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

A polyvinyl alcohol and manufacturing method technology, applied in chemical instruments and methods, boxes, coatings, etc., can solve the problems of no hygroscopicity, concave curvature, etc., and achieve the effects of simple recycling, reducing costs, and improving production efficiency

Active Publication Date: 2013-07-10
GOJO PAPER MFG CO LTD
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  • Summary
  • 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 and the basis weight is 279g / m 2 Cast-coated paper ("GLORIA" manufactured by Gojo Paper Co., Ltd.) was used as the base paper, and aluminum was vacuum-coated on the PVA film ("BOVLON" (thickness: 12 μm) manufactured by Nippon Gosei), and then the vacuum-evaporated PVA film On, using a wet laminator, apply as an adhesive with a coating amount of 3g / m 2 The ethylene-vinyl acetate copolymer resin ("DB314" manufactured by Saiden Chemical (concentration: 53%, viscosity: 500mPa·s)), and then the PVA film surface and the coated surface of the cast-coated paper are laminated, and then in order to protect the aluminum-plated surface To improve the vapor-deposited layer and printability, use a gravure coater (gravure coater) to apply a polyester-based primer ("UVprimer" manufactured by DIC) with a thickness of 1 μm to form a primer layer, and then dry to obtain polyethylene. Alcohol laminated paper. At this time, the speed of the laminator was 100 m / min, ...

Embodiment 2

[0057] The use width is 800mm and the basis weight is 310g / m 2 Coated paper ("JET ACE" manufactured by Japan's Daishohe cardboard) was used as the base paper, and a wet laminator was used to vacuum-coat aluminum on the PVA film ("BOVLON" (thickness: 12 μm) manufactured by Nippon Gosei), and on it On the vacuum-aluminized PVA film, use a wet laminator to coat as an adhesive with a coating amount of 4g / m 2 acrylic copolymer resin ("PZ905" manufactured by Saiden Chemical (concentration: 47%, viscosity: 1,250mPa·s)), and then the PVA film surface and the coated surface of the coated Plating and improving printability, the same polyester-based primer ("UV primer" manufactured by DIC) as in Example 1 was applied to a thickness of 1 μm using a gravure coater to form a primer layer, and then dried to obtain polyethylene Alcohol laminated paper. At this time, the speed of the laminator was 100 m / min, and the drying temperature was 90°C.

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

Embodiment 3

[0061] The use width is 800mm and the basis weight is 315g / m 2 Cast-coated paper ("GLORIA" manufactured by Gojo Paper Co., Ltd.) was used as the backing paper, and a PVA film ("BOVLON" (thickness: 14 μm) manufactured by Nippon Gosei) was coated on a PVA film ("BOVLON" (thickness: 14 μm)) using a wet laminator. The amount is 5g / m 2 ethylene-vinyl acetate copolymer resin ("SP2850" manufactured by Konishi (concentration: 51%, viscosity: 3,000mPa·s)), the PVA film surface and the coated surface of the cast-coated paper were bonded together, dried and rolled into a roll , thus forming a laminated paper of PVA film and coated paper. A 12 μm polyethylene terephthalate film was provided with a peeling layer and then vacuum-coated with aluminum ("NAFTAP" manufactured by Nakai Industry Co., Ltd.) was used as the transfer foil, and the coating amount on the vapor-deposited surface of the transfer foil was set to 5g / m 2 , use a gravure coater to apply a water-based dry lamination adhes...

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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 producing polyvinyl alcohol laminated paper, polyvinyl alcohol laminated paper, and a cosmetic case processed from the paper, in particular, to a polyvinyl alcohol laminated paper in which an aluminum-plated layer is provided on a polyvinyl alcohol film Advanced manufacturing methods, polyvinyl alcohol laminated paper that does not produce wrinkles and concaves, and recyclable cosmetic boxes. Background technique [0002] Laminated paper for cosmetic cases, such as high-end cosmetic cases and high-end health food cases, is usually produced by vacuum-depositing metal such as aluminum on conventional PET film, PP film, and PVC film, and then bonding it with an adhesive. Laminated paper is made by bonding paper together. However, when these laminated papers are recycled as paper raw materials, PET film laminated papers produced by the above-mentioned method have been pointed out to have the following problems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/082B32B27/10B32B27/30B65D65/40D21H27/30
CPCD21H27/30B32B2250/02B32B2307/75B32B2255/10B32B2307/4023B32B2255/28B32B2255/26B32B27/10B32B2439/62B32B27/306B32B2255/205
Inventor 川口五十一川口幸一郎
Owner GOJO PAPER MFG CO LTD