
Above-mentioned polyurethane thickener, is selected from Linan, Zhejiang Fu Sheng coating additive Co., Ltd product: polyurethane thickener PU-40;
Above-mentioned blowing agent, is selected from Italian Bu Saite group product: the blowing agent STOKAL STA of natural and synthetic latex;
Above-mentioned foam stabiliser, is selected from Italian Bu Saite group product; The foaming agent of latex and stabilizing agent STOKAL SR;
Above-mentioned melamine crosslinkers
,be selected from Liaoning Sunichem Co., Ltd.'s product: melamine crosslinkers DF-810;
Above-mentioned cold-resistant unglazed coating glue, is selected from Liaoning Sunichem Co., Ltd.'s product: cold-resistant unglazed coating glue FS-801B;
Above-mentioned amino modified polysiloxane, is selected from Liaoning Sunichem Co., Ltd.'s product: soft gorgeous cunning;
Above-mentioned mill base, optional Shanghai ink Si Lian Chemical Co., Ltd. product: G type environment-friendly type mill base.
Present invention process is simple, easy, improve the flexible energy of the antitorque curvature of fabric, elasticity and pliability, improve its dry fastness to wet rubbing, anti-wear performance, cold resistance simultaneously, and do not affect the indexs such as its washing fastness, tearing resistance, fracture strength, light fastness, outward appearance.
The end that the present invention selects, finishing coat glue are all EUs.EU strand is made up of soft section and hard section, and incompatible its pliability, vitrification point, hot strength, the flex stiffiness of causing on thermodynamics is superior, and its ehter bond cohesive energy is low, and easily rotate, compliance is good.
The present invention is by carrying out foaming process to bottom gluing, owing to stirring the effect with blowing agent (surfactant), make gas dispersion among polyurethane resin, form microvesicle aggregation, and mutually isolated with resin film, and adjacent microvesicle assembles formation foam mutually.Carry out in baked journey behind coating suede nap surface, the partial air be present in bubble is discharged from bottom gluing positive and negative, glued membrane is formed and has the micropore shape digested.In addition, due to the iris action of bubble, not easily penetrate into fabric base layer inside during the coating of bottom gluing, the suede nap fabric after such primary coat is not inflexible, soft flexible.This foaming process does not destroy the structural formula of EU, does not therefore change EU therefore some advantages.
The low temperature elasticity of high polymer depends on the compliance of macromolecular chain and segment, depends on the interior rotation of trunk chain, the stereoeffect of molecular separating force and large molecule itself.Hydrogen atom on common polyurethane adjacent carbon atom repels mutually, so the potential barrier that C-C key rotates is larger, and the resistance ratios C-C that the EU ehter bond after foaming rotates freely is little, and C-C separately just can be increased the compliance of macromolecular chain by ehter bond.Therefore softness, elasticity during bottom gluing low temperature, antitorque curvature flexibility can be still good.
Foaming process do not taked by surface layer gluing, because foaming can affect the film forming of surface layer gluing.Surface layer gluing adds amino modified polysiloxane, can form carbamate in course of reaction, contributes to forming EU macromolecular network structure, and network structure can strengthen the brute force of film.Cross-linking reaction is there is containing in multiple hydroxyl reaction in usual amido silicon oil, hot strength (mechanical property) can effectively improve, substantially increase the flexible energy of antitorque curvature of epithelial membrane coating, the silicon oxygen bond in amido silicon oil is very soft, and its elongation at break (mechanical property) is improved.Amino modified polysiloxane bond length length, bond angle and bond energy are large, and very submissive, viscous flow activation energy is very little, also there is sub-chain motion when temperature is reduced to-136 DEG C, has also possessed cold tolerance simultaneously.
Detailed description of the invention
Embodiment 1
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.5 part of mixing and stirring, then melamine crosslinkers 0.5 part, mill base 5 parts is added, use dispersion machine stirring to make liquid fully be mixed into air and reach the state of foaming, then add after foam stabiliser 4 parts stirs, add blowing agent 1 part again to stir, 1-1.5 is increased doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 5 parts, melamine crosslinkers 2 parts, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5min, dry weightening finish 8g/ ㎡.
Embodiment 2
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.7 part of mixing and stirring, then melamine crosslinkers 0.8 part, mill base 5 parts is added, use dispersion machine stirring to make liquid fully be mixed into air and reach the state of foaming, then add after foam stabiliser 6 parts stirs, add blowing agent 1.5 parts again to stir, 1.5-2 is increased to doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 5 parts, melamine crosslinkers 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5min, dry weightening finish 7g/ ㎡.
