CN104975515A - Color changeable artificial leather, and preparation method and color changing method thereof - Google Patents
Color changeable artificial leather, and preparation method and color changing method thereof Download PDFInfo
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- CN104975515A CN104975515A CN201510305279.9A CN201510305279A CN104975515A CN 104975515 A CN104975515 A CN 104975515A CN 201510305279 A CN201510305279 A CN 201510305279A CN 104975515 A CN104975515 A CN 104975515A
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Abstract
The invention relates to a color changeable artificial leather, including a surface layer. The surface layer is prepared from the following raw materials by weight: 40-50 parts of polyurethane resin, 30-35 parts of an organic solvent, 10-15 parts of a silica powder discoloration powder, 5-10 parts of a matting powder, 0.5-1 part of a leveling agent and 3-5 parts of a PU toner. The invention also relates to a preparation method of the color changeable artificial leather and the color changing method of the color changeable artificial leather. The color changeable artificial leather of the invention under pressure or high temperature can change color and has the advantage of enduring color changing effect.
Description
Technical field
The present invention relates to leather processing technique field, particularly a kind of artificial leather and preparation method thereof of changeable colour and color changing method.
Background technology
Artificial leather of the prior art comprises polyurethane resin surface layer, Corvic surface layer, polyurethane binder and artificial leather base fabric, and the formula of polyurethane resin surface layer is: polyurethane resin 100 parts, organic solvent (MEK or DMF) 80-100 part and PU mill base 5-10 part; The formula of Corvic surface layer is: Corvic 100 parts, dioctyl phthalate 70-90 part and filler (CaCO
3) 60-80 part.Above-mentioned artificial leather does not have the performance of variable color.
Application number be 201110315112.2 Chinese patent application disclose a kind of color changing type PVC artificial leather, and variable color slurry adopts doctor blade process to make it coat leather surface by concrete this PVC artificial leather that discloses, described variable color slurry is made into by the component of following weight portion: benzene-free thinner 70 ~ 80, the cured powder 0.5 ~ 5 of variable color, ink 5 ~ 10, dispersant 0.1 ~ 0.5 and heat setting vresin 15 ~ 25.Namely aforementioned patents disclose with the cured powder of variable color as raw material makes artificial leather possess the performance of variable color.
But, known according to above-mentioned patent specification the 0031st section, the discoloration of the artificial leather that above-mentioned patent obtains is also unstable, when it is under stretching, jack-up, the external stress effect such as bending, folding, the position producing deformation will present change color, after cancelling external force, the color of leather surface can be restored as before.Therefore, the artificial leather that above-mentioned patent obtains cannot obtain the permanent color changeable effect after pressure change.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of cancel external force after discoloration still can keep the artificial leather of stable changeable colour, preparation method and the color changing method of the artificial leather of above-mentioned changeable colour are provided further.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of artificial leather of changeable colour, comprise surface layer, described surface layer comprises following raw material and is prepared from: polyurethane resin 40-50 part, organic solvent 30-35 part, silicon dioxide discoloration powder 10-15 part, flatting silica 5-10 part, levelling agent 0.5-1 part and PU toner 3-5 part.
The invention still further relates to a kind of preparation method of artificial leather of above-mentioned changeable colour, comprise surface layer forming step, described surface layer forming step is: mixed by face stock, form surface layer slurry, described surface layer slurry is coated in release liners, dry 40-50S under 130-160 DEG C of condition after, obtains surface layer.
The invention still further relates to a kind of color changing method of artificial leather of above-mentioned changeable colour, it is characterized in that, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 1-2min, then the artificial leather of the changeable colour after immersion is dried 2-4min under 140-150 DEG C of condition; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 160-180 DEG C of condition, and the described hot pressure time is 1-2S.
The beneficial effect of the artificial leather of changeable colour of the present invention is:
(1) the artificial leather design of changeable colour of the present invention comprises surface layer, nexine and foaming layer, and opposite layer component designs, silica (as color-change powder) and PU toner is added in surface layer, make top layer possess colourability, make artificial leather surface be under pressure or obtain color changeable effect under high temperature action;
(2) face stock comprises and adds silica (as color-change powder), flatting silica and PU toner, by the acting in conjunction of silica, flatting silica and PU toner, surface layer is being under pressure or color changeable effect under high temperature action can remain unchanged, i.e. the stability that had of color changeable effect.
