CN1038607C - Post-treatment Technology of Drawn Fabric - Google Patents

Abstract

A post-treatment process for drawn fabrics made of colored Kaihua and embroidered, characterized in that the bleaching agent H ₂ O ₂ with bleaching ability and decontamination surfactants, hydrogen peroxide stabilizers, and medium conditioners are selected. In the aqueous solution system mixed with other fabrics, the fabric is immersed in the reaction solution for rinsing, and the comprehensive purpose of bleaching, decolorization and decontamination is completed in only one process. The invention has a short process flow, saves a lot of energy consumption, material consumption, labor, equipment and factory buildings, has less environmental pollution, and greatly improves product quality compared with the original process.

Description

The aftertreatment technology of drawnwork fabric

The present invention relates to a kind of aftertreatment technology of wiping the drawnwork fabric of flower and embroidered one-tenth through colorant.

Existing drawnwork fabric aftertreatment technology, generally by bleaching, six sections operations such as dechlorination, acidleach, alkali cleaning, soap boiling, starching are formed.

The agent of adopting in bleaching process of floating is that (main component is Ca (CIO) to bleaching powder ₂) solution, utilize the strong oxidizing property of CIO, the fabric pigment oxidation is destroyed reach the purpose of bleaching, but have following three problems, (1) reaction condition (as temperature, concentration, PH etc.) control is improper, easily makes fabric produce serious aberration.(2) because the strong oxidizing property of CIO-, when destroying chromophoric group and making fabric reach bleaching, also can produce secondary chromophoric groups such as quinonyl, ketone group, cause fabric color development and brightness reversion once more.(3) floating agent chlorine and handle that cellulose that the residual chlorine that leaves in the fabric of back can destroy fabric makes it degraded and molten Jie, cause the fabric embrittlement in processing procedure, and the increasing of contamination index's chemical oxygen consumption (COC) (COD) in the waste water.

In order to reduce the brightness reversion degree and the fragility of fabric, fabric must be by dodium thiosulfate (Na after chlorine floats ₂S ₂O ₃) or sodium hydrosulfite (Na ₂S ₂O ₃) handle to remove chlorine residue.It is the dechlorination operation.

The colored pigment of wiping commonly used is ultramarine, and its main component is Na ₇Al ₆Si ₆S ₂O ₄, Na ₈Al ₆Si ₆S ₄O ₄, Na ₆Al ₄Si ₆S ₄O ₂₀Deng, because its chemical stability height, deacidification is outer, its not colour killing with other medicament reaction, in order to eliminate embroidery background color ultramarine seal, must handle through acidleach, because the meeting of the residual acid in fabric corrosion damage fabric after acidleach and the acidleach, except that washing with water, often be aided with caustic wash process.

The oily substance that speckles with on the drawnwork fabric and other dirty foul mainly are to remove by the soap boiling operation.

Thereby there is following problem in existing aftertreatment technology:

(1) unstable product quality, aberration is big, and easy brightness reversion embrittlement.

(2) technique process is many, long flow path, and energy consumption, material consumption are big.

(3) wastewater flow rate is big, and objectionable impurities content height causes environmental pollution in the waste water.

One of the object of the invention is to reduce the drawn work technological process, cuts down the consumption of energy, material consumption, reduces and pollutes, and two of purpose is to improve the quality of products.

Drawnwork fabric aftertreatment technology of the present invention is to spend wipe with ultramarine pigment on embroidered one-tenth, and the fabric after acidleach is handled, or wipe the drawnwork fabric of spending embroidered one-tenth with the specific colorant of making as triphenylmethane derivative, by solid-to-liquid ratio is 1: 20-80 (weight ratio), immersion contains floats agent hydrogen peroxide (30%) 0.05-15g/l, anion surfactant 0.01-10g/l, in the water solution system of hydrogen peroxide stabilizer or complexing agent 0.01-10g/l and medium conditioning agent 0.05-10g/l, be heated to 40-100 ℃ of kiering reaction 3-60 minute, discharging, through washing, starching and whole scald.

It is hydrogen peroxide (30%) that the selected master of the present invention floats agent, and content 0.4-10g/l is best, and it had both had stronger bleaching power, again not the easy damaged fiber and in bleaching process, produce the secondary chromophore because of, the fabric intensity height that floats, the brightness reversion degree is low, and aberration is little.

