Material for producing disposable tableware or industrial goods tray and production method thereof

A tableware and disposable technology, which is applied in the direction of textiles and papermaking, fiber raw material processing, pulp raw material addition process, etc., can solve the problems of low utilization rate of straw, waste of resources, environmental pollution, etc., and achieve low production cost and good crispness , low cost effect

Inactive Publication Date: 2010-01-13
山东蓝沃环保餐具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In hilly and mountainous areas, due to the limitation of objective conditions, the utilization rate of straw is lower
These remaining straws are discarded or directly burned in the field, which not only causes a huge waste of re...

Method used

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  • Material for producing disposable tableware or industrial goods tray and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] 1. Preparation of straw mechanical pulp: use the "Environmental Protection Comprehensive Utilization System of Straw" disclosed by the authorized announcement number CN 2688744Y (utility model name: environmental protection comprehensive utilization system of straw) to grind and disintegrate wheat straw into slurry; the straw mechanical pulp of the present invention A conventional beater can also be used to grind the straw into a slurry;

[0029] 2. Chemical wood pulp or straw pulp (also called "paper pulp"): chemical wood pulp or straw pulp of the present invention can be kraft wood pulp (kraft wood pulp is to adopt the mixed solution of sodium hydroxide and sodium sulfide as cooking agent) or sub Kraft wood pulp (using a mixture of sulfurous acid and acid sulfite as a cooking agent); specifically, the performance indicators of the kraft wood pulp can refer to Table 1. Kraft wood pulp or sulfite wood pulp used in the present invention can be purchased through commercia...

Embodiment 1

[0033] The preparation of embodiment 1 tableware

[0034] 1. Take 6Kg straw mechanical pulp, 2.5Kg chemical wood pulp (sulphate wood pulp), 0.4Kg oxide lake, 0.2Kg butyl acrylate, 0.1Kg ethyl acrylate and 0.05Kg polyvinyl fluoride and add them to the volume of 1000L Inside, add 500Kg of water again, at room temperature, stir at high speed (800-1500 rpm) for 30 minutes to make a uniform, flocculent slurry;

[0035] 2. Get 2Kg of the slurry prepared in the above steps and add it to the food tray mould, remove the obvious excess water in the slurry by the leaking method, so that the solid components in the slurry are evenly attached to the inner wall of the mold, and then the attached The mold with slurry is put into the outer mold of 180 ℃ and pressed for 20 seconds to make a food tray with a wall thickness of 2mm and a diameter of 160mm, and the tray weighs about 36g. (During the compression molding process, a small amount of water in the slurry is a natural foaming agent).

Embodiment 2

[0036] The preparation of embodiment 2 tableware

[0037] 1. Take 8Kg straw mechanical pulp, 4.0Kg chemical wood pulp (sulphate wood pulp), 0.6Kg cross-linked starch, 0.2Kg butyl acrylate, 0.3Kg propyl acrylate and 0.1Kg polyvinyl difluoride to a volume of 1000L Inside, add 650Kg water again, under normal temperature, high-speed (800-1500 turn / minute) stir 30min, make uniform, flocculated slurry;

[0038] 2. Get 2Kg of the slurry prepared in the above steps and add it to the food tray mould, remove the obvious excess water in the slurry by the leaking method, so that the solid components in the slurry are evenly attached to the inner wall of the mold, and then the attached The mold with slurry is put into the outer mold of 180 ℃ and pressed for 30 seconds to make a food tray with a wall thickness of 2mm and a diameter of 160mm, and the tray weighs about 38g. (During the compression molding process, a small amount of water in the slurry is a natural foaming agent).

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Abstract

The invention discloses a material for producing disposable tableware or industrial goods trays and a production method thereof. The material comprises the following components in parts by weight: 60-80 parts of mechanical straw pulp, 20-40 parts of chemical wood pulp or straw pulp, 2-6 parts of modified starch, 1-5 parts of waterproof agent and 0.1-1 part of oil-proofing agent. The production method comprises the following steps: uniformly mixing the components and adding water into the mixture for stirring into uniform pulp to obtain the material; adding the material to a mold and draining excess water for producing prefabricated products; putting the prefabricated products and the mold to an external mold which is heated to 170-180 DGE C by steam in advance, and closing the two molds for pressing the prefabricated products into various shapes of disposable tableware or industrial goods trays. The material mainly contains the mechanical straw pulp and has the advantages of little chemical substance contamination and low production cost. The disposable tableware or industrial goods trays produced by the material have the advantages of sanitation, low cost, favorable crispness and the like.

Description

technical field [0001] The present invention relates to a material used to prepare tableware or industrial product foils, in particular to a material for preparing disposable tableware or industrial product foils from mechanical pulp obtained by physical methods mainly using crop straw as raw material and its preparation The method, and the invention also relates to the application of the material in the preparation of disposable tableware or industrial product foil, which belongs to the field of preparation of tableware or industrial product foil. Background technique [0002] At present, most of the disposable tableware and industrial product foil packaging products are made of plastic products. The plastic raw materials come from petroleum. Petroleum is a non-renewable resource, and its storage capacity is very poor and irreplaceable. In recent years, due to the sharp increase in oil prices, the prices of plastic products have also continued to rise. Since tableware and ...

Claims

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Application Information

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IPC IPC(8): D21H11/12D21H17/28D21H21/16D21H21/14D21H17/67D21H17/14D21H17/35D21H17/66D21H17/68D21H23/04D21J3/00
Inventor 苏河山王锡臣谢志琪苏沁阳
Owner 山东蓝沃环保餐具有限公司
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