CN111806077A - Gravure online fine gold stamping device and gold stamping process for tipping paper - Google Patents

Gravure online fine gold stamping device and gold stamping process for tipping paper Download PDF

Info

Publication number
CN111806077A
CN111806077A CN202010632246.6A CN202010632246A CN111806077A CN 111806077 A CN111806077 A CN 111806077A CN 202010632246 A CN202010632246 A CN 202010632246A CN 111806077 A CN111806077 A CN 111806077A
Authority
CN
China
Prior art keywords
cold
gravure
tipping paper
stamping
glue
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
Application number
CN202010632246.6A
Other languages
Chinese (zh)
Inventor
尹检君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Justo Packaging Co ltd
Original Assignee
Qingdao Justo Packaging Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Justo Packaging Co ltd filed Critical Qingdao Justo Packaging Co ltd
Priority to CN202010632246.6A priority Critical patent/CN111806077A/en
Publication of CN111806077A publication Critical patent/CN111806077A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F19/00Apparatus or machines for carrying out printing operations combined with other operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F19/00Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403Drying webs
    • B41F23/0406Drying webs by radiation
    • B41F23/0409Ultraviolet dryers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08Print finishing devices, e.g. for glossing prints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17Dry transfer
    • B44C1/1712Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1729Hot stamping techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Printing Methods (AREA)

Abstract

The utility model provides a meticulous gilt device of china cypress paper gravure online and gilt technology, the device is installed between the non-standard printing color group and the glazing unit of gravure press, including the gravure cold perm frame, the paper guide roll is installed to the lower part both sides of gravure cold perm frame, install glue groove, cold perm version roller set, precuring UV lamp, cold perm compression roller set, solidification UV banks, rolling machine, unreeling machine from bottom to top in the gravure cold perm frame in proper order, the cooperation of rolling machine, unreeling machine is accomplished receiving and releasing cold perm membrane, cold perm version roller set carries out the coating of cold perm glue to the china cypress paper, the transfer of gilt effect is accomplished to the laminating of china cypress paper and cold perm membrane to cold perm compression roller set, need not heating device, and energy saving consumes, and overprinting is accurate.

