CN110614210A - Production process of UV (ultraviolet) glue-dripping mould pressing seamless holographic film - Google Patents
Production process of UV (ultraviolet) glue-dripping mould pressing seamless holographic film Download PDFInfo
- Publication number
- CN110614210A CN110614210A CN201910865637.XA CN201910865637A CN110614210A CN 110614210 A CN110614210 A CN 110614210A CN 201910865637 A CN201910865637 A CN 201910865637A CN 110614210 A CN110614210 A CN 110614210A
- Authority
- CN
- China
- Prior art keywords
- glue
- roller
- holographic film
- plate
- dripping
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to the technical field of seamless holographic films, in particular to a production process of a UV (ultraviolet) glue-dripping mould-pressing seamless holographic film. The production process of the UV glue-dripping mould pressing seamless holographic film comprises the following steps of firstly, connecting a line and coating UV glue dripping; step two, single-plate mould pressing; and step three, aluminum plating. Because the adopted UV glue dripping connection line coating mode is a double-roller glue homogenizing structure, the UV glue dripping coating is more uniform, the surface flatness is better, and the phenomenon of nonuniform thickness of the UV glue is effectively avoided. In addition, as the sleeve laser holographic nickel plate is engraved by laser, the problems of plate joint and plate joint are completely avoided, and the structure of the inflatable single plate roller is matched, so that the overlapping mould pressing is completely avoided, the plate joint and interference grains are avoided in the real sense, the single plate roller is produced in batch, the method is suitable for the production of various materials, and the application field and the market of the plain surface seamless laser holographic film are further expanded.
Description
Technical Field
The invention relates to the technical field of seamless holographic films, in particular to a production process of a UV (ultraviolet) glue-dripping mould-pressing seamless holographic film.
Background
In the prior art, the seamless laser holographic PET film and PVC film are produced in an overlapped molding mode of adhering a holographic plain plate by using two rollers, and the overlapped molding mode of the two rollers has the following defects: an inclination angle is formed between the two plates, the laser effect of the cooling plate gap transition area has obvious shadow, so that the chromatic aberration is obvious, the film of the cooling plate gap transition area is deformed and is not well flattened, and dead wrinkles are easy to generate. In the double-plate overlapping mould pressing mode, if the holographic nickel plates used by the two plate rollers are completely the same, interference grains are generated in an overlapping area, in order to avoid the generation of the interference grains, the holographic nickel plate attached to the first plate roller and the holographic nickel plate attached to the second plate roller are inclined by at least 5-10 degrees to avoid the generation of the interference grains, namely the interference grains in the overlapping area can be overcome by inclining the first plate by 5 degrees relative to the second plate when the first plate is cut. The double-plate overlapped die pressing mode is characterized in that the plate attaching seams of the first plate roller and the second plate roller are cooled by adopting cooling oil pipelines in the two plate roller structures, so that the laser effect in the plate attaching seam transition area has obvious black shadow, the thin film in the plate attaching seam transition area is deformed and flattened badly, and particularly, the PVC material with very low temperature resistance is easy to deform and wrinkle, so that the mass production cannot be realized.
Disclosure of Invention
The invention aims to provide a production process of a UV (ultraviolet) glue-dripping mould-pressing seamless holographic film aiming at the defects of the prior art, the production process of the UV glue-dripping mould-pressing seamless holographic film enables UV glue-dripping to be coated more uniformly and has better surface flatness, and the phenomenon of uneven thickness of UV glue-dripping is effectively avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the production process of the UV glue-dripping mould-pressing seamless holographic film comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure.
In the technical scheme, in the first step, the viscosity of the UV glue is 25-35 s in a T4 cup, and the coating thickness is 3-6 μm.
In the above technical scheme, in the second step, the single plate roller is an inflatable single plate roller, and the inflation pressure is 4-5 kg.
In the above technical scheme, in the second step, the single-plate mold is cured by using UV cold light, and the power of the UV cold light is 3 KW-7 KW.
In the above technical scheme, the double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single plate roller.
In the technical scheme, the PET or PVC original film enters from one side of the second glue homogenizing roller close to the single plate roller.
In the above technical solution, in the third step, the vacuum degree of the vacuum aluminum plating is 0.9X10-2And (6) handkerchief.
