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Natural dye printed product and preparation method thereof

A natural dye and printing technology, which is applied in the field of textile printing and dyeing, can solve the problems of poor color fastness, excessive heavy metals, and not deep color, etc., and achieve the effect of solving heavy metals exceeding the standard, less material loss, and not easy to stain

Active Publication Date: 2015-03-25
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned method of adding heavy metal mordant or adding resin will cause problems such as excessive heavy metals, hard hand feeling, poor color fastness, and not deep color.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 The pure cotton woven cloth that chlorophyll natural dye prints NIKE letter

[0028] The present embodiment provides a kind of preparation method of the pure cotton woven cloth that chlorophyll natural dye prints NIKE letter, and this method comprises the following steps:

[0029] The pure cotton woven fabric after desizing, scouring and bleaching is washed, dehydrated, dried and rolled to obtain the pretreated pure cotton woven fabric.

[0030] Prepare cationic modified working solution, wherein, based on the total weight of cationic printing modified working solution, the working solution includes 7.5wt% 2,3-epoxypropyltrimethylammonium chloride, 1wt% NaOH, 7wt% seaweed Sodium Acid, and the balance is water. Print the cation-modified working solution on the position where the above-mentioned pure cotton woven fabric needs to be printed by rotary screen printing, and then bake it at 130°C for 150s to obtain a pure cotton woven fabric modified by cationic ...

Embodiment 2

[0033] Embodiment 2 The printed pure cotton sweater of cochineal red natural dye printing Esquel

[0034] The present embodiment provides a kind of preparation method of the printed pure cotton sweater of cochineal red natural dye printing Esquel, and this method comprises the following steps:

[0035] Make knitted sweaters from pure cotton knitted fabrics that have been scoured, bleached and shaped according to requirements;

[0036] Prepare cationic modified working solution, wherein, based on the total weight of cationic printing modified working solution, the working solution includes 5wt% 2,3-epoxypropyltriethylammonium chloride, 1wt% NaOH, 7wt% alginic acid sodium and the balance water. At the position where the above-mentioned pure cotton sweater needs to be printed, print the cationic modified working solution by flat screen printing, and bake at 140°C for 150s to complete the cationic printing modification of the position where the above-mentioned knitted sweater nee...

Embodiment 3

[0039] Embodiment 3 Sorghum red natural dye prints the pure cotton woven cloth of A&F letter

[0040]The present embodiment provides a kind of preparation method of the pure cotton woven cloth of sorghum red natural dye printing A&F letter, and this method comprises the following steps:

[0041] The pure cotton woven fabric after desizing, scouring and bleaching is washed, dehydrated, dried and rolled to obtain the pure cotton woven fabric after pretreatment, drying and rolling;

[0042] Prepare cationic modified working solution, wherein, based on the total weight of cationic printing modified working solution, the working solution includes 7.5wt% 3-chloro-2 hydroxypropyl trimethylammonium chloride, 1.5wt% NaOH, 8wt% Sodium alginate, the balance is water. Print the cation-modified working solution on the position where the above-mentioned pure cotton woven fabric needs to be printed by rotary screen printing, and steam at 102°C for 3 minutes to obtain a pure cotton woven fab...

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Abstract

The invention provides a natural dye printed product and a preparation method thereof. The preparation method comprises the following steps: performing pretreatment on fabrics to obtain pretreated fabrics; performing cation printing modifying on the pretreated fabrics at preset areas by using a cation printing modifying working solution, and cooking or roasting at 100-180 DEG C for 10 seconds to 15 minutes to obtain cation printed modified fabrics; and washing the cation printed modified fabrics with water and acid, immersing in a natural dye aqueous solution, performing water bath at the room temperature to 100 DEG C for 10 minutes to 48 hours, cooking at 100-120 DEG C for 30 seconds to 15 minutes by using steam or roasting at 100-180 DEG C for 10 seconds to 15 minutes, then washing with water, softening and shape setting to obtain the natural dye printed product. The invention further provides the natural dye printed product obtained according to the preparation method. The method for preparing the natural dye printing product disclosed by the invention can solve the problems of over standard heavy metals, hard feel, poor color fastness, light color of the printing part and the like of printing by using conventional natural dyes.

Description

technical field [0001] The invention provides a natural dye printing product and a preparation method thereof, belonging to the technical field of textile printing and dyeing. Background technique [0002] Natural dyes refer to dyes obtained from plants, animals or mineral resources without artificial synthesis and little or no chemical processing. Because it can be regenerated, it meets the requirements of sustainable development and environmental protection, and the printed product pattern obtained by printing with natural dyes is attractive and varied. It belongs to a higher-end product and is widely loved by people. However, the poor color fastness of natural dye printing products, the printing part is light in color, and the printing is complicated and other reasons limit its development. [0003] Conventional natural dye printing products are mainly printed by adding heavy metal mordants or adding resins. The above printing by adding heavy metal mordant or adding res...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P3/60D06P3/04D06P3/14D06M13/463D06M15/13D06M11/38D06M101/06D06M101/10D06M101/12
Inventor 徐伟杰周立明张玉高
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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