CN109594370B - High-cleanness ozone old washing process for ready-made clothes - Google Patents
High-cleanness ozone old washing process for ready-made clothes Download PDFInfo
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- CN109594370B CN109594370B CN201811487879.1A CN201811487879A CN109594370B CN 109594370 B CN109594370 B CN 109594370B CN 201811487879 A CN201811487879 A CN 201811487879A CN 109594370 B CN109594370 B CN 109594370B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/15—Locally discharging the dyes
- D06P5/158—Locally discharging the dyes with other compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/16—Multi-step processes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/15—Locally discharging the dyes
- D06P5/151—Locally discharging the dyes with acids or bases
Abstract
The invention discloses a high-cleanness ozone old washing process for ready-made clothes, which comprises two steps of ozone washing and ready-made clothes odor removal rinsing; the washing liquid in the ozone washing step comprises water and ozone, the concentration of the ozone in the washing liquid is 1-3 g/mL, and the temperature of the washing liquid is not higher than 45 ℃; the technological conditions of the ready-made clothes smell removal are as follows: and (3) placing the wet ready-made clothes washed by the ozone water into rinsing liquid at the temperature of 80-100 ℃ for rinsing in a heat preservation mode, wherein the rinsing liquid mainly comprises water. The high-cleanness ozone washing process for the ready-made clothes adopts two steps of ozone washing and high-temperature rinsing to treat the shirt, the washing fading effect of the ready-made clothes is obvious, certain washing marks are reflected in seams, the hand feeling of the ready-made clothes after the ozone washing is soft, and the fabric after the heat preservation rinsing treatment has no ozone smell.
Description
Technical Field
The invention relates to the technical field of ready-made clothes or ready-made clothes production, in particular to a high-cleanness ozone old washing process for ready-made clothes.
Background
The traditional knitted garment old washing finishing technology uses the experience of jeans garments for reference, a layer of coating is uniformly scraped on the surface of the knitted garment or cut pieces, the garment is subjected to sand washing processing in a loose and free state after being made, fibers are puffed and loosened through chemical additives in the processing process, dynamic damping friction is generated through related equipment and the chemical additives, the sanded garment has a unique style of roughness and soft color, fluff on the surface of the garment stands upright, frosty fluff is generated on the surface of the fabric, and the heat retention and hand feeling are improved. The chemical auxiliary agent in the above process is usually alkali, and the coating needs to use an oxidizing agent, ore with increased friction force and the like. The oxidizing agent has the function of carrying out oxidation-reduction reaction with dye in the knitted garment to realize the decolorizing effect.
The traditional oxidants are sodium hypochlorite and hydrogen peroxide, which can cause a large amount of chloride ions to enter a water body and remain in the ready-made clothes, so that the maintenance of the color of the ready-made clothes is not facilitated; in the hydrogen peroxide fading treatment process, the washing time needs to be controlled to be more than 30 minutes, the existence of alkali in the washing liquid is not beneficial to ensuring the stability of the hydrogen peroxide, a hydrogen peroxide stabilizer needs to be additionally added, the ready-made clothes need to be fully neutralized and rinsed after the washing is finished, and the water resource, chemical agents and energy consumption are large. In addition, the ozone-washed garment or garment has an ozone odor.
Therefore, it is necessary to optimize the prior art washout process.
Disclosure of Invention
One of the objectives of the present invention is to overcome the drawbacks of the prior art and to provide a high-cleanness ozone washing process for removing ozone odor from a ready-made garment by adding a high-temperature rinsing step after the ozone washing step.
In order to realize the technical effects, the technical scheme of the invention is as follows: a high-cleanness ozone old washing process for ready-made clothes is characterized by comprising two steps of ozone water washing and ready-made clothes odor removal rinsing;
the washing liquid in the ozone washing step comprises water and ozone, the concentration of the ozone in the washing liquid is 1-3 g/mL, and the temperature of the washing liquid is not higher than 45 ℃;
the technological conditions of the ready-made clothes smell removal are as follows: and (3) placing the wet ready-made clothes washed by the ozone water into rinsing liquid at the temperature of 80-100 ℃ for rinsing in a heat preservation mode, wherein the rinsing liquid mainly comprises water.
Preferably, the rinse solution further contains a reductive ozonolysis accelerator.
The preferable technical scheme is that the ozone decomposition accelerator is at least one selected from sodium thiosulfate, potassium thiosulfate and tertiary butanol.
The preferable technical scheme is that the ozonolysis accelerant is sodium thiosulfate and/or potassium thiosulfate, the rinsing temperature is 85-95 ℃, the rinsing time is 4-10 min, and the concentration of the sodium thiosulfate in the rinsing liquid is 1.5-5 g/L. The ozone contained in the wet garment oxidizes sodium and/or potassium thiosulfate, which reacts with ozone to form the corresponding sulfate. The fiber in the ready-made clothes fabric is especially cotton fiber, and the combination of the dye and the fiber is damaged under the condition of high-temperature rinsing, so that the dye is prevented from being excessively peeled.
