CN109081937A - A kind of retouching for TPU expanded bead formed body paints color method - Google Patents
A kind of retouching for TPU expanded bead formed body paints color method Download PDFInfo
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- CN109081937A CN109081937A CN201810547758.5A CN201810547758A CN109081937A CN 109081937 A CN109081937 A CN 109081937A CN 201810547758 A CN201810547758 A CN 201810547758A CN 109081937 A CN109081937 A CN 109081937A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/224—Surface treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/228—Forming foamed products
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Paints Or Removers (AREA)
- Coloring (AREA)
Abstract
The present invention discloses a kind of retouching for TPU expanded bead formed body and paints color method, includes the following steps: 1. to be surface-treated TPU expanded bead formed body using inorganic agent；2. the solution of pigment, resin and solvent preparation to be coated in the outer surface of TPU expanded bead formed body material by the method for retouching paint；3. the pigment for being coated in TPU expanded bead molding external surface and resin are precipitated and are solidified by heat treatment, to be prepared into TPU expanded bead formed body water-fastness, that mechanical resistant abrasion, color is evenly dispersed.Compared with prior art, present invention substantially reduces the dosages of pigment, it is ensured that the uniformity of color.
Description
Present patent application is the divisional application of Chinese Patent Application No. 201610333151.8, the application number of original application
It is 201610333151.8, the applying date is on May 19th, 2016, a kind of entitled colouring of TPU expanded bead formed body
Method.
Technical field
The present invention relates to the dyeing of TPU expanded bead formed body material, the color method painted, retouch paint, by pigment
Pigment in solution is coated in the outer surface of material in a manner of being infected with, paint, retouch paint, will by the inorganic agent in pigment solution
Pigment and the TPU expanded bead formed body for coating it establish firm bonding, thus be prepared into colorful various colors, washing and
Non-fading TPU expanded bead formed body material, is particularly suitable for sport footwear footwear material field after mechanical friction.
Background technique
TPU possess high abrasion, high resiliency, it is antifatigue, resistant to chemical etching many advantages, such as and be widely used in footwear material.With
TPU is that the low-density foamed material of colour of substrate preparation is expected to substitution EVA material foamed material applied to high-performance footwear material field.
It is known using the method that chemical foaming agent prepares TPU foamed material.It is added and closes in TPU chemical blowing system
Suitable pigment can assign TPU foamed material various colors, but there is a problem of similar, such as preparation to EVA resin foamed material
Process not environmentally with need the problem of being chemically crosslinked etc..In addition to this, it is also deposited using TPU foamed material prepared by chemical foaming agent
In the problem that foam structure is coarse, density is big, expansion multiplying power is low, therefore there is no large-scale promotions on the market for this technology.
In order to eliminate the defect, patent document WO2000/44821A, WO2004/108811A disclose expended microsphere system
The method of standby TPU foamed material.This method mixes the TPU of powder, particle form with expended microsphere, prepared by melt-processed
TPU foamed material.Expended microsphere used is adhesive or the modeling of cured or thermoplasticity for being enclosed with low boiling point solvent (such as pentane)
Expect that pellet, the low boiling point solvent in expended microsphere are thermally decomposed into gas core in TPU process, the growth of gas core forms abscess
Structure.For the size of expended microsphere at generally 20-40 μm, it is not easy evenly dispersed, Gao Han when TPU melting mixing is processed
The addition of amount expended microsphere is easy to cause the formation of uneven macroporous structure.It is 0.3-1.0g/cm for density3TPU hair
Foam material, it can be observed that there is visible recess in sample surfaces, meanwhile, the wear-resisting property of this foamed material is poor.Pass through handle
Pigment is mixed into expended microsphere foaming TPU system, should can prepare colored TPU foamed material, but prepared low-density TPU
Foamed material equally exists that abscess-size is excessive, recess occur in sample surfaces, the problem of wear-resisting property difference, secondly, prepared
Low-density TPU foamed material has that color is not bright-coloured enough.