The beneficial effect of the preparation method of the artificial leather of changeable colour of the present invention is:
The drying condition of surface layer is: 130-160 DEG C, 40-50S, by the setting of above-mentioned drying condition, the surface layer moisture of the artificial leather obtained is tending towards in optimum range, thus on the one hand for color changeable effect provides good basic condition, on the one hand the product stability of artificial leather is protected.
The beneficial effect of the color changing method of the artificial leather of changeable colour of the present invention is: have the advantage that color changeable effect is even, method simple, be easy to application.
Detailed description of the invention
By describing technology contents of the present invention in detail, being realized object and effect, be explained below in conjunction with embodiment.
The design of most critical of the present invention is: by the design of the surface layer component of silica, flatting silica and PU toner, makes surface layer be under pressure or have color changeable effect under high temperature action, and color changeable effect can remain unchanged simultaneously.
The invention provides a kind of artificial leather of changeable colour, comprise surface layer, described surface layer comprises following raw material and is prepared from: polyurethane resin 40-50 part, organic solvent 30-35 part, silicon dioxide discoloration powder 10-15 part, flatting silica 5-10 part, levelling agent 0.5-1 part and PU toner 3-5 part.
From foregoing description, beneficial effect of the present invention is:
(1) the artificial leather design of changeable colour of the present invention comprises surface layer, nexine and foaming layer, and opposite layer component designs, silica (as color-change powder) and PU toner is added in surface layer, make top layer possess colourability, make artificial leather surface be under pressure or obtain color changeable effect under high temperature action;
(2) face stock comprises and adds silica (as color-change powder), flatting silica and PU toner, by the acting in conjunction of silica, flatting silica and PU toner, surface layer is being under pressure or color changeable effect under high temperature action can remain unchanged, i.e. the stability that had of color changeable effect.
Further, the raw material that described surface layer comprises following percentage by weight is prepared from: polyurethane resin 40-50%, organic solvent 30-35%, silicon dioxide discoloration powder 10-15%, flatting silica 5-10%, levelling agent 0.5-1% and PU toner 3-5%.
Seen from the above description, preferably, the raw material that surface layer comprises above-mentioned percentage by weight is prepared from, and the surface layer of acquisition has color changeable effect obviously and keep non-fading effect lastingly.
Further, also comprise nexine, described nexine comprises following raw material and is prepared from: Corvic 98-102 part, dioctyl phthalate 60-70 part, filler 10-20 part, heat stabilizer 2-3 part and PVC color 5-10 part;
Further, also comprise foaming layer, described foaming layer comprises following raw material and is prepared from: Corvic 98-102 part, dioctyl phthalate 70-90 part, filler 60-80 part, stabilizing agent 3-4 part, blowing agent 2-4 part and PVC color 4-8 part.
Seen from the above description, PVC color and heat stabilizer is added in nexine, nexine is made to possess heat endurance and certain colourity, PVC color and stabilizing agent is added in foaming layer, foaming layer is made to possess heat endurance and certain colourity, by the acting in conjunction of surface layer, nexine and foaming layer, artificial leather surface is made to be under pressure or to obtain better color changeable effect under high temperature action, simultaneously, the composition of nexine and foaming layer arranges the stability after making the variable color of whole man's fabricate-leather and improves, and ensures that whole man's fabricate-leather has certain colourity before variable color.
Further, in the raw material of surface layer of the present invention, nexine and foaming layer, organic solvent can select organic solvent conventional in prior art, be preferably dimethyl formamide (DMF), toluene (TOL) or MEK (MEK), described PU toner can select the PU toner purchased from new material Co., Ltd of HuaPu of Fujian Province; Described filler can select conventional leather filler, is preferably CaCO
3; Described heat stabilizer can select conventional leather heat stabilizer, be preferably Ba-Zn stabilizing agent, described stabilizing agent can select conventional leather stabilizing agent, is preferably KZn stabilizing agent, described blowing agent can select conventional blowing agent used for artificial leather, is preferably AC blowing agent.
