PACKAGING PAPER AND PACKAGING MATERIAL

Title:

PACKAGING PAPER AND PACKAGING MATERIAL

Document Type and Number:

Japanese Patent JP2023097230

Kind Code:

A

Abstract:

To provide packaging paper which is environment-friendly and has good heat seal strength.SOLUTION: Packaging paper has a paper base material containing pulp as a main component, and a heat seal layer stacked on one surface or both surfaces of the paper base material, wherein the main component of the heat seal layer is a polylactic acid, a coating amount of the heat seal layer is 5.0 g/m2 or more and 10.0 g/m2 or less, Young's modulus measured according to JIS-K7127(1999) of the heat seal layer is 0.30 N/mm2 or more and 240.0 N/mm2 or less, and the heat seal layer does not contain a water-soluble polymer. Bekk smoothness on the surface of the stacked surface of the heat seal layer on the paper base material is preferably 5 seconds or more and 80 seconds or less. Moisture vapor permeability is preferably 2,500 g/m2 24 hr or more and 5,000 g/m2 24hr or less. Peeling strength at 130°C of the heat seal layer is preferably 1.50 N/15 mm or more.SELECTED DRAWING: None

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Inventors:

TANAKA MOTOHARU
NAKAJIMA HAJIME

Application Number:

JP2021213486A

Publication Date:

July 07, 2023

Filing Date:

December 27, 2021

Export Citation:

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Assignee:

DAIO SEISHI KK

International Classes:

B32B27/10; B32B27/36; B65D65/40

Attorney, Agent or Firm:

Yoshinori Ikeda
Kazunori Amano
Katsumasa Fujimoto
Koji Ishida
Masako Matsuura

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