CN115195317B - Double-layer UV transfer printing process - Google Patents
Double-layer UV transfer printing process Download PDFInfo
- Publication number
- CN115195317B CN115195317B CN202110389193.4A CN202110389193A CN115195317B CN 115195317 B CN115195317 B CN 115195317B CN 202110389193 A CN202110389193 A CN 202110389193A CN 115195317 B CN115195317 B CN 115195317B
- Authority
- CN
- China
- Prior art keywords
- curing
- glue
- transfer printing
- filling
- holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010023 transfer printing Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003292 glue Substances 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000012790 adhesive layer Substances 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 238000005286 illumination Methods 0.000 claims description 9
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052753 mercury Inorganic materials 0.000 claims description 7
- 239000002355 dual-layer Substances 0.000 claims description 5
- 238000004049 embossing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 238000001723 curing Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/06—Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Vascular Medicine (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Toxicology (AREA)
- Printing Methods (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
The invention provides a double-layer UV transfer printing process, which is used for cutting a substrate into a required size; spraying UV glue on the substrate, performing texture template transfer printing, and performing primary curing; the same films with different shapes are selected according to requirements, gloss oil is filled in the shooting holes and the flash lamp holes to serve as an adhesive layer, and the subsequent secondary UV transfer printing is carried out; filling textures in the holes, filling a smooth texture template, and filling a flash lamp hole or a camera shooting hole into a plane; transfer using an embossed template and a second cure is performed. The hardness, viscosity and biting force of the glue reach a relatively balanced degree by adjusting the recoating property of the glue, so that stable biting force can be generated on other film layers, texture lines can be filled by twice bonding after the glue is solidified, and meanwhile, the adhesive force of secondary transfer printing is improved.
Description
Technical Field
The invention belongs to the technical field of UV transfer printing, and particularly relates to a double-layer UV transfer printing process.
Background
The UV glue transfer printing process is a photo-curing type single-component forming and gluing process, and is mainly formed on the surfaces of PC, PET, PMMA, TPU and other polyester films after rolling through a die template. The process is mainly used for manufacturing products such as a rear cover of a middle-high-grade mobile phone, a camera and the like. The shape of the glue texture is determined by the original texture of the template. The existing products, such as camera ornaments, camera lenses and the like, are required to be provided with large-surface texture effects in order to ensure attractive appearance, but texture effects cannot exist at the camera position or the flash lamp hole position, so that the position is required to be kept away, texture clearance can be carried out according to the shape of a film during template texture manufacturing, but the clearance scheme can increase the difficulty of UV transfer printing sleeve position, the sleeve position precision of a UV transfer printing machine on the current market is more than 0.5mm, the sleeve position precision requirement of the existing products cannot be met, meanwhile, the texture clearance of the template is low in fit, obvious section difference exists, and the conditions of degumming and poor adhesive force performance are caused during UV transfer printing.
Disclosure of Invention
The invention provides a double-layer UV transfer printing process, which aims to solve the problems of small area and irregular area clearance of the existing texture template, simplify the difficulty of nested UV transfer printing and improve the yield and the production efficiency.
The technical scheme adopted for solving the technical problems is as follows: a bilayer UV transfer process comprising the steps of:
(1) Cutting the substrate to a desired size;
(2) Spraying UV glue on the substrate, performing texture template transfer printing, and performing primary curing;
(3) The same films with different shapes are selected according to requirements, gloss oil is filled in the shooting holes and the flash lamp holes to serve as an adhesive layer, and the subsequent secondary UV transfer printing is carried out;
(4) Filling textures in the holes, filling a smooth texture template, and filling a flash lamp hole or a camera shooting hole into a plane;
(5) Transfer using an embossed template and a second cure is performed.
Preferably, the step 2 adopts UV glue with low hardness, high viscosity and high recoating performance.
Preferably, the first curing in the step 2 is surface curing only using an LED lamp.
Preferably, the energy of the LED lamp in the first curing in the step 2 is 400-600mj/cm < 2 >, and the illumination intensity is more than 800lux.
Preferably, in the step 2, the product is coated after the first curing is completed.
Preferably, the back of the film is covered with a ground color after the film is coated, so that light transmission is prevented.
Preferably, in the step 5, the dual curing molding is performed by an LED lamp and a mercury lamp.