In order to prevent to contain non-ferrous metal ion and other impurity in the system, make the decomposing hydrogen dioxide solution loss, choose sodium pyrophosphate, sodium stannate, sodium metasilicate, oxine, a kind of or several medicament combinations of sodium ethylene diamine tetracetate etc. add as stabilizing agent or complexing agent, and content is good with 0.05-5g/l.

Anion surfactant plays the decontamination cleaning function, the soap of available solubility, and alkylbenzenesulfonate, dibutyl or diisopropyl benzene sulfonate, alkyl sulfate etc., content is good with 0.1-5g/l.

Also can add builder sodium sulphate in the system, sodium phosphate trimer etc., consumption are 0-30g/l, preferably 0.3-8g/l.Anion surfactant in the system also can directly adopt synthetic detergent.

In order to make fabric brightening, in the kier liquor system, also can add fluorescent whitening agent, described fluorescent whitening agent is talan oxazine derivatives VBA, VBL, consumption are the best 0.05-2% of being of 0.01-4% (heavy to fabric) (heavy to fabric).

Aftertreatment technology provided by the invention has following advantage.

1, technological process is few, adopts ultramarine pigment to wipe and spends embroidered fabric, after acid treatment, can directly be immersed in kiering in the reactant liquor system of the present invention, and leather has gone bleaching, dechlorination, technologies such as alkali cleaning, soap boiling.Adopt specific colorant to wipe the fabric of spending embroidered one-tenth, then the technology with five processes makes into to finish together, because technology is few, shortened the production cycle, reduced labour intensity, a large amount of energy consumptions, material consumption, labour have been saved, equipment and factory building, conserve water consume more than 60%, and power consumption is more than 35%, and medicine consumes more than 20%.Waste water is not treated simultaneously can reach national specified discharge standard.

2, adopted hydrogen peroxide to float agent as main, the easy damaged fabric fibre does not produce the secondary chromophoric group, compares with old technology, has improved the quality of drawnwork, and whiteness improves, and the brightness reversion degree reduces, and aberration reduces.

Embodiment 1

Wipe flower and through the drawnwork fabric of embroidered one-tenth with ultramarine pigment, by in the solution of solid-to-liquid ratio (fabric and reactant liquor weight ratio) 1: 10～60 immersion sulfur acids or oxalic acid 0.5-10g/l more than 5 minutes, treat the blue seal of ultramarine on the fabric go clean after, take out, water cleans or is aided with dilute alkaline soln again and washes to remove the residual acid in the clean fabric.Residual surplus liquid can continue to use after adding water and sulfuric acid or oxalic acid.

Purify fabric behind the blue seal of ultramarine after drying, pressing solid-liquid 1: 20-80 immerses in the reactant liquor of being made up of following medicament: hydrogen peroxide (30%) 0.05-15g/l, neopelex (or lauryl sodium sulfate 0.01-10g/l, sodium phosphate trimer 0.00-30g/l, sodium pyrophosphate 0.01-10g/l, soda ash 0.05-10g/l, fluorescent whitening agent VBL or VBA0.01-4% (fabric is heavy relatively).Reacted 3-60 minute down at 40-100 ℃.Should constantly turn fabric during reaction, so that reaction evenly.Take out, washed several times with water is with the residual spice in the Ex-all fabric.Reaction residue is measured by analysis, and add water and each medicament make reach former content value after, can continue to use.

The fabric of bleaching after the scrubbing after drying with centrifuge, immerses starching in the slurries of being made up of starch and white glues (polyvinyl acetate emulsion), again through dehydration, drying and smooth after can obtain qualified drawn work finished product.Embodiment 2

Containing hydrogen peroxide (30%) 0.4g/l, anionic surfactant sodium dodecylbenzene sulfonate, or lauryl sodium sulfate (or both mix) 0.5g/l, builder sodium sulphate 1.5g/l, the stabilizing agent sodium pyrophosphate, 0.1g/l, in the reactant liquor that medium conditioning agent sodium carbonate 0.5g/l and fluorescent whitening agent VBL or VBA0.3% (heavy with respect to fabric) are formed, immerse the drawnwork fabric (dirty clean degree belongs to slightly) of wiping flower and embroidered one-tenth with the specific colorant of making as triphenylmethane derivative by solid-to-liquid ratio 1: 40, at 70 ℃ and constantly turn under the fabric reaction 10 minutes, discharging, dry with 3-4 back of clear water washing, immerse starching in the slurries of forming by starch and white glues (polyvinyl acetate emulsion) again, drying, get qualified faggoting after smooth.