Patent document WO2005/066250A, WO2007/082838A, WO2010/136398A and CN103642200A are retouched
The method that TPU foamed material is prepared by suspension process using organic solvent or inert gas as physical blowing agent is stated.It is made
The abscess of standby TPU foamed material is small and is evenly distributed, and density can be down to 0.1-0.5g/cm3, this solves expended microsphere
Technology prepares the problem of TPU foamed material.But, this method is related to TPU particle being 100-150 DEG C in temperature
It is boiled in water 0.5-10 hours, TPU resin the fact that especially polyester-type TPU resin is susceptible to hydrolysis is a problem, long-time water
It boils and easily leads to TPU resin generation chemical degradation and xanthochromia problem, affect the performance and subsequent use of TPU foamed material.More
Importantly, the common pigment of TPU resin is mainly small molecule organic compound, small molecule organic compound is moulded in high-pressure foam agent
Change, be easy to that interfacial migration occurs in the environment of high temperature long-time boiling, there are pigment to be unevenly distributed inside and outside foamed material
The problems such as fading with foamed material surface color.
Patent document ZL201410196699.3 is described using colored TPU resin as raw material, supercritical CO2For foaming agent,
The migration that pigment is avoided using techniques such as high-pressure fluid low temperature dipping, short time foamables, so that it is uniform to be prepared for dyestuff
The TPU expanded bead being dispersed in polymer surfaces and matrix.The color of foamed material mainly by the concentration of its surface pigment Lai
It determines, and the pigment inside foamed material is not contributed significantly.Since pigment is expensive, hybrid pigment needs to be added compatible
Agent, auxiliary agent, secondary granulation, which increase costs；Secondly, the addition of pigment tends to influence the foam structure, swollen of foamed material
Swollen multiplying power, correspondingly, foaming process also results in the variation of material surface color, non-uniform foam structure or non-uniform
Expansion multiplying power will lead to material and form color difference, this influences the lot stability of foamed material.In addition to this, colored TPU foaming
Reexpansion will occur in vapor forming process for bead, TPU expanded bead different location, TPU expanded bead in a mold
Different location has different degrees of expansion because locating physical space is different, this easily leads to molding preparation and color difference occurs.
Summary of the invention
The object of the present invention is to provide a kind of painting methods of TPU expanded bead formed body, and which greatly reduce pigment
Dosage, and ensure the uniformity of color.The TPU expanded bead formed body is using overcritical/high-pressure fluid fretting map technology
White TPU expanded bead is prepared, then forms the white TPU expanded beads prepared to TPU expanded bead using vapor molding machine
Grain formed body.
A kind of painting methods of TPU expanded bead formed body, wherein include the following steps:
1. being surface-treated using inorganic agent to TPU expanded bead formed body；
2. the solution that pigment, resin and solvent are prepared is coated in TPU expanded beads by dyeing, the method painted or retouch paint
The outer surface of grain formed body material；
3. by heat treatment, under the pigment for being coated in TPU expanded bead molding external surface and resin are precipitated and are solidified
Come, to be prepared into TPU expanded bead formed body water-fastness, that mechanical resistant abrasion, color is evenly dispersed.
Further, step 2. in staining procedure, refer to for TPU expanded bead formed body to be put into pigment solution and stir,
It is sufficiently mixed TPU foamed sample material with pigment solution；Content is not more than its solubility in the solution to pigment in the solution.
Further, in step, 2. middle pigment is oil-soluble organic pigment, concentration 1-1000ppm, heatproof to 180-200
Degree；The solvent is methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, butanone, cyclohexanone, acetic acid second
One or more of ester；Resin is low molecular weight TPU resin, low molecular weight EVA resin, acrylic resin or SEBS grafting
Maleic anhydride resin, the molecular weight of the low molecular weight are 1000-20000.
Further, step 3. in, washing is first passed through before the heat treatment, the heat treatment refers to progress low temperature baking
Dry, temperature is 50-80 degree, time 1-10min.
