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Preparation method for two-color oil-proof antibacterial food packaging paper

A food packaging paper and oil-proof technology, which is applied in the field of papermaking, can solve the problems of poor environmental protection and achieve the effects of paper reinforcement, low basis weight, and fiber resource saving

Active Publication Date: 2018-06-08
浙江恒川新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the poor environmental protection of existing oil-proof food packaging paper and improve the safety and aesthetics of oil-proof packaging paper, this invention improves the oil-proof and antibacterial properties of food packaging materials through paper structure design and raw material design

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

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Effect test

preparation example Construction

[0025] The preparation method of a kind of two-color anti-oil antibacterial food wrapping paper of the present invention comprises the following steps:

[0026] Step 1: Mix and pulp the bleached chemical coniferous wood and hardwood pulp boards according to the ratio of 2:8 to 7:3, and then go through the double-disk mill for beating treatment, and finally the pulp enters the pulping pool A; in the pulping pool Add cationic starch and wet strength agent to A, and after mixing evenly, the slurry is pumped to slurry tank A; the beating concentration of the mixed slurry is 3.8-4.5%, and the beating degree of the mixed slurry is 35-50°SR.

[0027] Step 2: Pulping the unbleached bamboo fiber pulp board, then passing through the fiber grading screen, the short fibers directly enter the pulping tank A or pulping tank B, the long fibers are beaten through double disc refiners, and finally the pulp enters the pulping tank Pool B; add cationic starch and wet strength agent to pulp mixin...

Embodiment 1

[0040] Step 1: Bleached chemical coniferous wood and hardwood pulp boards are mixed and pulped according to the ratio of 2:8, and then beaten through double disc mills. The beating concentration of the mixed pulp is 3.8%, and the beating degree of the mixed pulp is 40° Sr. Finally, the slurry enters the pulp mixing tank A; in the pulp mixing tank A, cationic starch is added, and the consumption is 0.1% (to the absolute dry fiber quality), and the wet strength agent consumption is 0.15% (to the absolute dry fiber quality), after mixing, The slurry is pumped to the slurry tank A;

[0041] Step 2: Pulping the unbleached bamboo fiber pulp board, then passing through the fiber grading screen, the short fiber directly enters the pulp mixing tank A, and the short fiber is pumped into the pulp mixing tank A, and the ratio of the short fiber to the bleached chemical pulp is 1: 20; The long fibers are subjected to beating treatment with double disc mills, the beating concentration is 4...

Embodiment 2

[0046] Step 1: Bleached chemical coniferous wood and hardwood pulp boards are mixed and pulped according to the ratio of 3:7, and then beaten through double disc mills. The beating concentration of the mixed pulp is 4.5%, and the beating degree of the mixed pulp is 50° Sr. Finally, the slurry enters the slurry mixing tank A; in the slurry mixing tank A, cationic starch is added, and the consumption is 0.3% (to the absolute dry fiber quality), and the wet strength agent consumption is 0.20% (to the absolute dry fiber quality), after mixing, The slurry is pumped to the slurry tank A;

[0047] Step 2: Pulping the unbleached bamboo fiber pulp, then passing through the fiber grading sieve, the short fibers directly enter the pulp mixing tank B, and the long fibers are subjected to beating treatment with double disc mills, the beating concentration is 3.8%, and the beating degree is 35° SR, the final size enters the pulp mixing tank B; add cationic starch in the pulp mixing tank B,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method for two-color oil-proof antibacterial food packaging paper. Components of a slurry are optimized, a filler is pretreated and modified, a multilayer headboxis adopted to adjust and control the components and ratio of the slurry in each layer, and therefore the two-color oil-proof antibacterial food packaging paper is prepared. The food packaging paper provided by the invention is beautiful, can play a dual antibacterial effect, does not fall hairs or powder, and has the characteristics of health and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a preparation method of a two-color oil-proof and antibacterial food wrapping paper. technical background [0002] The environmental protection and safety of food packaging materials have always been the focus of the government and the public. With the improvement of the country's environmental protection and safety requirements for food packaging materials, paper has gradually replaced plastic packaging in many fields due to its advantages of being recyclable and easy to recycle. The rapid development of the fast-moving food market has driven the development of food packaging and papermaking industries. For food packaging containing oils, it is usually necessary to coat or wax the surface of the paper to improve the waterproof and oil-proof performance of the paper. However, such materials will bring in plastics, waxes and other substances during the recycling p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21F11/00
CPCD21F11/00D21H27/10
Inventor 赵新民伊财富刘敏杨柳青陈宪
Owner 浙江恒川新材料有限公司
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