CN107476072B - Washable shrink-proof knitted garment and preparation method thereof - Google Patents

Abstract

The invention provides a washable and shrink-resistant knitted garment and a preparation method thereof. The method includes: scouring, dyeing and enzymatic treatment of the knitted fabric; padding the knitted fabric with a resin finishing solution to control the rolling ratio of 50%-100%; drying the knitted fabric on a setting machine, controlling The drying temperature is 50-130° C., and the drying time is 1-10 min; the knitted fabric is made into a garment; the garment is ironed and baked to obtain a washable and shrink-resistant knitted garment. The knitted garment provided by the invention has low shrinkage, no fading, excellent appearance flatness after washing and anti-pilling.

Description

A kind of washable and shrink-proof knitted garment and preparation method thereof

technical field

The invention relates to a washing-resistant and shrink-proof knitted garment and a preparation method thereof, belonging to the field of textile and garment.

Background technique

Knitted garments containing cellulose fibers have the advantages of comfortable wearing, moisture absorption and breathability, and soft hand feeling, and have always been favored by consumers. However, due to the loose structure of knitted fabrics, cellulose-containing knitted garments without anti-wrinkle and anti-shrinkage finishing have shortcomings such as large shrinkage, easy wrinkling, and poor shape retention after repeated washing, which greatly affects the wearing performance of such knitted garments. and quality.

In view of the above deficiencies of cellulose fiber-containing knitted garments, the most commonly used improvement method in the industry is to carry out resin finishing. The resin finishing agent reacts with the macromolecules of the cellulose fibers, and establishes stable chemical cross-links between the segments of the macromolecules of the fibers, and the shrinkage caused by the internal stress is significantly reduced. In addition, the internal cross-linking of fibers seals part of -OH, which reduces the hygroscopicity of cellulose fibers, inhibits hygroscopic swelling, and reduces shrinkage caused by weaving shrinkage. On the other hand, the resin finishing agent and the cellulose fiber are covalently cross-linked, so that the recovery ability of the fiber from deformation is improved, and the wrinkle resistance ability of the fiber is improved. After resin finishing, in addition to the significant improvement in wrinkle resistance, the shrink resistance of the fabric is also improved.

At present, the resin finishing of knitted fabrics in the industry usually has two methods: Pre-cure and Garment-dipping. Pre-baking is a no-iron finish to the fabric. The non-iron finishing liquid is applied to the fabric through a setting tenter, and after high temperature baking, the resin finishing liquid enters the fiber and crosslinks. The method is simple in operation and low in cost. Due to the short pre-baking time and incomplete cross-linking, the ideal anti-wrinkle and anti-shrinkage effect cannot be obtained. For example, Yu Mingna et al. used etherified resin to perform anti-wrinkle and non-iron finishing on pure cotton knitted fabrics in "Technology Discussion on Anti-Wrinkle and Non-Iron Knitted Garments", adopting one dipping and one rolling process, pre-baking at 100°C x 60s, and baking at 170°C x 45s. craft. After no-iron finishing, the flatness of the cloth surface reaches level 4, and the shrinkage can meet the requirements of -8%x-8%, but it still needs to go through 1 laundry washing to reach the normal customer standard of shrinkage -5x-5 (AATCC150). .

The non-iron finishing of ready-made garments is the non-iron finishing of the garments. The non-iron finishing liquid is applied to the garments by spraying or dipping. Since the whole operation process is carried out under loose conditions, the shrinkage of the fabrics caused by the weaving shrinkage is eliminated. The internal stress of the fiber is fully released. In addition, the way of pre-baking combined with baking makes the resin react more fully. This process can achieve better anti-shrinkage and anti-wrinkle effect, but the production process is long and it is more difficult to control the size of the garment. Wrinkling occurs at the seam due to the difference in shrinkage of the seam and the fabric during wet processing. For example, Fan Xuerong and others in "Non-Iron Finishing of Cotton Knitted T-Shirts" selected a non-iron finishing agent, and through impregnation, dehydration, pre-baking, ironing, and baking, the knitted T-shirts obtained have excellent anti-shrinkage and anti-wrinkle effects. The production process is long, the cost is high, and the front barrel and seam of the garment are wrinkled to varying degrees.

The above two methods have their own obvious advantages and disadvantages, but they cannot achieve a good balance in terms of anti-shrinkage and anti-wrinkle performance, production cost and garment appearance.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a washing-resistant and shrink-resistant knitted garment and a preparation method thereof; spherical.