Description

Gravure online fine gold stamping device and gold stamping process for tipping paper
Technical Field
The invention belongs to the technical field of printing, and particularly relates to a gravure online fine gold stamping device and a gold stamping process for tipping paper.
Background
The tipping paper for cigarette is a special industrial paper, and is one of the main materials of tobacco package. With the improvement of the consumption level, the decoration process of the surface of the tipping paper is more and more exquisite, and most of high-grade tipping paper adopts the gold stamping process to improve the product grade.
At present, the gilding of the tipping paper basically adopts a hot stamping process, and an effect coating on a gilding foil is transferred to the tipping paper only under certain temperature and pressure. The tipping paper for cigarettes is generally very thin, and hot stamping needs high hot stamping pressure to be carried out on the thin paper, so that the hot stamped lines are thick and the products are not fine enough.
The tipping paper for cigarettes directly contacts the lips of consumers, and the requirement on the sanitation index is very strict. The traditional blanching process inevitably causes plate pasting, and the partially attached gold foil is likely to be sucked by consumers. There is a safety and hygiene risk.
The traditional hot stamping process cannot be produced with a gravure press on line, patterns are printed and then transferred to a stamping machine for stamping, and the nesting position of the stamping patterns and the printed patterns is poor.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention aims to provide a gravure online fine gold stamping device and a gold stamping process for tipping paper.
The technical scheme provided by the invention is that the gravure online fine gold stamping device for the tipping paper is arranged between a non-stage printing color group and a glazing unit of a gravure press, and comprises a gravure cold-stamping rack, wherein paper guide rollers are arranged on two sides of the lower part of the gravure cold-stamping rack, a glue tank, a cold-stamping plate roller set, a pre-curing UV lamp, a cold-stamping roller set, a curing UV lamp set, a winding machine and a unreeling machine are sequentially arranged in the gravure cold-stamping rack from bottom to top, the winding machine and the unreeling machine are matched to complete the reeling and unreeling of a cold-stamping film, the cold-stamping plate roller set comprises a pressure roller and a cold-stamping plate roller which are arranged from top to bottom, the tipping paper is coated with cold-stamping glue, and the cold-stamping roller set comprises a cold-stamping pressure roller and a cushion roller which are arranged from top to bottom, so that the gold stamping effect is transferred.
And the cold stamping roller is engraved with contents needing to be stamped on the tipping paper.
The interior of the glue groove is trapezoidal, and gravure cold-stamping glue is filled in the glue groove.
And a scraper is arranged on one side of the cold-stamping roller and is in line contact with the cold-stamping roller to scrape off redundant glue.
The gravure cold wave glue is a gravure cold wave glue meeting the environmental protection level of tipping paper, and specifically comprises the following components in parts by weight: 75-85% of polyurethane acrylic resin and 10-15% of pure solid propyleneAcid resin, 8-10% of photoinitiator and 1-2% of auxiliary agent, wherein the viscosity of the gravure cold wave glue is more than 10Pa.s, and the fluidity is more than 38mm3/s。
And the curing UV lamps of the curing UV lamp set are linearly arranged, and the distances between the curing UV lamps and the tipping paper are equal.
The process for carrying out gold stamping by the fine gold stamping device on the tipping paper gravure online comprises the following steps:
firstly, coating the color of tipping paper: the tipping paper is subjected to a non-grade printing color set to finish color coating;
secondly, coating the tipping paper cold-wave glue: the method comprises the following steps that contents engraved on a cold-stamping roller are contents needing to be stamped on the tipping paper, gravure cold-stamping glue is coated on the cold-stamping roller, redundant glue is scraped off under the action of a scraper, the tipping paper enters a space between the cold-stamping roller and a pressure roller through the traction of a paper guide roller, the glue coated on the cold-stamping roller is transferred to the surface of the tipping paper, the coating of the cold-stamping glue is completed, and then the precuring is completed through the irradiation of a precuring UV lamp;
thirdly, cold-ironing film lamination: the tipping paper pre-cured by the cold-stamping glue enters a cold-stamping press roller and a backing roller, is attached to a cold-stamping film to finish the transfer of the gold-stamping effect, and is irradiated by a post-curing UV lamp group after being transferred onto the tipping paper so as to be completely attached to the surface of the tipping paper;
fourthly, coating a water-based varnish protective layer: the tipping paper after the cold-wave film transfer enters a glazing unit, and a water-based varnish protective layer is coated on the surface of the cold-wave film to prevent the cold-wave pattern from falling off.