In the above technical scheme, in the third step, the thickness of the aluminum is
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film, which comprises the following steps of firstly, connecting lines and coating UV glue dripping; step two, single-plate mould pressing; and step three, aluminum plating. Because the adopted UV glue dripping connection line coating mode is a double-roller glue homogenizing structure, the UV glue dripping coating is more uniform, the surface flatness is better, and the phenomenon of nonuniform thickness of the UV glue is effectively avoided. In addition, as the sleeve laser holographic nickel plate is engraved by laser, the problems of plate joint and plate joint are completely avoided, and the structure of the inflatable single plate roller is matched, so that the overlapping mould pressing is completely avoided, the plate joint and interference grains are avoided in the real sense, the single plate roller is produced in batch, the method is suitable for the production of various materials, and the application field and the market of the plain surface seamless laser holographic film are further expanded.
(2) The production process of the UV drop glue die-pressing seamless holographic film has the characteristics of simple process, low production cost and suitability for large-scale production.
Drawings
FIG. 1 is a prior art process flow diagram.
FIG. 2 is a process flow diagram of a production process of the UV drop molding seamless holographic film of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1.
A production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode; in this example, the viscosity of the UV glue is T4 cup for 30s, and the coating thickness is 5 μm;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film; wherein, the single plate roller is an inflatable single plate roller, and the inflation pressure is 4.5 kilograms in the embodiment; wherein, the single-plate mould pressing adopts UV cold light for curing, in the embodiment, the power of the UV cold light is 5 KW;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film. Wherein the vacuum degree of vacuum aluminizing is 0.9X10-2And (6) handkerchief.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure. The double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single-roller. And the PET or PVC original film enters from one side of the second glue homogenizing roller close to the single plate roller. In this example, the thickness of aluminum is
Example 2.
A production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode; in this example, the viscosity of the UV glue was T4 cup 25s, and the coating thickness was 3 μm;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film; wherein, the single plate roller is an inflatable single plate roller, and the inflation pressure is 4 kilograms in the embodiment; wherein, the single-plate mould pressing adopts UV cold light for curing, in the embodiment, the power of the UV cold light is 3 KW;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film. Wherein the vacuum degree of vacuum aluminizing is 0.9X10-2And (6) handkerchief.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure. The double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single-roller. And the PET or PVC original film enters from one side of the second glue homogenizing roller close to the single plate roller. In this example, the thickness of aluminum is
Example 3.
A production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode; in this example, the viscosity of the UV glue was T4 cup 35s, and the coating thickness was 6 μm;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film; wherein, the single plate roller is an inflatable single plate roller, and the inflation pressure is 5 kilograms in the embodiment; wherein, the single-plate mould pressing adopts UV cold light for curing, in the embodiment, the power of the UV cold light is 7 KW;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film. Wherein the vacuum degree of vacuum aluminizing is 0.9X10-2And (6) handkerchief.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure. The double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single-roller. And the PET or PVC original film enters from one side of the second glue homogenizing roller close to the single plate roller. In this example, the thickness of aluminum is
Example 4.
A production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode; in this example, the viscosity of the UV glue was T4 cup 28s, and the coating thickness was 4 μm;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film; wherein, the single plate roller is an inflatable single plate roller, and the inflation pressure is 4.2 kilograms in the embodiment; wherein, the single-plate mould pressing adopts UV cold light for curing, in the embodiment, the power of the UV cold light is 4 KW;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film. Wherein the vacuum degree of vacuum aluminizing is 0.9X10-2And (6) handkerchief.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure. The double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single-roller. The PET or PVC original film approaches to the single-roller from the second glue homogenizing rollerOne side is entered. In this example, the thickness of aluminum is
Example 5.
A production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode; in this example, the viscosity of the UV glue was T4 cup 32s, and the coating thickness was 5.5 μm;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film; wherein, the single plate roller is an inflatable single plate roller, and the inflation pressure is 4.8 kilograms in the embodiment; wherein, the single-plate mould pressing adopts UV cold light for curing, in the embodiment, the power of the UV cold light is 6 KW;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film. Wherein the vacuum degree of vacuum aluminizing is 0.9X10-2And (6) handkerchief.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure. The double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single-roller. And the PET or PVC original film enters from one side of the second glue homogenizing roller close to the single plate roller. In this example, the thickness of aluminum is
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A production process of a UV (ultraviolet) glue-dripping mould pressing seamless holographic film is characterized by comprising the following steps of: it comprises the following steps:
step one, connecting line UV glue dripping coating: coating the PET or PVC original film by adopting a UV glue dripping connection line coating mode;
step two, single-plate mould pressing: carrying out die pressing on the holographic nickel plate by utilizing the single plate roller through a laser engraving sleeve to obtain a PET or PVC seamless holographic film;
step three, aluminum plating: and (4) carrying out vacuum evaporation aluminum coating on the PET or PVC seamless holographic film obtained in the step two to obtain the UV drip molding seamless holographic film.
