Method for bleaching handicrafts made by Chinese walnut shell

Abstract

The invention discloses a method for bleaching handicrafts made by Chinese walnut shell, which comprises the following steps: immersing the cleaned Chinese walnut shell in a NaClO solution with concentration of 0.4-0.8%, immersing for 1-3 hours at temperature of 25-60 DEG C; then flushing by clear water until no reagent is residual; completely immersing in a H2O2 solution with concentration of 10-30%, immersing for 6-24 hours at 25-60 DEG C; using clear water for flushing until no reagent is residual; and placing for 2-3 days until no reagent smell is residual. According to the invention, NaClO and H2O2 are used for immersing, deep yellow and dark brown of the Chinese walnut shell are completely removed to become white, by processing the handicrafts with various brilliant colors, the artwork grade of the handicrafts made by Chinese walnut shell is increased, economic value is increased, and the market exploitation potential is great.

Description

technical field [0001] The invention relates to a bleaching method, in particular to a method for bleaching handicrafts made from wild walnut shells, and belongs to the field of handicrafts. Background technique [0002] Wild walnut (Juglans cathayensis Dode), also known as hickory nut, belongs to Juglans walnut, the seed oil content can reach 34%, it is edible, and it can also be used to make soap, lubricating oil, etc. Because people respect walnuts as an auspicious thing and a symbol of family safety and happiness, in recent years, more and more handicrafts are made from wild walnut shells, and the styles are more and more exquisite. The common ones are wild walnut bracelets and wild walnut shells. A series of handicrafts made of wild walnut shells, such as pendants and wild walnut ornaments, are gradually loved by people and are of great value. Wild walnut shells are generally dark yellow, some are dark brown, and are often loved by men, while women prefer white or colo...

AI Technical Summary

Problems solved by technology

Because wild walnut shells are dark and difficult to color, there are few white or colored wild walnut crafts on the market

At present, the processing of wild walnut handicrafts is mainly aimed at its shape. In addition to making wild walnut bracelets, wild walnut pendants, etc., it is spliced ​​to make larger wild walnut ornaments, etc., but the common defect of these products is that they ignore The color is processed, so the potential economic value of wild walnut handicrafts is greatly limited, and the economic value of wild walnut handicrafts still has a lot of room for development.

The main reason for this situation is the lack of bleaching technology for wild walnut shells, because bleaching wild walnut shells is the premise and basis for coloring.

And there is no report about bleaching and coloring processing of wild walnut handicrafts

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