Dyeing and finishing method of fiber fabric containing PLA and PHBV

Abstract

The invention discloses a dyeing and finishing method of a fiber fabric containing PLA and PHBV. The dyeing and finishing method comprises the following steps: sewing blank cloth; desizing; tentering; drying; shaping; dyeing; and carrying out post-treatment; particularly, desizing, namely putting the blank cloth into a penetrating agent solution with the concentration being 3.5g / L-4.5g / L; padding in an enzyme solution with the enzyme concentration being 0.6g / L-1.2g / L; dyeing, namely by utilizing disperse dyes, controlling the temperature by phases; in the first phase, continually raising the temperature at 35-55 DEG C at the speed of 2-2.5 DEG C / min; in the second phase, continually raising the temperature at 55-85 DEG C at the speed of 1-1.5 DEG C / min, and keeping the temperature for 8-15 minutes after the temperature is raised to 85 DEG C; in the third phase, continually raising the temperature at 85-100 DEG C at the speed of 0.5-1 DEG C / min, and keeping the temperature for 8-15 minutes after the temperature is raised to 100 DEG C; and in the fourth phase, cooling the temperature to 50 DEG C from 100 DEG C at the speed of 1-2 DEG C / min so as to finish the whole dyeing process. The dyeing and finishing method has the advantages of rapidness in coloring, uniform dyeing and uneasiness of de-coloring.

Description

technical field [0001] The invention relates to the technical field of cloth dyeing and finishing, in particular to a dyeing and finishing method for fabrics containing PLA and PHBV fibers. Background technique [0002] PLA is polylactic acid, a thermoplastic aliphatic polyester, which is a green plastic with good performance. PHBV is a copolymer of new biopolymer 3-hydroxybutyrate and 3-hydroxyvalerate. It is a biological material produced by using starch as raw material and using fermentation engineering technology. It is produced by bacteria and can be Digested by bacteria, it can be decomposed into carbon dioxide, hydrated biomass, and low energy consumption; therefore, using the above two high-quality materials for textile fabrics has the characteristics of low production cost, environmental friendliness, rapid degradation, good hand feeling, and appropriate strength. The applicant applied for a patent application with application number 201410187667.7 on 2014.05.06, t...

AI Technical Summary

Problems solved by technology

The applicant applied for a patent application with application number 201410187667.7 on 2014.05.06, titled "Production Method of PLA and PHBV Blended Fabric", which provided the specific production method of the fabric; however, after the fabric is produced, it needs to be dyed and finished. And other post-processing steps are also crucial to the performance of the fabric and the realization of the above characteristics, which involves the control of process parameters, the selection of dyes, etc. At present, there are no reports and processes for dyeing and finishing of this special fabric. It is recorded that the dyeing durability, uniformity, and decolorization performance of this kind of fabric dyeing and finishing are worth studying; especially the traditional dyeing temperature is relatively high for the dyeing firmness, all reaching above 100 degrees, but it is applied to this PLA and PHBV blended fabric During dyeing, it is easy to cause uneven dyeing and easy to appear dyed flowers