CN102936833A - Method for preparing total easy caring wool tops and product of wool tops - Google Patents

Abstract

The invention relates to a modification processing method of wool tops, in particular to a method for preparing total easy caring wool tops and prepared total easy caring wool tops. The method comprises raw material wool tops are fed into a top inlet frame to enable the wool tops to form a complete wool layer; hydrogen peroxide and 0.5% to 5% of non-ionic wetting penetrating agents are fed in a Kroy machine based on the wool top weight simultaneously, so that the wool tops pass through an oxidation solution spraying device in the Kroy machine successively at a constant speed to be oxidized; the oxidized wool tops enter six backwashing tanks successively, wherein deoxidization is performed in a first tank, desquamation is performed in a second tank, rinsing is performed in third and fourth tanks, 2% to 4% of polyamide resins are used for treatment in a fifth tank, and softening is performed in a six groove respectively; the processed wool tops are dried till the wool top moisture regain is in a range of 5% to 8% and placed at the room temperature for 45 hours to 52 hours to obtain finished products. Total easy caring felting shrinkage parameters of the total easy caring (TEC) wool tops comprise that the width elongation is smaller than 5%, the length shrinkage is smaller than 5%, and the area shrinkage is smaller than 8%.

Description

A kind of preparation method and product of comprehensive easy-care wool top

technical field

The invention relates to a modification treatment method for wool tops, in particular to a preparation method for comprehensive easy-care wool tops and the prepared comprehensive easy-care wool tops.

Background technique

At present, the fabrics or garments of wool textile or garment enterprises at home and abroad have technical difficulties that are easy to shrink, difficult to machine wash, and cannot be tumble dried. The existing way to solve the above-mentioned technical difficulties is to pass the wool raw material through mercerizing and anti-shrinking treatment. After the mercerizing and anti-shrinking treatment, the sharp corners of the scales on the surface of the wool become smooth and oval, and a small part of the scales are removed. When the wool rubs against each other, the fleece of the wool that loses the sharp corners of the scales is reduced, so as to achieve the purpose of shrink-proof and machine-washable wool. For example CN101519838 (2009-9-2) discloses a kind of anti-shrinkage mercerizing treatment method of wool, and CN101424040 (2009-5-6) discloses a kind of method of wool fiber modification treatment, and it passes through various modification procedures, effectively Improve the milling property of wool, achieve the effect of anti-milling and machine washable. However, fabrics made from mercerized preshrunk wool, while machine washable, should not be tumble dried.

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Contents of the invention

One of the objectives of the present invention is to provide a method for preparing wool tops with consistent and stable treatment quality, machine washable and tumble dryable, comprehensive and easy-care wool tops.

The second object of the present invention is to provide a machine-washable and tumble-dryable comprehensive easy-care wool top prepared by the preparation method.

The first technical purpose of the present invention is achieved through the following technical solutions:

A method for preparing a comprehensive easy-care wool top, comprising the following steps in sequence:

(1) Infeed: Feed raw wool strips into the infeed frame to form a complete wool layer;

(2) Oxidation: Based on the weight of the wool sliver, add hydrogen peroxide and 0.5-5% non-ionic wetting and penetrating agent into the Kroy machine at the same time, so that the wool sliver after the feeding is passed through the Kroy machine at a uniform speed The oxidizing solution spraying device is oxidized to obtain the oxidized wool sliver;

(3) Rewashing modification: put the oxidized wool strips into six rewashing tanks in sequence, deoxidize the oxidized wool strips in the first tank, descale in the second tank, Rinse in the third and fourth tanks, treat with 2-4% polyamide resin in the fifth tank, soften in the sixth tank;

(4) Drying: Dry the rewashed and modified wool top until the moisture regain of the wool top is 5-8%, and then place it at room temperature for 45-52 hours to obtain a comprehensive easy-care wool top.

The advantage of preparation method of the present invention is:

① After the wool sliver of the present invention is fed into the sliver, a specific oxidation process is used to wet the wool sliver and infiltrate it uniformly, corrode a part of the hair scales on the wool sliver, and the rewashing modification process removes the oxygen and oxygen components remaining on the wool sliver. The hair scales of the remaining scales are coated with a film on the hair shaft of the remaining scales, and then after drying the moisture regain and curing at room temperature, it is possible to obtain chlorine-free anti-shrinkage, consistent and stable wool tops;

② The preparation method of comprehensive and easy-care wool tops forms a soft film on the surface of the fiber, and makes the film and the fiber closely adhere to achieve anti-pilling and anti-shrinkage effects, and maintains the original performance and feel of wool to the greatest extent, so that the product can be used only Careful hand washing to machine washable functional breakthrough; on the basis of machine washable, it can be tumble dried, which caters to the requirements of European and American households for washing sweaters;

③ After the treatment of each modified solution of the present invention, some of the molecules are tightly bonded to the protein macromolecules on the wool strip, so that the macromolecular film formed on the wool fiber has good fastness. After machine washing, it can be dried by drum Dry color fastness, relaxation dimensional change rate, felting dimensional change rate, hand feel and appearance all meet the International Wool Bureau Total Easy Care (TEC) standard.

