CN113119615A - Non-sand-hole printing method for semitransparent material - Google Patents

Non-sand-hole printing method for semitransparent material Download PDF

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Publication number
CN113119615A
CN113119615A CN201911415802.8A CN201911415802A CN113119615A CN 113119615 A CN113119615 A CN 113119615A CN 201911415802 A CN201911415802 A CN 201911415802A CN 113119615 A CN113119615 A CN 113119615A
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printing
parts
primer
translucent material
recited
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CN113119615B (en
Inventor
周姿
刘晓鹏
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Shanghai Haobai Zhizao Precision Electronics Co.,Ltd.
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Hopines Electronic Technology Shanghai Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00Inking and printing with a printer's forme
    • B41M1/12Stencil printing; Silk-screen printing
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/02Printing inks
    • C09D11/04Printing inks based on proteins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/02Printing inks
    • C09D11/06Printing inks based on fatty oils
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C09D4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002Priming paints

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Printing Methods (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention relates to a non-sand-hole printing method of a semitransparent material, which comprises the following steps: (1) printing a layer of primer on the frosted surface of the semitransparent material by adopting a screen printing mode; (2) and printing the set color on the surface of the primer. Compared with the prior art, the invention has the advantages of low cost, no sand holes and the like.

Description

Non-sand-hole printing method for semitransparent material
Technical Field
The invention relates to a printing process of a semitransparent material, in particular to a non-sand-hole printing method of the semitransparent material.
Background
The semitransparent material is a material with light transmittance of less than 80%, and is generally obtained by polishing one surface of a pure transparent material into a frosted surface, so that two surfaces of the semitransparent material are mirror surfaces, and the other surface of the semitransparent material is the frosted surface.
The semitransparent material has wide application in the scientific fields of industrial production, biomedicine, information communication and the like. With the technical development and demand increase of consumer electronics products such as smart phones, LEDs, tablet computers, touch screens, smart watches and the like, because translucent materials have excellent texture and good touch feeling, and the demand of industrial markets for translucent materials is increasing day by day, translucent materials are often adopted as base materials, coatings with different colors are printed on frosted surfaces of the base materials, and materials with different colors are obtained, so that various products with touch texture, such as mobile phone shells, toys and the like, are manufactured.
However, due to the fact that the frosted surface of the semitransparent material is uneven, the printing pigment is easy to be colorless at the position of the local convex point due to the fluidity, sand holes appear on the surface, and in order to reduce or avoid the sand holes, the convex points are covered by multiple times of printing at the present stage, so that cost floating is directly caused.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a low-cost method for non-glare printing of translucent materials.
The purpose of the invention can be realized by the following technical scheme: a method of non-veining printing of translucent materials, comprising the steps of:
(1) printing a layer of primer on the frosted surface of the semitransparent material by adopting a screen printing mode;
(2) and printing the set color on the surface of the primer.