The tipping paper gravure online fine gold stamping device and the gold stamping process provided by the invention have the beneficial effects that a heating device is not needed, the energy consumption is saved, a gravure plate is used for coating cold stamping glue, the cost is lower than that of a traditional hot stamping plate, the plate making period is shorter, the hot stamping effect is finer than that of the traditional hot stamping, a fine line with the width of 0.03mm can be stamped, the fine line is thinner than that of the traditional hot stamping line, the thickness uniformity of the line is better, the gloss oil protection is adopted after the hot stamping, the gloss oil coating layer is directly contacted with lips of consumers instead of a gold stamping film layer, the device is safer and more sanitary, an independent gold stamping process is omitted, the overprinting is completed on an online printing machine and a printing process, the overprinting is more accurate, the printing speed can be increased to 150 m/min, the speed is increased to one part compared with the traditional hot stamping speed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The figure is marked with:
1. a non-graded printing color set; 2. gravure cold wave frame; 3. a glazing unit; 4. tipping paper; 5. paper guide rollers; 6. cold stamping the printing roller; 7 a pressure roller; 8. gravure cold-wave glue; 9. a scraper; 10. pre-curing a UV lamp; 11. a backing roller; 12. cold ironing press rolls; 13. cold-ironing the film; 14. an unreeling machine; 15. a winding machine; 16. curing the UV lamp set; 17. a glue tank.
Detailed Description
The following describes the fine gold stamping device and gold stamping process of the gravure on-line process of the tipping paper according to the present invention in detail with reference to the accompanying drawings and an embodiment.
Examples
Referring to fig. 1, the meticulous gilt device of china cypress paper gravure on-line of this embodiment installs between the non-level printing color set 1 and the glazing unit 3 of gravure press, including gravure cold perm frame 2, lead paper roll 5 is installed to the lower part both sides of gravure cold perm frame 2, install glue groove 17, cold perm version roller set, precuring UV lamp 10, cold perm compression roller set, solidification UV lamp set 16, rolling machine 15, unreel machine 14 from bottom to top in the gravure cold perm frame 2 in proper order, the cooperation of rolling machine 15, unreel machine 14 is accomplished to receiving and releasing of cold perm membrane, cold perm version roller set includes pressure roller 7 and the cold perm version roller 6 that set up from top to bottom, carries out the coating of cold perm glue to china cypress paper 4, cold perm compression roller set includes cold perm compression roller 12 and backing roll 11 that set up from top to bottom, accomplishes the transfer of effect to the laminating of china cypress paper 4 and cold perm membrane 13.
The cold stamping roller 6 is engraved with contents needing to be stamped on tipping paper.
The inside of the glue groove 17 is trapezoidal, and the gravure cold wave glue 8 is arranged in the glue groove.
And a scraper 9 is arranged on one side of the cold-ironing roller 6, and the scraper 9 is in line contact with the cold-ironing roller 6 and is used for scraping off redundant glue.
The gravure cold wave glue 8 is a gravure cold wave glue meeting the environmental protection level of tipping paper, and specifically comprises the following components in parts by weight: 80% of polyurethane acrylic resin, 12% of pure solid acrylic resin, 9% of photoinitiator and 1.5% of auxiliary agent, wherein the viscosity of the gravure cold wave glue is more than 10Pa.s, and the fluidity is more than 38mm3/s。
The curing UV lamps of the curing UV lamp set 16 are linearly arranged, and the distances between the curing UV lamps and the tipping paper are equal.
The process for carrying out gold stamping by the fine gold stamping device on the tipping paper gravure online comprises the following steps:
firstly, coating the color of tipping paper: finishing color coating after the tipping paper passes through an unscale printing color set;
secondly, coating the tipping paper cold-wave glue: the process allows the design of extremely fine line gold stamping and even dot gold stamping, intaglio cold stamping glue is coated on the cold stamping roller, redundant glue is scraped off under the action of a scraper and transferred to the surface of the tipping paper, the tipping paper enters between the cold stamping roller and a pressure roller through the traction of a paper guide roller, the glue coated on the cold stamping roller is transferred to the surface of the tipping paper, the coating of the cold stamping glue is completed, and then the precuring is completed through the irradiation of a precuring UV lamp;
thirdly, cold-ironing film lamination: the tipping paper pre-cured by the cold-stamping glue enters a cold-stamping press roller and a backing roller, is attached to a cold-stamping film to finish the transfer of the gold-stamping effect, and is irradiated by a post-curing UV lamp group after being transferred onto the tipping paper so as to be completely attached to the surface of the tipping paper;
fourthly, coating a water-based varnish protective layer: the tipping paper after the cold-wave film transfer enters a glazing unit, and a water-based varnish protective layer is coated on the surface of the cold-wave film to prevent the cold-wave pattern from falling off.
The coiling and uncoiling of the cold foil is controlled by an uncoiler and a coiler.
The method comprises the steps of firstly printing patterns on the tipping paper by a gravure press, then printing UV cold-stamping glue on a color group provided with a cold-stamping gold device, solidifying the UV cold-stamping glue, compounding a cold-stamping film and the tipping paper by a pressure roller, uncovering the cold-stamping film, and adhering a gold-stamping film layer on the part printed with the cold-stamping glue. The gloss oil protective layer is coated on the back of the cold stamping color group to protect cold stamping patterns, so that an independent stamping process is omitted, the printing speed can be increased by 150 m/min, the printing speed is increased by one time compared with the traditional hot stamping speed, the production effect can be greatly improved, the gloss oil protective layer and the printing process are completed on one machine, a heating device is not needed, and the energy consumption is saved.

