CN102874001A - Surface printing process of coldly-stamped formed composite hard plate - Google Patents
Surface printing process of coldly-stamped formed composite hard plate Download PDFInfo
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- CN102874001A CN102874001A CN2012103741514A CN201210374151A CN102874001A CN 102874001 A CN102874001 A CN 102874001A CN 2012103741514 A CN2012103741514 A CN 2012103741514A CN 201210374151 A CN201210374151 A CN 201210374151A CN 102874001 A CN102874001 A CN 102874001A
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- polyamide film
- coupling agent
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- way stretching
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Abstract
Disclosed is a surface printing process of a coldly-stamped formed composite hard plate. After a biaxially-oriented polyamide film is subjected to two-side corona treatment, a water-based mono-component primer layer is coated on the outer surface of the polyamide film and sent into a drying tank to dry, a scratch-resistant nitrocotton resin ink layer is printed on the primer side of the dried biaxially-oriented polyamide film, an alcohol-soluble nitrocotton resin gloss oil layer is coated on the surface of the ink, and according to conventional process, composite glues are coated between the biaxially-oriented polyamide film and aluminum foil and a polyvinyl chloride film and are composited and formed with the same via dry type cold stamping. The surface printing process successfully solves the problem of difficulty in adhesion on the surface of the biaxially-oriented polyamide film.
Description
Technical field
The present invention relates to compound technique again after the seal in the printed apcksging material, especially a kind of table seal technique of cold stamping shaped composite hard sheet.
Background technology
For polyamide/aluminium foil/polyvinyl chloride medicine packing with the cold stamping composite hard sheet can not layering between cladding material after the cold stamping and aluminium foil requirement, now a lot of pharmaceutical factories all need the cold stamping composite of lettering, and the cold stamping composite of the lettering that provides on the market has the local mostly meeting layering of printing ink in use for some time.The reason of layering is that the adhesive force between printing ink and the polyamide does not have the adhesive force of pure glue resin and polyamide high, because a certain proportion of pigment that mixes in the printing ink just is equivalent to impurity, the particle diameter of pigment is larger than the molecular diameter of pure glue resin self.Even polyamide film base material composite bed is by the sided corona treatment mistake, the outside that also might ink particle be stuck in " corona hole ", cause between printing ink and the polyamide film adhesive force bad, peel strength 〉=3N/15mm that the printing ink place is arranged after tested, blank does not have the peel strength 〉=6N/15mm in the place of printing ink.Such composite hard sheet material is through behind the punching stretch, and outer polyamide material has a certain amount of shrinkage rates after stretching, and the contraction process of polyamide is veryer long.Contraction along with polyamide, will the layering because of the existence that printing ink impurity is arranged between polyamide and the aluminium foil, printing ink can be attached on the aluminium foil, time grown between polyamide and the aluminium foil layering by weak spot begin layering, slowly the place layering becomes the line layering, becomes the face layering by the line layering at last, it is just very ugly that the time has been grown cold stamping shaped bubble-cap.
In numerous packaging material, two-way stretching polyamide film is because its excellent heat-resisting quantity, durability, and resistance to chemical attack ability and the high grade of transparency have obtained increasingly extensive favor.But two-way stretching polyamide belongs to the nonabsorbable printable fabric, and surface tension is lower, and printing ink and adhesive usually can not be with the effective combinations of two-way stretching polyamide ground, causes deinking or comes unstuck, and affects product quality.In intaglio printing, base gravure ink is because of instantaneous curing, and the adhesive force on two-way stretching polyamide is concrete challenge especially.Traditionally, sided corona treatment is brought up to the surface tension of polyamide film more than the 38dyn, but the material surface tension stability that sided corona treatment is crossed is poor, if can not use within a period of time, just corona can lose efficacy.And some two-way stretching polyamide materials can't be used sided corona treatment.For a long time, packing and printing industry are being sought one efficiently always, stable two-way stretching polyamide film surface adhesion force solution.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of table seal technique of cold stamping shaped composite hard sheet.The present invention realizes by following technical step:
(1) two-way stretching polyamide film is carried out two-sided sided corona treatment after, the polyamide outer surface after sided corona treatment coating one deck water-based mono-component silane coupling agent again, the M6529 that this silane coupling agent selects du pont company to produce; Coating thickness 1um, coating weight is 1 g/m, it is 20-25s that production process is controlled the viscosity of silane coupling agent well;
This silane coupling agent is the water-based glue of one pack system, and is good with the polyamide bonding intensity, secondly is non-solvent, environmental protection, safety.
Two-way stretching polyamide film behind the coating silane coupling agent is sent into the drying box oven dry that is comprised of four joint baking ovens, and it is 40 ℃, 50 ℃, 65 ℃, 75 ℃ that the temperature of baking oven sets gradually, and the air quantity of each baking oven is controlled at 3000m
3/ h, under above-mentioned baking condition, total drying box drying time is 3-5 minute;
(2) two-way stretching polyamide film of drying prints the nitrocotton resin printing ink that one deck has scraping and wiping resistance performance at primary coat face;
Owing to be to contain the base material printing nitrocotton printing ink of silane coupling agent, thereby scraping and wiping resistance performance is good.