The primer comprises the following components in parts by weight:
50-70 parts of polyurethane emulsion resin;
20-30 parts of thermoplastic acrylic resin;
10-20 parts of vinyl acetate;
20-30 parts of modified silica sol;
1-3 parts of ammonium hydroxide;
1-3 parts of a drier;
5-10 parts of a curing agent;
3-10 parts of a solvent.
The viscosity of the polyurethane emulsion resin is 50-150 mPa.s.
The modified silica sol is prepared by mixing silica particles and silica sol in a mass ratio of 1: 6-10, wherein the particle size of the silica particles is 400-600 meshes.
The curing agent is hydrophilic isocyanate curing agent;
the drier is dibutyltin dilaurate.
The solvent is deionized water or propylene glycol methyl ether acetate.
The silk-screen printing conditions of the step (1) are as follows: the mesh number of the printing screen is 600-800 meshes, the printing thickness is 10-20 microns, the printing speed is 1.0-2.0 m/s, the distance between the printing screen and the semitransparent material is 1-2 mm, the scraping angle is 45-60 degrees, and the scraping press-in amount is 3-4 mm.
And (3) after the primer printing in the step (2) is finished, baking for 20-30 seconds at 40-60 ℃, and then printing a set color.
And (3) setting the color of the step (2) to be commercial colored paint.
Translucent materials include commercially available translucent plastics, glass, crystal, and the like.
Compared with the prior art, the invention has the following advantages:
1. the new printing process avoids the sand hole phenomenon completely, solves the problem of sand hole and reduces the cost.
2. The invention adopts special primer, pits with different depths on the surface of the frosted surface can be filled and covered, and no sand holes can appear when the color ink is printed.
3 the special primer adopted by the invention adopts polyurethane emulsion resin, thermoplastic acrylic resin and vinyl acetate as core resin components, wherein the main chain of the polyurethane emulsion resin contains urethane bonds, the appearance is white and semitransparent, the volatile components of the polyurethane emulsion resin are 30-35 wt%, the pH value is 8-10, and the polyurethane emulsion resin is compounded with the thermoplastic acrylic resin and the vinyl acetate, so that the generation of static electricity of the primer can be prevented, and the adhesive force of the primer is increased.
The thermoplastic acrylic resin can be softened by heating and solidified by cooling repeatedly, is generally a linear macromolecular compound, can be a homopolymer or a copolymer, has good physical and mechanical properties, excellent weather resistance, chemical resistance and water resistance and high gloss and color retention.
The vinyl acetate is colorless liquid and has sweet ether taste; slightly soluble in water, and soluble in alcohol, acetone, benzene, and chloroform. Can be copolymerized, grafted and blocked with polyurethane emulsion resin and thermoplastic acrylic resin to prepare high-molecular synthetic materials with different properties.
Meanwhile, the surface of the hydrophilic isocyanate curing agent contains a large amount of hydroxyl groups, and the hydrophilic isocyanate curing agent can be subjected to a crosslinking curing reaction with the matrix resin. The modified silica sol contains silica particles, so that the heat resistance, the scratch resistance and the adhesive strength can be improved, on one hand, the modified silica sol can be well filled and adhered with a semitransparent material, and on the other hand, the modified silica sol is firmly combined with a colored paint, and the modified silica sol cannot fade or corrode due to long-term touch or contact.
4. The invention adopts the screen printing mode to better control the problems of bad sand holes and bad chromatic aberration.
Drawings
FIG. 1 shows a colored paint-bearing material obtained by the method of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
A method of non-trachomatis printing of a translucent material, the method comprising the steps of:
(1) preparation of the primer
