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Production equipment and technology of plastic-free tableware packaging paper

A technology for production equipment and packaging paper, applied in the field of papermaking, can solve the problems of difficult disposal of plastic waste, waste of resources, and refractory plastic degradation, and achieve the effects of wide application range of PH value, optimized product structure, and high failure rate.

Active Publication Date: 2020-09-15
湖南得凯纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic-free tableware wrapping paper is a kind of food-grade packaging paper. For a long time, disposable chopsticks, spoons, straws, toothpicks, and tableware packaging have used a large number of plastic OPP and paper-plastic composite products. Difficult to dispose of, plastic packaging is widely used for tableware, which is easy to cause waste of resources and environmental pollution. Disposable plastic tableware and its discarded packaging are currently one of the main sources of "white pollution"

Method used

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  • Production equipment and technology of plastic-free tableware packaging paper
  • Production equipment and technology of plastic-free tableware packaging paper
  • Production equipment and technology of plastic-free tableware packaging paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: 40 grams of plastic-free tableware wrapping paper

[0053] Mix softwood pulp and hardwood pulp at a ratio of 40%:60% (the beating degree is controlled at 54-55°SR), add 10-12Kg / ton paper AKD sizing agent, add 8- 10Kg / ton cationic starch in pulp, add 0.3-0.4Kg / ton paper retention aid, add wet strength agent 8-10Kg / ton paper, add light calcium 120-150Kg / ton paper, prepare cost-white diluted pulp and go online , through the dehydration of the wire part to ensure uniform fiber dispersion, orderly and uniform distribution of vertical and horizontal fibers, wet paper sheets enter the press section after compound pressing; paper sheets dried to 95% before entering the sizing section, using film transfer Surface sizing treatment for paper (the main component of the front sizing material is PVA, and the reverse side is PVA+water repellent); the total amount of PVA sizing on the front side is controlled at 20-30Kg / ton of paper, and the amount of sizing on the back side...

Embodiment 2

[0054] Example 2: 52 grams of plastic-free tableware wrapping paper

[0055] Mix softwood pulp, hardwood pulp, and bleached bamboo pulp at a ratio of 30%: 62%: 8% (the degree of beating is controlled at 50-51°SR), and add 14-15Kg / ton of paper AKD Sizing agent, adding 8-10Kg / ton cationic starch in pulp, adding 0.2-0.3Kg / ton paper retention aid, adding wet strength agent 8-10Kg / ton paper, adding light calcium 150-180Kg / ton paper, the preparation cost The white diluted pulp is netted, dehydrated through the wire section to ensure uniform fiber dispersion, orderly and uniform distribution of vertical and horizontal fibers, wet paper sheets enter the press section after compound pressing; paper sheets that are dried to a dryness of 95% enter the In the sizing department, the surface sizing treatment of paper is carried out by film transfer method (the main component of the front sizing material is PVA, and the reverse side is PVA+water-resistant agent); the total amount of PVA sizi...

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Abstract

The invention discloses production equipment and technology of plastic-free tableware packaging paper, and belong to the technical field of papermaking. The technology comprises the following processsteps: mixing and pulping softwood pulp, hardwood pulp and bleached bamboo pulp, blending pulp, adding auxiliary materials, making wet paper sheets, pre-drying, coating and sizing (PVA), post-drying and the like. The qualified plastic-free tableware packaging paper is manufactured by researching pulp selection, pulp proportioning, a pulping process, functional chemical additives added into pulp and the like and adopting in-machine film transfer surface sizing treatment. The one-time formed plastic-free tableware packaging paper has the advantages of being low in comprehensive cost, high in competitiveness, environmentally friendly, easy to recycle and the like, trial-produced products are put into the market to be highly evaluated by users, and economic, environmental and social benefits are quite remarkable.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a production equipment and process for plastic-free tableware wrapping paper. Background technique [0002] Plastic-free tableware wrapping paper is a kind of food-grade packaging paper. For a long time, disposable chopsticks, spoons, straws, toothpicks, and tableware packaging have used a large number of plastic OPP and paper-plastic composite products. Difficult to dispose of, plastic packaging is widely used for tableware, which is easy to cause waste of resources and environmental pollution. Disposable plastic tableware and its discarded packaging are currently one of the main sources of "white pollution". The invention or development of plastic-free tableware wrapping paper is the general trend. It is mainly used to make disposable chopsticks, spoons, straws, toothpicks, and cutlery bags, etc. as substitutes for OPP and paper-plastic composite products, and to develop bi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/12D21H11/00D21H17/67D21H17/17D21H17/29D21H17/55D21H21/20D21H21/10D21H19/84D21H19/60D21H21/16D21H25/06D21F11/00D21F5/16D21F5/18D21G1/00D21D1/18D21D1/02
CPCD21H11/12D21H11/00D21H17/675D21H17/17D21H17/29D21H17/55D21H21/20D21H21/10D21H19/84D21H19/60D21H21/16D21H25/06D21F11/00D21F5/16D21F5/18D21G1/00D21D1/18D21D1/02
Inventor 朱忠凯
Owner 湖南得凯纸业有限公司
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