Water-resistant preservative composite paper and preparation method thereof

A technology of composite paper and base paper, which is applied in pulp beating/refining methods, paper, papermaking, etc., can solve the problems of poor water resistance of fresh-keeping paper, loss of fresh-keeping effect, speed up fruits and vegetables, etc., and achieve long-term stability of antibacterial properties Good performance, improved percussion degree, and good fiber interweaving and bonding force

Active Publication Date: 2019-10-15
WELBON SPECIAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing fresh-keeping materials include PE film and fresh-keeping paper coated with preservatives. PE film is used directly for fresh-keeping, which has poor air permeability and has a certain fresh-keeping effect in low-temperature environments. However, when the ambient temperature rises, the fruits and vegetables wrapped in the PE film will It will also speed up the respiration and release a large amount of ethylene and oxygen. These gases will acc

Method used

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  • Water-resistant preservative composite paper and preparation method thereof
  • Water-resistant preservative composite paper and preparation method thereof
  • Water-resistant preservative composite paper and preparation method thereof

Examples

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Example Embodiment

[0031] Example 1

[0032] A water-resistant and fresh-keeping composite paper, comprising a base paper layer and a surface adhesive layer, wherein the base paper layer has a basis weight of 23g / m 2 , The quantitative of the surface rubber layer is 1g / m 2 ,

[0033] The base paper layer is prepared from the following components by weight of the base paper slurry, and then wet papermaking is prepared: main slurry 100, polyethylene oxide 0.2, alkyl ketene dimer 5, polyamide polyamine ring Oxychloropropane resin 15, nano-ZnO0.015, nano-TiO 2 0.016,

[0034] Among them, the main pulp is prepared by mixing bleached softwood kraft pulp, chemical fiber and water pulping. The mass concentration of bleached softwood kraft pulp in the main pulp is 5.2%. Among them, the bleached softwood kraft pulp and chemical The fiber mass ratio is 6:4;

[0035] Among them, the surface glue layer is prepared from the following components by weight of the surface glue liquid, and then prepared by the surface g...

Example Embodiment

[0045] Example 2

[0046] A water-resistant and fresh-keeping composite paper, comprising a base paper layer, a surface rubber layer and a natural antibacterial agent layer coated on the surface of the surface rubber layer, characterized in that the base paper layer has a basis weight of 23 g / m 2 , The quantitative of the surface rubber layer is 1g / m 2 , The quantitative of the natural antibacterial agent layer is 1g / m 2 ,

[0047] Among them, the base paper layer is prepared by wet papermaking of base paper slurry prepared from the following components by weight: total slurry 100, polyethylene oxide 0.22, alkyl ketene dimer 6, polyamide Polyamine epichlorohydrin resin 16, nano-ZnO0.02, nano-TiO 2 0.01,

[0048] The total pulp is a suspension prepared by mixing bleached softwood kraft pulp with chemical fibers and water. The mass concentration of the suspension is 5.4%. The mass ratio of the bleached softwood kraft pulp to chemical fibers is 6:4;

[0049] Among them, the surface glue...

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Abstract

The invention discloses water-resistant preservative composite paper and a preparation method thereof. The water-resistant preservative composite paper comprises a base paper layer, and a surface gluelayer; the quantification of the base paper layer is 23-25g/sq.m., and the quantification of the surface glue layer is 2-3g/sq.m.. The water-resistant preservative composite paper has high air permeability, strong corrosion resistance, high deflection and water resistance; the composite paper has high strength under a wetting state, and has good preservation effect at the same time.

Description

Technical field [0001] The invention relates to the technical field of papermaking, in particular to a water-resistant and fresh-keeping composite paper and a preparation method thereof. Background technique [0002] With the improvement of the quality of life, people have a higher consumption demand for seasonal and fresh fruits and vegetables. my country's fruit planting area and fruit output have always been ranked first in the world, but fruit and vegetable products have high moisture content and are easy to rot. At this stage, my country's fresh fruits and vegetables are improperly harvested, post-harvest commercialization processing technology is backward, storage and transportation conditions are inappropriate, and storage and processing capacity Insufficiency and other reasons, the loss rate of rot caused by fruits reached 30%, vegetables reached 30-40%, while the loss rate of developed countries was less than 7%. Therefore, it is very important to adopt effective preserv...

Claims

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Application Information

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IPC IPC(8): D21H27/10D21H11/04D21H13/08D21H17/67D21H19/12D21H17/02D21H17/68D21H21/36D21F11/00D21D1/30
CPCD21D1/303D21F11/00D21H11/04D21H13/08D21H17/02D21H17/675D21H17/68D21H19/12D21H21/36D21H27/10
Inventor 陈阴杰汤新根邓根青
Owner WELBON SPECIAL MATERIALS CO LTD
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