The preferable technical scheme is that the ozonolysis accelerant is tert-butyl alcohol, the rinsing liquid also comprises water-soluble chitosan and acrylic monomers, and the pH value of the rinsing liquid is 5-6;
the rinsing liquid comprises the following components in parts by weight: 2-7 parts of water-soluble chitosan, 0.3-1 part of acrylic monomer and 1-3 parts of tert-butyl alcohol, wherein the rinsing temperature of rinsing liquid is 80-85 ℃, the rinsing time is 20-40 min, and the steps of padding, pre-drying and baking are also included after odor removal and rinsing of ready-made clothes.
Ozone is unstable and rapidly decomposed in water to generate hydroxyl radicals, the addition of tert-butyl alcohol is beneficial to reducing the initial concentration of the hydroxyl radicals in a reaction system under an alkaline condition, the hydroxyl radicals initiate acrylic acid grafted chitosan, residual ozone and rinsing steps in finished clothes are fully utilized, one-step post-finishing is carried out on the fabric, the obtained fabric has good antibacterial performance, the production steps of the fabric are reduced, and the product performance is equivalent. Too high a rinsing temperature can lead to decomposition of the oxide of the isopropanol in the system.
The preferable technical scheme is that the rinsing liquid also comprises 0.05-0.2 part of cross-linking agent, and the cross-linking agent is glyoxal and/or glutaraldehyde. The chitosan and the cotton fiber have certain adhesive capacity without a cross-linking agent, and the addition of the cross-linking agent is beneficial to further improving the adsorption performance of the chitosan to the fiber, especially to the polyester fiber. The chitosan grafted with acrylic acid is attached to the surface of the polyester fiber, which is beneficial to improving the hydrophilicity of the polyester fiber.
The preferable technical scheme is that the acrylic monomer is acrylic acid and acrylate monomer.
The preferable technical scheme is that the pre-drying temperature is 80-95 ℃, the pre-drying is carried out until the ready-made clothes are dried, the baking temperature is 120-135 ℃, and the baking time is 20-40 min.
The preferable technical scheme is that the fabric dye of the ready-made clothes is a reducing dye.
The preferable technical scheme is that the fabric fiber of the garment contains cotton fiber and/or polyester fiber.
The invention has the advantages and beneficial effects that:
the high-cleanness ozone washing process for the ready-made clothes adopts two steps of ozone washing and high-temperature rinsing to treat the shirt, the washing fading effect of the ready-made clothes is obvious, certain washing marks are reflected in seams, the hand feeling of the ready-made clothes after the ozone washing is soft, and the fabric after the heat preservation rinsing treatment has no ozone smell.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Examples indigo dyed pure cotton T-shirts and reactive deep blue dye dyed polyester T-shirts based on the same reducing dye.
Example 1
The high-cleanness ozone old washing process of the ready-made clothes in the embodiment 1 comprises two steps of ozone water washing and ready-made clothes smell removal rinsing;
the washing liquid in the ozone washing step comprises water and ozone, the bath ratio of ready-made clothes to the washing liquid is 1:10, water in the washing liquid is room-temperature water, the concentration of the ozone in the washing liquid is 2g/mL, and the washing time is 20 min;
the technological conditions of the ready-made clothes smell removal are as follows: and (3) placing the wet ready-made clothes washed by the ozone water into rinsing liquid at 90-95 ℃ for rinsing for 5min under the condition of heat preservation, wherein the rinsing liquid is water.
Example 2
Example 2 is based on example 1 with the difference that the concentration of ozone in the water wash is 1g/mL, the temperature of the water wash is 45 ℃ and the time of the water wash is 30 min; rinsing temperature is 85-90 ℃, and rinsing time is 10 min.
Example 3
Example 3 differs from example 1 in that the rinse solution contained 1.5g/L sodium thiosulfate.
Example 4
Example 4 differs from example 1 in that the rinse solution contained 5g/L potassium thiosulfate.
Example 5
Example 5 is based on example 1 with the difference that the rinse solution has a composition comprising 2 parts of water-soluble chitosan, 1 part of acrylic monomer methacrylic acid, 1 part of tert-butanol, 100 parts of water, in a bath ratio of 1: 30;
dissolving water-soluble chitosan by using 1% formic acid solution, then neutralizing the pH value to 5 by using sodium hydroxide solution, wherein the rinsing temperature is 80-85 ℃, and the rinsing time is 20 min;
the finished clothes after deodorization and rinsing further comprise three steps of padding, pre-drying and baking, wherein the padding liquor carrying rate of the fabric is 70%, the fabric is pre-baked to be dry at the temperature of 75-80 ℃, the baking temperature is 120-125 ℃, and the baking time is 40 min.
Example 6
Example 6 is based on example 5 except that the composition of the rinse solution comprises 7 parts of water-soluble chitosan, 0.3 part of acrylic monomer methyl methacrylate, 3 parts of t-butanol, 100 parts of water, and the rinsing time is 40 min.
