Machine-washable non-ironing linen fabric, clothes and manufacturing method

By using high-quality linen hydrocarbon-free and machine-washable linen fabrics, and using a post-organization process of mercerizing-liquid ammonia-shaped-pre-shrinkage, the problem of wrinkle and rough feel of linen clothing is solved, achieving the soft, comfortable and iron-free effect of the fabric.

CN119571516AActive Publication Date: 2025-03-07GOLDLION (CHINA) LTD +1
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202411706307.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-07
Estimated Expiration
2044-11-26

AI Technical Summary

Technical Problem

Current linen clothing is wrinkled, rough, poor elasticity, and difficult to maintain its shape, affecting its appearance and wear comfort.

Method used

The iron-free and machine-washable linen fabric is made of more than 90% of all linen raw materials. By strictly controlling the shrinkage, tear strength and cracking degree of the fabric, combined with the post-organization process of merceration-liquid ammonia-shaped-pre-shrinkage, the softness and wrinkle resistance of the fabric are improved.

Benefits of technology

It achieves the effect of linen fabrics that are not easy to deform or decolorize when washed, are soft and comfortable, and have good iron-free effect. It is suitable for machine-washable and iron-free finished clothing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119571516A_ABST
    Figure CN119571516A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of garment processing, and particularly discloses a machine-washable non-ironing flax fabric, garment and a manufacturing method, the raw material of the flax fabric adopts more than 90% of flax, the shrinkage rate of warp and weft is within 3%, the tearing strength is more than 20N, and the stitch slipping degree is controlled within 0.4 cm; according to the invention, the linen fabric can be ensured to have the characteristics of high moisture absorption, good moisture conductivity and good air permeability of linen, also has the advantages of no-ironing, easy finishing, softness, comfort, and difficult deformation or decoloration in water washing, is suitable for making machine-washable and non-ironing finished clothes, and has the advantages of simple structure, low cost and high practicability by adopting the machine-washable and non-ironing linen fabric matched with the non-ironing process. The non-ironing effect of a finished product reaches 3-3.5 levels, and the product can be naturally straight after multiple times of machine washing, is good in smoothness and does not need ironing. Performance tests show that the washing size change rate, the appearance flatness after washing and drying, the seam appearance after washing and drying and the pleat appearance after washing and drying all meet standard requirements, and the manufactured clothes are soft in hand feeling and good in comfort.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of clothing processing, and in particular to a machine-washable and iron-free linen fabric, clothing and a manufacturing method thereof. Background Art

[0002] Linen fabric is a cloth woven from flax fibers. It is one of the main fiber materials suitable for spring and summer clothes due to its good moisture absorption, fast moisture conduction and relatively thin diameter. It is not easy to feel stuffy after wearing, has antibacterial and cool characteristics, and is used to make spring and summer clothes. It is green and environmentally friendly and has received widespread attention in the market. Due to the high crystallization area of ​​flax fibers, clothes made of flax feel rough, dry and hard, and are easy to wrinkle. Especially for spring and summer thin clothes, they are easy to deform and wrinkle during wearing, and it is difficult to restore to their original state after deformation, which seriously affects their appearance and wearing comfort.

[0003] In order to solve the problem of the existing linen clothing being easy to wrinkle, the existing method is to improve the wrinkle resistance of the fabric during the manufacturing process, specifically using a resin finishing agent to post-treat the fabric, and then through the post-treatment process of low-temperature baking, high-temperature drying and pressing. This treatment process is modeled on the anti-wrinkle finishing process of cotton fabric. Because the structures of linen and cotton fibers are different, after finishing, the distribution of the covalent bonds cross-linked between linen and the finishing agent is uneven. Although the elasticity of the linen fiber has been improved, the recovery performance and strength of the linen fiber have not been improved. After two or more washings, the linen shirt is still easy to deform and wrinkle. In addition, linen fibers lack the natural curl of cotton or wool fibers. The linen clothing made by the existing method still has the problems of poor appearance and elasticity, easy wrinkling, difficult to handle, and poor comfort performance, which restricts the development of linen clothing, especially high-end linen clothing. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems of poor appearance and elasticity, easy wrinkling, difficult handling and poor comfort performance of linen clothing made by the existing method, and to provide a machine washable and iron-free linen fabric, clothing and a production method.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] Firstly, the present invention provides a machine washable and iron-free linen fabric, wherein the linen fabric raw material adopts more than 90% flax, the shrinkage rate of warp and weft is within 3%, the tear strength is more than 20N, and the degree of slippage is controlled within 0.4cm.

[0007] In the above technical scheme, more than 90% of pure flax raw materials are used to make the linen fabric that is free of ironing and machine washable, and the shrinkage rates of the linen fabric in the warp and weft directions are limited to within 3%, the tear strength is above 20N, and the degree of cracking is controlled within 0.4cm. Through the limitation of the above performance parameters, it can be ensured that the linen fabric has the characteristics of high moisture absorption, good moisture conductivity and good air permeability of linen itself, and at the same time has the advantages of free of ironing and easy finishing, soft and comfortable fabric, and not easy to deform or discolor after washing, and is suitable for machine washable and free of ironing finished clothing.

