CN113186679A - Water washing method for preventing slipping and bouncing and denim fabric - Google Patents
Water washing method for preventing slipping and bouncing and denim fabric Download PDFInfo
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- CN113186679A CN113186679A CN202110332003.5A CN202110332003A CN113186679A CN 113186679 A CN113186679 A CN 113186679A CN 202110332003 A CN202110332003 A CN 202110332003A CN 113186679 A CN113186679 A CN 113186679A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
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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
- D06L1/14—De-sizing
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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
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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
- D06P5/151—Locally discharging the dyes with acids or bases
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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
- D06P5/153—Locally discharging the dyes with oxidants
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Abstract
The invention discloses a water washing method for preventing slipping and bouncing and denim fabric, wherein the method comprises the following steps: s1: desizing; s2: stone washing; s3: rinsing; s4: dehydrating and drying; s5: oxidizing; s6: neutralizing; s7: and (4) removing hair. The invention has proper washing procedure, reduces the loss of spandex caused by heavy washing water and keeps the elasticity of the sewing part of the jean fabric.
Description
Technical Field
The invention relates to the field of washing of denim fabric, in particular to a water washing method for preventing slipping and bouncing and denim fabric.
Background
In the past era development, the jean fabric is still one of the clothes types most lovely for people. The jean fabric can stand at the front of fashion clothes all the time, becomes an indispensable part on the stage of the fashion clothes, depends on the design of clothes styles and changes a multi-end after-finishing process, wherein the water washing process is an important link and is important embodiment for determining the additional value of the jean fabric.
The denim fabric can be endowed with unique style appearance and comfortable wearing performance through a washing procedure, and a general washing method comprises the washing procedures of stone grinding, enzyme bleaching, chlorine bleaching, oxygen bleaching, manganese bleaching and the like, so that the performance and the structure of fibers can be damaged, and the structure of indigo dye can be damaged, and the denim fabric can achieve the 'vintage' effect. However, the washing process can damage the spandex in the denim, particularly, the probability of slippage and elasticity at the sewing position of the denim clothes subjected to the re-washing process is high, the problem of clothes quality caused by damage to the elasticity performance is solved, and the slippage and elasticity exist irreversibly, so that the elbow is restricted for the denim cloth development.
Disclosure of Invention
The invention provides a washing method for preventing slide bullets and denim fabric, aiming at solving the technical problems and preventing the denim fabric from slide bullets in the washing process.
The technical scheme for solving the technical problems comprises the following steps:
a water washing method for preventing slippery bullets comprises the following steps:
s1: desizing;
s2: stone washing;
s3: rinsing;
s4: dehydrating and drying;
s5: oxidizing;
s6: neutralizing;
s7: and (4) removing hair.
Preferably, in the step S1, the desizing process is: adding water, heating to 45-46 ℃, and adding alkaline oil and loss-proof and anti-dyeing powder to wash the denim fabric for 8-10 min; wherein, the volume ratio of the alkaline oil, the loss-proof and anti-dyeing powder and the water is as follows: 0.002 to 0.003: 0.005-0.007: 1.
preferably, in the step S2, the stone-washing process is: adding; washing the desized jean fabric with pumice, water, alkaline oil, loss-proof and anti-dyeing powder and neutral enzyme powder for 40-41 min at normal temperature; wherein, the volume ratio of alkaline oil, the loss-proof and elastic dyeing powder, the neutral enzyme powder and the water is as follows: 0.003 to 0.005,: 0.01-0.012: 0.003-0.0035: 1.
preferably, in the step S3, the rinsing process is: adding a bleaching solution, heating to 49-50 ℃, and washing the decontaminated jean fabric for 8-10 min; the bleaching solution comprises caustic soda, sodium hypochlorite, alkaline oil, washing powder and water, and the volume ratio is as follows: 0.003-0.0034: 0.008: 0.012: 0.002-0.004: 0.004: 1.
preferably, in the step S5, the oxidation process is: adding industrial salt with more than solubility into the potassium permanganate solution, and carrying out oxidation and normal-temperature water washing on the denim fabric for 10min, wherein the solubility is the solubility of the industrial salt in the potassium permanganate solution at the current temperature.