In order to achieve the above purpose, the present invention provides a method for preparing a washable and shrink-resistant knitted garment, which comprises the following steps:

Scouring, dyeing and enzymatic treatment of knitted fabrics;

Padding the knitted fabric with a resin finishing solution to control the rolling ratio of 50%-100%;

drying the knitted fabric on a setting machine, the drying temperature is controlled to be 50-130 ° C, and the drying time is 1-10 min;

making the knitted fabric into a garment;

Positioning ironing and baking are performed on the ready-made garments to obtain washable and shrink-resistant knitted garments.

In the above method, preferably, after the end of the enzymatic treatment and before the start of the padding resin finishing solution, the method further includes the steps of opening the width, rolling water and drying the knitted fabric.

In the above method, preferably, the positioning ironing includes the following processes:

According to the final size of the garment (different garments have different size requirements), draw a positioning frame of the same size on the ironing table (as shown in Figure 1); Position and iron until all parts of the garment are flat and wrinkle-free, and at the same time ensure that the size of the main part of the garment is consistent with the corresponding size on the positioning frame, or, the size of the main part of the garment is smaller than the corresponding size on the positioning frame The value is (0cm, 1.5cm); wherein, the main parts include shirt length and bust circumference; more preferably, the main parts also include foot circumference. Taking the length of the shirt as an example, when positioning and ironing, make sure that the length of the ready-to-wear shirt is the same as the size of the shirt on the positioning frame, or the length of the ready-made shirt is smaller than the shirt on the positioning frame. The value of the long size is in the range of (0cm, 1.5cm); the same is true for the bust.

Through in-depth research, the present invention finds that conventional ironing uses a steam iron, blowing or pressing, and the ironing process only focuses on ironing the garment, and does not correct the size of the garment during the ironing process. Due to the good elasticity and loose structure of the knitted fabric itself, conventional steam ironing will cause the length of the shirt and the bust to be elongated to a certain extent, especially for the pique fabric with many tucks, the length of the shirt and the bust will usually be ironed longer than 2cm. This "overstretching" is extremely detrimental to the dimensional control and shrinkage results of knitted garments. Using the positioning ironing in the present invention not only makes all parts of the garment smooth and wrinkle-free, but also ensures that the size of each main part of the garment falls within the range of the corresponding size (-1.5cm, 0cm) on the positioning frame, effectively The "overstretching" of ordinary ironing is avoided, and the negative effect of "overstretching" on shrinkage is reduced.

In the above method, preferably, the baking temperature is 100-180° C., and the baking time is 1-10 min; more preferably, a tunnel-type flat wire dryer is used for baking.

In the traditional production process, the conventionally ironed clothes are hung on the hanger, and then enter the continuous or batch baking oven for baking, and finally cool, iron, and package. There are differences in shrinkage rate, plus the long production process of ready-made garments without ironing, and the processes affecting the size of garments include pre-baking, ironing, baking and other processes. The size of clothes produced by traditional knitted garments without ironing method fluctuates greatly. , and it is difficult to correct the size through the final ironing. In mass production, the qualified rate of garment size is generally about 80%, and in some cases, it is even lower than 60%. In the technical scheme provided by the present invention, after the garment is positioned and ironed, the garment is flattened in a tunnel-type flat wire dryer for baking, so as to retain the size and appearance effect after positioning and ironing to the greatest extent. The ready-made garments can obtain excellent shrinkage effect, and the size qualification rate of the ready-made garments in mass production has been greatly improved.

In the above method, preferably, in terms of the volume of the resin finishing solution, the raw material composition includes 5-200g/L of resin crosslinking agent, 1-50g/L of catalyst, 5-100g/L of softener and 1-100g/L of penetrant. -5g/L; more preferably, the resin finishing liquid further includes an anti-pinhole agent, and the concentration of the anti-pinhole agent is 5-20g/L; further preferably, based on the volume of the resin finishing liquid, Its raw material composition includes resin crosslinking agent 30-100g/L, catalyst 6-20g/L, softener 20-70g/L and penetrant 1-3g/L.

In the above method, preferably, the resin cross-linking agent includes one or a combination of N-methylolamide-based cross-linking agent and polycarboxylic acid-based cross-linking agent, but is not limited thereto. The resin cross-linking agent provided by the invention can endow the garment with excellent shrink-proof performance, and can covalently cross-link with the hydroxyl groups on the cellulose fibers, form a three-dimensional network structure in the amorphous region of the cellulose fibers, and connect the adjacent cellulose fibers. The molecular chains of the fiber are connected to each other, thus limiting the relative displacement between the two molecular chains, making the clothing have no-iron performance; in addition, the resin finishing also reduces the swelling of the fiber, so that it cannot swell greatly in water, so that the The garment is shrink-resistant.

