CN103657981A - Method for processing faux suede membrana dermalis coating - Google Patents
Method for processing faux suede membrana dermalis coating Download PDFInfo
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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 finishing technique field after textile fabric, what be specifically related to is the processing method of suede nap epithelial membrane coating, to improve the flexible energy of the antitorque curvature of chamois flannel face fabric epithelial membrane coating, improves 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, at piece market suede nap, become being commonly called as of various flock suedes, below said suede nap be exactly this flock suede fabric.It is to utilize natural fiber or natural fiber and superfine fibre interwoven to make fabric face form the forward fabric of the smooth filoplume style of type through processing for suede nap, and its unique style is liked by consumer deeply.
Flock suede dry method epithelial membrane coating is to use direct coating apparatus, with the form of blade coating, coating adhesive is coated in to 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 is formed coating epithelium, and outward appearance approaches corium very much.
Prior art flock suede dry method epithelial membrane coating is to use polyacrylate or the direct coating of polyurethane coating glue, and because the filoplume on suede nap surface makes coating epithelium fluffy thick, during use, coating epithelium repeatedly bends and is prone to crack.Especially under cryogenic conditions, coating
skinfilm hardening, crisp, is more prone to 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 100 parts of polyurethane resins and 0.5～1 part of mixing and stirring of polyurethane thickener, then adding melamine crosslinkers 0.5～2, mill base to use in right amount dispersion machine to stir makes the abundant entrained air of liquid reach the state of foaming, then after adding 4～10 parts of foam stabilisers to stir, adding 1～3 part of blowing agent to stir foams again, volume after foaming is added before blowing agent relatively and increase to 1-3 doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 100 parts, unglazed coating glue, 5～10 parts of amino modified polysiloxane, 0.5～2 part of melamine crosslinkers, mill base adds dispersion machine to stir in right amount successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃～140 ℃ bake 1～2 minute, do weightening finish 5-8g/ ㎡, then use calender calendering, pressure 70～90 ㎏/㎝, 70～80 ℃ of temperature, speed 25～35m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering to 160
~170 ℃ bake 1
~2 minutes, dry weightening finish 7-10g/ ㎡.
It can be to apply twice that above-mentioned surface layer gluing applies, and 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.
Technique of the present invention simply, is easily gone, the flexible energy of the antitorque curvature of fabric, elasticity and pliability have been improved, 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 consists of soft section and hard section, and incompatible on thermodynamics causes its pliability, vitrification point, hot strength, flex stiffiness superior, and its ehter bond cohesive energy is low, and easily rotation, compliance are good.
The present invention is by processing that bottom gluing is foamed, due to the effect of stirring with blowing agent (surfactant), make gas dispersion among polyurethane resin, form microvesicle aggregation, and mutually isolate with resin film, adjacent microvesicle is assembled formation foam mutually.After applying suede nap surface, bake in process, the part air being present in bubble is discharged from bottom gluing positive and negative, glued membrane is formed and have the micropore shape of digesting.In addition, due to the iris action of bubble, bottom gluing is difficult for being penetrated into fabric basic unit inside while applying, and the suede nap fabric after primary coat is not inflexible like this, soft flexible.The structural formula that does not destroy EU is processed in this foaming, therefore therefore do not change the some advantages of EU.
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 of C-C key rotation is larger, and the resistance ratios C-C that EU ehter bond after foaming rotates freely is little, and ehter bond separately just can increase the compliance of macromolecular chain by C-C.Therefore softness, elasticity during bottom gluing low temperature, antitorque curvature is flexible can be still good.
Surface layer gluing does not take foaming to process, because foaming can affect the film forming of surface layer gluing.Surface layer gluing adds amino modified polysiloxane, in course of reaction, can form carbamate, contributes to form EU macromolecular network structure, and network structure can strengthen the brute force of film.Conventionally in amido silicon oil, contain in a plurality of hydroxyl reactions cross-linking reaction occurs, hot strength (mechanical property) can effectively improve, the flexible energy of antitorque curvature that has greatly improved 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 has sub-chain motion when temperature is reduced to-136 ℃, has also possessed cold tolerance simultaneously.
The specific embodiment
Embodiment 1
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By 100 parts of polyurethane resins and 0.5 part of mixing and stirring of polyurethane thickener, then add 0.5 part of melamine crosslinkers, 5 parts of mill bases, using dispersion machine to stir makes the abundant entrained air of liquid reach the state of foaming, then after adding 4 parts of foam stabilisers to stir, add again 1 part of blowing agent to stir, make the volume after foaming relatively add the front 1-1.5 of increase of blowing agent doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 5 parts, 100 parts, unglazed coating glue, 5 parts of amino modified polysiloxane, 2 parts of melamine crosslinkers, mill base adds dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ bake 1.5min, dry weightening finish 8g/ ㎡.
