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A kind of production equipment and process of plastic-free tableware wrapping paper

A technology of production equipment and production process, applied in the field of production equipment and process of plastic-free tableware wrapping paper, can solve the problems of difficult disposal of plastic waste, waste of resources, and refractory plastic degradation, achieve a wide range of PH values, and optimize products. Structure, the effect of high failure rate

Active Publication Date: 2022-03-08
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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  • A kind of production equipment and process of plastic-free tableware wrapping paper
  • A kind of production equipment and process of plastic-free tableware wrapping paper
  • A kind of production equipment and process of plastic-free tableware wrapping 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 a production equipment and process of plastic-free tableware wrapping paper, which belongs to the technical field of papermaking, including the use of coniferous wood pulp, broad-leaved wood pulp, and bleached bamboo pulp through mixing and beating, pulp preparation and auxiliary materials, wet paper sheet making, Pre-drying, coating and sizing (PVA), post-drying and other process steps. The invention manufactures qualified plastic-free tableware wrapping paper by studying the selection of slurry, the proportion of slurry, the beating process, the functional chemical additives added in the slurry, etc., and adopts the transfer surface sizing treatment of the inner film of the machine. The non-plastic tableware wrapping paper formed at one time of the present invention has the advantages of low comprehensive cost, strong competitiveness, environmental protection and easy recycling, and the trial-produced product is highly praised by users when it is put on the market, and its economic, environmental protection and social benefits are very significant.

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 Patents(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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