Needle hole mainly refers to the phenomenon that during the sewing process of knitwear, when the machine needle is running at high speed, the loop of the fabric is punctured, the yarn is broken, the stitch hole is enlarged, the loop is separated, and the hole appears in the suture. Under the action of external force, these small holes are easy to expand, which leads to the decrease of seam fastness of products and seriously affects the appearance quality of garments. The resin finishing liquid provided by the invention can effectively avoid the problem that the needle hole on the fabric is enlarged under the action of external force, and the fastness and appearance are affected.

In the above method, preferably, the catalyst is one or a combination of metal salts and phosphates, such as, but not limited to, MgCl ₂ . The catalyst provided by the invention can accelerate the reaction between the resin crosslinking agent and the cellulose fibers.

In the above method, preferably, the strong protective agent includes a polyethylene strong protective agent, but is not limited thereto. The use of the strong protective agent provided by the invention can increase the lubricating effect between the yarns, reduce the mutual friction coefficient, improve the sewability during garment making, and improve the bursting strength of the fabric to a certain extent.

In the above method, preferably, the softener includes a silicone-based softener and/or a fatty acid amide-based softener, but is not limited thereto. The softener provided by the invention can improve the hand feeling of clothing fabrics, and can also improve the bursting strength and sewability of the fabrics.

In the above method, preferably, the penetrant includes a polyoxyethylene ether penetrant, but is not limited thereto. The penetrant provided by the invention can promote the full absorption of the finishing liquid by the cellulose fibers, and improve the physical or chemical bonding effect of the finishing liquid and the cellulose fibers.

In the above method, preferably, the raw material composition of the resin finishing solution further includes a formaldehyde scavenger; more preferably, the concentration of the formaldehyde scavenger is 1-20 g/L. The formaldehyde scavenger provided by the invention can be combined with the free formaldehyde produced by the incomplete reaction of the resin, thereby reducing the risk of excessive formaldehyde in clothing.

In the above method, preferably, the enzyme treatment includes the following process: according to the liquor ratio of knitted fabric: enzyme treatment solution=1:(6-40), the knitting is arranged in the enzyme treatment solution, and at 40 Treat at -70°C for 30-90min; wherein, the enzyme treatment solution contains 0.3-3g/L cellulase, 0.3-1.0g/L acetic acid and 0.3-1.0g/L sodium acetate; more preferably, the Cellulases include acid cellulases or neutral cellulases.

In the above method, preferably, when the knitted fabric is made into a garment, a non-woven hot-melt adhesive interlining is used as the lining of the garment (“Park” refers to the inner lining of the garment, such as the inside of the collar of the garment, the bag cover lining, etc.), the shrinkage rate of control should be consistent with the shrinkage rate of the main body of the garment; at the same time, thread with low shrinkage rate and high strength is used as sewing thread, preferably polyester PP thread, polyester-coated polyester core-spun thread and nylon thread one or a combination of several. The PP thread is made of polyester raw material and has the performance characteristics of high strength and low elongation.

In the above method, preferably, when the garment is made, the fabric of the leading portion of the garment is one or a combination of flat rib fabric, rib fabric and jacquard fabric. Make sure the fabric hairiness in the leader area is clean when using it.

In the above method, preferably, the knitted fabric is a 100% cellulose fiber fabric, or a fabric made of cellulose fiber and other fibers; more preferably, the cellulose fiber includes cotton, viscose and tencel One or a combination of several; the other fibers include polyester and/or nylon, but are not limited thereto; for example, the knitted fabric may be an interwoven or blended fabric of cellulose fibers and polyester and/or nylon.

The present invention also provides a washable and shrink-resistant knitted garment prepared by the above method, the knitted garment shrinks within ±5%×±5% (AATCC 150) after 5 washings, and after 20 washings The flatness of the cloth surface after water is ≥4 (AATCC 143), the color difference is ≥4 (AATCC gray scale), and the anti-pilling of the cloth body and leader is ≥4 (ASTMA3512). Anti-pilling effect.