Embodiment 3
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.7 part of mixing and stirring, then melamine crosslinkers 1 part, mill base 5 parts is added, use dispersion machine stirring to make liquid fully be mixed into air and reach the state of foaming, then add after foam stabiliser 8 parts stirs, add blowing agent 1.5 parts again to stir, 1.5-2 is increased to doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 10 parts, melamine crosslinkers 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5min, dry weightening finish 7g/ about ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Embodiment 4
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.8 part of mixing and stirring, then melamine crosslinkers 1.5 parts, mill base 5 parts is added, use dispersion machine stirring to make liquid fully be mixed into air and reach the state of foaming, then add after foam stabiliser 8 parts stirs, add blowing agent 2 parts again to stir, 2-2.5 is increased doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 10 parts, melamine crosslinkers 0.5 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 8g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Embodiment 5
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 1 part of mixing and stirring, then add melamine crosslinkers 1.5 parts, mill base 5 parts of use dispersion machines stir and make liquid fully be mixed into air to reach the state of foaming, then add after foam stabiliser 10 parts stirs, add blowing agent 3 parts again to stir, 2.5-3 is increased doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, melamine crosslinkers 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 8g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 10g/ ㎡.
This embodiment surface layer gluing does not add amino modified polysiloxane, does not improve cold tolerance.
Embodiment 6
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.7 part of mixing and stirring, then add melamine crosslinkers 1 part, mill base 5 parts of use dispersion machines stir and make liquid fully be mixed into air to reach the state of foaming, then add after foam stabiliser 6 parts stirs, add blowing agent 1.5 parts again to stir, 1.5-2 is increased doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 10 parts, melamine crosslinkers 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 7g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, face is coated with two-layer, and 165 DEG C bake 1.5 minutes, every layer of dry weightening finish 10g/ ㎡.
This embodiment face is coated with two-layer epithelium sense and strengthens, and antitorque curvature is flexible can be good.
The chamois flannel face fabric specification that above-described embodiment 1-6 uses is 70D*225/20*3*31
Polyurethane resin described in above-described embodiment 1-6, is selected from Liaoning Sunichem Co., Ltd.'s product: polyurethane resin FS-0501;
Polyurethane thickener described in above-described embodiment 1-6, is selected from Linan, Zhejiang Fu Sheng coating additive Co., Ltd product: polyurethane thickener PU-40
Above-described embodiment 1-6 institute
stateblowing agent, is selected from Italian Bu Saite group product: the blowing agent STOKAL STA of natural and synthetic latex;
Foam stabiliser described in above-described embodiment 1-6, is selected from Italian Bu Saite group product: the foaming agent of latex and stabilizing agent STOKAL SR;
Melamine crosslinkers described in above-described embodiment 1-6, is selected from Liaoning Sunichem Co., Ltd.'s product: melamine crosslinkers DF-810;
Cold-resistant unglazed coating glue described in above-described embodiment 1-6, is selected from Liaoning Sunichem Co., Ltd.'s product: cold-resistant unglazed coating glue FS-801B;
Amino modified polysiloxane choosing described in above-described embodiment 1-6, from Liaoning Sunichem Co., Ltd.'s product: soft gorgeous cunning;
Mill base described in above-described embodiment 1-6, is selected from Shanghai ink Si Lian Chemical Co., Ltd. product: G type environment-friendly type mill base.
Prior art suede nap epithelial membrane coating processing method is adopted to test:
Experimental example 1
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by polyurethane resin 100 parts and polyurethane thickener 0.5 part of mixing and stirring, then add melamine crosslinkers 0.5 part, mill base 5 parts, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 100 parts, cold-resistant unglazed coating glue, crosslinking agent 2 parts, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 8g/ ㎡.
Experimental example 2
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by polyurethane resin 100 parts and polyurethane thickener 0.7 part of mixing and stirring, then add melamine crosslinkers 0.8 part, mill base 5 parts, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 100 parts, cold-resistant unglazed coating glue, crosslinking agent 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5min, dry weightening finish 7g/ ㎡.