Further, step 2. in paint step, by pigment solution pour into gas auxiliary spray gun reservoir in, using inertia
Pigment solution is pressed into spray gun spray nozzle by gas, through atomizer, is sprayed at the coloring face of TPU expanded bead formed body；Step
3. heat treatment in refers to low temperature drying, and temperature is 50-80 degree, time 1-10min.
Further, step 2. in, the pigment be organic pigment or inorganic pigment, the concentration of the pigment in the solution
For 500-10000ppm；The solvent is methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, butanone, ring
One or more of hexanone or ethyl acetate；The resin is low molecular weight TPU resin, low molecular weight EVA resin, third
Olefin(e) acid resin or SEBS grafted maleic anhydride resin, low molecular weight 1000-20000.
Further, step 2. in retouch paint step, pigment solution is infected with flexible writing brush, then in the region that colours of needs
Inside gradually uniformly brush in order；Step 3. in heat treatment refer to low temperature drying, temperature is 50-80 degree, time 1-
10min。
Further, step 2. in, the pigment be organic pigment or inorganic pigment, the concentration of the pigment in the solution
For 1000-100000ppm；The solvent be methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, butanone,
One or more of cyclohexanone, ethyl acetate；The resin is low molecular weight TPU resin, low molecular weight EVA resin, third
Olefin(e) acid resin or SEBS grafted maleic anhydride resin, low molecular weight 1000-20000.
Further, which is film, sheet material, Buffer Unit or sole.
TPU is a kind of thermoplastic elastic synthesized by polyisocyanates, polyester polyol or polyether polyol, chain extender etc.
Body material.Various types of polyisocyanates, but there are two types of yield maximum, i.e. methyl diphenylene diisocyanate (MDI)
With toluene di-isocyanate(TDI) (TDI).Polyalcohol it is many kinds of, mainly include polyester polyol, polyether polyol, polycarbonate
Polyalcohol, polyolefin polyhydric alcohol, polyacrylate polyol etc..Glycol such as butanediol, ethylene glycol, propylene glycol etc. is chain extender.
Currently, there are many TPU resin types that can be provided in the market, different hardness, different melt flow index, different chemical structures,
Different physical property etc., this provides convenience for preparation TPU foamed material.
It is divided into using the main method that supercritical fluid/high-pressure fluid fretting map technology prepares TPU expanded bead material as follows
Three kinds.
Method one:
TPU particle, nucleating agent, chain extender, auxiliary agent are added to the upper section screw rod of supercritical fluid extrusion foaming system, heating
Melting；Again supercritical fluid is injected into barrel from upper section screw rod, it is mixed uniformly molten to form polymer/supercritical fluid
Body；Polymer/supercritical fluid melt is sent into lower section screw rod by subsequent Melt Pump；It gradually decreases molten in lower section screw rod
Temperature；Polymer/supercritical fluid melt is granulated through the underwater pellet cutting system of lower section screw rod discharge outlet, is prepared into TPU hair
Steep bead material.
Method two:
TPU particle, nucleating agent, foam structure regulator are blended through twin-screw, underwater cutpellet prepares modified TPU particle；
Modified TPU particle is put into supercritical fluid/high-pressure fluid cryogenic high pressure dipping systems, dipping diffuses to foaming agent for a long time
In polymeric matrix and reach solubility equilibria；Modified TPU particle after dipping is through controllable heating, curing, drying and other steps system
For at TPU expanded bead material.
Method three:
TPU particle, nucleating agent, foam structure regulator are blended through twin-screw, underwater cutpellet prepares modified TPU particle；
Modified TPU particle is put into supercritical fluid/high-pressure fluid high temperature and pressure dipping systems, water, dispersing agent is added, introduces stirring
For avoiding modified TPU particle from bonding, dipping diffuses to foaming agent in polymeric matrix and reaches solubility equilibria；After dipping
Modified TPU particle through being prepared into TPU expanded bead material by controllable discharge, curing, drying and other steps.
