Manufacturing method for degradable sponge product

The technology of a sponge product and a production method is applied in the field of preparation of degradable sponge products, and can solve the problems of complex production process, high cost of raw materials, and inability to degrade and regenerate.

Inactive Publication Date: 2015-09-23
NINGBO NECO SPONGE TECHONOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main sponge products on the market are synthetic resin sponges made of polyurethane or similar polymer materials through foaming. It has low cost, wide range of uses, and good water absorption effect. Those sponge mops are used as a common household cleaning appliance; however, the sponge products made of polymer materials have certain environmental pollution and cannot be degraded and regenerated; and after long-term use, they are easy to deteriorate, Harden, reduce service life
[0003] With the improvement of people's living standards, people are inc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for producing degradable sponge products, which uses the mixed pulp of wood pulp and bamboo pulp as the main raw material, and undergoes the processes of soaking, pressing, aging, yellowing, viscose, mixing, foaming and washing , made of wood cellulose biodegradable sponge products, wherein:

[0038] a) In the soaking process, add sodium hydroxide and mixed pulp into the soaking tank and mix together, wherein the weight ratio of sodium hydroxide and mixed pulp is 2:1; Wood pulp accounted for 60%, bamboo pulp accounted for 40%; the impregnation temperature in the impregnation barrel was 30°C, and under the condition of high-speed rotation, and the impregnation barrel could be carried out in both intermittent and continuous working states;

[0039] b) In the pressing process, the soaked slurry is put into a press, and excess sodium hydroxide solution is squeezed out to obtain a compressed alkali cellulose block; the dryness of the compressed alkali cellulose bloc...

Embodiment 2

[0050] A method for producing degradable sponge products, which uses the mixed pulp of wood pulp and bamboo pulp as the main raw material, and undergoes the processes of soaking, pressing, aging, yellowing, viscose, mixing, foaming and washing , made of wood cellulose biodegradable sponge products, wherein:

[0051] a) In the soaking process, add sodium hydroxide and mixed pulp into the soaking tank and mix together, wherein the weight ratio of sodium hydroxide and mixed pulp is 1.5:1; Wood pulp accounted for 50%, bamboo pulp accounted for 50%; the impregnation temperature in the impregnation barrel was 25°C, and under the condition of high-speed rotation, and the impregnation barrel could be carried out in both intermittent and continuous working states;

[0052] b) In the pressing process, the soaked slurry is put into a press, and excess sodium hydroxide solution is squeezed out to obtain a compressed alkali cellulose block; the dryness of the compressed alkali cellulose bl...

Embodiment 3

[0063] A method for producing degradable sponge products, which uses the mixed pulp of wood pulp and bamboo pulp as the main raw material, and undergoes the processes of soaking, pressing, aging, yellowing, viscose, mixing, foaming and washing , made of wood cellulose biodegradable sponge products, wherein:

[0064] a) In the soaking process, add sodium hydroxide and mixed pulp into the soaking tank and mix together, wherein the weight ratio of sodium hydroxide and mixed pulp is 2.5:1; Wood pulp accounted for 75%, bamboo pulp accounted for 25%; the impregnation temperature in the impregnation tank was 35°C, and under the condition of high-speed rotation, and the impregnation tank could be carried out in both intermittent and continuous working states;

[0065] b) In the pressing process, the soaked slurry is put into a press, and excess sodium hydroxide solution is squeezed out to obtain a compressed alkali cellulose block; the dryness of the compressed alkali cellulose block ...

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PUM

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Abstract

A manufacturing method for a degradable sponge product comprises the following steps: soaking, squeezing, yellowing, sticking, mixing, carrying out foam molding, washing, and preparing the degradable sponge product prepared from wood cellulose, wherein a), in the soaking process, two raw materials of sodium hydroxide and mixed pulp are mixed together in a dip vat; b) in the squeezing process, the soaked size is compressed to obtain an alkali cellulose block; c) in the yellowing process, carbon disulfide gas is introduced in the alkali cellulose block for yellowing to obtain xanthate; d) in the sticking process, xanthate, bamboo pulp, wood pulp and water are added in a kneading machine to be mixed to prepare an adhesive material; e) in the mixing process, the adhesive material, a sodium sulfate crystal and a toner ribbon are mixed to prepare a sponge mixture capable of being heated and foamed; f) in the foaming process, the sponge mixture is electrified, heated and coagulated to manufacture a sponge block.

Description

technical field [0001] The invention relates to a production method of a degradable sponge product made of wood pulp and bamboo pulp as mixed raw materials, and belongs to the technical field of preparation of degradable sponge products. Background technique [0002] Sponge is a general term for a porous material foam. According to the different raw materials used, various sponge products with different properties can be prepared. It has good water absorption and can be used for cleaning items. At present, the main sponge products on the market are synthetic resin sponges made of polyurethane or similar polymer materials through foaming. It has low cost, wide range of uses, and good water absorption effect. Those sponge mops are used as a common household cleaning appliance; however, the sponge products made of polymer materials have certain environmental pollution and cannot be degraded and regenerated; and after long-term use, they are easy to deteriorate, become hard and...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L1/02C08K3/30C08B9/00B29C44/00
CPCC08J9/24
Inventor 董成勇
Owner NINGBO NECO SPONGE TECHONOLOGY CO LTD
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