Experimental example 3
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by polyurethane resin 100 parts and polyurethane thickener 0.7 part of mixing and stirring, then add melamine crosslinkers 1 part, mill base 5 parts, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 100 parts, cold-resistant unglazed coating glue, crosslinking agent 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 7g/ about ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Experimental example 4
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by polyurethane resin 100 parts and polyurethane thickener 0.8 part of mixing and stirring, then add melamine crosslinkers 1.5 parts, mill base 5 parts, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 100 parts, cold-resistant unglazed coating glue, crosslinking agent 0.5 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 8g/ about ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Experimental example 5
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by polyurethane resin 100 parts and polyurethane thickener 1 part of mixing and stirring, then add melamine crosslinkers 1.5 parts, mill base 5 parts, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 100 parts, cold-resistant unglazed coating glue, crosslinking agent 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 8g/ about ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, 165 DEG C bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Experimental example 6
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by polyurethane resin 100 parts and polyurethane thickener 0.7 part of mixing and stirring, then add melamine crosslinkers 1 part, mill base 5 parts, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 10 parts, crosslinking agent 1 part, mill base 5 parts are added dispersion machine successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C bake 1.5 minutes, do weightening finish 7g/ about ㎡, then use calender calendering, pressure 70 ㎏/cm
2, temperature 80 DEG C, speed 30m/min;
(2-2) be coated on the primer coating glue after above-mentioned calendering with floating blade coating machine by (1-2) surface layer gluing, face is coated with two-layer, and 165 DEG C bake 1.5 minutes, every layer of dry weightening finish 10g/ ㎡.
This experimental example surface layer gluing adds amino modified polysiloxane, and relative cold tolerance significantly improves.
The chamois flannel face fabric specification that above-mentioned experimental example 1-6 uses is 70D*225/20*3*31;
The polyurethane resin that above-mentioned experimental example 1-6 uses, is selected from Liaoning Sunichem Co., Ltd.'s product: polyurethane resin FS-0501;
The cold-resistant unglazed coating glue used described in above-mentioned experimental example 1-6, is selected from Liaoning Sunichem Co., Ltd.'s product: cold-resistant unglazed coating glue FS-801B;
Amino modified polysiloxane choosing described in above-described embodiment 1-6, from Liaoning Sunichem Co., Ltd.'s product: soft gorgeous cunning;
The mill base that above-mentioned experimental example 1-6 uses, is selected from Shanghai ink Si Lian Chemical Co., Ltd. product: G type environment-friendly type mill base.
Embodiment of the present invention 1-6 Product checking index is as following table:
| Test item product | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Dry friction color fastness (level) | 4 | 4 | 4 | 4 | 4 | 4 |
| Wet friction color fastness (level) | 3～4 | 3～4 | 3～4 | 3～4 | 3 | 3 |
| Colour fastness to rubbing (level) | 3～4 | 3～4 | 3～4 | 3～4 | 3～4 | 3～4 |
| Antitorque curvature is flexible | Free from flaw | Free from flaw | Free from flaw | Free from flaw | Free from flaw | Free from flaw |
| Cold resistance (-30 DEG C) | Free from flaw | Free from flaw | Free from flaw | Free from flaw | There is slight crack | Free from flaw |
| Outward appearance | Film sense is good | Film sense is good | Film sense is good | Film sense is good | Film sense is good | Film sense is good |
| Pliability (-30 DEG C) | Soft | Soft | Soft | Soft | Slightly hardening | Soft |
Experimental example 1-6 Product checking index is as following table:
| Test item product | Experimental example 1 | Experimental example 2 | Experimental example 3 | Experimental example 4 | Experimental example 5 | Experimental example 6 |
| Dry friction color fastness (level) | 3～4 | 3～4 | 3～4 | 3～4 | 3～4 | 3～4 |
| Wet friction color fastness (level) | 3 | 3 | 3 | 3 | 3 | 3 |
| Colour fastness to rubbing (level) | 3～4 | 3～4 | 3～4 | 3～4 | 3～4 | 3～4 |
| Antitorque curvature is flexible | There is crack | There is crack | There is crack | There is crack | There is crack | There is slight crack |
| Cold resistance (-30 DEG C) | There is crack | There is crack | There is crack | There is crack | There is crack | Free from flaw |
| Outward appearance | Film sense is good | Film sense is good | Film sense is good | Film sense is good | Film sense is good | Film sense is good |
| Pliability (-30 DEG C) | Hardening | Hardening | Hardening | Hardening | Hardening | Slightly hardening |
Antitorque curvature is flexible: according to the standard test of the antitorque curvature of FZ/T 01052-1998 coated fabric flexible energy;
Dry, wet friction color fastness: measure by GB/T3920-83;
Colour fastness to rubbing: measure by GB/T8427-2008;
Lower temperature resistance: by the mensuration of FZ/T 01007-2008 coated fabric lower temperature resistance.