Beneficial effects of the present invention:

1) The technical solution provided by the present invention adopts the method of positioning ironing, which not only makes each part of the garment smooth and wrinkle-free, but also ensures that the size of each main part of the garment falls within the interval of the positioning frame [-1.5cm-0cm], effectively It avoids the "over-stretching" of ordinary ironing, and reduces the negative impact of "over-stretching" on shrinkage. Combined with the subsequent flat-screen baking method, the garment finally obtains the ideal washable and shrink-proof effect.

2) The knitted garment prepared by the technical scheme provided by the invention can reach the following technical indicators:

Shrinkage: The shrinkage of knitted garments after 5 washings is within ±5%*±5% (AATCC 150);

Flatness of the cloth surface: After 20 washings, the flatness of the garment surface is ≥4 (AATCC 143);

Color change: The color difference of the cloth surface of the garment before washing and after 20 washings is greater than or equal to 4 (AATCC gray scale);

Pilling resistance: After 20 washings, the anti-pilling resistance of the garment body and leader is ≥4 (ASTM A3512);

Formaldehyde content: <75ppm (GB-T 2912.1);

Bursting Strength: >60psi (ASTM D 3786).

Description of drawings

Figure 1 is a schematic diagram of positioning ironing.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solutions of the present invention are now described in detail below, but should not be construed as limiting the scope of implementation of the present invention.

Example 1

This embodiment provides a preparation method of a washable and shrink-resistant knitted garment.

The knitted fabric in this embodiment is 40S×2 pure cotton single-sided piqué.

1) Pretreatment: scouring, dyeing and biological enzyme treatment of the knitted fabric; wherein, the biological enzyme treatment includes the following processes:

Prepare an enzyme treatment solution, based on the total volume, the enzyme treatment solution includes 1.5g/L cellulase, 0.5g/L acetic acid and 0.5g/L sodium acetate;

The knitting arrangement was placed in the enzyme treatment solution and treated at 55°C for 45 min.

2) Padding resin finishing solution: padding the above-mentioned knitted fabric with resin finishing solution (the raw material composition of this resin finishing solution is shown in Table 1), and the control rolling ratio is 60%;

Table 1

component name Dosage manufacturer softener JSS 70g/L Momentive Chemical Modified 2D resin PCLN 100g/L Argon Chemical Co., Ltd. catalyst MgCl₂ 20g/L Guangzhou Fuzhao Trading Co., Ltd. Penetrant JFC 1g/L Dongguan Jiahong Silicone Technology Co., Ltd. Anti-needle hole agent RUCO-LUB 20g/L Rudolph Chemicals

3) Drying at low temperature: Dry the knitted fabric on a setting machine at a drying temperature of 90°C and a drying time of 4 minutes.

4) Garment production: the above-mentioned dried knitted fabric is made into a short-sleeved T-shirt.

5) Positioning and ironing: draw a positioning frame on the ironing table (as shown in Figure 1) according to the requirements of the order making (that is, the size of the ready-made garment); when ironing, according to the size of the drawn positioning frame, a steam iron is used for the ready-made garment. Carry out positioning ironing, iron each part of the ready-made garment without wrinkles, and after ironing, the shirt length and bust size of the ready-made garment are 1.5cm shorter than the corresponding size of the positioning frame (that is, the shirt length of the ready-made garment is shorter than the shirt length size on the positioning frame. 1.5cm; the same bust size for ready-to-wear).

6) baking: the garment after the above-mentioned positioning and ironing is laid flat on the tunnel-type flat mesh baking machine and baked, and the clothes are required to be flatly spread on the mesh belt of the baking machine, and the baking temperature is 150 ° C, and the baking time is 150 ° C. 3 minutes; when the clothes come out from the end of the baking machine, lay them flat, and after the clothes are cooled to room temperature, fold and pack the clothes to obtain a washable and shrink-proof knitted short-sleeved T-shirt.

Example 2

This embodiment provides a preparation method of a washable and shrink-resistant knitted garment.

The knitted fabric in this embodiment is 40S/1 pure cotton wool fabric.

1) Pretreatment: the same as in Example 1.

2) Padding resin finishing liquid: The raw material composition of the resin finishing liquid in this example is shown in Table 2, and other operations are the same as those in Example 1.

Table 2

component name Dosage manufacturer softener JSS 60g/L Momentive Chemical Modified 2D resin PCLN 80g/L Argon Chemical Co., Ltd. catalyst MgCl₂ 16g/L Guangzhou Fuzhao Trading Co., Ltd. Penetrant JFC 1g/L Dongguan Jiahong Silicone Technology Co., Ltd. Anti-needle hole agent RUCO-LUB 10g/L Rudolph Chemicals

3) low temperature drying: control drying temperature is 100 ℃, time is 3min, and other operations are the same as in Example 1.

