High-fastness natural dye printed product and preparation method thereof

Abstract

The invention provides a high-fastness natural dye printed product and a preparation method of the high-fastness natural dye printed product. The method comprises the following steps: performing pre-treatment and cationic modification on a fabric; preparing a cation removing printing work liquid, performing cation removing printing on the fabric after the cationic modification, and baking or steaming; and dyeing the fabric after the cation removing printing by using a natural dye so as to obtain the high-fastness natural dye printed product. The preparation method disclosed by the invention can be used for solving the problems that heavy metal in a natural dye printed product is out of standard, the hand feeling is slightly hard, the color fastness is poor, the large-area bottom color is not uniform, and the like.

Description

technical field

[0001] The invention relates to a natural dye resist printing product and a preparation method thereof, belonging to the technical field of textile dyeing and finishing. Background technique

[0002] Natural dyes refer to dyes obtained from plants, animals or mineral resources, without artificial synthesis, with little or no chemical processing. Because of its renewable, sustainable development, environmental protection and other characteristics, coupled with the attractive patterns and complex changes of natural dye printing products, it belongs to a higher-end category of products and is widely loved by people. However, the poor color fastness of natural dye printing products, the light color of printed parts, and the complexity of printing have limited its development. Conventional natural dye printing products are mainly printed by adding heavy metal mordants or adding resins. It causes problems such as excessive heavy metals, hard hand feeling, poor co...