Claims (7)

1. The utility model provides a meticulous gilt device of china cypress paper gravure on-line, installs between the not level printing colour group and the glazing unit of gravure press, its characterized in that: including gravure cold wave frame (2), lead paper roll (5) are installed to the lower part both sides of gravure cold wave frame (2), by down up installing glue groove (17), cold wave version roller set, pre-curing UV lamp (10), cold wave compression roller set, solidification UV banks (16), rolling machine (15), unreeling machine (14) in proper order in gravure cold wave frame (2), receive and release winding of membrane is accomplished to cold wave in rolling machine (15), unreeling machine (14) cooperation, cold wave version roller set is including pressure roller (7) and the cold wave version roller (6) that set up from top to bottom, carries out the coating of cold wave glue to china cypress paper (4), cold wave compression roller set is including cold wave compression roller (12) and backing roll (11) that set up from top to bottom, accomplishes the transfer of gilt effect to china cypress paper (4) and cold wave membrane (13) laminating.
2. The tipping paper gravure online fine gold stamping device according to claim 1, characterized in that: the cold stamping roller (6) is engraved with contents needing to be stamped on tipping paper.
3. The tipping paper gravure online fine gold stamping device according to claim 1, characterized in that: the interior of the glue groove (17) is trapezoidal, and gravure cold-wave glue (8) is arranged in the glue groove.
4. The tipping paper gravure online fine gold stamping device according to claim 1, characterized in that: and a scraper (9) is arranged on one side of the cold-ironing roller (6), and the scraper (9) is in line contact with the cold-ironing roller (6) and is used for scraping off redundant glue.
5. The tipping paper gravure online fine gold stamping device according to claim 3, characterized in that: the gravure cold wave glue (8) is a gravure cold wave glue meeting the environmental protection level of the tipping paper, and specifically comprises the following components in parts by weight: 75-85% of polyurethane acrylic resin, 10-15% of pure solid acrylic resin, 8-10% of photoinitiator and 1-2% of auxiliary agent, wherein the viscosity of the gravure cold wave glue is more than 10Pa.s, and the fluidity is more than 38mm 3/s.
6. The tipping paper gravure online fine gold stamping device according to claim 1, characterized in that: the curing UV lamps of the curing UV lamp set (16) are linearly arranged, and the distances between the curing UV lamps and the tipping paper are equal.
7. The process of the fine gold stamping device for the gravure online of the tipping paper for the gold stamping according to any one of claims 1 to 6, which is characterized in that: the method comprises the following steps:
firstly, coating the color of tipping paper: the tipping paper is subjected to a non-grade printing color set to finish color coating;
secondly, coating the tipping paper cold-wave glue: the method comprises the following steps that contents engraved on a cold-stamping roller are contents needing to be stamped on the tipping paper, gravure cold-stamping glue is coated on the cold-stamping roller, redundant glue is scraped off under the action of a scraper, the tipping paper enters a space between the cold-stamping roller and a pressure roller through the traction of a paper guide roller, the glue coated on the cold-stamping roller is transferred to the surface of the tipping paper, the coating of the cold-stamping glue is completed, and then the precuring is completed through the irradiation of a precuring UV lamp;
thirdly, cold-ironing film lamination: the tipping paper pre-cured by the cold-stamping glue enters a cold-stamping press roller and a backing roller, is attached to a cold-stamping film to finish the transfer of the gold-stamping effect, and is irradiated by a post-curing UV lamp group after being transferred onto the tipping paper so as to be completely attached to the surface of the tipping paper;
fourthly, coating a water-based varnish protective layer: the tipping paper after the cold-wave film transfer enters a glazing unit, and a water-based varnish protective layer is coated on the surface of the cold-wave film to prevent the cold-wave pattern from falling off.
CN202010632246.6A 2020-07-03 2020-07-03 Gravure online fine gold stamping device and gold stamping process for tipping paper Pending CN111806077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010632246.6A CN111806077A (en) 2020-07-03 2020-07-03 Gravure online fine gold stamping device and gold stamping process for tipping paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010632246.6A CN111806077A (en) 2020-07-03 2020-07-03 Gravure online fine gold stamping device and gold stamping process for tipping paper

Publications (1)

Publication Number Publication Date
CN111806077A true CN111806077A (en) 2020-10-23

Family

ID=72856071

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010632246.6A Pending CN111806077A (en) 2020-07-03 2020-07-03 Gravure online fine gold stamping device and gold stamping process for tipping paper

Country Status (1)