Technology using vapor molding TPU expanded bead be it is known, the heating of the vapor of suitable temperature and pressure can
So that TPU expanded bead outer surface softens, strand therein has high mobility, and strand is between expanded bead
Phase counterdiffusion promotes the entanglement of molecule interchain, and subsequent cold water cooling makes this molecular entanglement structure be fixed up, thus shape
At the bonding between bead.
According to wikipedia, so-called pigment is exactly the substance for making substance catch color.Pigment why can display color,
The color of the visible light of certain wavelength can be reflected or absorbed in them.Pigment is broadly divided into organic pigment and inorganic pigment.Nothing
Machine pigment is usually mineral substance, and organic pigment is generally derived from plant, marine animal or organic synthesis.TPU resin is main
It is known for being dyed using small organic molecule pigment.The processing temperature of TPU resin is generally not less than 180 DEG C, this requires organic
The temperature tolerance of small molecule pigment generally will be more than 180 DEG C.Inorganic pigment generally has very high temperature tolerance, but often containing lead,
The heavy metals such as mercury, chromium, cadmium, there are environmental issues, and secondly inorganic pigment has that dyeing is not vivid enough.Carbon black is organic
The carbon black of modification is the common black pigment of TPU resin, and environmental issue is not present without containing heavy metals such as lead, mercury, chromium, cadmiums in it.
The titanium dioxide of titanium dioxide or organic decoration is the common white pigment of TPU resin, it is without containing the huge sum of money such as lead, mercury, chromium, cadmium
Belong to, environmental issue is also not present.
Ours the study found that the pigment molecule in the solution prepared by pigment/resin/solvent is easy to be infected in white
The outer surface of TPU expanded bead, resin used can be formed strongly with coated pigment and with TPU expanded bead formed body storeroom
Bonding, washing, mechanical friction do not easily lead to coated pigment and fade.It further finds, the method for dyeing is suitble to
Sample is integrally painted, and need to select the solution prepared by extremely dilute pigment/resin/solvent, content is not more than it to pigment in the solution
Solubility in the solution, selected pigment are mainly oil-soluble organic pigment, and since the solubility of pigment is low, product is contaminating
Paler colour after color；
Lacquer spraying technique is suitble to organic and inorganic two kinds of pigment, and painted areas can be plane, curved surface and have
The complex surface of groove decorative pattern, pattern can be whole surface, are also possible to the special patterns such as irregular dot, raindrop, adopt
When with lacquer spraying technique, the solution viscosity prepared by pigment/resin/solvent is larger；
The suitable colouring to small area, specific pattern of lacquer craftwork is retouched, needs directly to be coated with flexible pen contamination pigment solution,
Retouch paint color thickness can larger, color can be retouched with various iridescent lacquer craftwork need to select the pigment of compounding high concentration/
Resin/solvent solution prevents solution from trickling and polluting the region for not needing coloring.
The object of the present invention is to provide one kind, and colored TPU expanded bead formed body material is prepared by pigment solution coating
Method, color pigment be according to actual needs by dye, paint, retouch paint etc. techniques be applied directly to TPU expanded bead at
Colouring is realized in the outer surface of type body, and resin used can coat used organic and inorganic pigment, while can be with
TPU expanded bead matrix forms strong bonding, and dyeing, paint, retouching lacquer craftwork is according to shade, pigment type, painting
Cover region area, coating pattern etc. demands and it is selected, prepared colored TPU expanded bead formed body material is through washing, machine
Not fugitive color after tool friction.
The present invention relates to the color method of TPU expanded bead formed body, wherein dyeing course the following steps are included:
1) wash TPU expanded bead formed body material with inorganic agent and need the region that colours, remove its outer surface grease,
The dust etc. of the dispersing agent, absorption that add in foaming process, increases the adhesive force of pigment；
2) pigment, resin, stirring solvent are prepared by mixing into pigment solution；
3) TPU expanded bead formed body material is put into pigment solution, high-speed stirred, make TPU foamed sample material with
Pigment solution is sufficiently mixed；
4) the TPU expanded bead formed body after dyeing is isolated with sieve, washed, low temperature drying is prepared into pigment
Equally distributed TPU expanded bead formed body material.