0.2 part of cross-linking agent glutaraldehyde is also added into the rinsing liquid, and the rinsing liquid is pre-dried to be dry at the temperature of 90-95 ℃, the baking temperature is 130-135 ℃, and the baking time is 20 min.
Comparative example
Comparative example 1 is based on example 1 with the difference that a high temperature rinse step is not included.
Comparative example 2 is based on example 5 with the difference that the rinse does not contain 1 part of tert-butanol.
The pure cotton T-shirt and the polyester T-shirt are respectively treated by the old washing process of examples 1-4 and comparative example 1, and the polyester T-shirt is treated by the examples 1, 5-6 and comparative example 2:
1. measuring reflectance R of the ready-made clothes fabric by a Datacolor color measuring instrument, and calculating surface depth K/S = (1-R)2/2R。
2. And (3) carrying out water absorption detection on the terylene T-shirt: a drop of water was dropped onto the surface of the fabric from a height of 1cm above the sample using a burette, and the time in s (seconds) until the drop disappeared and no reflection occurred was measured.
3. And evaluating the odor of the fabric by using olfactory senses.
The detection results are as follows:
1. the surface depth values K/S of the pure cotton T-shirts treated by the examples 1-4 and the comparative example 1 are respectively as follows: 2.09, 2.37, 2.18, 2.20, 2.23; the surface depth values K/S of the polyester T-shirts treated in the examples 1 to 4 and the comparative example 1 are respectively as follows: 4.21, 4.59, 4.42, 4.45 and 4.38, and the results show that the addition of thiosulfate in the rinsing liquid has no obvious color fixing effect on the fabric dyed by the reactive dye and has a color fixing effect on the fabric dyed by the reducing dye;
2. measured water absorption of polyester T-shirts treated in examples 1, 5-6 and comparative example 2: 65.32, 19.52, 15.81, 29.74, hydroxyl radical as the initiator of the acrylic monomer polymerization, without adding tert-butyl alcohol, the initial concentration of acrylic acid in the reaction system is larger, the polymerization between acrylic monomers is easier to occur, the number of hydrophilic groups on the surface of the chitosan molecule after graft modification is small, therefore the water absorption of comparative example 2 is improved on the basis of example 1.
3. In example 6, the cross-linking agent was added to increase the probability of chitosan molecules adhering to the polyester surface, and the water absorption was further improved compared to example 5.
4. Sensory olfactory examination of the garments of comparative example 1 have an ozone odor and examples 1-5 and comparative example 2 are essentially free of ozone odor.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A high-cleanness ozone old washing process for ready-made clothes is characterized by comprising two steps of ozone water washing and ready-made clothes odor removal rinsing;
the washing liquid in the ozone washing step comprises water and ozone, the concentration of the ozone in the washing liquid is 1-3 g/mL, and the temperature of the washing liquid is not higher than 45 ℃;
the technological conditions of the ready-made clothes smell removal are as follows: placing the wet ready-made clothes washed by the ozone water into rinsing liquid at the temperature of 80-100 ℃ for rinsing in a heat preservation way, wherein the main component of the rinsing liquid is water;
the rinsing liquid also contains reductive ozone decomposition promoter;
the ozone decomposition accelerant is tert-butyl alcohol, the rinsing liquid also comprises water-soluble chitosan and acrylic monomers, and the pH value of the rinsing liquid is 5-6;
the rinsing liquid comprises the following components in parts by weight: 2-7 parts of water-soluble chitosan, 0.3-1 part of acrylic monomer and 1-3 parts of tert-butyl alcohol, wherein the rinsing temperature of rinsing liquid is 80-85 ℃, the rinsing time is 20-40 min, and the steps of padding, pre-drying and baking are also included after odor removal and rinsing of ready-made clothes.
2. The high-cleanness ozone old-washing process for ready-made clothes according to claim 1, wherein the rinsing liquid further comprises 0.05-0.2 part of a cross-linking agent, and the cross-linking agent is glyoxal and/or glutaraldehyde.
3. A high-cleanliness ozone-washout process for garments according to claim 1, wherein the acrylic monomers are acrylic acid and acrylate monomers.
4. The high-cleanness ozone washing process for the ready-made clothes according to claim 1, wherein the pre-drying temperature is 80-95 ℃, the pre-drying is carried out until the ready-made clothes are dried, the baking temperature is 120-135 ℃, and the baking time is 20-40 min.
5. The high-cleanliness ozone washout process for ready-made clothes according to claim 1, characterized in that the fabric dye of the ready-made clothes is a reducing dye.
6. The high-cleanness ozone old washing process of the ready-made clothes according to claim 1, wherein fabric fibers of the ready-made clothes comprise cotton fibers and/or polyester fibers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487879.1A CN109594370B (en) | 2018-12-06 | 2018-12-06 | High-cleanness ozone old washing process for ready-made clothes |
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| CN201811487879.1A CN109594370B (en) | 2018-12-06 | 2018-12-06 | High-cleanness ozone old washing process for ready-made clothes |
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| CN109594370A CN109594370A (en) | 2019-04-09 |
| CN109594370B true CN109594370B (en) | 2021-05-28 |
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