Further, also comprise Ji Bu, described Ji Bu is bonding with foaming layer by adhesive, and described adhesive comprises following raw material and is prepared from: polyurethane binder 98-102 part and organic solvent 30-50 part.Seen from the above description, described adhesive can select conventional adhesive used for artificial leather, preferably, can adopt the adhesive comprising above-mentioned raw material and be prepared from, the surface contact performance of adhesive of the present invention and foaming layer effectively improves, thus has the good advantage of bonding effect.Wherein, polyurethane binder can select conventional polyurethane binder used for artificial leather, is preferably DY-5052 adhesive, and described organic solvent can select organic solvent conventional in prior art, is preferably dimethyl formamide.
The present invention also provides a kind of preparation method of artificial leather of above-mentioned changeable colour, comprises surface layer forming step, and described surface layer forming step is: mixed by face stock, form surface layer slurry, described surface layer slurry is coated in release liners, dry 40-50S under 130-160 DEG C of condition after, obtains surface layer.
The beneficial effect of the preparation method of the artificial leather of changeable colour of the present invention is:
The drying condition of surface layer is: 130-160 DEG C, 40-50S is by the setting of above-mentioned drying condition, the surface layer moisture of the artificial leather obtained is made to be tending towards in optimum range, thus on the one hand for color changeable effect provides good basic condition, on the one hand the product stability of artificial leather is protected.
Further, also comprise nexine forming step, described nexine forming step is: mixed by nexine raw material, forms nexine slurry, is coated on the surface layer slurry after oven dry, after drying 60-70S, obtains nexine under 140-170 DEG C of condition by described nexine slurry.
Further, also comprise foaming layer forming step, described foaming layer forming step is: mixed by foaming layer raw material, forms foaming layer slurry, is coated on by foaming layer slurry on the nexine slurry after oven dry, foamable reaction is carried out under 170-190 DEG C of condition, after foaming fully on foaming layer slurry application of adhesive, then foaming layer slurry is bonded by adhesive and base cloth, at 120-160 DEG C, dries 80-90S, release liners is peeled off, the artificial leather of obtained described changeable colour.
Seen from the above description, the drying condition of surface layer is: 130-160 DEG C, 40-50S, the drying condition of nexine is: 140-170 DEG C, 60-70S, drying condition after foaming layer and base cloth bond is: 120-160 DEG C, 80-90S, by the mating reaction of above-mentioned drying condition, the overall moisture of the surface layer of artificial leather making to obtain, nexine and foaming layer is tending towards in optimum range, thus on the one hand for color changeable effect provides more excellent basic condition, on the one hand the product stability of artificial leather is ensured further.
In addition, when the time of foamable reaction is 70-80S, foamable reaction fully carries out; Adhesive can select conventional adhesive used for artificial leather, preferably, described adhesive comprises following raw material and is prepared from: polyurethane binder 98-102 part and organic solvent 30-50 part, namely adopt the surface contact performance comprising adhesive that above-mentioned raw material is prepared from and foaming layer to effectively improve, thus there is the good advantage of bonding effect; Base cloth can select conventional artificial leather base fabric, and preferably, its material is textile material.
The present invention also provides a kind of color changing method of artificial leather of above-mentioned changeable colour, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 1-2min, then the artificial leather of the changeable colour after immersion is dried 2-4min under 140-150 DEG C of condition; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 160-180 DEG C of condition, and the described hot pressure time is 1-2S.
The beneficial effect of the color changing method of the artificial leather of changeable colour of the present invention is:
Can by first soaking the heat treated of the higher temperatures of carrying out the long period afterwards, make the artificial leather generation color changeable effect of described changeable colour, under the heat treated condition of said temperature and time, the surface of the artificial leather of described changeable colour becomes shallow white; Also by the high temperature hot pressure process of short period, the artificial leather generation color changeable effect of described changeable colour can be made; There is the advantage that color changeable effect is even, method simple, be easy to application.
Further, in step (1), first extruded by moisture with wringing machine by the artificial leather of the changeable colour after immersion, then dry, in step (2), described hot pressure adopts garment press to carry out.
