Dyeing method of Chinese cypress base paper

Abstract

The invention relates to a dyeing method of Chinese cypress base paper, belonging to the technical field of tobaccos. The method comprises the following specific steps: an in-pulp dyeing method: preparing any natural plant pigment finished product of roselle calyx pigment, red cabbage pigment, black currant pigment, chrysanthema xanthin and safflower yellow into a water solution of which the concentration is 5%, uniformly stirring, then filtering with a sieve of 200-250 meshes, adding the natural plant pigment of which the mass is 3-5% relative to the oven-dried pulp into the Chinese cypress base paper pulp, and simultaneously adding thickening agent of which the mass is 10-20% relative to the oven-dried pulp into the Chinese cypress base paper pulp for dyeing; and a dip dyeing method: mixing cleaned mulberry (the fruit of a mulberry tree) or gardenia fruit (the fruit of a gardenia tree) and water according to the solid-to-liquid ratio of 1:8, boiling for 2-3 hours, then filtering with a sieve of 200-250 meshes, diluting the filtrate with water up to 5 times of the filtrate, adding arabogalactan which is 1-2% relative to the diluted filtrate, and then dipping the white Chinese cypress base paper for 30 seconds. The invention has the advantages of low cost and high safety of the Chinese cypress base paper.

Description

Technical field: [0001] The invention relates to a method for dyeing tipple base paper, which belongs to the technical field of tobacco. Background technique: [0002] The dyeing of cork base paper is generally to dye the pulp with synthetic pigments (frozen yellow, acid-resistant bright red) in the production process, but with the in-depth research on the safety of synthetic pigments, it is found that many synthetic pigments are harmful to human health and even cause cancer , it has been reported that frozen yellow and acid-resistant scarlet have certain toxicity to the human body. With the enhancement of people's awareness of environmental protection, the development of natural plant dyes is very rapid, and more and more people have entered people's lives. Since the front end of the tipping paper will enter the consumer's mouth, higher security is required. [0003] The present invention uses edible natural plant dyes to dye the base paper of tipow, which greatly improve...

AI Technical Summary

Problems solved by technology

[0002] The dyeing of cork base paper is generally to dye the pulp with synthetic pigments (frozen yellow, acid-resistant bright red) in the production process, but with the in-depth research on the safety of synt