A method for finishing fabrics with microcapsules

A microcapsule finishing and microcapsule technology, which is applied in the fields of plant fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of microcapsule finishing fabrics such as poor washability, and achieve the effect of enriching fabric functions

Active Publication Date: 2021-04-20
SHENZHEN PURCOTTON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of poor washability of existing microcapsule finishing fabrics and provide a method for microcapsule finishing fabrics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation of surface-grafted monochlorotriazine-β-cyclodextrin microcapsules, the wall material segments of the microcapsules have hydroxyl or amino groups, and contain functional components. The melting point is 23°C, and it can be adjusted by phase change; rose essential oil is an aromatic agent.

[0033] A Mugwort Essential Oil + Chitosan - Gum Arabic

[0034] A1, with test solution: take 20 parts of gum arabic, add 80 parts of deionized water, 11 parts of mugwort essential oil, 0.5 part of Tween 80, emulsify and homogenize at high speed for 2 minutes, and get test solution A; take 3 parts of chitosan, add 100 parts of acetic acid aqueous solution (1%, V / V), stirred and dissolved to obtain test solution B.

[0035] A2. Preparation of microcapsules: Add test solution B dropwise to test solution A under stirring conditions, add 200 parts of deionized water to dilute, adjust pH=4.5 with 1M hydrochloric acid or 1M sodium hydroxide, stir at constant temperature of 20°C...

Embodiment 2

[0070] Prepare finishing solution

[0071] The microcapsules A, C, D, E, and F in Example 1 were respectively made into microcapsule content 1wt%, anionic water-based polyurethane adhesive (solid content 20~50%) content 1wt%, fabric softener content 1wt% % and water 97wt% finishing liquid, adjust pH with 1M hydrochloric acid or sodium hydroxide aqueous solution to be 8~10.

[0072] The microcapsule B of embodiment 1 is made into the finishing solution of microcapsule content 5wt%, anionic water-based polyurethane binder (solid content 20~50%) content 5wt%, fabric softener content 1wt% and water 89wt%. 1M hydrochloric acid or sodium hydroxide aqueous solution to adjust the pH to 8~10.

[0073] In other embodiments, other formulations of the finishing solution may be: 3wt% microcapsules, 2wt% binder, 2wt% fabric softener, 93wt% water.

Embodiment 3

[0075] Grafting monochlorotriazine-β-cyclodextrin on fabric surface

[0076] Pure cotton fabric, 145cm*147cm, 29.2tex*36.4tex, 503 threads / 10cm*234 threads / 10cm, wash with neutral detergent and dry for later use.

[0077] Grafting treatment: (1) 10, 30, 50, 80g / L MCT-β-CD aqueous solution A, B, C, D, heated to 60°C, put into pure cotton fabric, liquor ratio is 1:20; (2 ) 2°C / min to 90°C, add NaCl to 10g / L, add 1 / 3 soda ash every 10min to reach 21g / L, keep warm for 1 hour; The drying rate is 80%, first dried at 80°C for 5 minutes, then steamed at 100°C for 8 minutes, and dried in the air.

[0078] A, B, C, and D fabrics treated with MCT-β-CD aqueous solution, the grafting rates are: A 0.5wt%, B 1.7wt%, C 3.1wt%, D 5.0wt%.

[0079] In other embodiments, it is also possible to graft monochlorotriazine-β-cyclodextrin on the surface of the fabric through the following conditions:

[0080] Raise the temperature of 50g / L chlorotriazine-β-cyclodextrin aqueous solution to 80°C, put ...

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Abstract

The invention belongs to the technical field of textile fabric treatment, and discloses a method for finishing fabrics with microcapsules, comprising the following steps: S1, grafting chlorotriazine-β-cyclodextrin on the surface of the microcapsules; S2, grafting microcapsules The capsule and the adhesive are prepared into a finishing solution; S3, grafting chlorotriazine-β-cyclodextrin on the surface of the fabric; S4, finishing the grafted fabric with the finishing solution. The invention introduces the cyclodextrin into the combination system of microcapsules and fabric fibers, which can enhance the binding effect of the adhesive to improve the washability of the fabric, and together with the microcapsules as a carrier of functional components, enriches the function of the finished fabric. The grafting of enough cyclodextrin groups on the microcapsules is beneficial to the reduction of self-agglomeration of the microcapsules; the grafting of less cyclodextrin groups on the surface of the fabric is conducive to the uniform distribution of the grafts, which in turn is beneficial to the uniformity of the microcapsules. distributed.

Description

technical field [0001] The invention belongs to the technical field of textile fabric treatment, and in particular relates to a method for fabric finishing with microcapsules. Background technique [0002] Microcapsules have been used in various functional textiles as a controlled release carrier for components such as fragrances, deodorants, antibacterial agents, anti-mite agents, and phase-change temperature-regulating substances. The release methods of functional components mainly include: slow release, stress release and destructive release, while phase-change temperature-regulating substances do not need to be released. For synthetic fibers and artificial fibers, there are two processes for microcapsule finishing: one is mixing in the spinning stage, and the other is fabric finishing. These two methods can be used in combination. For natural fibers, only fabric finishing can be performed. [0003] The microcapsules used for fabric finishing are generally combined with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M23/12D06M15/03D06M13/02D06M13/00D06M15/15D06M15/564D06M101/06
CPCD06M13/00D06M13/02D06M15/03D06M15/15D06M15/564D06M23/12D06M2101/06D06M2200/20
Inventor 李建全赵勇王磊
Owner SHENZHEN PURCOTTON TECH
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