Inorganic agent described in step 1) is to be made of promotor/resin/solvent, and the purpose of inorganic agent is by the micro- hair of TPU
Steep bead molding material surface carry out chemical polishing, degreasing, strengthening material surface property, to increase pigment to material
Expect the adhesive force on surface.
Pigment described in step 2) is organic pigment and inorganic pigment, preferably organic pigment, and wherein organic pigment is oil
Insoluble pigment, heatproof to 180-200 degree.
The concentration of pigment described in step 2) in the solution is 1-1000ppm.
Solvent described in step 2) is methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, fourth
One or more of ketone, cyclohexanone, ethyl acetate etc..
Resin described in step 2) is low molecular weight TPU resin, low molecular weight EVA resin, acrylic resin, SEBS connect
Branch maleic anhydride resin etc., preferably low molecular weight TPU resin, middle-molecular-weihydroxyethyl 1000-20000.
Washing described in step 4) is washing, and the low temperature drying temperature is 50-80 degree, drying time 1-
10min。
The present invention relates to the color method of TPU expanded bead formed body, wherein painting process the following steps are included:
1) need the region that colours with inorganic agent scrub TPU expanded bead formed body material, remove its outer surface grease,
The dust etc. of the dispersing agent, absorption that add in foaming process, increases the adhesive force of pigment；
2) pigment, resin, stirring solvent are prepared by mixing into pigment solution；
3) pigment solution is poured into the spray gun reservoir of gas auxiliary, is sprayed pigment solution indentation spray gun using inert gas
In head, through atomizer, it is sprayed at the coloring face of TPU expanded bead formed body material；
4) the TPU expanded bead formed body material at low temperature after spray painting is dried, is prepared into the equally distributed TPU foaming of pigment
Bead molding material.
Inorganic agent described in step 1) is to be made of promotor/resin/solvent, and the purpose of inorganic agent is by the micro- hair of TPU
Steep bead molding material surface carry out chemical polishing, degreasing, strengthening material surface property, to increase pigment to material
Expect the adhesive force on surface.
Pigment described in step 2) is organic pigment and inorganic pigment.
The concentration of pigment described in step 2) in the solution is 500-10000ppm.
Solvent described in step 2) is methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, fourth
One or more of ketone, cyclohexanone, ethyl acetate etc..
Resin described in step 2) is low molecular weight TPU resin, low molecular weight EVA resin, acrylic resin, SEBS connect
Branch maleic anhydride resin etc., preferably low molecular weight TPU resin, middle-molecular-weihydroxyethyl 1000-20000.
Low temperature drying temperature described in step 4) is 50-80 degree, drying time 1-10min.
The present invention relates to the color methods of TPU expanded bead formed body, wherein retouch paint process the following steps are included:
1) need the region that colours with inorganic agent scrub TPU expanded bead formed body material, remove its outer surface grease,
The dust etc. of the dispersing agent, absorption that add in foaming process, increases the adhesive force of pigment；
2) pigment, resin, stirring solvent are prepared by mixing into pigment solution；
3) it is infected with pigment solution with flexible writing brush, is then gradually uniformly brushed in order in the region for needing to colour；
4) the TPU expanded bead formed body material at low temperature after painting will be retouched to dry, is prepared into the equally distributed TPU foaming of pigment
Bead molding material.
Inorganic agent described in step 1) is to be made of promotor/resin/solvent, and the purpose of inorganic agent is by the micro- hair of TPU
Steep bead molding material surface carry out chemical polishing, degreasing, strengthening material surface property, to increase pigment to material
Expect the adhesive force on surface.
Pigment described in step 2) is organic pigment and inorganic pigment.