Seen from the above description, the artificial leather of the changeable colour after immersion, through wringing machine process, by the moisture removal on artificial leather surface, thus provides good condition for heat treated; Hot pressure preferably adopts garment press to carry out.
Embodiments of the invention one are:
The artificial leather of a kind of changeable colour of the present embodiment, comprise surface layer, nexine and foaming layer successively from top to bottom, described surface layer comprises following raw material and is prepared from: polyurethane resin 40 parts, organic solvent 30 parts, 10 parts, silicon dioxide discoloration powder, flatting silica 5 parts, levelling agent 0.5 part and PU toner 3 parts; Described nexine comprises following raw material and is prepared from: Corvic 98 parts, dioctyl phthalate 60 parts, filler 10 parts, heat stabilizer 2 parts and PVC color 5 parts; Described foaming layer comprises following raw material and is prepared from: Corvic 98 parts, dioctyl phthalate 70 parts, filler 60 parts, stabilizing agent 3 parts, blowing agent 2 parts and PVC color 4 parts.Described organic solvent is dimethyl formamide (DMF), toluene (TOL) or MEK (MEK).Described levelling agent is A-375 levelling agent, and described filler is CaCO
3, described heat stabilizer is Ba-Zn stabilizing agent, and described stabilizing agent is KZn stabilizing agent, and described blowing agent is AC blowing agent.Also comprise Ji Bu, described Ji Bu is bonding with foaming layer by adhesive, and described adhesive comprises following raw material and is prepared from: polyurethane binder 98 parts and organic solvent 30 parts.Described polyurethane binder is DY-5052 adhesive, and described organic solvent is dimethyl formamide.
The preparation method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, according to the above ratio respectively by described surface layer, nexine and the mixing of foaming layer raw material, form surface layer slurry respectively, nexine slurry and foaming layer slurry, described surface layer slurry is coated in release liners, 40S is dried under 130 DEG C of conditions, described nexine slurry is coated on the surface layer slurry after oven dry, 60S is dried under 140 DEG C of conditions, foaming layer slurry is coated on the nexine slurry after oven dry, foamable reaction is carried out under 170 DEG C of conditions, after foaming fully on foaming layer slurry application of adhesive, then foaming layer slurry is bonded by adhesive and base cloth, 80S is dried at 120 DEG C, release liners is peeled off, the artificial leather of obtained described changeable colour.The time of described foamable reaction is 70S, and described adhesive comprises following raw material and is prepared from: polyurethane binder 98 parts and organic solvent 30 parts, the material of described base cloth is textile material.
The color changing method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 1min, then moisture is first extruded with wringing machine by the artificial leather of the changeable colour after immersion, then dry 2min under 140 DEG C of conditions; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 160 DEG C of conditions, and described hot pressure adopts garment press to carry out, and the described hot pressure time is 1S.
Embodiments of the invention two are:
The artificial leather of a kind of changeable colour of the present embodiment, comprise surface layer, nexine and foaming layer successively from top to bottom, described surface layer comprises following raw material and is prepared from: polyurethane resin 50 parts, organic solvent 35 parts, 15 parts, silicon dioxide discoloration powder, flatting silica 10 parts, levelling agent 1 part and PU toner 5 parts; Described nexine comprises following raw material and is prepared from: Corvic 102 parts, dioctyl phthalate 70 parts, filler 120 parts, heat stabilizer 3 parts and PVC color 10 parts; Described foaming layer comprises following raw material and is prepared from: Corvic 102 parts, dioctyl phthalate 90 parts, filler 80 parts, stabilizing agent 4 parts, blowing agent 4 parts and PVC color 8 parts.Described organic solvent is dimethyl formamide (DMF), toluene (TOL) or MEK (MEK).Described levelling agent is A-375 levelling agent, and described filler is CaCO
3, described heat stabilizer is Ba-Zn stabilizing agent, and described stabilizing agent is KZn stabilizing agent, and described blowing agent is AC blowing agent.Also comprise Ji Bu, described Ji Bu is bonding with foaming layer by adhesive, and described adhesive comprises following raw material and is prepared from: polyurethane binder 102 parts and organic solvent 50 parts.Described polyurethane binder is DY-5052 adhesive, and described organic solvent is dimethyl formamide.