Preferably, the hair removing process of step S7 is: adding water, glacial acetic acid, alkaline oil and dehairing enzyme water to wash the neutralized denim fabric; wherein, the alkaline oil, the hair removing ferment water, the glacial acetic acid and the water have the volume ratio: 0.002 to 0.003: 0.0028-0.0033: 0.0015-0.0016: 1.
Preferably, the method further comprises the softening step: adding water, a softening agent and a cotton feeling fluffing agent to wash the unhaired jean fabric, wherein the softening condition is as follows: the concentration of the softening agent is 7.6-8 g/L, and the cotton feeling fluffing agent is 3.2-3.5 g/L.
Preferably, a horse rat finishing step is further arranged before the step of S7, and the jean fabric is subjected to local oxidation by using a treating fluid containing potassium permanganate.
Preferably, the step of S4 is repeated before the step of washing the horse; after the horse rat distillation step is performed, the step S6 is repeated.
Denim fabric prepared by using the water washing method for preventing slipping and bouncing.
The invention has the following beneficial effects: by the method, the color of the denim fabric becomes light after the denim fabric with the dark color is subjected to a series of washing methods, the denim fabric belongs to heavy washing water, and particularly, the color of the denim fabric with the dark color drops obviously, so that the denim fabric with the dark color has larger style change. The invention adjusts the washing procedure, so that the spandex in the yarn is less influenced by washing water such as rinsing (chlorine bleaching, manganese bleaching) and stone grinding, the loss of the spandex by the washing water can be more effectively reduced, the loss of the spandex is less than one tenth, and the phenomena of slipping and arching do not occur at the sewing position, so that the sewing position keeps elasticity and smooth and beautiful, and the quality of cloth is ensured.
Drawings
Fig. 1 is a flow chart of a method of washing water to prevent a slipshell.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1, a method for washing water to prevent a slippery bullet includes the steps of:
a water washing method for preventing slippery bullets comprises the following steps:
s1: desizing;
s2: stone washing;
s3: rinsing;
s4: dehydrating and drying;
s5: oxidizing;
s6: neutralizing;
s7: and (4) removing hair.
In one embodiment, in step S1, the desizing process is: adding water, heating to 45-46 ℃, and adding alkaline oil and loss-proof and anti-dyeing powder to wash the denim fabric for 8-10 min; wherein, the volume ratio of the alkaline oil, the loss-proof and anti-dyeing powder and the water is as follows: 0.002 to 0.003: 0.005-0.007: 1.
in one embodiment, in step S2, the stone-washing process includes: adding pumice, water, alkaline oil, loss-proof and anti-dyeing powder and neutral enzyme powder to wash the desized jean fabric for 40-41 min at normal temperature; wherein, the volume ratio of alkaline oil, the loss-proof and elastic dyeing powder, the neutral enzyme powder and the water is as follows: 0.003 to 0.005,: 0.01-0.012: 0.003-0.0035: 1.
in one embodiment, in step S3, the rinsing process is: adding a bleaching solution, heating to 49-50 ℃, and washing the decontaminated jean fabric for 8-10 min; the bleaching solution comprises caustic soda, sodium hypochlorite, alkaline oil, washing powder and water, and the volume ratio is as follows: 0.003-0.0034: 0.008: 0.012: 0.002-0.004: 0.004: 1.
in one embodiment, in step S5, the oxidation process is: adding industrial salt with more than solubility into the potassium permanganate solution, and carrying out oxidation and normal-temperature water washing on the jean fabric for 10min, wherein the solubility is the solubility of the industrial salt in the potassium permanganate solution at the current temperature.
In one embodiment, the hair removal process of step S7 is: adding water, glacial acetic acid, alkaline oil and dehairing enzyme water to wash the neutralized denim fabric; wherein, the alkaline oil, the hair removing ferment water, the glacial acetic acid and the water have the volume ratio: 0.002 to 0.003: 0.0028-0.0033: 0.0015-0.0016: 1.