4) Garment production: The above knitted fabric is made into a knitted T-shirt.

5) Positioning and ironing: After the control ironing, the shirt length and bust size of the ready-made garment are 1.0 cm shorter than the corresponding size of the positioning frame, and the remaining operations are the same as in Example 1.

6) Baking: control the baking temperature to be 140° C., and the baking time to be 4 minutes, and other operations are the same as those in Example 1; a washable and shrink-resistant knitted T-shirt is obtained.

Note: the operation methods not described in detail in this embodiment are the same as those in embodiment 1.

Example 3

This embodiment provides a preparation method of a washable and shrink-resistant knitted garment.

The knitted fabric in this embodiment is 20S/1 pure cotton plain fabric.

1) Pretreatment: the same as in Example 1.

2) Padding resin finishing liquid: the raw material composition of the resin finishing liquid in this embodiment includes: modified 2D resin 90g/L, catalyst 18g/L, penetrant 1g/L, softener 60g/L, anti-needle hole agent 15g /L, and the rest are water; the rest are the same as in Example 1.

3) low temperature drying: control drying temperature is 100 DEG C, drying time is 3min, and the rest are the same as in Example 1.

4) Garment production: The above knitted fabric is made into a knitted T-shirt.

5) Positioning and ironing: After the control ironing, the shirt length and bust size of the ready-made garment are 0.5 cm shorter than the corresponding size of the positioning frame, and the remaining operations are the same as those in Example 1.

6) Baking: control the baking temperature to be 130° C., and the baking time to be 5 minutes, and other operations are the same as in Example 1; a washable shrink-proof knitted round neck T-shirt is obtained.

The operation methods not described in detail in this embodiment are the same as those in Embodiment 1.

Performance tests were performed on the garments provided in Examples 1, 2 and 3, and the test results are shown in Table 3.

table 3

It can be seen from the above test results that the knitted garment obtained by the preparation method of the present invention can reach the technical index of the non-iron and shrink-proof knitted garment.

Comparative Example 1

This comparative example provides a knitted garment.

The preparation process of the knitted garment provided by this comparative example is the same as that of Example 1, except that in step (5), positioning ironing is not adopted, but ordinary ironing is adopted (ordinary ironing refers to conventional steam ironing, and the ironing process is only the The garment is ironed flat, and the dimensions of the garment are not corrected during the ironing process). After ironing, the garment length and bust size are 2.0cm longer than before ironing.

Comparative Example 2

This comparative example provides a knitted garment.

The preparation process of the knitted garment provided by this comparative example includes the following steps:

Weaving 40S×2 pure cotton yarn into single-puck knitted fabric, and scouring, dyeing, dehydrating, opening and drying the grey fabric;

The cloth is subjected to resin shaping processing on the shaping machine, wherein the amount of resin is 60g/L, the vehicle speed is 20m/min, and the temperature is 170°C;

A knitted short-sleeved T-shirt is made from the resin-shaped knitted fabric.

Comparative Example 3

This comparative example provides a knitted garment.

The preparation process of the knitted garment provided by this comparative example includes the following steps:

1) Garment preparation: 40S×2 pure cotton single-sided piqué (SK PIQUE) with a clean cloth surface and a pH value of 6.8 is made into a garment.

2) Spraying: It is carried out on an automatic spraying pre-drying machine, and the non-iron finishing liquid is evenly sprayed on the garment to control the liquid carrying rate of the garment to 90%; wherein, in terms of mass percentage, the raw material of the non-iron finishing liquid is The composition includes: 10% base resin (in terms of the volume of the anti-scalding liquid, the amount of base resin is equivalent to 100g/L), 2.2% catalyst (equivalent to 22g/L), 3.4% reinforcing agent (equivalent to 34g/L) ), 3% softener (equivalent to 30g/L).

3) Pre-baking: pre-bake at 80°C until the garment is dried to a liquid rate of 20%;

4) Ironing: iron the pre-baked garment and hang it on a wooden hanger;

5) Baking: the hanging clothes are placed in a chain baking oven for baking, the baking temperature is 150°C, and the baking time is 3 min. After baking the clothes out of the box, hang them on a hanger for 24 hours, and then fold and pack them. get product.