Country Link
CN (1) CN111806077A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113879036A (en) * 2021-09-02 2022-01-04 东莞金杯印刷有限公司 Low-temperature plateless gold stamping process
CN114055920A (en) * 2021-11-23 2022-02-18 青岛嘉泽包装有限公司 Gravure online fine gold stamping device and gold stamping process for tipping paper
CN114953724A (en) * 2021-07-23 2022-08-30 上海九裕纺织科技有限公司 Positioning gold stamping and silver stamping technology and application thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201120765Y (en) * 2007-09-28 2008-09-24 玉溪誉诚科技有限公司 Circularly pressing and scalding color-printing group with photoresist coating unit
CN101480867A (en) * 2008-01-12 2009-07-15 中山市松德包装机械股份有限公司 Method for realizing multi-color-class positioning cold wave transfer printing
CN202378410U (en) * 2011-12-09 2012-08-15 广东金玉兰包装机械有限公司 Paper cold/hot transfer equipment
CN102964915A (en) * 2012-11-23 2013-03-13 东莞市佳烨化工科技有限公司 Ultraviolet (UV) screen plastic film printing ink and method for preparing same
CN103770486A (en) * 2013-12-30 2014-05-07 深圳市柏星龙创意包装股份有限公司 Cold ironing technology and UV glue applied to technology
CN205149161U (en) * 2015-10-28 2016-04-13 玉溪环球彩印纸盒有限公司 Cold transfer device of gravure production line electrification aluminium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201120765Y (en) * 2007-09-28 2008-09-24 玉溪誉诚科技有限公司 Circularly pressing and scalding color-printing group with photoresist coating unit
CN101480867A (en) * 2008-01-12 2009-07-15 中山市松德包装机械股份有限公司 Method for realizing multi-color-class positioning cold wave transfer printing
CN202378410U (en) * 2011-12-09 2012-08-15 广东金玉兰包装机械有限公司 Paper cold/hot transfer equipment
CN102964915A (en) * 2012-11-23 2013-03-13 东莞市佳烨化工科技有限公司 Ultraviolet (UV) screen plastic film printing ink and method for preparing same
CN103770486A (en) * 2013-12-30 2014-05-07 深圳市柏星龙创意包装股份有限公司 Cold ironing technology and UV glue applied to technology
CN205149161U (en) * 2015-10-28 2016-04-13 玉溪环球彩印纸盒有限公司 Cold transfer device of gravure production line electrification aluminium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
钟云飞: "《大学生生产实习规范与指导》", 31 August 2019, 文化发展出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114953724A (en) * 2021-07-23 2022-08-30 上海九裕纺织科技有限公司 Positioning gold stamping and silver stamping technology and application thereof
CN113879036A (en) * 2021-09-02 2022-01-04 东莞金杯印刷有限公司 Low-temperature plateless gold stamping process
CN114055920A (en) * 2021-11-23 2022-02-18 青岛嘉泽包装有限公司 Gravure online fine gold stamping device and gold stamping process for tipping paper

Similar Documents

Publication Publication Date Title
CN111806077A (en) Gravure online fine gold stamping device and gold stamping process for tipping paper
CN101524930B (en) More environment-friendly print transferring method
CN102529480B (en) Surface calendering method of paper packaging material and device for implementing method
CN100519217C (en) Film-transferring printing method
CN104608370A (en) Roll-to-roll based UV cured polymer film surface microstructure processing system and method
CN201151231Y (en) Multi-color-class positioning cold wave transfer printing machine
CN101480867A (en) Method for realizing multi-color-class positioning cold wave transfer printing
CN101927622A (en) New process for realizing intaglio printing online cold-foil transferring
CN101947895A (en) Method for making local laser marks on surface of printing material
CN204222416U (en) The production line of opal, embossment laser holographic transfer paperboard
CN106436483A (en) Digital printing transparent tipping paper and making method
CN202062796U (en) Ultraviolet (UV) mould pressing machine
CN202378410U (en) Paper cold/hot transfer equipment
CN102717616A (en) Cold-ironing type gold stamping technology and gold stamping mechanism thereof
CN202186102U (en) Gravure printing device functional in direct printing of ultraviolet (UV) gloss oil as well as online gravure and letterpress printing
CN203637335U (en) Oil polishing system for playing card gravure
CN103552372B (en) Have the cycle type multi-color printing ink printed unit of UV cold wave and UV press printing function concurrently
CN111361322A (en) Production method for producing high-precision chromatography thermoprinting tipping paper on line
CN205522982U (en) Radium -shine transfer machine
CN101941338A (en) New process for realizing inline positioning and cold stamping of intaglio printing and transferring of positioned C2
CN110816091B (en) Method for changing gravure pearlescent ink into online flexo printing
CN205467866U (en) Gilding press based on synchronous gilt printing technology of flower bud silk tablecloth
CN202079900U (en) Printer for realizing on-line cold stamping and transferring of intaglio printing
CN201253988Y (en) Laser pattern stamping displacement and cold wave double-duty production line
CN201597238U (en) Device for obtaining holographic pattern and printer provided with same

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: 20201023