Manufacturing method of laminates

JP7877620B2Active Publication Date: 2026-06-23ZACROS CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
ZACROS CORP
Filing Date
2022-03-28
Publication Date
2026-06-23

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Patent Text Reader

Abstract

To provide a method for manufacturing a laminate which can bond a paper base material without curling an end of a resin film including a sealant.SOLUTION: A method for manufacturing a laminate in which a resin film including at least a sealant layer is bonded to a paper base material through an adhesive includes: a coating step of coating the adhesive onto one surface of the resin film; a drying step of drying the resin film to which the adhesive is coated at a temperature of 70°C or lower; and a bonding step of bonding the paper base material onto the one surface of the dried resin film.SELECTED DRAWING: Figure 2
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Claims

1. A method for manufacturing a laminate in which a resin film containing at least a sealant layer is bonded to a paper substrate via an adhesive, A coating step of applying the adhesive to one side of the resin film, A drying step in which the resin film to which the adhesive has been applied is dried at a temperature of 70°C or lower, The process includes a lamination step of bonding the paper substrate to one side of the dried resin film, The ratio of the thickness of the sealant layer to the thickness of the resin film is 0.4 or more and 1.0 or less. A method for manufacturing laminates.

2. In the drying step, the resin film is dried at a speed of 100 m / min or less. A method for manufacturing a laminate according to claim 1.

3. The sealant layer is laminated on the side of the resin film opposite to the one side. A method for manufacturing a laminate according to claim 1 or 2.

4. The sealant layer contains polyethylene, A method for manufacturing a laminate according to any one of claims 1 to 3.

5. The basis weight of the paper substrate is 10 g / m² ２ More than 200g / m ２ The following is: A method for manufacturing a laminate according to any one of claims 1 to 4.