Preferably, the step (1) feeding method is as follows: the raw wool slivers are fed into the sliver rack through pre-opening and carding, and each wool sliver has no tension and no twist to form a complete wool layer.

More preferably, the jointing method when the raw wool sliver is fed into the sliver rack in the step (1) is: when the previous wool sliver is jointed with a new wool sliver, overlap the 18-25cm of the new wool sliver at the head end On the previous wool strip, tear the previous wool strip and wrap the leading end of the new wool strip at the same time.

The advantages of the splicing method of the present invention are: ① When the wool sliver is being jointed, the previous wool sliver and the new wool sliver do not need to be tightly rubbed against each other, the operation is simple, and at the same time, the wetting and penetration of the next step can be made more uniform and thorough; ② 18 The -25cm lapping method and the subsequent tearing and wrapping can make the wool strips go smoothly according to the feeding direction without falling off, and can make the wool strips form a complete wool layer, and can make the next step of wetting Penetration is more even and thorough.

More preferably, the wool slivers are fed into the creel in the form of hollow balls.

Preferably, the wetting and penetrating agent in the step (2) is 1-2% LISTRIL NGS from Stephenson Company, UK.

The wetting and penetrating agent of the present invention is compatible with various chemical raw materials and auxiliary agents used in the comprehensive easy-care method, and can quickly and evenly moisten and penetrate the wool strip.

Preferably, the processing speed of the step (2) in the Kroy machine is 6-8m/min.

The Total Easy Care method treats the wool at a slower rate than conventional preshrunk wool, allowing for more even wetting and penetration of the wool.

As a preference, the concentration of hydrogen peroxide in the step (2) is 25-35wt%, and the weight of the hydrogen peroxide accounts for 2-3% of the weight of the raw wool top.

As a preference, 0.1-2% defoamer is also added during oxidation in the step (2).

As a preference, in the step (3), sodium metabisulfite and sodium carbonate are added to the first tank to deoxidize the wool strip, and sodium carbonate, caustic soda and baking soda are added to the second tank to adjust the pH value to 9.5-9.8 to deoxidize the wool strip. Scale, adjust the pH value to 7.8-8 with soda ash in the fifth tank, and then add 2-4% polyamide resin for treatment, and add cationic silicone body softener and glacial acetic acid in the sixth tank.

More preferably, the step (3) also adds 0.01-1.5% Duroslip RT produced by British Stephenson Company when the sixth tank is softened.

Duroslip RT can increase the smoothness of wool tops and reduce the damage of wool fibers. When used together with cationic silicone body softener, it has better stability and further increases the anti-shrinkage performance of wool tops.

Preferably, the step (4) is dried until the moisture regain of the top is 5-8%, and then placed at room temperature for 50 hours.

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The second technical purpose of the present invention is achieved through the following technical solutions: the product obtained by the above preparation method - comprehensive easy-care wool top, its quality index: felting shrinkage parameters are width elongation < 5%, length shrinkage <5%, area shrinkage <8%.

More preferably, the fineness of the all-round easy-care wool top is 18-20 μm, the fineness CV<23%, the length ≥ 85mm, the dispersion rate<38%, and the spinning count is 30Nm/2.

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Detailed ways

Embodiment one

Take raw wool strips with a fineness of 19.5 μm as an example. The percentages in the examples are all based on the weight of raw wool tops.

The preparation method of comprehensive and easy-care wool sliver: the hollow ball of raw wool sliver is fed into the sliver frame through front opening and carding, and a complete wool layer is formed under the condition of no tension and no twist of each wool sliver; the wool sliver in front When jointing with a new wool strip, place 20cm of the entry end of the new wool strip on the previous wool strip, while tearing the previous wool strip and wrapping the entry end of the new wool strip; in Kroy Add 25wt% hydrogen peroxide, 0.5% defoamer and 1% wetting and penetrating agent of the LISTRIL NGS brand of British Stephenson company in the machine, and the weight of hydrogen peroxide accounts for 2.5% of the raw material wool bar weight, so that the Wool slivers are oxidized sequentially through the oxidation solution spraying device in the Kroy machine at a processing speed of 6.4m/min to obtain oxidized wool slivers; Add sodium metabisulfite and sodium carbonate to deoxidize the oxidized wool strips in one tank, add sodium carbonate, caustic soda and baking soda in the second tank to adjust the pH value to 9.5-9.8 for descaling, and descale in the third and fourth tanks Rinse with clean water, adjust the pH value to 7.8-8 with soda ash in the fifth tank, and then add 2.2% polyamide resin for treatment, add cationic silicone softener and glacial acetic acid in the sixth tank to soften; Dry the wool top after curing until the moisture regain of the wool top is 5-8%, and then place it at room temperature for 50 hours to obtain a comprehensive easy-care wool top.