Reaction residue measure by analysis with add water and relevant medicament and reach former content value after, can continue on for post processing.Embodiment 3

Identical with embodiment 1 method.Remove blue seal of ultramarine and the drawnwork fabric after cleaning by acidleach, can be by the prescription of example 5-19, reaction condition and method of operating are carried out post processing.Embodiment 4

By the drawnwork of colo(u)r streak or the embroidered one-tenth of painting cloth, to wipe colored pigment and belong to ultramarine, its post processing can handle by example example 1 method.Wipe colored pigment and belong to specific colorant, can carry out post processing by embodiment 2 methods.The faggoting of colo(u)r streak painting cloth should be chosen several embodiment and make lab scale earlier before post processing, at definite colo(u)r streak, the COLOR FASTNESS of painting cloth height, do not cause the fading of colo(u)r streak painting cloth after, again by the production that has high input of suitable embodiment method.Print in the post processing reactant liquor prescription of drawnwork of embroidered one-tenth at the colo(u)r streak look, can not add fluorescent whitening agent.

Of the present invention with reference to embodiment 1-4

The technical recipe of embodiment 5-19, reaction condition, see the following form: result's clean degree of example (weight) degree when implementing the dirty reactant liquor of fabric and forming the reaction of solid-to-liquid ratio reaction temperature (℃) between H in (branch) 5 ₂O ₂(30%) 2g/l 1: 50 90 20 is qualified

Neopelex

(or dodecyl

Sodium sulphate) 1g/l

Sodium phosphate trimer 3g/l

Na ₄P ₂O ₇?0.5g/l

Na ₂CO ₃?2g/l

Glimmering name brightening agent (relatively

Fabric is heavy) 0.5%6 light H ₂O ₂(30%) 0.4g/l 1: 40 70 10 is qualified

Neopelex

(or dodecyl

Result's clean degree of example (weight) degree when sodium sulphate) 0.5g/l implements the dirty reactant liquor of fabric and forms the reaction of solid-to-liquid ratio reaction temperature (℃) between (branch)

Na ₂SO ₄ 1.5g/l

Na ₄P ₂O ₇?0.1g/l

Na ₂CO ₃ 0.5g/l

Fluorescent whitening agent (relatively

Fabric is heavy) H in 0.3%7 ₂O ₂(30%) 2g/l 1: 50 90 20 is qualified

Neopelex

(or dodecyl

Sodium sulphate) 1g/l

Na ₂SO ₄?3g/l

Na ₄P ₂O ₇?0.5g/l

NaOH?2g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.5%8 heavy H ₂O ₂(30%) 4g/l 1: 60 100 30 is qualified

Neopelex

(or dodecyl

Sodium sulphate) 2g/l

Result's clean degree of example (weight) degree when sodium phosphate trimer 3g/l implements the dirty reactant liquor of fabric and forms the reaction of solid-to-liquid ratio reaction temperature (℃) between (branch)

Na ₄P ₂O ₇?1g/l

NaOH 3g/l

Fluorescent whitening agent (relatively

Fabric is heavy) H in 0.8%9 ₂O ₂(30%) 2g/l 1: 50 90 20 is qualified

Neopelex

(or dodecyl

Sodium sulphate) 1g/l

Na ₂SO ₄?3g/l

Na ₂SiO ₃?1g/l

NaOH?2g/l

Fluorescent whitening agent (relatively

Fabric is heavy) H in 0.4%10 ₂O ₂(30%) 2g/l 1: 50 90 20 is qualified

Dodecyl

Benzene sulfonic acid sodium salt 0.5g/l

Dodecyl

Sodium sulphate 0.5g/l

Sodium phosphate trimer 1g/l

Na ₂SO ₄Result's clean degree of example (weight) degree when 2g/l implements the dirty reactant liquor of fabric and forms the reaction of solid-to-liquid ratio reaction temperature (℃) between (branch)

Na ₂SiO ₃?0.5g/l

Na ₄P ₂O ₇?0.5g/l

NaOH 1.5g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.4%11 light H ₂O ₂(30%) 0.5g/l 1: 40 70 10 is qualified

Soap 0.5g/l

Na ₄P ₂O ₇?0.1g/l

Na ₂CO ₃?0.5g/l

Fluorescent whitening agent (relatively

Fabric is heavy) H in 0.1%12 ₂O ₂(30%) 2.5g/l 1: 50 90 20 is qualified

Soap 2g/l

Na ₂SiO ₃ 1.5g/l

Na ₄P ₂O ₇ 0.1g/l

NaOH 2g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.5%13 heavy H ₂O ₂Result's clean degree of example (weight) degree when (30%) the dirty reactant liquor of the qualified enforcement fabric of 4g/l 1: 60 100 40 is formed the reaction of solid-to-liquid ratio reaction temperature (℃) between (branch)