Wherein, it is also noted that when the fabric is weaved, the sizing agent is coated to bind the fabric fiber, and the sizing agent is washed off when washing water. The alkaline oil has good emulsifying, dispersing and penetrating abilities, can remove various dirt of fabrics, improves the penetrating ability of the solution to the jean fabric in the desizing step, and cleans residual pulp blocks among fibers. Alkaline oil, enzyme, acid, alkali and other solutions can be used for desizing treatment. The slurry is degraded by the other solutions except alkaline oil through chemical reaction, and the spandex is damaged in the process, so that the smooth elasticity is caused, namely the elastic property of the spandex is weakened. And the alkaline oil increases the viscosity of the solution, and the sizing agent on the surface of the denim fabric is removed in a physical mode, so that the spandex is not easily damaged. In addition, the anti-loss and anti-dyeing powder has wetting, emulsifying, anti-sticking and emulsion breaking capabilities, and can play a good role in protecting spandex.
In the step of stone washing, pumice collides with the denim fabric and is polished, so that the denim fabric has textures and shows a rough and wild garment effect. The neutral enzyme powder oxidizes the indigo dye of the denim fabric, damages the dye structure and forms a unique pattern style of the denim fabric. Wherein, the dosage of the loss-proof and dye-proof powder is increased for protecting spandex from being adhered by oxidant. After the stone washing step is finished, fine particles such as stone particles and the like are remained, and the jean fabric needs to be cleaned. The specific cleaning steps are that the volume ratio is 0.002-0.003: 1 washing the jean fabric by using alkaline oil and water simultaneously.
The rinsing step is a main process of a heavy washing water process, is different from other washing water processes, and mainly can obviously fade the jean fabric to achieve the required light color style. The bleaching solution is chlorine-containing alkaline solution, and is dissolved in water to generate chlorine water, so that the jean fabric is faded and has old feeling. Spandex is not chlorine-resistant and is easy to degrade in alkaline solution, and by increasing the temperature, the rinsing time is shortened, and the damage to the spandex is reduced. The jean fabric fades in the rinsing step, and the jean fabric has worn-out appearance. In the rinsing step, both caustic soda and chloride ions play a good bleaching role on the denim fabric, and can achieve an excellent fading effect when being used in a matched manner, but can degrade spandex, so that the solution in a washing machine needs to be heated, the reaction rate is increased, the activity of the solution is improved by adding washing powder, and the soaking time of the denim fabric is shortened. Alkaline oil is used to increase the permeability of the solution. The bleached dark jean fabric achieves a better fading effect and forms a unique garment style.
In the oxidation step, potassium permanganate with high oxidation property is used, and the redox dye is used for fading the jean fabric, so that the jean fabric is further old. Before rinsing with the potassium permanganate solution, the jean fabric needs to be dried first, so that the phenomenon that the fading effect is reduced due to the fact that the potassium permanganate solution is diluted by the wet jean fabric is avoided. And after the oxidation step is finished, carrying out neutralization reaction on the residual potassium permanganate solution on the denim fabric. The oxidation step is a 'snowflake washing' process, and aims to oxidize snowflake-shaped irregular patterns on the jean fabric.
It should also be noted that in the oxidation step, the denim fabric is polished by using industrial salt as pumice, and potassium permanganate oxidizes polished points. Specifically, a large amount of industrial salt is added into water, so that the concentration of the industrial salt in the solution is protected, and a large amount of crystal industrial salt is separated out to collide and rub with the jean fabric. The crystal-shaped industrial salt is smaller than pumice, and can avoid the damage of spandex due to collision. In addition, the industrial salt cannot be completely dissolved; for example, 100L of water and 50KG of industrial salt are added. At normal temperature. 50KG industrial salt can not be completely dissolved in 100L of water, the solubility of the industrial salt in each liter of water is 0.398KG at normal temperature, and the rest solid and crystal industrial salt rotates in the water washing machine and rubs with the jean cloth. The friction causes the indigo fuel at the inner layer to be exposed and oxidized by the potassium permanganate solution, and irregular white spots are generated on the jean fabric, so that the jean fabric is more attractive. In addition, after the dewatering in the oxidation step, solid industrial salt is adhered to the jean fabric, and the solid industrial salt can be dissolved only by adding clean water and then discharged. Compared with pumice washing, the method can protect spandex from being damaged, can clean the denim fabric, and has no foreign matter attached to the inner layer and the outer layer of the denim fabric.
In the step S6, sodium bisulfite is used to neutralize the oxidized jean fabric and remove potassium permanganate therein.