(3) at the nitrocotton resin gloss oil of surface-coated one deck of printing ink alcohol dissolubility, coating weight is 0.8-1.2 g/ms; This gloss oil is the nitrocotton resin gloss oil of pure dissolubility, has the characteristics of environmental protection, the hard scratch-resistant of material.Gloss oil plays a protective role to printing ink during cold stamping, and mould rubs printing ink and polyamide film scuffing when avoiding cold stamping, reduces to greatest extent the phenomenon of broken bubble.
(4) technique is routinely carried out dry cold punching press composite molding behind the coating composite glue between two-way stretching polyamide film and aluminium foil and the polyvinyl chloride film.
As preferred version of the present invention,
The silane coupling agent coating of described step (1) adopts intaglio plate net roller printing technique that two-way stretching polyamide film is applied; Step (2) also adopts intaglio plate net roller printing technique printing ink layer.
The two-way stretching polyamide silane coupling agent that the present invention uses adopts advanced environment-friendly materials technology, through well-designed, have specific functional groups, can roll into a ball effective combination with the polarity of two-way stretching polyamide substrate surface, produce the coating of high cohesive force, for printing ink plays good bottoming effect.On the two-way stretching polyamide film surface that has applied silane coupling agent, base gravure ink can not come off by the test of hundred lattice smoothly.In addition, our two-way stretching polyamide film silane coupling agent rate of drying is fast, under the baking conditions of 100 degree, can be in three minutes bone dry, be fit to the needs that the large industrialized streamline is produced, improved widely production efficiency.
The present invention has successfully solved the problem that two-way stretching polyamide surface difficulty is adhered to, and the lifting of packing quality for two-way stretching polyamide film plays a role in promoting, and has also laid good basis for cold stamping formed composite hard sheet for packaging medicines table seal technique.
Description of drawings
Fig. 1 is product structure schematic diagram of the present invention.
Number in the figure: 1-gloss oil, 2-printing ink, 3-primary coat face, 4-two-way stretching polyamide film, 5-composite glue, 6-aluminium foil, 7-polyvinyl chloride hard sheet.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the present invention is coated with first one deck water-based mono-component silane coupling agent at the skin of two-way stretching polyamide film, the M6529 that this silane coupling agent selects du pont company to produce, and silane coupling agent is to do dispersant with water, have the harmful toxic matters such as nontoxic, heavy metal free, meet the theory that environmental protection is used.This silane coupling agent can not burn under the external environment of hyperthermia drying, does not have the danger of blast.
We select intaglio plate net roller coat cloth to silane coupling agent in the mode of two-way stretching polyamide film surface-coated, and in laser roller of roller manufacturer customization, it is 130L/40u that roller requires.Control the viscosity 20-25s of primary coat in the production process well, thickness is at 1um, and coating weight is 1 g/m.Send into the drying box oven dry that is comprised of four joint baking ovens after the primary coat, it is 40 ℃, 50 ℃, 65 ℃, 75 ℃ that the temperature of baking oven sets gradually, and the air quantity of each baking oven is controlled at 3000m
3/ h, total drying box drying time is 3-5 minute, and the silane coupling agent on two-way stretching polyamide surface just can be dried like this, and the heat-resisting quantity of primary coat just can embody.
Just can be on primary coat face after the surface treatment of two-way stretching polyamide well printing-ink, printing also is to use intaglio plate net roller, in electric carving roller of roller factory customization, roller is carved situation and is carved by electric component.The table printing ink of two-way stretching polyamide uses nitrocotton resin printing ink, dry printing ink ink film is harder like this, scraping and wiping resistance performance good, is well suited for cold stamping formed composite hard sheet for packaging medicines and swipes, makes the danger that stops that printing ink is rubbed in forming process because of two-way stretching polyamide surface and mould.The product that obtains according to above-mentioned table seal technique just can satisfy the instructions for use of printing cold stamping shaped material.
The two-way stretching polyamide material that printed printing ink republishes the nitrocotton resin gloss oil of one deck alcohol dissolubility, just can carry out next procedure according to routine techniques, namely carry out dry cold punching press composite molding behind the coating composite glue between two-way stretching polyamide film and aluminium foil and the polyvinyl chloride film.The product structure of the cold stamping shaped composite hard sheet table seal technique that obtains is: the cold stamping shaped composite hard sheet of gloss oil/printing ink/silane coupling agent/polyamide film/composite glue/aluminium foil/composite glue/polyvinyl chloride, the characteristics of this sheet material are that the two-way stretching polyamide material is fit to surface printing after double treatment, can reduce to greatest extent cold stamping shaped polyamide and aluminium foil lamination.Do not have printing-ink between two-way stretching polyamide film and the aluminium foil, the peel strength between two-way stretching polyamide film and the aluminium foil is uniformly so, just can not peel off between dry cold punch forming process two-way stretching polyamide film and aluminium foil.