Preferably, the LED energy in the second curing in the step 5 is 400-600mj/cm < 2 >, and the illumination intensity is more than 800lux; the energy of the mercury lamp is 900-1100mj/cm < 2 >, and the illumination intensity is more than 100lux.
The beneficial effects of the invention are as follows: the recoating property of the glue is adjusted, so that the hardness, viscosity and biting force of the glue reach a relatively balanced degree, stable biting force can be generated on other film layers, texture lines can be filled by bonding twice after the glue is solidified, the technical difficulty that the UV transfer printing template cannot keep away the texture area, the clearance fit is low, the level difference is high is solved, and the adhesive force of secondary transfer printing is improved.
Detailed Description
The present invention will be described in further detail with reference to examples, but the scope of the present invention is not limited thereto.
The invention relates to a double-layer UV transfer printing process, which comprises the following steps of:
(1) Cutting the substrate to a desired size;
(2) Spraying UV glue on the substrate, performing texture template transfer printing, and performing primary curing;
(3) The same films with different shapes are selected according to requirements, gloss oil is filled in the shooting holes and the flash lamp holes to serve as an adhesive layer, and the subsequent secondary UV transfer printing is carried out;
(4) Filling textures in the holes, filling a smooth texture template, and filling a flash lamp hole or a camera shooting hole into a plane;
(5) Transfer using an embossed template and a second cure is performed.
In the embodiment, templates with different textures such as CD lines, multicolor lines, silk-stretching lines and the like can be adopted for the first UV transfer printing, and special double-coated glue is adopted for the UV glue, so that the glue has the characteristics of low hardness, high viscosity and high recoating performance; the surface curing is carried out only by using an LED lamp during primary transfer printing; after transfer printing, a film printing process is added, the required shape can be shown according to different films, the camera hole and the flash lamp hole are filled with gloss oil to serve as an adhesive layer, the subsequent secondary UV transfer printing is carried out, the adhesive force effect is stabilized, the textures in the hole are filled, the smooth texture template is filled, and the flash lamp hole or the camera hole is filled into a plane; the secondary embossing uses a smooth embossing template, so that glue is filled into textures, and the double curing and forming of the LED and the mercury lamp are performed.
Furthermore, the UV glue adopted in the step 2 has low hardness, high viscosity and high recoating performance.
Further, in the step 2, the first curing is performed by using only an LED lamp for surface curing.
In the embodiment, the energy of the LED lamp in the first curing in the step 2 is 400-600mj/cm < 2 >, and the illumination intensity is more than 800lux.
In the embodiment, the thickness of the embossed glue is 8-12 microns, the pressure used for embossing is 0.24mpa, the roller speed is 30%, the glue outlet pressure is 70+/-20mp, and the glue outlet speed is 80% -100%.
Further, in the step 2, after the first curing is completed, a coating film is formed on the product.
In the embodiment, the coating increases the brightness of the surface of the product, and the texture of the matched previous process forms a very dazzling texture effect.
Further, after coating, the back is covered with a base color to prevent light transmission.
In this embodiment, the back cover base color prevents light transmission, wherein the image pick-up hole and the flash lamp hole are hollowed out, and the base color is not covered.
Further, in the step 5, the dual curing molding is performed by an LED lamp and a mercury lamp.
In the embodiment, the LED energy in the second curing in the step 5 is 400-600mj/cm < 2 >, and the illumination intensity is more than 800lux; the energy of the mercury lamp is 900-1100mj/cm < 2 >, and the illumination intensity is more than 100lux.
The above embodiment is only a preferable solution of the dual-layer UV transfer process of the present invention, and is not limited in any way, and other variations and modifications may be made without exceeding the technical solutions described in the claims.
Claims (6)
1. A double-layer UV transfer printing process is characterized in that: the method comprises the following steps:
(1) Cutting the substrate to a desired size;
(2) Spraying UV glue on the substrate, transferring the texture template, and performing primary curing, wherein the primary curing is surface curing;
(3) Films with different shapes are selected according to requirements, gloss oil is filled in the shooting holes and the flash lamp holes to serve as an adhesive layer, and the film is subjected to secondary UV transfer printing;
(4) Filling textures in the holes, filling a smooth texture template, and filling a flash lamp hole or a camera shooting hole into a plane;
(5) Transferring by using an embossing template, performing secondary curing by using an LED lamp and a mercury lamp, and performing dual curing molding; LED energy of 400-600mj/cm 2 The illumination intensity is more than 800lux;energy of mercury lamp is 900-1100mj/cm 2 The illumination intensity is more than 100lux;
the thickness of the embossed glue is 8-12 microns, and the pressure used for embossing is 0.24MPa.