The preparation method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, according to the above ratio respectively by described surface layer, nexine and the mixing of foaming layer raw material, form surface layer slurry respectively, nexine slurry and foaming layer slurry, described surface layer slurry is coated in release liners, 50S is dried under 160 DEG C of conditions, described nexine slurry is coated on the surface layer slurry after oven dry, 70S is dried under 170 DEG C of conditions, foaming layer slurry is coated on the nexine slurry after oven dry, foamable reaction is carried out under 190 DEG C of conditions, after foaming fully on foaming layer slurry application of adhesive, then foaming layer slurry is bonded by adhesive and base cloth, 90S is dried at 160 DEG C, release liners is peeled off, the artificial leather of obtained described changeable colour.The time of described foamable reaction is 80S, and described adhesive comprises following raw material and is prepared from: polyurethane binder 102 parts and organic solvent 50 parts, the material of described base cloth is textile material.
The color changing method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 2min, then moisture is first extruded with wringing machine by the artificial leather of the changeable colour after immersion, then dry 4min under 150 DEG C of conditions; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 180 DEG C of conditions, and described hot pressure adopts garment press to carry out, and the described hot pressure time is 2S.
Embodiments of the invention three are:
The artificial leather of a kind of changeable colour of the present embodiment, comprise surface layer, nexine and foaming layer successively from top to bottom, described surface layer comprises following raw material and is prepared from: polyurethane resin 45 parts, organic solvent 32 parts, 13 parts, silicon dioxide discoloration powder, flatting silica 8 parts, levelling agent 0.8 part and PU toner 4 parts; Described nexine comprises following raw material and is prepared from: Corvic 100 parts, dioctyl phthalate 65 parts, filler 15 parts, heat stabilizer 2.5 parts and PVC color 7 parts; Described foaming layer comprises following raw material and is prepared from: Corvic 100 parts, dioctyl phthalate 80 parts, filler 70 parts, stabilizing agent 3.5 parts, blowing agent 3 parts and PVC color 6 parts.Described organic solvent is dimethyl formamide (DMF), toluene (TOL) or MEK (MEK).Described levelling agent is A-375 levelling agent, and described filler is CaCO
3, described heat stabilizer is Ba-Zn stabilizing agent, and described stabilizing agent is KZn stabilizing agent, and described blowing agent is AC blowing agent.Also comprise Ji Bu, described Ji Bu is bonding with foaming layer by adhesive, and described adhesive comprises following raw material and is prepared from: polyurethane binder 100 parts and organic solvent 40 parts.Described polyurethane binder is DY-5052 adhesive, and described organic solvent is dimethyl formamide.
The preparation method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, according to the above ratio respectively by described surface layer, nexine and the mixing of foaming layer raw material, form surface layer slurry respectively, nexine slurry and foaming layer slurry, described surface layer slurry is coated in release liners, 45S is dried under 150 DEG C of conditions, described nexine slurry is coated on the surface layer slurry after oven dry, 65S is dried under 160 DEG C of conditions, foaming layer slurry is coated on the nexine slurry after oven dry, foamable reaction is carried out under 180 DEG C of conditions, after foaming fully on foaming layer slurry application of adhesive, then foaming layer slurry is bonded by adhesive and base cloth, 85S is dried at 140 DEG C, release liners is peeled off, the artificial leather of obtained described changeable colour.The time of described foamable reaction is 75S, and described adhesive comprises following raw material and is prepared from: polyurethane binder 100 parts and organic solvent 40 parts, the material of described base cloth is textile material.
The color changing method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 1.5min, then moisture is first extruded with wringing machine by the artificial leather of the changeable colour after immersion, then dry 3min under 145 DEG C of conditions; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 170 DEG C of conditions, and described hot pressure adopts garment press to carry out, and the described hot pressure time is 1.5S.
Embodiments of the invention four are:
The raw material that only described surface layer comprises following percentage by weight is prepared from: polyurethane resin 40%, organic solvent 30%, silicon dioxide discoloration powder 10%, flatting silica 5%, levelling agent 0.5% are different with PU toner 3%, and other are identical with embodiment one.