Wherein, the UV glue dripping connection line coating mode is a double-roller glue homogenizing structure.
2. The process for producing the UV drop-molding seamless holographic film according to claim 1, wherein: in the first step, the viscosity of the UV adhesive is 25-35 s in a T4 cup, and the coating thickness is 3-6 μm.
3. The process for producing the UV drop-molding seamless holographic film according to claim 1, wherein: in the second step, the single plate roller is an inflatable single plate roller, and the inflation pressure is 4-5 kg.
4. The process for producing the UV drop-molding seamless holographic film according to claim 1, wherein: in the second step, UV cold light is adopted for curing during the single-plate mould pressing, and the power of the UV cold light is 3-7 KW.
5. The process for producing the UV drop-molding seamless holographic film according to claim 1, wherein: the double-roller glue homogenizing structure comprises a first glue homogenizing roller and a second glue homogenizing roller which are in contact with each other, and the second glue homogenizing roller is close to the single roller.
6. The process for producing the UV drop-molding seamless holographic film according to claim 5, wherein: and the PET or PVC original film enters from one side of the second glue homogenizing roller close to the single plate roller.
7. The process for producing the UV drop-molding seamless holographic film according to claim 1, wherein: in the third step, the vacuum degree of the vacuum aluminizing is 0.9X10-2And (6) handkerchief.
8. The process for producing the UV drop-molding seamless holographic film according to claim 1, wherein: in the third step, the thickness of the aluminum is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865637.XA CN110614210A (en) | 2019-09-12 | 2019-09-12 | Production process of UV (ultraviolet) glue-dripping mould pressing seamless holographic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910865637.XA CN110614210A (en) | 2019-09-12 | 2019-09-12 | Production process of UV (ultraviolet) glue-dripping mould pressing seamless holographic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110614210A true CN110614210A (en) | 2019-12-27 |
Family
ID=68922847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910865637.XA Pending CN110614210A (en) | 2019-09-12 | 2019-09-12 | Production process of UV (ultraviolet) glue-dripping mould pressing seamless holographic film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110614210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112172108A (en) * | 2020-08-26 | 2021-01-05 | 江苏大亚新型包装材料有限公司 | Method for manufacturing seamless laser film |
| CN112497945A (en) * | 2020-11-09 | 2021-03-16 | 珠海市瑞明科技有限公司 | PET cat eye seamless non-positioning aluminized composite paper manufacturing process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060154050A1 (en) * | 2004-05-18 | 2006-07-13 | Toray Plastics (America), Inc., A Corporation Of Rhode Island | Holographic transfer thermoplastic sheet |
| US20090142612A1 (en) * | 2007-12-03 | 2009-06-04 | Wilkie Andrew F | Holographic films employing cycloolefin copolymers |
| CN102463757A (en) * | 2010-11-12 | 2012-05-23 | 武汉华工图像技术开发有限公司 | Preparation method of holographic transfer film for replacing holographic gold stamping |
| CN102535253A (en) * | 2011-12-29 | 2012-07-04 | 绍兴京昇光信息科技有限公司 | Production process of aluminum-foil-imitated direct plating paper |
| CN102529475A (en) * | 2011-12-29 | 2012-07-04 | 绍兴京华激光材料科技有限公司 | Laser holographic composite film and manufacture method thereof |
| CN103317874A (en) * | 2013-06-25 | 2013-09-25 | 海南赛诺实业有限公司 | Seamless PET (polyester) laser transfer membrane and preparation method thereof |
| CN103770376A (en) * | 2014-02-13 | 2014-05-07 | 朱丹华 | Gluing device |
| CN109732214A (en) * | 2018-12-18 | 2019-05-10 | 东莞光群雷射科技有限公司 | A kind of production technology of no color differnece, seamless and without interference lines laser holographic film |
-
2019
- 2019-09-12 CN CN201910865637.XA patent/CN110614210A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060154050A1 (en) * | 2004-05-18 | 2006-07-13 | Toray Plastics (America), Inc., A Corporation Of Rhode Island | Holographic transfer thermoplastic sheet |