The parameters of the obtained final product comprehensive easy-care wool top are: fineness of 18-20 μm, fineness CV<23%, length ≥85mm, dispersion rate<38%, spinning count of 30Nm/2; comprehensive easy-care felt Chemical shrinkage TWC TM31 (1×7A+1×Tumble Dry+5×1×5A+1×Tumble Dry) Width elongation<5%, length shrinkage<5%, area shrinkage<8%.

The shrinkage properties of the Total Easy Care wool tops are shown in Table 1.

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Embodiment two

Take raw wool strips with a fineness of 18 μm as an example.

The preparation method of comprehensive and easy-care wool sliver: feed the solid ball of raw wool sliver into the sliver frame through front opening and carding, and form a complete wool layer under the condition of no tension and no twist of each wool sliver; the wool sliver in front When connecting with a new wool strip, put the 18cm of the entry end of the new wool strip on the previous wool strip, and at the same time tear the previous wool strip and wrap the entry end of the new wool strip; in Kroy Add 30wt% hydrogen peroxide, 0.1% antifoaming agent and 0.5% British Stephenson company brand to be the wetting and penetrating agent of LISTRIL NGS in the machine, the weight of hydrogen peroxide accounts for 2% of raw material wool top weight, make the Wool slivers are oxidized sequentially through the oxidation solution spraying device in the Kroy machine at a processing speed of 6m/min to obtain oxidized wool slivers; Add sodium metabisulfite and sodium carbonate to the tank to deoxidize the oxidized wool strips, add sodium carbonate, caustic soda and baking soda to the second tank to adjust the pH value to 9.5-9.8 for descaling, and use it in the third and fourth tanks Rinse with clean water, adjust the pH value to 7.8-8 with soda ash in the fifth tank, and then add 2% polyamide resin for treatment, add cationic silicone body softener and glacial acetic acid in the sixth tank to soften; The final wool top is dried until the moisture regain of the wool top is 5-8%, and then placed at room temperature for 45 hours to obtain a comprehensive easy-care wool top.

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Embodiment three

Take raw wool strips with a fineness of 20 μm as an example.

The preparation method of comprehensive and easy-care wool sliver: the hollow ball of raw wool sliver is fed into the sliver frame through front opening and carding, and a complete wool layer is formed under the condition of no tension and no twist of each wool sliver; the wool sliver in front When jointing with a new wool strip, put the 25cm of the new wool strip on the previous wool strip, and at the same time tear the previous wool strip and wrap the new wool strip into the head end; in Kroy Add 35wt% hydrogen peroxide, 2% defoamer and GSK-588/GSK-565, a new type of non-silicon wetting agent from Gauss into the machine. The weight of hydrogen peroxide accounts for 3% of the weight of raw wool strips, so that the wool The slivers are oxidized sequentially through the oxidation solution spraying device in the Kroy machine at a processing speed of 8m/min to obtain oxidized wool slivers; the oxidized wool slivers are sequentially entered into six rewashing tanks, respectively in the first tank Add sodium metabisulfite and sodium carbonate to deoxidize the oxidized wool strips, add sodium carbonate, caustic soda and baking soda in the second tank to adjust the pH value to 9.5-9.8 for descaling, and use water in the third and fourth tanks For rinsing, adjust the pH value to 7.8-8 with soda ash in the fifth tank, then add 4% polyamide resin for treatment, add cationic silicone body softener and glacial acetic acid in the sixth tank to soften; The wool tops are dried until the moisture regain of the wool tops is 5-8%, and then placed at room temperature for 52 hours to obtain comprehensive easy-care wool tops.