In the hair removing step, glacial acetic acid is used for reducing the pH value of the solution, the solution is weakly acidic, hair removing enzyme water is used in an acidic environment for removing disordered fluff on the denim fabric, the prepared denim fabric is smooth and free of concave-convex feeling, and the fluff and pilling amount is obviously reduced.
And finally, softening the jean fabric in a softening step, ensuring comfortable wearing, and drying the jean fabric to obtain a finished product. Wherein, in order to avoid influencing the next procedure, each step is finished, namely the washing is carried out by using clean water, and the phenomenon that the residual solution reacts with the solution in the next step to influence the washing effect is avoided.
In the whole re-washing water process, the spandex is sensitive to temperature, and the spandex is easy to be chemically corroded or physically damaged due to overlong soaking time. According to different added assistants and the requirements of different washing procedures, the washing temperature and the washing time in different procedures are different. The influence of temperature on the spandex structure is relatively large, the temperature is increased to be beneficial to stabilizing the spandex size stability and improving the solution activity, but the spandex is caused to slide and bounce by overhigh temperature. The slippery bounce refers to the condition that the spandex is damaged by temperature, external force or chemical reaction in the process of washing water, so that the spandex is changed in length and the elastic property is weakened. In the washing process, when the washing effect is not ideal, the washing effect is improved by increasing the washing time, the temperature cannot be easily increased, and the damage of the temperature to spandex is particularly obvious. Generally, the temperature of all water is lower than 60 ℃ in the washing process.
In the process of heavy washing, in order to achieve the obvious fading effect of the jean fabric, the environmental conditions are drawn to a proper interval as much as possible when the working procedure is carried out, the phenomenon that spandex slips and bounces due to overhigh temperature is avoided, and the fading is not obvious when the temperature is too low is avoided. In the embodiment of the application, when the desizing process is carried out, the condition in the water washing machine meets the temperature of 45-46 ℃ as much as possible, and the water washing time is within 8-10 min. Enough jean fabric can achieve the required style effect, the reaction environment is mild, and the elastic performance of spandex cannot be excessively damaged.
In a plurality of steps of the washing process, jean cloth and water are added in the general process, and the formula solution can be added after heating and rotating. The method has the advantages that in the process of adding the formula solution, the solution is quickly diffused in the washing machine, the phenomenon that the washing effect of the denim fabric is influenced due to the fact that the solution is accumulated in a local area and uneven in concentration is avoided, and the phenomenon that the denim fabric is added when the washing machine rotates at a high speed is avoided, and the denim fabric is possibly damaged. In addition, the kansui oil MP-88 is used in kansui oil, and the anti-ballistic and anti-dyeing powder P900 is used in kansui oil. The Taiwan kanji oil MP-88 and the loss-elasticity and dye-proofing powder P900 have excellent permeability emulsibility, are stable in acidity, alkalinity and hard water, can be compatible with various assistants, and have wide application range.
In one embodiment, the method further comprises the softening step: adding water, a softening agent and a cotton feeling fluffing agent to wash the unhaired jean fabric, wherein the softening condition is as follows: the concentration of the softening agent is 7.6-8 g/L, and the cotton feeling fluffing agent is 3.2-3.5 g/L.
The softening step is used for softening the jean fabric, reducing the hardness of the fabric and improving the softness, so that the jean fabric is comfortable to wear. Specifically, a softening agent and a cotton feeling fluffing agent are added into water and treated for 5min at normal temperature.
In one embodiment, a horse rat finishing step is further provided before the step of S7, and the jean fabric is subjected to partial oxidation by using a treating fluid containing potassium permanganate.
The horse rat finishing step is to carry out secondary oxidation on the jean fabric, the process does not need to be carried out in a water washing machine, a solution containing potassium permanganate is used for spraying the local area of the jean fabric, the local color of the jean fabric is faded, and a pattern with a more special appearance is created.
In one embodiment, the step of S4 is repeated before the process of performing the process of washing the horse; after the horse rat distillation step is performed, the step S6 is repeated.
The horse rat finishing step is a localized oxidation step, and the jean fabric also needs to be dried before the potassium permanganate solution is sprayed. The wet jean cloth can diffuse the potassium permanganate solution, so that the regular case is difficult to form, and the potassium permanganate concentration can be diluted. After the oxidation is completed, the remaining solution is neutralized and cleaned. In other words, the refining of the horse rat finishing step, i.e., the step S5, can be performed in the step S5, so as to make the local pattern of the jean fabric more beautiful.
