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Method for producing polyvinyl alcohol laminated paper, polyvinyl alcohol laminated paper and cosmetic box

A technology of polyvinyl alcohol and its manufacturing method, which is applied in the direction of chemical instruments and methods, boxes, coatings, etc., can solve the problems of non-hygroscopicity, concave curvature, etc., and achieve the effects of easy recycling, cost reduction, and excellent quality

Active Publication Date: 2012-08-29
GOJO PAPER MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, it is known that the water-soluble polyvinyl alcohol layer bonded to the paper substrate has hygroscopicity, and among the above-mentioned laminated papers for cushioning members, for example, the PET film does not have hygroscopicity, so the PET film of the paper is laminated. When the film is facing upwards, the laminated paper will produce a concave phenomenon (refer to Figure 5 )

Method used

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  • Method for producing polyvinyl alcohol laminated paper, polyvinyl alcohol laminated paper and cosmetic box
  • Method for producing polyvinyl alcohol laminated paper, polyvinyl alcohol laminated paper and cosmetic box
  • Method for producing polyvinyl alcohol laminated paper, polyvinyl alcohol laminated paper and cosmetic box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The use width is 800mm, the basis weight is 279g / m 2 Cast-coated paper ("GLORIA" made by Gojo Paper) as the base paper, and vacuum-plated aluminum on the PVA film ("BOVLON" (thickness 12μm) made by Nippon Gosei), and then the PVA film is vacuum deposited here Above, using a wet laminator, the coating amount of the coating as the adhesive is 3g / m 2 Ethylene-vinyl acetate copolymer resin ("DB314" manufactured by Saiden Chemicals (53% concentration, 500mPa·s)), and then the PVA film surface is bonded to the coated surface of the cast-coated paper to protect the aluminized surface Use a gravure coater to coat a polyester primer ("UVprimer" made by DIC) with a thickness of 1μm to provide a primer layer, and then dry to obtain polyethylene Alcohol laminated paper. At this time, the laminator speed was 100m / min, and the drying temperature was 90°C.

[0055] Five colors (white, black, blue, red, yellow) are printed on the above-mentioned polyvinyl alcohol laminated paper using a ...

Embodiment 2

[0057] The use width is 800mm, and the basis weight is 310g / m 2 Coated paper ("JET ACE" made by Japan's Daishow Paperboard) as the backing paper, using a wet laminator, vacuum-plated aluminum on the PVA film ("BOVLON" made by Nippon Gosei (12μm thick)), and On the vacuum-plated PVA film, using a wet laminator, the coating amount as a binder is 4g / m 2 Acrylic copolymer resin (Saiden Chemical "PZ905" (concentration 47%, viscosity 1,250mPa·s)), and then the PVA film surface and the coated surface of the coated paper are laminated to protect the vaporization of the aluminum-plated surface For plating and improving printability, a gravure coater was used to coat the same polyester primer ("UV primer" made by DIC) with a thickness of 1 μm as in Example 1 to provide a primer layer, and then dried to obtain polyethylene Alcohol laminated paper. At this time, the laminator speed was 100m / min, and the drying temperature was 90°C.

[0058] After printing on the above-mentioned polyvinyl al...

Embodiment 3

[0061] The use width is 800mm, the basis weight is 315g / m 2 The cast-coated paper (GLORIA, manufactured by Gojo Paper Co., Ltd.) was used as the base paper, and the PVA film ("BOVLON" (thickness 14μm) manufactured by Nippon Gosei) was coated as the adhesive coating using a wet laminator The amount is 5g / m 2 Ethylene-vinyl acetate copolymer resin (Konishi "SP2850" (51% concentration, viscosity 3,000mPa·s)), the PVA film surface is bonded to the coated surface of the cast-coated paper, dried and rolled into a roll , Thereby forming a laminated paper of PVA film and coated paper. Use a foil ("NAFTAP" manufactured by Nakai Kogyo Co., Ltd.) with a peeling layer on a 12μm polyethylene terephthalate film and vacuum aluminum plating as the transfer foil, and the coating amount on the vapor deposition surface of the transfer foil is 5g / m 2 , Use a gravure coater to coat the water-based dry laminating adhesive ("AP355" manufactured by Nisei Chemical Co., Ltd. (concentration: 45%, viscosi...

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Abstract

Provided is a method for producing a polyvinyl alcohol laminated paper, which is free of wrinkles and concave curls, whereby an aluminum vapor-deposited layer obtained by vacuum deposition of aluminum is disposed on the surface of a polyvinyl alcohol film, a water-based adhesive having a concentration of 40 to 60%, a viscosity of 500 to 4,000 mPa.s and a coverage of 3 to 5 g / m2 is applied to the reverse surface of the polyvinyl alcohol film, said polyvinyl alcohol film is laminated to a base paper, and a printed layer is formed by printing on the polyvinyl alcohol laminated paper. Alternatively, the water-based adhesive having a concentration of 40 to 60%, a viscosity of 500 to 4,000 mPa.s and a coverage of 3 to 5 g / m2 is applied to the reverse surface of the polyvinyl alcohol film, said polyvinyl alcohol film is laminated to a base paper, an aluminum deposition layer of a transfer foil obtained by vacuum deposition of aluminum is transferred to the polyvinyl alcohol film, and a printed layer is formed by printing on the polyvinyl alcohol laminated paper.

Description

Technical field [0001] The present invention relates to a method for manufacturing polyvinyl alcohol laminated paper, polyvinyl alcohol laminated paper, and a cosmetic box processed from the paper. In detail, it relates to polyvinyl alcohol laminated paper having an aluminum-plated layer on a polyvinyl alcohol film The manufacturing method of, the polyvinyl alcohol laminated paper without wrinkles and concave curvature, and the recyclable cosmetic box. Background technique [0002] Laminated paper for cosmetic boxes with excellent aesthetics, such as high-end cosmetic boxes and high-end health food boxes, is usually made by vacuum deposition of metal such as aluminum on conventional PET film, PP film, and PVC film to make a film. The paper is laminated to produce laminated paper. However, when these laminated papers are recycled as paper raw materials, the PET film laminated papers produced by the above-mentioned methods have been pointed out as having the following problems. Wh...

Claims

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Application Information

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IPC IPC(8): B32B15/082B32B27/10B32B27/30B65D65/40D21H27/30
CPCB32B27/306B32B27/10B32B2250/02B32B2255/10B32B2255/205B32B2255/26B32B2255/28B32B2307/4023B32B2307/75B32B2439/62D21H27/30
Inventor 川口五十一川口幸一郎
Owner GOJO PAPER MFG CO LTD
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