Embodiments of the invention five are:
The raw material that only described surface layer comprises following percentage by weight is prepared from: polyurethane resin 50%, organic solvent 35%, silicon dioxide discoloration powder 15%, flatting silica 10%, levelling agent 1% and PU toner 5% are different, and other are identical with embodiment one.
Embodiments of the invention six are:
The raw material that only described surface layer comprises following percentage by weight is prepared from: polyurethane resin 45%, organic solvent 33%, silicon dioxide discoloration powder 13%, flatting silica 7%, levelling agent 0.8% and PU toner 4% are different, and other are identical with embodiment one.
Embodiments of the invention seven are:
The artificial leather of a kind of changeable colour of the present embodiment, comprise surface layer, nexine and foaming layer successively from top to bottom, described surface layer is prepared from by the raw material of following percentage by weight: polyurethane resin 40-50 part, organic solvent 30-35 part, silicon dioxide discoloration powder 10-15 part, flatting silica 5-10 part, levelling agent 0.5-1 part and PU toner 3-5 part; Described nexine is prepared from by following raw material: Corvic 98-102 part, dioctyl phthalate 60-70 part, filler 10-20 part, heat stabilizer 2-3 part and PVC color 5-10 part; Described foaming layer is prepared from by following raw material: Corvic 98-102 part, dioctyl phthalate 70-90 part, filler 60-80 part, stabilizing agent 3-4 part, blowing agent 2-4 part and PVC color 4-8 part.Described organic solvent is dimethyl formamide (DMF), toluene (TOL) or MEK (MEK).Described levelling agent is A-375 levelling agent, and described filler is CaCO
3, described heat stabilizer is Ba-Zn stabilizing agent, and described stabilizing agent is KZn stabilizing agent, and described blowing agent is AC blowing agent.Also comprise Ji Bu, described Ji Bu is bonding with foaming layer by adhesive, and described adhesive is prepared from by following raw material: polyurethane binder 98-102 part and organic solvent 30-50 part.Described polyurethane binder is DY-5052 adhesive, and described organic solvent is dimethyl formamide.
The preparation method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, according to the above ratio respectively by described surface layer, nexine and the mixing of foaming layer raw material, form surface layer slurry respectively, nexine slurry and foaming layer slurry, described surface layer slurry is coated in release liners, 40-50S is dried under 130-160 DEG C of condition, described nexine slurry is coated on the surface layer slurry after oven dry, 60-70S is dried under 140-170 DEG C of condition, foaming layer slurry is coated on the nexine slurry after oven dry, foamable reaction is carried out under 170-190 DEG C of condition, after foaming fully on foaming layer slurry application of adhesive, then foaming layer slurry is bonded by adhesive and base cloth, 80-90S is dried at 120-160 DEG C, release liners is peeled off, the artificial leather of obtained described changeable colour.The time of described foamable reaction is 70-80S, and described adhesive is prepared from by following raw material: polyurethane binder 98-102 part and organic solvent 30-50 part, and the material of described base cloth is textile material.
The color changing method of the artificial leather of a kind of above-mentioned changeable colour of the present embodiment, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 1-2min, then moisture is first extruded with wringing machine by the artificial leather of the changeable colour after immersion, then dry 2-4min under 140-150 DEG C of condition; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 160-180 DEG C of condition, and described hot pressure adopts garment press to carry out, and the described hot pressure time is 1-2S.
Measure of merit
The artificial leather [not carrying out step (1) and step (2) process] of changeable colour embodiment one to embodiment seven obtained carries out color changeable effect test, and test result is as shown in table 1.Table 1 is the color changeable effect table of the artificial leather of changeable colour of the present invention.
Table 1
As shown in Table 1, the artificial leather of changeable colour of the present invention can obtain the change of the color such as shallow white, rice white, the blue look of powder, powder green, pink, ecru, light brown, and color changeable effect is sustained.
The application of the artificial leather of changeable colour of the present invention:
Concrete, certain mould can be adopted to carry out hot pressure to the surface of artificial leather, utilize the lasting discoloration of the artificial leather of changeable colour of the present invention under high moderate pressure effect, thus obtain specific pattern, such as product LOGO etc. on artificial leather surface; Also can adopt the mode of hyperthermia drying process, by utilizing the lasting discoloration of the artificial leather of changeable colour of the present invention under high temperature action, artificial leather surface be obtained and specifically shows look, thus as required artificial leather surface is decorated or other process.