The concentration of pigment described in step 2) in the solution is 1000-100000ppm.
Solvent described in step 2) is methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, fourth
One or more of ketone, cyclohexanone, ethyl acetate etc..
Resin described in step 2) is low molecular weight TPU resin, low molecular weight EVA resin, acrylic resin, SEBS connect
Branch maleic anhydride resin etc., preferably low molecular weight TPU resin, middle-molecular-weihydroxyethyl 1000-20000.
Low temperature drying temperature described in step 4) is 50-80 degree, drying time 1-10min.
The present invention has the advantage that
The present invention passes through the method dye, paint, retouching paint, white TPU expanded bead formed body products appearance is adhered to more
Kind color, pigment is strong in conjunction with foaming body, and washing, external force friction are also not easy to remove.This method simple process, efficiently, be suitable for
A variety of pigment colors, strong operability, easy to industrialized production, dyestuff used is oil-soluble, not soluble in water, is easy to by heavy
The method in shallow lake separates, because avoiding pollution of the pigment to water source.
As example, colored TPU expanded bead formed body material of the invention can be with film, sheet material, Buffer Unit, sole
And the form of other shoes components uses.
The present invention is described in more detail in the examples below that.
Specific embodiment
In order to further explain the technical solution of the present invention, being explained in detail below by specific embodiment the present invention
It states.
Embodiment 1
By in the shoes mould of white TPU expanded beads injection vapor molding machine, mold is closed, vapor is passed through into mold
Mold is heated, cooling cold water, draining, blowing are carried out to mold, open mold, the molding of white TPU expanded bead is made
Body.
It is wiped over TPU foamed sample surface, the grease of removal surface attachment and the dust of absorption with inorganic agent, by treated
TPU foamed sample is put into the solution prepared by violet pigment/TPU resin/butanol, solution concentration 10ppm, and high-speed stirred makes
TPU foamed sample material is uniformly mixed with solvent, dyeing treated material is isolated with sieve, washed, low temperature drying,
The equally distributed TPU expanded moldings material of the purple prepared.
Embodiment 2
White TPU expanded bead formed body material is prepared using method shown in embodiment 1.It is needed with inorganic agent scrub
The TPU foamed material surface of color, removes the grease of sample surfaces and the dust of absorption, respectively by gas assisted spray gun by pale red
Solution (solution concentration 1000ppm) spray that color/SEBS resin/cyclohexanone and gray paint/acrylic resin/cyclohexanone are prepared
It is sprinkled upon TPU foamed material surface, through low temperature drying, is prepared into the colored TPU expanded bead molding of light red, grey random distribution
Body material.
Embodiment 3
White TPU expanded bead formed body material is prepared using method shown in embodiment 1.It is needed with inorganic agent scrub
The TPU foamed material surface of color, removes the grease of sample surfaces and the dust of absorption, and contamination is had yellow face with flexible writing brush
Material/EVA resin/ethyl acetate composition solution (concentration 10000ppm) equably brushes the sample surfaces coloured in needs,
Through low temperature drying, the equally distributed TPU expanded bead formed body material of yellow uitramarine is made.
Claims (4)
1. a kind of retouching for TPU expanded bead formed body paints color method, which comprises the steps of:
1. being surface-treated using inorganic agent to TPU expanded bead formed body；
2. the solution that pigment, resin and solvent are prepared by dyeing, the method painting or retouch paint be coated in TPU expanded bead at
The outer surface of type body material；Then the paint of retouching is needing in the region coloured by suitable to be infected with pigment solution with flexible writing brush
Sequence is gradually uniformly brushed；
3. the pigment for being coated in TPU expanded bead molding external surface and resin are precipitated and are solidified by heat treatment, from
And it is prepared into TPU expanded bead formed body water-fastness, that mechanical resistant abrasion, color is evenly dispersed.
2. a kind of retouching for TPU expanded bead formed body as described in claim 1 paints color method, which is characterized in that in step
In 3., step 3. in heat treatment refer to low temperature drying, temperature is 50-80 degree, time 1-10min.