Claims (3)
1. the table seal technique of a cold stamping shaped composite hard sheet is characterized in that step is as follows:
(1) two-way stretching polyamide film is carried out two-sided sided corona treatment after, the polyamide outer surface after sided corona treatment coating one deck water-based mono-component silane coupling agent again, the M6529 that this silane coupling agent selects du pont company to produce;
Two-way stretching polyamide film behind the coating silane coupling agent is sent into the drying box oven dry that is comprised of four joint baking ovens, and it is 40 ℃, 50 ℃, 65 ℃, 75 ℃ that the temperature of baking oven sets gradually, and the air quantity of each baking oven is controlled at 3000m
3/ h, under above-mentioned baking condition, total drying box drying time is 3-5 minute;
(2) two-way stretching polyamide film of drying prints the nitrocotton resin printing ink that one deck has scraping and wiping resistance performance at primary coat face;
(3) at the nitrocotton resin gloss oil of surface-coated one deck of printing ink alcohol dissolubility, coating weight is 0.8-1.2 g/ms;
(4) technique is routinely carried out dry cold punching press composite molding behind the coating composite glue between two-way stretching polyamide film and aluminium foil and the polyvinyl chloride film.
2. table seal technique according to claim 1 is characterized in that the silane coupling agent coating of described step (1) adopts intaglio plate net roller printing technique that two-way stretching polyamide film is applied; The coating thickness 1um of silane coupling agent, coating weight is 1 g/m, the viscosity of silane coupling agent is 20-25s.
3. table seal technique according to claim 1 is characterized in that step (2) adopts intaglio plate net roller printing technique printing ink layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374151.4A CN102874001B (en) | 2012-10-07 | 2012-10-07 | Surface printing process of coldly-stamped formed composite hard plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210374151.4A CN102874001B (en) | 2012-10-07 | 2012-10-07 | Surface printing process of coldly-stamped formed composite hard plate |
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| CN102874001A true CN102874001A (en) | 2013-01-16 |
| CN102874001B CN102874001B (en) | 2015-02-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103252944A (en) * | 2013-05-28 | 2013-08-21 | 无锡市华泰医药包装有限公司 | Aluminum foil for anti-fake medicine package and production technique thereof |
| CN107487096A (en) * | 2017-08-01 | 2017-12-19 | 界首市宏利塑料有限公司 | A kind of surface of plastic products wear resistance print technique |
| CN108441129A (en) * | 2018-02-09 | 2018-08-24 | 江阴宝柏包装有限公司 | The gluing medical device package material totally removed and preparation method can be stablized |
| CN108515769A (en) * | 2018-04-10 | 2018-09-11 | 南通恒鑫新材料有限公司 | A kind of preparation process of high masking aluminum-plastic composite membrane |
| CN109413773A (en) * | 2017-08-18 | 2019-03-01 | 王敏 | A kind of production method of graphene Electric radiant Heating Film (electric hot plate) electric heating a heatable brick bed plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252944A (en) * | 2013-05-28 | 2013-08-21 | 无锡市华泰医药包装有限公司 | Aluminum foil for anti-fake medicine package and production technique thereof |
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| CN107487096A (en) * | 2017-08-01 | 2017-12-19 | 界首市宏利塑料有限公司 | A kind of surface of plastic products wear resistance print technique |
| CN107487096B (en) * | 2017-08-01 | 2019-04-23 | 界首市宏利塑料有限公司 | A kind of surface of plastic products wear resistance print technique |
| CN109413773A (en) * | 2017-08-18 | 2019-03-01 | 王敏 | A kind of production method of graphene Electric radiant Heating Film (electric hot plate) electric heating a heatable brick bed plate |
| CN108441129A (en) * | 2018-02-09 | 2018-08-24 | 江阴宝柏包装有限公司 | The gluing medical device package material totally removed and preparation method can be stablized |
| CN108441129B (en) * | 2018-02-09 | 2021-08-13 | 江阴宝柏包装有限公司 | Rubber-coated medical instrument packaging material capable of being stably and cleanly peeled and preparation method thereof |
| CN108515769A (en) * | 2018-04-10 | 2018-09-11 | 南通恒鑫新材料有限公司 | A kind of preparation process of high masking aluminum-plastic composite membrane |
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| CN102874001B (en) | 2015-02-11 |
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Address after: 650000 plot b-4-7, high tech industrial base, new town, high tech Zone, Kunming City, Yunnan Province Patentee after: Yunnan Mingbo Industrial Co.,Ltd. Address before: High-tech Investment Promotion Building, No. 6, Haiyuan North Road, High-tech Zone, Kunming City, Yunnan Province, 650101 Patentee before: YUNNAN MINGBO PACKAGING AND PRINTING CO.,LTD. |