In the washing process of the denim fabric, certain auxiliary agents with oxidability or alkalinity can damage spandex, and in addition, spandex can be damaged when the temperature is too high. The concentration and the proportion of the chemical auxiliary agent are controlled in the washing process, or the proper water temperature and the washing time are set, so that the spandex structure can be well protected while washing and distressing the denim fabric. Among them, the stone-washing step, rinsing step and oxidation step have the greatest damage to spandex, and special attention needs to be paid to the protection of spandex in this step. The optimal protection scheme is obtained by controlling the washing time, temperature and auxiliary agent ratio of the stone washing step and the rinsing step. In addition, in the washing process, the influence of the temperature on spandex is the largest, and the temperature needs to be strictly controlled, so that the solution temperature in each step does not float too much. In the oxidation step, fine industrial salt is used for replacing pumice to play a role in rubbing the denim fabric, and the damage to spandex is low.
The water washing method for preventing the slide bullet is described by using different detailed embodiments:
example 1:
s1: desizing: adding the denim fabric into a water washing machine, adding 100L of water, heating to 45 ℃, adding 200ml of alkaline oil and 500ml of anti-ballistic and anti-dyeing powder, and washing for 10 min;
s2: stone washing: adding 20KG pumice, 100L water, 300ml alkaline oil, 1L loss-proof and anti-dyeing powder and 300ml neutral ferment powder, and washing for 40min at normal temperature;
decontamination: adding 100L of water and 200ml of alkaline oil, and cleaning for 5 min;
s3: rinsing: adding 100L of water, heating to 50 ℃, and then adding 320ml of caustic soda, 800ml of sodium hypochlorite and 200ml of alkaline oil for washing for 10 min;
s4: dewatering and drying: treating denim fabric in a dehydrator for 3-5min, and then treating in a dryer at 100 ℃ for 25 min;
s5: and (3) oxidation: adding the jean cloth into a water washer, and adding 100L of potassium permanganate solution and 50KG of industrial salt for normal-temperature treatment for 10 min;
s6: neutralizing: adding 100L water and 240g sodium bisulfite again, and washing with water at normal temperature for 3 min;
s7: hair removal: adding 100L of water, heating to 40 ℃, adding 15g of glacial acetic acid, 200ml of alkaline oil and 300ml of hair removal enzyme water, and washing for 10 min;
softening: adding 100L of water, 780g of softening agent and 330g of cotton feeling fluffing agent, and washing for 5 min;
repeating the dehydration and drying steps to obtain a finished product;
in example 1, the denim fabric was subjected to washing treatment in sequence in each step, and the washing conditions in each step were independent.
Example 2:
s1: desizing: adding the denim fabric into a water washing machine, adding 100L of water, heating to 46 ℃, adding 250ml of alkaline oil and 580ml of anti-ballistic and anti-dyeing powder, and washing for 8 min;
s2: stone washing: adding 20KG pumice, 100L water, 400ml alkaline oil, 1.1L loss-elasticity-proof and dye-resistant powder and 300ml neutral ferment powder, and washing with water at normal temperature for 41 min;
decontamination: adding 100L of water and 200ml of alkaline oil, and cleaning for 5 min;
s3: rinsing: adding 100L of water, heating to 49 ℃, and then adding 300ml of caustic soda, 900ml of sodium hypochlorite and 300ml of alkaline oil for washing for 10 min;
s4: dewatering and drying: treating denim fabric in a dehydrator for 3-5min, and then treating in a dryer at 100 ℃ for 25 min;
s5: and (3) oxidation: adding the jean cloth into a water washing machine, and treating for 10min at normal temperature by using 100L of potassium permanganate solution and 50KG of industrial salt;
s6: neutralizing: adding 100L water and 240g sodium bisulfite again, and washing with water at normal temperature for 3 min;
s7: hair removal: adding 100L of water, heating to 40 ℃, adding 15g of glacial acetic acid, 200ml of alkaline oil and 280ml of hair removal enzyme water, and washing for 10 min;
softening: adding 100L of water, 800g of softening agent and 320g of cotton feeling fluffing agent, and washing for 5 min;
repeating the dehydration and drying steps to obtain a finished product;
in example 2, the denim fabric was subjected to washing treatment in sequence in each step, and the washing conditions in each step were independent.