The garments provided in Example 1 and Comparative Examples 1-3 were tested for performance, and the test results are shown in Table 4.

Table 4

It can be seen from the above production process and comparative test results,

(1) Compared with Comparative Example 1, the shrinkage of the garment produced in Example 1 is smaller, indicating that the positioning ironing adopted in the patent of the present invention has an improving effect on the shrinkage.

(2) Compared with Comparative Example 2, Example 1 has better properties such as shrinkage resistance, colorfastness, appearance flatness, and anti-pilling properties;

(3) Example 1 and Comparative Example 3 have similar anti-shrinkage, anti-fading, fabric appearance after washing, and anti-pilling, but the production process of the former is simpler, and the appearance of the garment seam is better;

(4) as can be seen from Example 1 and Comparative Example 3, the fabric is dried to make ready-made garments, not only the production process is short, the shrinkage of the ready-made garments is small, and the appearance of the cloth surface and the appearance of the bone position can all reach more than grade 3.5; The fabric is made into ready-made garments and then padding the finishing solution, the production process is long, and the appearance of the bone position is poor.

Claims (14)

1. A method for making a wash-durable, shrink-resistant knit garment, comprising the steps of:

boiling, dyeing and enzyme treating the knitted fabric;

padding the knitted fabric into resin finishing liquid, and controlling the padding liquid rate to be 50-100%;

drying the knitted fabric on a setting machine, wherein the drying temperature is controlled to be 50-130 ℃, and the drying time is 1-10 min;

making the knitted fabric into a garment;

positioning and ironing the ready-made clothes, flatly laying the ready-made clothes on a tunnel type flat net dryer for baking to obtain washable and shrink-proof knitted clothes;

wherein the localized ironing comprises the following processes:

drawing a positioning frame with the same size on an ironing table according to the final size required by the ready-made clothes;

according to the size of the positioning frame, a steam iron is adopted to position and iron the ready-made clothes until all parts of the ready-made clothes are flat and have no wrinkles, and meanwhile, the size of the main part of the ready-made clothes is ensured to be consistent with the corresponding size on the positioning frame, or the size of the main part of the ready-made clothes is smaller than the corresponding size on the positioning frame, and the value is 0cm to 1.5 cm; wherein, the main parts comprise a shirt length and a chest circumference.

2. The method as claimed in claim 1, wherein the baking temperature is 100-180 ℃ and the baking time is 1-10 min.

3. The method according to claim 1, wherein the raw material composition comprises 5-200g/L of resin cross-linking agent, 1-50g/L of catalyst, 5-100g/L of softening agent and 1-5g/L of penetrating agent based on the volume of the resin finishing liquid.

4. The method of claim 3, wherein the resin finish further comprises an anti-pin-holing agent at a concentration of 5-20 g/L.

5. The method of claim 3, wherein the resin crosslinker comprises one or more of N-methylolamide crosslinkers and polycarboxylic acid crosslinkers.

6. The method of claim 1, wherein the raw material composition of the resin finish further comprises a formaldehyde scavenger.

7. The method of claim 6, wherein the concentration of the formaldehyde scavenger is 1-20 g/L.

8. The method of claim 1, wherein the enzymatic treatment comprises the process of:

arranging the knitting in enzyme treatment liquid, and treating at 40-70 deg.C for 30-90 min; wherein the enzyme treatment liquid comprises 0.3-3g/L cellulase, 0.3-1.0g/L acetic acid and 0.3-1.0g/L sodium acetate in terms of total volume.

9. The method of claim 8, wherein the cellulase enzymes comprise an acid cellulase or a neutral cellulase.

10. The method according to claim 1, wherein when the knitted fabric is made into a garment, the nonwoven hot melt adhesive lining cloth is used as the fabric of the garment, and the shrinkage rate of the control fabric is consistent with that of the main body cloth of the garment; meanwhile, one or a combination of more of polyester PP thread, polyester core-spun yarn and nylon thread is used as the sewing thread.

11. The method as claimed in claim 1, wherein, when the garment is made, the fabric of the collar and sleeve part of the garment is one or more of rib fabric and jacquard fabric.

12. The method of claim 11, wherein the rib fabric comprises a flat machine rib fabric.

13. The method of claim 1, wherein the knitted fabric is a 100% cellulosic fiber fabric, or a fabric of cellulosic fibers with other fibers.

14. The method of claim 13, wherein the cellulose fibers comprise one or a combination of cotton, viscose and lyocell; the other fibers comprise terylene and/or chinlon.

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