60 parts of polyurethane emulsion resin with the viscosity of 100 mPas; 25 parts of thermoplastic acrylic resin; 15 parts of vinyl acetate; 25 parts of modified silica sol; 2 parts of ammonium hydroxide; 2 parts of dibutyltin dilaurate; 8 parts of hydrophilic isocyanate curing agent; 6 parts of deionized water, and stirring and mixing for 20min at normal temperature to obtain the primer.
The modified silica sol is prepared by mixing silica particles and silica sol in a mass ratio of 1:8, wherein the particle size of the silica particles is 500 meshes.
(2) Printing a layer of primer on the frosted surface of the translucent glass in a screen printing mode; the conditions of screen printing were: the mesh number of the printing screen plate is 600 meshes, the printing thickness is 15 micrometers, the printing speed is 1.5 m/s, the distance between the printing screen plate and the semitransparent material is 1.5 millimeters, the glue scraping angle is 45 degrees, and the glue scraping press-in amount is 3 mm.
(3) After the primer printing is finished, baking is carried out for 30 seconds at 40 ℃, and then the set color is printed on the surface of the primer. The color was set as a commercial red paint.
The structure of the obtained product is shown in fig. 1, and comprises three layers from bottom to top: semi-permeable membrane glass 1, priming paint 2 and colored paint 3.
Example 2
A method of non-trachomatis printing of a translucent material, the method comprising the steps of:
(1) preparation of the primer
70 parts of polyurethane emulsion resin with the viscosity of 50 mPas; 30 parts of thermoplastic acrylic resin; 10 parts of vinyl acetate; 20 parts of modified silica sol; 1 part of ammonium hydroxide; 1 part of dibutyltin dilaurate; 5 parts of hydrophilic isocyanate curing agent; 3 parts of deionized water, and stirring and mixing for 10min at normal temperature to obtain the primer.
The modified silica sol is prepared by mixing silica particles and silica sol in a mass ratio of 1:6, wherein the particle size of the silica particles is 400 meshes.
(2) Printing a layer of primer on the frosted surface of the semitransparent crystal by adopting a screen printing mode; the conditions of screen printing were: the mesh number of the printing screen plate is 600 meshes, the printing thickness is 10 micrometers, the printing speed is 1.0 m/s, the distance between the printing screen plate and the semitransparent material is 1 mm, the glue scraping angle is 45 degrees, and the glue scraping press-in amount is 3 mm.
(3) After the primer printing is finished, baking is carried out for 30 seconds at 40 ℃, and then the set color is printed on the surface of the primer. The color was set as a commercial blue paint.
Example 3
A method of non-trachomatis printing of a translucent material, the method comprising the steps of:
(1) preparation of the primer
50 parts of polyurethane emulsion resin with the viscosity of 150 mPas; 20 parts of thermoplastic acrylic resin; 20 parts of vinyl acetate; 30 parts of modified silica sol; 3 parts of ammonium hydroxide; 3 parts of dibutyltin dilaurate; 10 parts of hydrophilic isocyanate curing agent; 10 parts of propylene glycol methyl ether acetate, and stirring and mixing at normal temperature for 30min to obtain the primer.
The modified silica sol is prepared by mixing silica particles and silica sol in a mass ratio of 1:10, wherein the particle size of the silica particles is 600 meshes.
(2) Printing a layer of primer on the frosted surface of the semitransparent plastic by adopting a screen printing mode; the conditions of screen printing were: the mesh number of the printing screen plate is 800 meshes, the printing thickness is 20 micrometers, the printing speed is 2.0 m/s, the distance between the printing screen plate and the semitransparent material is 2 millimeters, the glue scraping angle is 60 degrees, and the glue scraping press-in amount is 4 mm.
(3) After the primer is printed, the mixture is baked at 60 ℃ for 20 seconds, and then the set color is printed on the surface of the primer. The color was set to commercial yellow paint.
The properties of the obtained product are shown in the table below
Figure BDA0002351156010000051