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Embodiment four

The preparation method of comprehensive easy-care wool top: take the raw wool top with a fineness of 19.5 μm as an example. The hollow balls of the raw wool sliver are fed into the creel through the front opening and carding, and a complete wool layer is formed when each wool sliver has no tension and no twist; The 20cm of the head-in end of the new wool sliver is placed on the previous wool sliver, while the preceding wool sliver is torn apart and wrapped around the head-in end of the new wool sliver; in the Kroy machine, add 33wt% hydrogen peroxide and 2 % of the wetting and penetrating agent brand name LISTRIL NGS of the Stephenson Company of the United Kingdom, the weight of hydrogen peroxide accounts for 2.2% of the weight of the raw wool strips, so that the wool strips after entering the strips pass through the Kroy machine at a processing speed of 6m/min. The oxidizing solution spraying device is oxidized to obtain the oxidized wool sliver; the oxidized wool sliver is sequentially entered into six rewashing tanks, and sodium metabisulfite and sodium carbonate are respectively added to the first tank to treat the oxidized wool sliver. Deoxidation, add sodium carbonate, caustic soda and baking soda in the second tank to adjust the pH value to 9.5-9.8 for descaling, rinse with water in the third and fourth tanks, and adjust the pH value to After 7.8-8, add polyamide resin for treatment, add cationic silicone body softener, glacial acetic acid and 0.01-1.5% Duroslip RT produced by British Stephenson Company in the sixth tank to soften, and rewash and modify Dry the wool top until the moisture regain of the wool top is 5-8%, and then place it at room temperature for 48 hours to obtain a comprehensive easy-care wool top.

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Table 1 Performance comparison of various wool sliver washing shrinkage technologies

Form description:

1. All "machine washable and tumble dryable" ("full easy care wool" or "easy care wash and wear wool") category wool tops shall be spun into yarn and knitted into sheets as described in Woolmark Test Method TM31 And after finishing, the evaluation of washing classification is carried out. Dimensions were measured on samples after relaxation and shrinkage (ie after 1 x 7A + 1 tumble drying cycle). 2. Evaluation of appearance after laundering is not required because this item is only applicable to garments: for example, only size change is evaluated. 3. Contraction is represented by a minus sign (-), and elongation is represented by a plus sign (+).

This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

Claims (10)

1. comprehensive easily preparation method of nursing wool tops is characterized in that: may further comprise the steps successively:

(1) ingoing silver: with raw material wool tops feeding ingoing silver frame, make it form a complete batt;

(2) oxidation: take wool tops weight as benchmark, the wetting and penetrating agent that in the Kroy machine, adds simultaneously the nonionic of hydrogen peroxide and 0.5-5%, make the wool tops behind the described ingoing silver in the Kroy machine, carry out oxidation by the oxidizing solution spray equipment at the uniform velocity successively, obtain the wool tops after the oxidation processes;

(3) after backwashing modification: the wool tops after the described oxidation processes is entered six after backwashing grooves successively, respectively in the first groove to the wool tops deoxidation after the described oxidation processes, desquamation in the second groove, rinsing in the 3rd, the 4th groove, in the 5th groove with the 2-4% polyamide process, softening in the 6th groove;

(4) oven dry: with the wool tops after the described after backwashing modification dry to the wool top regain be 5-8%, then place 45-52h under the room temperature and obtain comprehensively easily nursing wool tops.

2. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 1, it is characterized in that: described step (1) ingoing silver method is specially: the raw material wool tops is fed the ingoing silver frame with the hollow ball form by front shredding combing, in the situation that every wool top without the tension force no twist, forms a complete batt.

3. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 2, it is characterized in that: the joint method during described step (1) raw material wool tops feeding ingoing silver frame is: the preceding when wool tops and new wool tops joint, the 18-25cm that advances head end of new wool tops is ridden over the preceding on the wool tops, and the head end that advances of new wool tops is torn and encased to wool tops the preceding simultaneously.

4. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 2, it is characterized in that: the wetting and penetrating agent of described step (2) is the LISTRIL NGS that 1-2% English history is carried Fen Xun company.

5. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 1, it is characterized in that: the processing speed of described step (2) in the Kroy machine is 6-8m/min.

6. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 1, it is characterized in that: the concentration of described step (2) hydrogen peroxide is 25-35wt%, the weight of described hydrogen peroxide accounts for the 2-3% of raw material wool tops weight, has also added the defoamer of 0.1-2% during oxidation.

7. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 1, it is characterized in that: described step (3) adds sodium pyrosulfite and sodium carbonate to the wool tops deoxidation in the first groove, in the second groove, add sodium carbonate, sheet alkali and sodium bicarbonate regulate pH value to 9.5-9.8 to the wool tops desquamation, adjust first pH value with soda ash at the 5th groove and to 7.8-8, add again the processing of 2-4% polyamide, in the 6th groove, add CATION silicone body softener and glacial acetic acid.

8. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 7, it is characterized in that: described step (3) also adds 0.01-1.5% English history and carries the Duroslip RT that Fen Xun company produces when the 6th groove is softening.

9. the preparation method of a kind of comprehensively easily nursing wool tops according to claim 1 is characterized in that: described step (4) dry to the wool top regain be 5-8%, then place 50h under the room temperature.

10. comprehensively easy nursing wool tops of preparation method's preparation of each described a kind of comprehensively easily nursing wool tops according to claim 1-9, it is characterized in that: easily nursing felting shrinkage parameters is width elongation＜5% comprehensively, Length Contraction＜5%, area shrinks＜8%.