Example 3:
s1: desizing: adding the denim fabric into a water washing machine, adding 100L of water, heating to 45 ℃, adding 300ml of alkaline oil and 700ml of anti-ballistic and anti-dyeing powder, and washing for 8 min;
s2: stone washing: adding 20KG pumice, 100L water, 500ml alkaline oil, 1.2L loss-proof and anti-dyeing powder and 350ml neutral ferment powder, and washing with water at normal temperature for 40 min;
decontamination: adding 100L of water and 200ml of alkaline oil, and cleaning for 5 min;
s3: rinsing: adding 100L of water, heating to 50 ℃, and then adding 340ml of caustic soda, 1.2L of sodium hypochlorite and 400ml of alkaline oil for washing for 9 min;
s4: dewatering and drying: treating denim fabric in a dehydrator for 3-5min, and then treating in a dryer at 100 ℃ for 25 min;
s5: and (3) oxidation: adding the jean cloth into a water washing machine, and treating for 10min by using 100L of potassium permanganate solution and industrial salt;
s6: neutralizing: adding 100L water and 240g sodium bisulfite again, and washing with water at normal temperature for 3 min;
s7: hair removal: adding 100L of water, heating to 40 ℃, adding 15g of glacial acetic acid, 200ml of alkaline oil and 310ml of hair removal enzyme water, and washing for 10 min;
softening: adding 100L of water, 760g of softening agent and 350g of cotton feeling fluffing agent, and washing for 5 min;
repeating the dehydration and drying steps to obtain a finished product;
in example 3, the denim fabric was subjected to washing treatment in sequence in each step, and the washing conditions in each step were independent.
The technical scheme also protects denim fabric which is prepared by the above washing method for preventing the slippery shell.
Wherein the elasticity of the denim fabric is tested using an elasticity test method. Firstly, sampling: laying and standing the jean fabric for several hours; and (5) cutting again: cutting off the thread of the jean fabric for sewing; finally yarn untwisting: and taking the yarn out of the fabric, and comparing the length of spandex-free yarn to know whether the yarn is slippery and elastic. And testing whether the elasticity of the jean fabric prepared by the water washing method for preventing the slippery bomb is lost.
The slide and bullet conditions are as follows: and if the length ratio of the spandex to the yarn is less than 9/10, the jean fabric is smooth and elastic. In general, the core-spun yarn is formed by coating an inner layer of stretch yarn with an outer layer of short fibers according to a certain drafting multiple, so that the stretched stretch yarn is similar to the length of the yarn. In the washing process, the spandex is degraded and damaged by collision to shrink, and if the spandex length is judged to be less than 9/10 of the yarn length, the jean fabric is smooth and elastic.
Compared with the denim fabric with the same fabric style prepared by a series of washing methods in the prior art, the denim fabric prepared by the technical scheme has the advantages that spandex of the denim fabric is less affected by washing water, the elasticity of the fabric can be effectively maintained, the sliding elasticity rate is lower, and the details are shown in table 1:
| elastic elongation | Rate of increase | Elastic recovery rate | Whether to slide or not | |
| FabricA | 52% | 6.8% | 82.6% | Slide bomb |
| Fabric 1 | 67.6% | 4.4% | 92.4% | Without sliding bullet |
| Fabric 2 | 70.2% | 4.9% | 91.6% | Without sliding bullet |
TABLE 1
The elastic elongation rate is the maximum elastic stretching performance of the spandex yarn, the increase rate is the change condition of the spandex yarn compared with the original length, and the elastic recovery rate is the length ratio of spandex to yarn in the spandex yarn. The same dark jean fabric is subjected to three different heavy washing water processes to obtain a fabric A, a fabric 1 and a fabric 2, and the fabric A, the fabric 1 and the fabric 2 have the same light color appearance style. The fabric 1 and the fabric 2 are denim fabrics prepared in examples 1 and 2 respectively, and the fabric A is denim fabric prepared by a washing method in the prior art. Wherein, the washing method in the prior art comprises the following steps:
1. feeding cloth;
adding alkaline oil and loss-proof and anti-dyeing powder into water at the temperature of 2.60 ℃, desizing the mixture with stones for 20 minutes, and passing through clear water twice;
adding alkaline oil and loss-proof and anti-dyeing powder into water at the temperature of 3.50 ℃, performing stone grinding for 50 minutes to plate, and passing clean water twice;
adding the anti-ballistic and anti-dyeing powder, the washing powder and alkaline oil into water at the temperature of 4.40 ℃ for rinsing for 6 minutes;
5. using dioxygen for hydrolysis and bleaching for neutralization;
6. adding golden yellow and yellow brown;
7. drying;
8. frying salt;
9. hydrogen peroxide and sodium metabisulfite;
10. drying;
11. fully spraying horse rat;
12. sodium metabisulfite is washed;
13. hair removal is carried out for 7 minutes by cold water;
14. adding golden yellow and yellow brown;
15. and (5) softening and drying.
