Fluorescein dyeing method for modified acrylic staple fiber blended fabric

A dyeing method and technology of modified acrylic fibers, which can be used in dyeing methods, textiles and papermaking, dry cleaning fiber products, etc., can solve the problems of fluorescent yellow dyeing chroma and brightness that do not meet the standard requirements, and are conducive to industrial large-scale production. , Eliminate discoloration, the effect of simple dyeing method

CN109537329AInactive Publication Date: 2019-03-29SHAANXI YUANFENG TEXTILE TECH RES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a fluorescein dyeing method for a modified acrylic staple fiber blended fabric. The method specifically comprises the following steps: desizing, slightly bleaching, bleaching and dyeing a modified acrylic staple fiber fabric, wherein a dyeing solution a and a dyeing solution bare successively adopted fordyeing, fluorescent powder cationic fluorescein 10GFF is used inthe dyeing solution a and active fluorescein FL is used in the dyeing solution b. According to the fluorescein dyeing method for the modified acrylic staple fiber blended fabric, as a bleaching process is used, the phenomenon that the substrate of the fabric before dyeing changes color is eliminated, and meanwhile, the dyeing effect of the dyeing process is better. The fluorescent powder cationic fluorescein 10GFF and the active fluorescein FL are dyeing agents excellent in dyeing property. The prepared fluorescent fabric is superior to a conventional fluorescent fabric in chromaticity and brightness, meets the national standard fully and has a very wide commercial application prospect.
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Description

technical field

[0001] The invention belongs to the technical field of textile printing and dyeing methods, and in particular relates to a fluorescent yellow dyeing method for modified acrylic cotton blended fabrics. Background technique

[0002] Acrylic fiber itself does not have flame retardant properties, while modified acrylic fiber is a kind of flame retardant fiber obtained by introducing a vinyl compound containing halogen or phosphorus elements into the acrylonitrile monomer of acrylic fiber.

[0003] The flame-retardant modified acrylic fiber and cotton are made into blended fabrics, which can be used in high-visibility warning clothing after fluorescent dyeing, which visually shows the existence of the wearer, so that any light during the day and vehicle headlights at night Under lighting conditions and in dangerous situations, it can ensure that the wearer has a certain degree of salience, so that the driver has enough time to stop or take evasive actions, so that...

Examples

Embodiment 1

[0039] Step 1: Desizing the modified acrylic cotton fabric. Among them, the desizing enzyme concentration is 10g / L, the desizing agent is 5g / L, and the emulsifying and refining agent is 2g / L to form a desizing solution. The bath ratio is controlled at 1:10, and the temperature is raised to 100°C. After 90 minutes of heat preservation, hot water washing is obtained Desizing modified acrylic cotton blended fabric;

[0040] Step 2: Light bleaching the desized modified acrylic cotton blended fabric obtained in step 1. Among them, the hydrogen peroxide concentration is 10g / L, the hydrogen peroxide stabilizer is 2.5kg / L, the pH value is adjusted to 11, the temperature is raised to 50°C and kept for 60 minutes, and the light bleached fabric is obtained after washing with hot water;

[0041] Step 3: Place the fabric after light bleaching in a closed overflow machine, add bleaching solution, heat it up to 70°C and keep it warm for 90 minutes, then cool it down to room temperature natu...

Embodiment 2

[0047] Step 1: Desizing the modified acrylic cotton fabric. Among them, the desizing enzyme concentration is 25g / L, the desizing agent is 15g / L, and the emulsifying and refining agent is 10g / L to form a desizing solution. Pulp modified acrylic cotton blended fabric;

[0048] Step 2: Light bleaching the desized modified acrylic cotton blended fabric obtained in step 1. Among them, the concentration of 30% hydrogen peroxide is 20g / L, the hydrogen peroxide stabilizer is 3kg / L, the pH value is adjusted to 8, the temperature is raised to 80°C and kept for 45 minutes, and the light bleached fabric is obtained after washing with hot water;

[0049] Step 3: Put the fabric after light bleaching in a closed overflow machine, add bleaching solution, heat it up to 80°C and keep it warm for 60 minutes, then cool it down to room temperature naturally, wash it with overflow water, and then use a dechlorination agent to keep it warm at 95°C for 10 minutes Dechlorination; after dechlorinatio...

Embodiment 3

[0055] Step 1: Desizing the modified acrylic cotton fabric. Among them, the desizing enzyme concentration is 40g / L, the desizing agent is 20g / L, and the emulsifying and refining agent is 20g / L to form a desizing solution. The bath ratio is controlled to be 1:1, and the temperature is raised to 70°C. Desizing modified acrylic cotton blended fabric;

[0056] Step 2: Light bleaching the desized modified acrylic cotton blended fabric obtained in step 1. Among them, the concentration of 30% hydrogen peroxide is 30g / L, the hydrogen peroxide stabilizer is 4kg / L, the pH value is adjusted to 9, the temperature is raised to 90°C and kept for 30 minutes, and the light bleached fabric is obtained after washing with hot water;

[0057] Step 3: Place the fabric after light bleaching in a closed overflow machine, add bleaching solution, heat it up to 80°C and keep it warm for 60 minutes, then cool it down to room temperature naturally, wash it with overflow water, and then use a dechlorinat...