| US20090142612A1 (en) * | 2007-12-03 | 2009-06-04 | Wilkie Andrew F | Holographic films employing cycloolefin copolymers |
| CN102463757A (en) * | 2010-11-12 | 2012-05-23 | 武汉华工图像技术开发有限公司 | Preparation method of holographic transfer film for replacing holographic gold stamping |
| CN102535253A (en) * | 2011-12-29 | 2012-07-04 | 绍兴京昇光信息科技有限公司 | Production process of aluminum-foil-imitated direct plating paper |
| CN102529475A (en) * | 2011-12-29 | 2012-07-04 | 绍兴京华激光材料科技有限公司 | Laser holographic composite film and manufacture method thereof |
| CN103317874A (en) * | 2013-06-25 | 2013-09-25 | 海南赛诺实业有限公司 | Seamless PET (polyester) laser transfer membrane and preparation method thereof |
| CN103770376A (en) * | 2014-02-13 | 2014-05-07 | 朱丹华 | Gluing device |
| CN109732214A (en) * | 2018-12-18 | 2019-05-10 | 东莞光群雷射科技有限公司 | A kind of production technology of no color differnece, seamless and without interference lines laser holographic film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112172108A (en) * | 2020-08-26 | 2021-01-05 | 江苏大亚新型包装材料有限公司 | Method for manufacturing seamless laser film |
| CN112497945A (en) * | 2020-11-09 | 2021-03-16 | 珠海市瑞明科技有限公司 | PET cat eye seamless non-positioning aluminized composite paper manufacturing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110614210A (en) | Production process of UV (ultraviolet) glue-dripping mould pressing seamless holographic film | |
| CN101672939B (en) | Apparatus for producing reflective membrane with microprism array structure | |
| CN102176082B (en) | Method for manufacturing reflecting film with micro-prism array structure | |
| CN103909757B (en) | The manufacture method of flexible printed board and its manufacture method and substrate for liquid crystal panel | |
| US20110293924A1 (en) | Housing structure for electronic device and manufacturing method thereof | |
| CN102354009A (en) | Equipment for producing reflection film with microprism array structure by using cylinder mould | |
| JP4116314B2 (en) | Manufacturing method of micro embossed sheet | |
| CN109732214A (en) | A kind of production technology of no color differnece, seamless and without interference lines laser holographic film | |
| CN106696158A (en) | Roll-to-roll hot rolling powder forming method and system for thin polymer film surface microstructure | |
| WO2010095402A1 (en) | Method and apparatus for manufacturing optical member having surface shape | |
| TWI774638B (en) | Laminating equipment | |
| CN106313437B (en) | Mold core and mold with air-conditioning panel die joint | |
| CN113725395B (en) | Current collector production device and production method | |
| JP4533542B2 (en) | Manufacturing method of micro embossed sheet | |
| CN102243326B (en) | Equipment for producing reflection film with microprism array structure by using annular strip die | |
| JP2009037916A (en) | A pair of heating and pressing roll, catalyst layer continuous transcription roll press device for fuel cell, and fuel cell membrane-electrode assembly (mea) manufactured by catalyst layer continuous transcription roll press device for fuel cell, and the mea manufacturing method using the roll press | |
| CN112172108A (en) | Method for manufacturing seamless laser film | |
| JP2001199002A (en) | Elastic rubber coated metal composite and method of manufacturing the sme | |
| CN102909931A (en) | Method for manufacturing decorative plate by heating forming and forming equipment thereof | |
| CN105856768A (en) | Foam plate with composite cast PET layer and manufacture method thereof | |
| JP5119228B2 (en) | Resin sheet manufacturing apparatus and manufacturing method | |
| TWM595585U (en) | Processing equipment for three-dimensional pattern on substrate surface | |
| CN205553464U (en) | Cystosepiment on compound hydrostomia PET layer | |
| CN215620682U (en) | Efficient bonding composite sheet continuous production device | |
| JP3392760B2 (en) | Manufacturing method of chemical resistant sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191227 |