A kind of food packaging paper and production method thereof

A technology for food wrapping paper and production method, which is applied in the directions of wrapping paper, wrapping paper, packaging, etc., to achieve the effects of improving water resistance, high cost performance and cost saving

Inactive Publication Date: 2011-12-07
YUEYANG FOREST & PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a food packaging paper with high strength, which meets the hygienic requirements of food packaging and its low pollution, good paper strength, high whiteness, environmental friendliness, and is conducive to the comprehensive utilization of resources on the basis of the previous technology. production method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The poplar wood raw material is prepared, and the pulping process is made of PRC-APMP (P stands for pretreatment before refining, stands for disc refining to promote the chemical action of pulp, APMP stands for alkaline hydrogen peroxide mechanical pulp) pulping process to make whiteness 75-78 %ISO, percussion degree 48-52 SR poplar chemical mechanical pulp, purchased bleached kraft softwood pulp to 36-40 SR, bleached kraft hardwood pulp to 30-34 SR, the above three kinds of pulp are 15% poplar chemical pulp, 25% bleached kraft softwood pulp, and 60% bleached kraft hardwood pulp. After mixing, the pulp is adjusted to a concentration of 3.5%. It is sieved through thick stock, seasoning and starch enhancer are added, and then the pulp is washed and removed. Sand degassing, sizing, fine sieving, online forming dehydration (controlling online concentration 0.8%, online pH value 7.0), pressing, pre-drying, drying after surface sizing, calendering, coiling, and packaging to fo...

specific Embodiment approach 2

[0019] The raw material of poplar wood is prepared, and the PRC-APMP pulping process is used to make poplar chemical mechanical pulp with a brightness of 75-78% ISO and a degree of knocking of 48-52 SR. The purchased bleached kraft softwood pulp is beaten to 36-40 SR. The leaf pulp is beaten to 30-34SR. The above three kinds of pulp are prepared according to the ratio of 10% poplar chemical mechanical pulp, 20% bleached kraft softwood pulp, and 70% bleached kraft hardwood pulp. After mixing, the pulp is adjusted to a concentration of 3.5%. , pass through the thick pulp sieve, add starch enhancer to the seasoning, then punch the pulp, desand and degas, sizing, fine sieving, online forming and dehydration (control the online concentration of 0.8%, and the online pH value is 7.0), pressing, pre-drying, surface sizing After drying, calendering, coiling, and packaging, food packaging paper is formed.

[0020] Surface sizing process: starch surface sizing agent concentration 8%, siz...

specific Embodiment approach 3

[0023] The raw material of poplar wood is prepared, and the PRC-APMP pulping process is used to make poplar chemical mechanical pulp with a brightness of 75-78% ISO and a degree of knocking of 48-52 SR. The purchased bleached kraft softwood pulp is beaten to 36-40 SR. The leaf pulp is beaten to 30-34SR. The above three kinds of pulp are prepared according to the ratio of 5% poplar chemical mechanical pulp, 20% bleached kraft softwood pulp, and 75% bleached kraft hardwood pulp. After mixing, the pulp is adjusted to a concentration of 3.5%. , pass through the thick pulp sieve, add starch enhancer to the seasoning, then punch the pulp, desand and degas, sizing, fine sieving, online forming and dehydration (control the online concentration of 0.8%, and the online pH value is 7.0), pressing, pre-drying, surface sizing After drying, calendering, coiling, and packaging, food packaging paper is formed.

[0024] Surface sizing process: starch surface sizing agent concentration 8%, sizi...

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PUM

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Abstract

The invention discloses a food wrapping paper and a production method thereof. Poplar chemical mechanical pulp, bleached kraft softwood pulp and bleached kraft hardwood pulp are used as fiber raw materials. Sizing, desanding and degassing, sizing, fine sieving, wire dehydration forming, pressing, pre-drying, surface sizing, post-drying, calendering, coiling, and packaging to form food packaging paper. The present invention uses the surface sizing treatment method to process the product, and adds a starch surface sizing agent to the surface sizing to improve water resistance and adds a small amount of sizing agent alkyl ketene dimer to the surface sizing glue, which can Improve the retention rate, save costs, and make products more cost-effective.

Description

technical field [0001] The invention relates to food packaging, in particular to a food packaging paper and a production method thereof. Background technique [0002] For a long time, a large number of plastic products have been used in food packaging. Because plastics are extremely difficult to degrade and plastic waste is difficult to dispose of, a large amount of plastic packaging is used for food, which is easy to cause waste of resources and environmental pollution. Plastic food substitutes are currently one of the main sources of "white pollution" . Therefore, developed countries have introduced regulations to limit the use of plastic packaging. In order to build an "environmentally friendly and resource-saving" society, my country has banned the production, sale, and use of ultra-thin plastic shopping bags since June 1, 2008, and implemented regulations such as the paid use of plastic shopping bags to limit the use of plastic shopping bags. Food packaging paper is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H11/04D21H21/16D21H17/28
Inventor 邵启超陈金山尹超李庆秋刘立新冀振华周训富刘成良张菊先艾广龙
Owner YUEYANG FOREST & PAPER CO LTD
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