The test results obtained by testing various parameters of the fabric A, the fabric 1 and the fabric 2 are shown in the table above. By contrast, on the premise of obtaining the same light-color appearance style, the jean fabric washed by the technical scheme can keep better elastic effect and can prevent the jean fabric from generating slippery elasticity.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (10)
1. A water washing method for preventing slippery bullets is characterized by comprising the following steps:
s1: desizing;
s2: stone washing;
s3: rinsing;
s4: dehydrating and drying;
s5: oxidizing;
s6: neutralizing;
s7: and (4) removing hair.
2. The method for preventing slippery projectile from washing water as claimed in claim 1, wherein the desizing process in step S1 is: adding water, heating to 45-46 ℃, and adding alkaline oil and loss-proof and anti-dyeing powder to wash the denim fabric for 8-10 min; wherein, the volume ratio of the alkaline oil, the loss-proof and anti-dyeing powder and the water is as follows: 0.002 to 0.003: 0.005-0.007: 1.
3. the method for washing water to prevent bullets as claimed in claim 1, wherein in the step of S2, the stone washing process is: adding pumice, water, alkaline oil, loss-proof and anti-dyeing powder and neutral enzyme powder to wash the desized jean fabric for 40-41 min at normal temperature; wherein, the volume ratio of alkaline oil, the loss-proof and elastic dyeing powder, the neutral enzyme powder and the water is as follows: 0.003 to 0.005,: 0.01-0.012: 0.003-0.0035: 1.
4. the method for washing water with a slippery shell as claimed in claim 1, wherein the rinsing process in the step S3 is as follows: adding a bleaching solution, heating to 49-50 ℃, and washing the decontaminated jean fabric for 8-10 min; the bleaching solution comprises caustic soda, sodium hypochlorite, alkaline oil, washing powder and water, and the volume ratio is as follows: 0.003-0.0034: 0.008: 0.012: 0.002-0.004: 0.004: 1.
5. the method for washing water with a slippery shell as claimed in claim 1, wherein the oxidation process in the step of S5 is: adding industrial salt with more than solubility into the potassium permanganate solution, and carrying out oxidation and normal-temperature water washing on the denim fabric for 10min, wherein the solubility is the solubility of the industrial salt in the potassium permanganate solution at the current temperature.
6. The method of claim 1, wherein the step S7 comprises the steps of: adding water, glacial acetic acid, alkaline oil and dehairing enzyme water to wash the neutralized denim fabric; wherein, the alkaline oil, the hair removing ferment water, the glacial acetic acid and the water have the volume ratio: 0.002 to 0.003: 0.0028-0.0033: 0.0015-0.0016: 1.
7. The method of claim 1, further comprising the step of softening: adding water, a softening agent and a cotton feeling fluffing agent to wash the unhaired jean fabric, wherein the softening condition is as follows: the concentration of the softening agent is 7.6-8 g/L, and the cotton feeling fluffing agent is 3.2-3.5 g/L.
8. The method for washing water to prevent bullets as claimed in claim 1, wherein a horse rat finishing step is further provided before the S7 step, and the jean fabric is partially oxidized using a treatment solution containing potassium permanganate.
9. The method of claim 8, wherein the step S4 is repeated before the horse rat finishing step is performed; after the horse rat distillation step is performed, the step S6 is repeated.
10. Denim fabric characterized by being prepared by the method for washing water for preventing bullets according to any one of claims 1 to 9.
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