Embodiment 2
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By 100 parts of polyurethane resins and 0.7 part of mixing and stirring of polyurethane thickener, then add 0.8 part of melamine crosslinkers, 5 parts of mill bases, using dispersion machine to stir makes the abundant entrained air of liquid reach the state of foaming, then after adding 6 parts of foam stabilisers to stir, add again 1.5 parts of blowing agents to stir, volume after foaming is added before blowing agent relatively and increase to 1.5-2 doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 5 parts, 100 parts, unglazed coating glue, 5 parts of amino modified polysiloxane, 1 part of melamine crosslinkers, mill base adds dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ bake 1.5min, dry weightening finish 7g/ ㎡.
Embodiment 3
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By 100 parts of polyurethane resins and 0.7 part of mixing and stirring of polyurethane thickener, then add 1 part of melamine crosslinkers, 5 parts of mill bases, using dispersion machine to stir makes the abundant entrained air of liquid reach the state of foaming, then after adding 8 parts of foam stabilisers to stir, add again 1.5 parts of blowing agents to stir, volume after foaming is added before blowing agent relatively and increase to 1.5-2 doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 5 parts, 100 parts, unglazed coating glue, 10 parts of amino modified polysiloxane, 1 part of melamine crosslinkers, mill base adds dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5min, dry weightening finish 7g/ ㎡ left and right, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Embodiment 4
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By 100 parts of polyurethane resins and 0.8 part of mixing and stirring of polyurethane thickener, then add 1.5 parts of melamine crosslinkers, 5 parts of mill bases, using dispersion machine to stir makes the abundant entrained air of liquid reach the state of foaming, then after adding 8 parts of foam stabilisers to stir, add again 2 parts of blowing agents to stir, make the volume after foaming relatively add the front 2-2.5 of increase of blowing agent doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 5 parts, 100 parts, unglazed coating glue, 10 parts of amino modified polysiloxane, 0.5 part of melamine crosslinkers, mill base adds dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 8g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ bake 1.5 minutes, dry weightening finish 10g/ ㎡.
Embodiment 5
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By 100 parts of polyurethane resins and 1 part of mixing and stirring of polyurethane thickener, then add 1.5 parts of melamine crosslinkers, 5 parts of use dispersion machines of mill base to stir and make the abundant entrained air of liquid reach the state of foaming, then after adding 10 parts of foam stabilisers to stir, add again 3 parts of blowing agents to stir, make the volume after foaming relatively add the front 2.5-3 of increase of blowing agent doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 5 parts, 100 parts, unglazed coating glue, 1 part of melamine crosslinkers, mill base adds dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 8g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ bake 1.5 minutes, dry weightening finish 10g/ ㎡.
This embodiment surface layer gluing does not add amino modified polysiloxane, and cold tolerance is not improved.
Embodiment 6
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation:
By 100 parts of polyurethane resins and 0.7 part of mixing and stirring of polyurethane thickener, then add 1 part of melamine crosslinkers, 5 parts of use dispersion machines of mill base to stir and make the abundant entrained air of liquid reach the state of foaming, then after adding 6 parts of foam stabilisers to stir, add again 1.5 parts of blowing agents to stir, make the volume after foaming relatively add the front 1.5-2 of increase of blowing agent doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 5 parts, 100 parts, unglazed coating glue, 10 parts of amino modified polysiloxane, 1 part of melamine crosslinkers, mill base adds dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 7g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, face is coated with two-layer, and 165 ℃ bake 1.5 minutes, every layer of dry weightening finish 10g/ ㎡.
This embodiment face is coated with two-layer epithelium sense to be strengthened, and the flexible energy of antitorque curvature is good.
The chamois flannel face fabric specification that above-described embodiment 1-6 is used 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.
Adopt prior art suede nap epithelial membrane coating processing method to test:
Experimental example 1
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by 100 parts of polyurethane resins and 0.5 part of mixing and stirring of polyurethane thickener, then add 0.5 part of melamine crosslinkers, 5 parts of mill bases, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 5 parts, 100 parts, the unglazed coating glue that will resist cold, 2 parts of crosslinking agents, mill base add dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ 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 100 parts of polyurethane resins and 0.7 part of mixing and stirring of polyurethane thickener, then add 0.8 part of melamine crosslinkers, 5 parts of mill bases, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 5 parts, 100 parts, the unglazed coating glue that will resist cold, 1 part of crosslinking agent, mill base add dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 5g/ ㎡, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ bake 1.5min, dry weightening finish 7g/ ㎡.