In sum, the artificial leather of changeable colour provided by the invention is being under pressure or can variable color under high temperature action, and color changeable effect is sustained.The overall moisture of the artificial leather of preparation method's acquisition of the artificial leather of changeable colour of the present invention is tending towards optimum range, has the advantage that product stability is good.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing description of the present invention to do, or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the artificial leather of a changeable colour, comprise surface layer, it is characterized in that, described surface layer comprises following raw material and is prepared from: polyurethane resin 40-50 part, organic solvent 30-35 part, silicon dioxide discoloration powder 10-15 part, flatting silica 5-10 part, levelling agent 0.5-1 part and PU toner 3-5 part.
2. the artificial leather of changeable colour according to claim 1, it is characterized in that, the raw material that described surface layer comprises following percentage by weight is prepared from: polyurethane resin 40-50%, organic solvent 30-35%, silicon dioxide discoloration powder 10-15%, flatting silica 5-10%, levelling agent 0.5-1% and PU toner 3-5%.
3. the artificial leather of changeable colour according to claim 1, it is characterized in that, also comprise nexine, described nexine comprises following raw material and is prepared from: Corvic 98-102 part, dioctyl phthalate 60-70 part, filler 10-20 part, heat stabilizer 2-3 part and PVC color 5-10 part.
4. the artificial leather of changeable colour according to claim 3, it is characterized in that, also comprise foaming layer, described foaming layer comprises following raw material and is prepared from: Corvic 98-102 part, dioctyl phthalate 70-90 part, filler 60-80 part, stabilizing agent 3-4 part, blowing agent 2-4 part and PVC color 4-8 part.
5. the artificial leather of changeable colour according to claim 4, it is characterized in that, also comprise Ji Bu, described Ji Bu is bonding with foaming layer by adhesive, and described adhesive comprises following raw material and is prepared from: polyurethane binder 98-102 part and organic solvent 30-50 part.
6. the preparation method of the artificial leather of the changeable colour described in a claim 1-5 any one, comprise surface layer forming step, it is characterized in that, described surface layer forming step is: mixed by face stock, form surface layer slurry, described surface layer slurry is coated in release liners, dry 40-50S under 130-160 DEG C of condition after, obtains surface layer.
7. the preparation method of the artificial leather of changeable colour according to claim 6, it is characterized in that, also comprise nexine forming step, described nexine forming step is: mixed by nexine raw material, form nexine slurry, described nexine slurry is coated on the surface layer slurry after oven dry, dry 60-70S under 140-170 DEG C of condition after, obtains nexine.
8. the preparation method of the artificial leather of changeable colour according to claim 7, it is characterized in that, also comprise foaming layer forming step, described foaming layer forming step is: mixed by foaming layer raw material, form foaming layer slurry, foaming layer slurry is coated on the nexine slurry after oven dry, foamable reaction is carried out under 170-190 DEG C of condition, after foaming fully on foaming layer slurry application of adhesive, then foaming layer slurry is bonded by adhesive and base cloth, at 120-160 DEG C, dry 80-90S, release liners is peeled off, the artificial leather of obtained described changeable colour.
9. the color changing method of the artificial leather of the changeable colour according to claim 1-5 any one, it is characterized in that, comprise the following steps (1) or step (2), described step (1) is: be soaked in water by the artificial leather of described changeable colour, described soak time is 1-2min, then the artificial leather of the changeable colour after immersion is dried 2-4min under 140-150 DEG C of condition; Described step (2) is: the artificial leather of described changeable colour is carried out hot pressure under 160-180 DEG C of condition, and the described hot pressure time is 1-2S.
10. the color changing method of the artificial leather of changeable colour according to claim 9, is characterized in that, in step (1), moisture is first extruded with wringing machine by the artificial leather of the changeable colour after immersion, dry, in step (2), described hot pressure adopts garment press to carry out again.