As can be seen from above testing result, the present invention uses foaming process and adds amino modified polysiloxane, the softness of suede nap epithelial membrane coating fabric, elasticity, the flexible energy of antitorque curvature can be significantly improved, improve taking, and do not affect other performance indications of fabric.
Claims (1)
1. suede nap epithelial membrane coating processing method, is characterized in that:
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By polyurethane resin 100 parts and polyurethane thickener 0.5 ~ 1 part of mixing and stirring, then add melamine crosslinkers 0.5 ~ 2, mill base to use dispersion machine to stir in right amount to make liquid fully be mixed into air to reach the state of foaming, then add after foam stabiliser 4 ~ 10 parts stirs, add blowing agent 1 ~ 3 part again to stir and foam, 1-3 is increased to doubly before making the volume after foaming relatively add blowing agent, stand-by;
(1-2) surface layer gluing preparation:
100 parts, cold-resistant unglazed coating glue, amino modified polysiloxane 5 ~ 10 parts, melamine crosslinkers 0.5 ~ 2 part, mill base are added dispersion machine in right amount successively and stir, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) be coated on chamois flannel face fabric with floating blade coating machine by (1-1) bottom gluing, 130 DEG C ~ 140 DEG C bake 1 ~ 2 minute, do weightening finish 5-8g/ ㎡, then use calender calendering, pressure 70 ~ 90 ㎏/cm
2, temperature 70 ~ 80 DEG C, speed 25 ~ 35m/min;
(2-2) with floating blade coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 160
~170 DEG C bake 1
~2 minutes, dry weightening finish 7-10g/ ㎡;
Above-mentioned surface layer gluing coating can be coating twice;
Above-mentioned polyurethane resin, is selected from Liaoning Sunichem Co., Ltd.'s product: polyurethane resin FS-0501;
Above-mentioned polyurethane thickener, is selected from Linan, Zhejiang Fu Sheng coating additive Co., Ltd product: polyurethane thickener PU-40;
Above-mentioned blowing agent, is selected from Italian Bu Saite group product: the blowing agent STOKAL STA of natural and synthetic latex;
Above-mentioned foam stabiliser, is selected from Italian Bu Saite group product; The foaming agent of latex and stabilizing agent STOKAL SR;
Above-mentioned melamine crosslinkers
,be selected from Liaoning Sunichem Co., Ltd.'s product: melamine crosslinkers DF-810;
Above-mentioned cold-resistant unglazed coating glue, is selected from Liaoning Sunichem Co., Ltd.'s product: cold-resistant unglazed coating glue FS-801B;
Above-mentioned amino modified polysiloxane, is selected from Liaoning Sunichem Co., Ltd.'s product: soft gorgeous cunning;
Above-mentioned mill base, optional Shanghai ink Si Lian Chemical Co., Ltd. product: G type environment-friendly type mill base.
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| CN106380827A (en) * | 2016-09-23 | 2017-02-08 | 桐乡波力科技复材用品有限公司 | Gel red rubber for stroke bat |
| CN107090718A (en) * | 2017-05-25 | 2017-08-25 | 无锡金双面料科技有限公司 | A kind of processing technology of segmentation crack suede nap |
| CN112553916A (en) * | 2020-11-27 | 2021-03-26 | 常州骏嘉纺织科技有限公司 | Flexible anti-cracking suede nap and preparation method thereof |
| CN114766753A (en) * | 2022-03-24 | 2022-07-22 | 高梵(浙江)信息技术有限公司 | Down jacket with high heat preservation performance and preparation method thereof |
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| CN101481580A (en) * | 2008-12-23 | 2009-07-15 | 中国人民解放军总后勤部军需装备研究所 | Waterproof, low temperature resistant, soft and moisture permeable coating glue and preparation thereof |
| CN102408699A (en) * | 2011-09-06 | 2012-04-11 | 烟台华大化学工业有限公司 | Composite slurry, synthetic leather substrate and preparation method of synthetic leather substrate |
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| US20080242176A1 (en) * | 2007-03-30 | 2008-10-02 | Ironclad Performance Wear Corp. | Fabric with improved heat resistance and methods of making same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101481580A (en) * | 2008-12-23 | 2009-07-15 | 中国人民解放军总后勤部军需装备研究所 | Waterproof, low temperature resistant, soft and moisture permeable coating glue and preparation thereof |
| CN102408699A (en) * | 2011-09-06 | 2012-04-11 | 烟台华大化学工业有限公司 | Composite slurry, synthetic leather substrate and preparation method of synthetic leather substrate |
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| 董永春.聚硅烷类纺织助剂.《纺织助剂化学与应用》.2007,(第1版),第98-106页. * |
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