3. a kind of retouching for TPU expanded bead formed body as claimed in claim 2 paints color method, which is characterized in that in step
2. in, the pigment is organic pigment or inorganic pigment, and the concentration of the pigment in the solution is 1000-100000ppm；It is described
Solvent is methanol, methyl ether, toluene, ethyl alcohol, ether, propyl alcohol, butanol, amylalcohol, hexanol, butanone, cyclohexanone, one in ethyl acetate
Kind is a variety of；The resin is that low molecular weight TPU resin, low molecular weight EVA resin, acrylic resin or SEBS are grafted horse
Come anhydride resin, low molecular weight 1000-20000.
4. a kind of retouching for TPU expanded bead formed body as claimed in claim 3 paints color method, which is characterized in that TPU hair
Bubble bead molding is film, sheet material, Buffer Unit or sole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547758.5A CN109081937A (en) | 2016-05-19 | 2016-05-19 | A kind of retouching for TPU expanded bead formed body paints color method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610333151.8A CN105820370B (en) | 2016-05-19 | 2016-05-19 | A kind of painting methods of TPU expanded bead formed body |
| CN201810547758.5A CN109081937A (en) | 2016-05-19 | 2016-05-19 | A kind of retouching for TPU expanded bead formed body paints color method |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610333151.8A Division CN105820370B (en) | 2016-05-19 | 2016-05-19 | A kind of painting methods of TPU expanded bead formed body |
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| Publication Number | Publication Date |
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| CN109081937A true CN109081937A (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810547757.0A Pending CN108715648A (en) | 2016-05-19 | 2016-05-19 | A kind of spray painting painting methods of TPU expanded beads formed body |
| CN201610333151.8A Active CN105820370B (en) | 2016-05-19 | 2016-05-19 | A kind of painting methods of TPU expanded bead formed body |
| CN201810547758.5A Pending CN109081937A (en) | 2016-05-19 | 2016-05-19 | A kind of retouching for TPU expanded bead formed body paints color method |
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| CN201810547757.0A Pending CN108715648A (en) | 2016-05-19 | 2016-05-19 | A kind of spray painting painting methods of TPU expanded beads formed body |
| CN201610333151.8A Active CN105820370B (en) | 2016-05-19 | 2016-05-19 | A kind of painting methods of TPU expanded bead formed body |
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| CN106245386B (en) * | 2016-09-21 | 2018-07-31 | 东莞市联洲知识产权运营管理有限公司 | A kind of colorful silk protein body and preparation method thereof through natural dye dying |
| US20200270806A1 (en) * | 2017-10-26 | 2020-08-27 | Basf Se | Method for dyeing elastomer particle foams |
| CN107698976A (en) * | 2017-10-31 | 2018-02-16 | 四川大学 | Prepare the bead foam process of high-performance multifunctional polymer foamed material and product |
| CN109971029A (en) * | 2019-03-28 | 2019-07-05 | 福建鑫瑞新材料科技有限公司 | A kind of coloured foamed material and preparation method thereof |
| CN112497560A (en) * | 2020-11-27 | 2021-03-16 | 江苏溯源中威新材料科技有限公司 | Colorful antistatic EPP bead and preparation method thereof |
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| JP2004211002A (en) * | 2003-01-07 | 2004-07-29 | Jsp Corp | Manufacturing methods of colored expandable particle of thermoplastic resin and expansion molded product |
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| CN101942248A (en) * | 2009-07-08 | 2011-01-12 | 王文庭 | Pigment color paste for PU (polyurethane) artificial leather |
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| JP5766906B2 (en) * | 2008-10-30 | 2015-08-19 | 大日精化工業株式会社 | Method for producing pigment / resin composition |
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| CN105820370A (en) | 2016-08-03 |
| CN108715648A (en) | 2018-10-30 |
| CN105820370B (en) | 2019-03-05 |
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