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Production method of degradable straw pulp molded tableware

A production method and technology of tableware, applied to drinking vessels, plates, clothing, etc., can solve problems such as environmental pollution, and achieve the effects of reducing production costs, improving safety, and improving production efficiency

Active Publication Date: 2010-10-27
浙江金晟环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, a large amount of black liquor wastewater produced by non-wood fiber pulping has caused very serious pollution to the environment on which human beings depend for survival.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A production method of degradable straw pulp moulded tableware comprises the following steps:

[0030] 1) pulping process: wheat straw is used as raw material, after screening, cutting roots, pulverizing, adding water to dilute at a weight ratio of 1:30, dissolving, adding 5Wt% H 2 O 2 As a strong oxidant, and pressurized 0.5MPa, the plant fiber pulp was obtained;

[0031] 2) pulping process: dilute the plant fiber pulp with water to a weight ratio of raw material and water of 1:200, disperse it, and then add 5Wt% food-grade water repellent acrylate and 8Wt‰ food-grade oil repellent in turn. Fluoropolymer, stirred for 15 minutes, the slurry was sent to the automatic dosing device of the molding machine by the pumping system, quantitatively 100g, and stirred for 25 minutes to obtain the production slurry; the food-grade oil repellent fluoropolymer Acid chromium complex, fluorocarbon acrylate resin, fluorocarbon sulfonamidoethyl acrylate mixed;

[0032] 3) Forming proc...

Embodiment 2

[0036] A production method of degradable straw pulp moulded tableware comprises the following steps:

[0037] 1) pulping process: straw is used as raw material, after screening, cutting roots, pulverizing, adding water to dilute at a weight ratio of 1:60, dissolving, adding 5Wt% H 2 O 2 As a strong oxidant, and pressurized 0.5MPa, the plant fiber pulp was obtained;

[0038] 2) pulping process: dilute the vegetable fiber pulp with water to a weight ratio of raw material to water of 1:160, disperse it, and then add 6Wt% food-grade water repellent acrylate and 7.5Wt‰ food-grade oil-proofing agent in turn. The fluoropolymer is stirred for 10 minutes, the slurry is sent to the automatic metering machine of the molding machine by the pumping system, the quantitative amount is 40g, and then stirred for 25 minutes to obtain the production slurry; the food-grade oil repellent fluoropolymer is made of perfluoropolymer. Chromium complex of carboxylic acid, fluorocarbon acrylate resin, ...

Embodiment 3

[0043] A production method of degradable straw pulp moulded tableware comprises the following steps:

[0044] 1) pulping process: wheat grass and bagasse are used as raw materials, and after screening, root cutting, pulverization, dilution with water at a weight ratio of 1:50, dissolving, adding 5Wt% H 2 O 2 As a strong oxidant, and pressurized 0.45MPa to obtain plant fiber pulp;

[0045] 2) pulping process: dilute the plant fiber pulp with water to a weight ratio of raw material to water of 1:150, disperse it, and then add 5Wt% food-grade water repellant acrylate and 7Wt‰ food-grade oil repellent in turn. Fluoropolymer, stirred for 10 minutes, the slurry was sent to the automatic dosing device of the molding machine by the pumping system, quantitatively 50g, and then stirred for 25 minutes to obtain the production slurry; the food-grade oil repellent fluoropolymer, made of all Chromium complex of fluorocarboxylic acid, fluorocarbon acrylate resin, fluorocarbon sulfonamidoet...

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Abstract

The invention discloses a production method of degradable straw pulp molded tableware, and the production method comprises the following steps: 1) the pulping process step: taking bagasse and wheat straw or rice straw as raw materials, screening, cutting roots, crushing, diluting, adding a strong oxidant and preparing plant fiber pulp under the pressurization condition; 2) the pulp mixing process step: adding water in the plant fiber pulp for dilution till the weight ratio of raw material to water is 1: 150-200, sequentially adding a food-grade water-proofing agent and a food-grade oil-proofing agent, stirring and obtaining pulp liquid for production; 3) the molding process step: spirally injecting the pulp into a mold of a molding machine along the inner wall, uniformly stirring the pulp by relying on the recoil force formed by fluid, carrying out vacuum removal of part of the water, and completing the production of a wet green; and 4) the product sizing: transferring the wet green into the mold of the molding machine and preparing a finished product under high temperature and high pressure. The production method is pollution-free and can reduce the production energy consumption, reduce the failure rate of the product and significantly improve the product quality.

Description

technical field [0001] The invention relates to a production method of degradable straw pulp moulded tableware. Background technique [0002] "White pollution" refers to the serious pollution to the environment caused by the use of non-degradable foam plastic products, plastic products and plastic films that are not degradable for hundreds or even hundreds of years in the natural environment. And polystyrene (PS) foam is one of the main culprits of "white pollution", which has two main hazards. One is the waste plastic packaging scattered in cities, tourist areas and other places, destroying the city appearance and landscape, causing "visual pollution"; level of ecological and environmental problems. [0003] The cost problem restricts the development of the disposable degradable tableware industry. Taking disposable lunch boxes as an example, they are not only environmentally friendly, but also oil-proof, waterproof, and heat-proof, but they also have a fatal weakness, t...

Claims

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Application Information

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IPC IPC(8): A45C11/20A47G19/03A47G19/22
Inventor 张平
Owner 浙江金晟环保股份有限公司
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