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| CN105133364A (en) * | 2015-10-22 | 2015-12-09 | 福建宝利特科技股份有限公司 | Allochroic artificial leather and preparation method thereof |
| CN105568699A (en) * | 2015-12-21 | 2016-05-11 | 福建宝利特科技股份有限公司 | Artificial leather without base cloth and making method of artificial leather |
| CN107988813A (en) * | 2017-12-11 | 2018-05-04 | 福建宝利特科技股份有限公司 | A kind of heat discoloration artificial leather and preparation method thereof |
| CN108049200A (en) * | 2018-01-29 | 2018-05-18 | 广东溢达纺织有限公司 | Hot pressing discoloration layer structure, hot pressing discoloration synthetic leather and preparation method thereof |
| CN109749529A (en) * | 2018-12-24 | 2019-05-14 | 清远市美佳乐环保新材股份有限公司 | One kind non-reversible heat discoloration inorganic agent used for artificial leather and its application method |
| CN110525003A (en) * | 2019-08-27 | 2019-12-03 | 江苏尚科聚合新材料有限公司 | A kind of automobile-used discoloration artificial leather of PU base and preparation method thereof |
| CN110924179A (en) * | 2019-12-09 | 2020-03-27 | 福建省睿星纺织科技有限公司 | Skin-feel fabric with color-changing effect and production process thereof |
| CN110952340A (en) * | 2019-12-09 | 2020-04-03 | 福建省睿星纺织科技有限公司 | Novel fabric with stretching, twisting and color changing effects and production process thereof |
| CN115368693A (en) * | 2022-09-30 | 2022-11-22 | 金发科技股份有限公司 | High-hardness gradient transparent PVC material and preparation method and application thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105133364A (en) * | 2015-10-22 | 2015-12-09 | 福建宝利特科技股份有限公司 | Allochroic artificial leather and preparation method thereof |
| CN107700228B (en) * | 2015-12-21 | 2019-05-10 | 福建宝利特科技股份有限公司 | The artificial leather and preparation method thereof of the high no base fabric of tolerable temperature |
| CN105568699A (en) * | 2015-12-21 | 2016-05-11 | 福建宝利特科技股份有限公司 | Artificial leather without base cloth and making method of artificial leather |
| CN105568699B (en) * | 2015-12-21 | 2017-10-17 | 福建宝利特科技股份有限公司 | A kind of artificial leather without base fabric and preparation method thereof |
| CN107604681A (en) * | 2015-12-21 | 2018-01-19 | 福建宝利特科技股份有限公司 | Artificial leather of the high no base fabric of tearing strength and preparation method thereof |
| CN107700228A (en) * | 2015-12-21 | 2018-02-16 | 福建宝利特科技股份有限公司 | Artificial leather of the high no base fabric of tolerable temperature and preparation method thereof |
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| CN107988813A (en) * | 2017-12-11 | 2018-05-04 | 福建宝利特科技股份有限公司 | A kind of heat discoloration artificial leather and preparation method thereof |
| CN108049200A (en) * | 2018-01-29 | 2018-05-18 | 广东溢达纺织有限公司 | Hot pressing discoloration layer structure, hot pressing discoloration synthetic leather and preparation method thereof |
| CN108049200B (en) * | 2018-01-29 | 2021-03-26 | 广东溢达纺织有限公司 | Hot-pressing color-changing laminated structure, hot-pressing color-changing synthetic leather and preparation method thereof |
| CN109749529A (en) * | 2018-12-24 | 2019-05-14 | 清远市美佳乐环保新材股份有限公司 | One kind non-reversible heat discoloration inorganic agent used for artificial leather and its application method |
| CN110525003A (en) * | 2019-08-27 | 2019-12-03 | 江苏尚科聚合新材料有限公司 | A kind of automobile-used discoloration artificial leather of PU base and preparation method thereof |
| CN110924179A (en) * | 2019-12-09 | 2020-03-27 | 福建省睿星纺织科技有限公司 | Skin-feel fabric with color-changing effect and production process thereof |
| CN110952340A (en) * | 2019-12-09 | 2020-04-03 | 福建省睿星纺织科技有限公司 | Novel fabric with stretching, twisting and color changing effects and production process thereof |
| CN115368693A (en) * | 2022-09-30 | 2022-11-22 | 金发科技股份有限公司 | High-hardness gradient transparent PVC material and preparation method and application thereof |
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