Claims (8)

1. A method of non-veining printing of translucent materials, comprising the steps of:
(1) printing a layer of primer on the frosted surface of the semitransparent material by adopting a screen printing mode;
(2) and printing the set color on the surface of the primer.
2. The method for non-trachoma printing of a translucent material as recited in claim 1, wherein the primer comprises the following components in parts by weight:
50-70 parts of polyurethane emulsion resin;
20-30 parts of thermoplastic acrylic resin;
10-20 parts of vinyl acetate;
20-30 parts of modified silica sol;
1-3 parts of ammonium hydroxide;
1-3 parts of a drier;
5-10 parts of a curing agent;
3-10 parts of a solvent.
3. The method for non-trachoma printing of a translucent material as recited in claim 2, wherein the viscosity of the polyurethane emulsion resin is 50 to 150 mPa-s.
4. The method for printing a translucent material without a pinhole according to claim 2, wherein the modified silica sol is prepared by mixing silica particles and silica sol in a mass ratio of 1: 6-10, wherein the silica particles have a particle size of 400-600 mesh.
5. The method for non-trachoma printing of a translucent material as recited in claim 2, wherein the curing agent is a hydrophilic isocyanate curing agent;
the drier is dibutyltin dilaurate;
the solvent is deionized water or propylene glycol methyl ether acetate.
6. A method of non-trachoma printing a translucent material as recited in claim 1, wherein the condition of the screen printing in the step (1) is: the mesh number of the printing screen is 600-800 meshes, the printing thickness is 10-20 microns, the printing speed is 1.0-2.0 m/s, the distance between the printing screen and the semitransparent material is 1-2 mm, the scraping angle is 45-60 degrees, and the scraping press-in amount is 3-4 mm.
7. The method for printing a translucent material according to claim 1, wherein the primer in step (2) is baked at 40-60 ℃ for 20-30 seconds after the printing is completed, and then the setting color is printed.
8. A method of non-trachomatis printing of a translucent material as recited in claim 1, wherein the set color of step (2) is a commercial paint color.
CN201911415802.8A 2019-12-31 2019-12-31 Non-sand-hole printing method for semitransparent material Active CN113119615B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001277450A (en) * 2000-01-25 2001-10-09 Hiraoka & Co Ltd Surface treatment sheet
CN101851446A (en) * 2009-03-31 2010-10-06 日本精工油墨股份有限公司 Ink with mirror effect and decorative print
CN102277057A (en) * 2011-07-26 2011-12-14 东来涂料技术(上海)有限公司 Conductive priming paint for plastic substrate electrostatic painting and preparation method thereof
AU2012247077A1 (en) * 2006-12-21 2012-11-29 Agfa Nv Inkjet printing methods and inkjet ink sets
CN107571654A (en) * 2017-08-31 2018-01-12 广东星弛光电科技有限公司 A kind of printing process of cambered surface color crystal glass
CN107841236A (en) * 2017-10-30 2018-03-27 芜湖辉灿电子科技有限公司 A kind of radioresistance mobile phone surface lacquer
CN108276898A (en) * 2017-12-29 2018-07-13 湖南松井新材料有限公司 Plate coating system, plastic parts and its preparation process with metal effect coating
CN109354513A (en) * 2018-10-31 2019-02-19 北京小米移动软件有限公司 Ceramic material and its preparation method and application
CN110482997A (en) * 2019-08-26 2019-11-22 安徽科昂纳米科技有限公司 A kind of preparation method of thermal insulation separation hot-bulb and thermal insulation separation hot-bulb obtained

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001277450A (en) * 2000-01-25 2001-10-09 Hiraoka & Co Ltd Surface treatment sheet
AU2012247077A1 (en) * 2006-12-21 2012-11-29 Agfa Nv Inkjet printing methods and inkjet ink sets
CN101851446A (en) * 2009-03-31 2010-10-06 日本精工油墨股份有限公司 Ink with mirror effect and decorative print
CN102277057A (en) * 2011-07-26 2011-12-14 东来涂料技术(上海)有限公司 Conductive priming paint for plastic substrate electrostatic painting and preparation method thereof
CN107571654A (en) * 2017-08-31 2018-01-12 广东星弛光电科技有限公司 A kind of printing process of cambered surface color crystal glass
CN107841236A (en) * 2017-10-30 2018-03-27 芜湖辉灿电子科技有限公司 A kind of radioresistance mobile phone surface lacquer
CN108276898A (en) * 2017-12-29 2018-07-13 湖南松井新材料有限公司 Plate coating system, plastic parts and its preparation process with metal effect coating
CN109354513A (en) * 2018-10-31 2019-02-19 北京小米移动软件有限公司 Ceramic material and its preparation method and application
CN110482997A (en) * 2019-08-26 2019-11-22 安徽科昂纳米科技有限公司 A kind of preparation method of thermal insulation separation hot-bulb and thermal insulation separation hot-bulb obtained

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Address after: 201108 the 1 story 1F101 room 2, 2059 metropolitan Road, Minhang District, Shanghai.

Patentee after: Shanghai Haobai Zhizao Precision Electronics Co.,Ltd.

Address before: 201108 the 1 story 1F101 room 2, 2059 metropolitan Road, Minhang District, Shanghai.

Patentee before: HOPINES ELECTRONIC TECHNOLOGY (SHANGHAI) Co.,Ltd.

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