Experimental example 3
(1) epithelial membrane coating glue preparation, weight proportion:
(1-1) bottom gluing preparation: by 100 parts of polyurethane resins and 0.7 part of mixing and stirring of polyurethane thickener, then add 1 part of melamine crosslinkers, 5 parts of mill bases, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 5 parts, 100 parts, the unglazed coating glue that will resist cold, 1 part of crosslinking agent, mill base add dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 7g/ ㎡ left and right, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ 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 100 parts of polyurethane resins and 0.8 part of mixing and stirring of polyurethane thickener, then add 1.5 parts of melamine crosslinkers, 5 parts of mill bases, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 5 parts, 100 parts, the unglazed coating glue that will resist cold, 0.5 part of crosslinking agent, mill base add dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 8g/ ㎡ left and right, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ 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 100 parts of polyurethane resins and 1 part of mixing and stirring of polyurethane thickener, then add 1.5 parts of melamine crosslinkers, 5 parts of mill bases, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 5 parts, 100 parts, the unglazed coating glue that will resist cold, 1 part of crosslinking agent, mill base add dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 8g/ ㎡ left and right, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, 165 ℃ 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 100 parts of polyurethane resins and 0.7 part of mixing and stirring of polyurethane thickener, then add 1 part of melamine crosslinkers, 5 parts of mill bases, after using dispersion machine to stir, stand-by;
(1-2) surface layer gluing preparation: 5 parts, 100 parts, the unglazed coating glue that will resist cold, 10 parts of amino modified polysiloxane, 1 part of crosslinking agent, mill base add dispersion machine to stir successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃ bake 1.5 minutes, dry weightening finish 7g/ ㎡ left and right, then use calender calendering, pressure 70 ㎏/㎝, 80 ℃ of temperature, speed 30m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering, face is coated with two-layer, and 165 ℃ bake 1.5 minutes, every layer of dry weightening finish 10g/ ㎡.
This experimental example surface layer gluing adds amino modified polysiloxane, and cold tolerance obviously improves relatively.
The chamois flannel face fabric specification that above-mentioned experimental example 1-6 is used is 70D*225/20*3*31;
The polyurethane resin that above-mentioned experimental example 1-6 is used, is selected from Liaoning Sunichem Co., Ltd.'s product: polyurethane resin FS-0501;
The cold-resistant unglazed coating glue using 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 is used, 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 detects index 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 ℃) | 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 ℃) | Soft | Soft | Soft | Soft | Slightly hardening | Soft |
Experimental example 1-6 product detects index 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 ℃) | 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 ℃) | Hardening | Hardening | Hardening | Hardening | Hardening | Slightly hardening |
Antitorque curvature is flexible: according to the standard test of the flexible energy of the antitorque curvature of FZ/T 01052-1998 coated fabric;
Dry, wet friction color fastness: press GB/T3920-83 and measure;
Colour fastness to rubbing: press GB/T8427-2008 and measure;
Lower temperature resistance: the mensuration of pressing FZ/T 01007-2008 coated fabric lower temperature resistance.
From above testing result, can find out, the present invention uses foaming processing and adds amino modified polysiloxane, can significantly improve softness, elasticity, the flexible energy of antitorque curvature of suede nap epithelial membrane coating fabric, improve taking, and 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 100 parts of polyurethane resins and 0.5～1 part of mixing and stirring of polyurethane thickener, then adding melamine crosslinkers 0.5～2, mill base to use in right amount dispersion machine to stir makes the abundant entrained air of liquid reach the state of foaming, then after adding 4～10 parts of foam stabilisers to stir, adding 1～3 part of blowing agent to stir foams again, volume after foaming is added before blowing agent relatively and increase to 1-3 doubly, stand-by;
(1-2) surface layer gluing preparation:
To resist cold 100 parts, unglazed coating glue, 5～10 parts of amino modified polysiloxane, 0.5～2 part of melamine crosslinkers, mill base adds dispersion machine to stir in right amount successively, stand-by;
(2) coating: adopt the direct coating of dry method;
(2-1) with floating cutter formula coating machine, (1-1) bottom gluing is coated on chamois flannel face fabric, 130 ℃～140 ℃ bake 1～2 minute, do weightening finish 5-8g/ ㎡, then use calender calendering, pressure 70～90 ㎏/㎝, 70～80 ℃ of temperature, speed 25～35m/min;
(2-2) with floating cutter formula coating machine, (1-2) surface layer gluing is coated on the primer coating glue after above-mentioned calendering to 160
~170 ℃ bake 1
~2 minutes, dry weightening finish 7-10g/ ㎡;
It can be to apply twice that above-mentioned surface layer gluing applies;
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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| 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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|---|---|
| CN103657981B (en) | 2015-04-01 |
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