Process for producing enhanced wood fiber sponge

Abstract

The invention relates to a process for producing an enhanced wood fiber sponge, which belongs to the field of sponge production and particularly relates to a process for producing a wood fiber sponge. The process is characterized in that the preparation process of a raw material comprises the following steps: soaking wood pulp with an aqueous alkali, and then depositing the wood pulp to degrease to make the wood pulp become alpha-cellulose; adding carbon bisulfide into the alpha-cellulose to sulfonate the alpha-cellulose into a gel; mixing the gel with the aqueous alkali to form an alpha-cellulose viscose; putting cotton into the aqueous alkali for soaking and degreasing, adding nitramine into the aqueous alkali and mixing the mixture; adding sodium sulfate decahydrate, cotton fiber and color paste into the alpha-cellulose viscose to obtain the raw material; and putting the raw material into a cooking boiler, and adding water to the cooling boiler for cooking so as to prepare the wood fiber sponge. The wood fiber sponge is washed by a weak acid solution, then rinsed by a sodium hypochlorite solution and finally washed by a sodium thiosulfate solution. The cotton fiber is added into the wood fiber sponge, the fiber length of the cotton fiber is longer than that of the wood fiber, and the cotton fiber mixed into the wood fiber can enhance the strength and increase the durability and the service life of a sponge product.

Description

technical field [0001] The invention belongs to the field of sponge production, and in particular relates to a production process of wood fiber sponge. Background technique [0002] With the development of industrial civilization, people's awareness of environmental protection of industrial products has gradually increased, and the requirements for environmental protection have also been further improved. At present, the main materials of sponge products on the market are polyurethane and PVA. In the production process of this kind of products, a large amount of organic solvents are used and the harmful chemical residues in the finished products are also extremely serious. After being discarded, they are not easy to decompose under natural conditions and pollute the environment. Although the traditional wooden sponge is environmentally friendly, the process is complicated. The main disadvantage is that the sponge has low strength and is not durable. Therefore, it has becom...

AI Technical Summary

Problems solved by technology

In the production process of this kind of products, a large amount of organic solvents are used and the harmful chemical residues in the finished products are also extremely serious. After being discarded, they are not easy to decompose under natural conditions and pollute the environment.

Although the traditional wooden sponge is environmentally friendly, the process is complicated. The main disadvantage is that the sponge has low strength and is not durable.