Soap 4g/l

Na ₄P ₂O ₇?0.5g/l

Na ₂SiO ₃?1.5g/l

NaOH?3g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.8%14 light H ₂O ₂(30%) 0.5g/l 1: 40 70 15 is qualified

Synthetic detergent 0.5g/l

Na ₄P ₂O ₇?0.1g/l

Na ₂CO ₃?0.5g/l

Fluorescent whitening agent (relatively

Fabric is heavy) H in 0.1%15 ₂O ₂(30%) 2g/l 1: 50 90 25 is qualified

Synthetic detergent 1.5g/l

Na ₄P ₂O ₇?0.1g/l

Na ₂SiO ₃?1g/l

Na ₂OH?2g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.3% degree of result's clean degree of example (weight) when implementing the dirty reactant liquor of fabric and forming the reaction of solid-to-liquid ratio reaction temperature (℃) between (branchs) 16 weigh H ₂O ₂(30%) 3g/l 1: 60 100 40 is qualified

Synthetic detergent 3g/l

Na ₄P ₂O ₇?0.5g/l

Na ₂SiO ₃?0.5g/l

EDTA?0.1g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.5%17 light H ₂O ₂(30%) 0.5g/l 1: 40 70 15 is qualified

Synthetic detergent 0.5g/l

Na ₂SiO ₃?1g/l

NaCO ₃?1g/l

Fluorescent whitening agent (relatively

Fabric is heavy) H in 0.2%18 ₂O ₂(30%) 1.5g/l 1: 50 90 20 is qualified

Synthetic detergent 1.5g/l

EDTA?0.1g/l

Na ₂SiO ₃?1g/l

Na ₂OH?1g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.3%19 heavy H ₂O ₂Result's clean degree of example (weight) degree when (30%) the dirty reactant liquor of the qualified enforcement fabric of 3.5g/l 1: 60 100 30 is formed the reaction of solid-to-liquid ratio reaction temperature (℃) between (branch)

Synthetic detergent 3g/l

Na ₄P ₂O ₇0.5g/l

EDTA 0.1g/l

NaOH 3g/l

Fluorescent whitening agent (relatively

Fabric is heavy) 0.4%

Claims (7)

1. A post-treatment process for drawn fabrics made by wiping flowers and embroidering with pigments, including fabrics made of ultramarine blue pigments and embroidering, after acid leaching, or using specific triphenylmethane derivatives The finished color material is wiped and embroidered into a fabric, which is characterized in that the fabric is immersed in a bleaching agent hydrogen peroxide (30%) 0.05-15g/L according to a solid-liquid ratio of 1:20-80 (weight ratio), anionic surfactant 0.01～10g/L, hydrogen peroxide stabilizer or complexing agent 0.01～10g/L, and medium conditioner 0.05～10g/L aqueous solution system, heated to 40～100℃ for 3～60 minutes, discharging, Washed, starched, ironed. 2. technology according to claim 1, it is characterized in that described anion surfactant is soluble fatty acid salt, alkyl sulfate, alkylbenzene sulfonate, dibutyl or diisopropyl sulfonate A composition of 0.01-10g/L. 3. The process according to claim 1 or 2, characterized in that builder sodium sulfate can also be added to the reaction solution, and the dosage is 0.00-30g/L, preferably 0.3-8g/L. 4. The process according to claim 1 or 2, characterized in that the anionic surfactant can be a synthetic detergent, and the consumption is 0.01～10g/L. 5. technology according to claim 1, it is characterized in that described hydrogen peroxide stabilizer (or complexing agent) is sodium pyrophosphate, sodium silicate, sodium stannate, 8-hydroxyquinoline and sodium edetate One of the components, the dosage is 0.05-5g/L. 6. The process according to claim 1, characterized in that the media conditioner is composed of sodium hydroxide, potassium hydroxide, potassium carbonate, sodium silicate, etc., and the dosage is 0.1-5g/L. 7. technology according to claim 1, it is characterized in that in reaction solution also can add fluorescent whitening agent toluene triazine derivative VBA, consumption is 0.01～4% (to fabric weight), the best is 0.05%. ~2% (weight to fabric).