2. The dual layer UV transfer process of claim 1, wherein: the UV glue adopted in the step (2) has low hardness, high viscosity and high recoating performance.
3. The dual layer UV transfer process of claim 1, wherein: and (3) performing surface curing by using the LED lamp only for the first curing in the step (2).
4. A bilayer UV transfer process according to claim 3 wherein: the energy of the LED lamp in the first curing in the step (2) is 400-600mj/cm 2 The illumination intensity is greater than 800lux.
5. The dual layer UV transfer process of claim 1, wherein: and (3) coating a film on the product after the first curing in the step (2) is completed.
6. The dual layer UV transfer process of claim 5, wherein: and after the film is coated, covering the back with a base color to prevent light transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389193.4A CN115195317B (en) | 2021-04-12 | 2021-04-12 | Double-layer UV transfer printing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110389193.4A CN115195317B (en) | 2021-04-12 | 2021-04-12 | Double-layer UV transfer printing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115195317A CN115195317A (en) | 2022-10-18 |
| CN115195317B true CN115195317B (en) | 2024-02-13 |
Family
ID=83570840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110389193.4A Active CN115195317B (en) | 2021-04-12 | 2021-04-12 | Double-layer UV transfer printing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115195317B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08156428A (en) * | 1994-12-09 | 1996-06-18 | Fujicopian Co Ltd | Thermal transfer recording medium for forming color image and formation of color image |
| WO2011003249A1 (en) * | 2009-07-06 | 2011-01-13 | 珠海东诚光固化材料有限公司 | Ultraviolet curing transfer film, manufacturing method therefor and application thereof |
| CN102744898A (en) * | 2012-07-26 | 2012-10-24 | 东莞钜升塑胶电子制品有限公司 | UV (Ultraviolet) transfer printing process |
| CN104608514A (en) * | 2013-11-01 | 2015-05-13 | 联想(北京)有限公司 | Printing method |
| CN105259737A (en) * | 2015-09-01 | 2016-01-20 | 苏州市贝特利高分子材料股份有限公司 | Transfer processing method for glass base material of cover board |
| CN105750155A (en) * | 2016-03-17 | 2016-07-13 | 深圳市尊宝精密光学有限公司 | UV transfer printing technology |
| CN107672331A (en) * | 2017-08-31 | 2018-02-09 | 广东星弛光电科技有限公司 | A kind of flat glass form protecting screen UV textures transfer preparation technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2022381B1 (en) * | 2019-01-11 | 2020-08-13 | Trespa Int Bv | A method of fabricating a décor |
-
2021
- 2021-04-12 CN CN202110389193.4A patent/CN115195317B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08156428A (en) * | 1994-12-09 | 1996-06-18 | Fujicopian Co Ltd | Thermal transfer recording medium for forming color image and formation of color image |
| WO2011003249A1 (en) * | 2009-07-06 | 2011-01-13 | 珠海东诚光固化材料有限公司 | Ultraviolet curing transfer film, manufacturing method therefor and application thereof |
| CN102744898A (en) * | 2012-07-26 | 2012-10-24 | 东莞钜升塑胶电子制品有限公司 | UV (Ultraviolet) transfer printing process |
| CN104608514A (en) * | 2013-11-01 | 2015-05-13 | 联想(北京)有限公司 | Printing method |
| CN105259737A (en) * | 2015-09-01 | 2016-01-20 | 苏州市贝特利高分子材料股份有限公司 | Transfer processing method for glass base material of cover board |
| CN105750155A (en) * | 2016-03-17 | 2016-07-13 | 深圳市尊宝精密光学有限公司 | UV transfer printing technology |
| CN107672331A (en) * | 2017-08-31 | 2018-02-09 | 广东星弛光电科技有限公司 | A kind of flat glass form protecting screen UV textures transfer preparation technology |
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| Publication number | Publication date |
|---|---|
| CN115195317A (en) | 2022-10-18 |
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