[0008] As a preferred embodiment of the present invention, the linen fabric raw material comprises more than 90% of flax and 0-10% of chemical fiber or cotton or regenerated fiber.

[0009] As a preferred solution of the present invention, the linen fabric material is 100% flax, woven by warp yarns and weft yarns, the warp yarns and weft yarns are single-strand yarns, and the yarn count specification is 8-20S.

[0010] As a more preferred embodiment of the present invention, the linen fabric yarn count is 9-single-ply yarn, 14-single-ply yarn or 17-single-ply yarn. Furthermore, the 9-single-ply yarn has a twist of 300 / m, the 14-single-ply yarn has a twist of 400 / m, and the 17-single-ply yarn has a twist of 460 / m.

[0011] A second aspect of the present invention provides a method for making a machine-washable and non-ironing linen fabric, comprising the following steps:

[0012] S1, preparing flax raw material into flax yarn, wherein the flax yarn is a single-ply yarn;

[0013] S2, weaving the flax yarn into a grey cloth by using a loom, wherein the grey cloth has a high-density warp and weft texture;

[0014] S3, sequentially performing singeing, deboiling, special bleaching, cold pad-batch dyeing, and re-dyeing on the grey cloth;

[0015] S4, post-finishing the grey cloth to obtain the linen fabric, the post-finishing process includes mercerizing-liquid ammonia-setting-preshrinking; in the mercerizing process, the alkali concentration is 12-24Be, the temperature is 20-30°C, and the time is 40-60s; in the liquid ammonia process, liquid ammonia treatment is performed at a temperature of -33±1°C, and the immersion time is 15-25s; in the setting process, the temperature is 130-150°C, and the time is within 1 minute.

[0016] In the above technical scheme, a method for making linen fabric is provided, wherein the linen is first made into a single yarn, and then a grey cloth is made by adopting high-density warp and weft. By strictly controlling the density of each yarn, the fabric obtained has better weaving tightness, so that the linen fabric has better slippage and tearing strength performance, and then the grey cloth is singed, deboiled, specially bleached, cold-rolled batch dyed, and re-dyed, and then the post-finishing mercerization-liquid ammonia-setting-preshrinkage is carried out. Through the cooperation of cold-rolled batch dyeing, mercerization, liquid ammonia treatment process, etc., the shortcomings of the linen fabric such as easy wrinkling, hand feel and shrinkage are improved, so that the fabric has the advantages of not being easily deformed or discolored after washing, better softness, and also has the advantages of no ironing, and is suitable for machine washable and no ironing finished garments.

[0017] As a preferred embodiment of the present invention, the raw material of the linen fabric is 100% flax, and the method for making the linen yarn includes: 100% flax as raw material → combing into long flax → humidifying and curing the combed flax → matching flax → manual stripping → matching → long flax pre-drawing → single yarn 1-4 drawing → long flax roving → roving bleaching → wet spinning spun yarn → spinning → drying → spun yarn color separation → winding → storage. Long flax pre-drawing is the drawing process in the long flax spinning system, which involves drawing and combining the combed flax strips through a drawing frame to make flax strips with relatively uniform strips and structure and straight and parallel fibers.

[0018] As a preferred embodiment of the present invention, in the weaving, 9 single-ply yarns are woven into linen fabric according to a density of 54*41, 14 single-ply yarns are woven into linen fabric according to a density of 64*52, and 17 single-ply yarns are woven into linen fabric according to a density of 64*52.

[0019] As a preferred embodiment of the present invention, during the singeing process of the grey cloth, the singeing machine speed is 90-120 m / min, a high firepower is used, the temperature reaches 800-1000° C., and the hairiness rating after singeing reaches level 4-5.

[0020] As a preferred embodiment of the present invention, the desizing is performed by wide temperature enzyme desizing, the product is passed through a steamer at a temperature of 35-70°C, and then washed with high temperature water at a temperature of 60-95°C.

[0021] As a preferred embodiment of the present invention, the special bleaching adopts hydrogen peroxide bleaching at a temperature of 90 to 100° C. for 1 to 2 hours.

[0022] As a preferred embodiment of the present invention, cold pad-batch dyeing is carried out at a temperature of 20 to 30° C. In addition to the majority of cellulose content, the chemical composition of flax fiber also contains a lot of non-fibrous substances such as pectin, hemicellulose, lignin, and fatty wax (collectively referred to as "pectin"), which are associated with cellulose and are dye-rejecting substances during the dyeing process. They are fully removed by cold pad-batch pretreatment to avoid whitening and uneven dyeing after dyeing, thereby ensuring dyeing uniformity.

[0023] As a preferred embodiment of the present invention, the re-dyeing process includes: semi-finished product dyeing → padding → rolling → wrapping with adhesive paper → rotating stacking → washing with water and soaping → drying. During the padding process, the ratio of various auxiliary agents and alkali agents is accurately controlled. The drying temperature of washing with water and soaping is 130-150°C and the time is within 1 minute.

[0024] As a preferred embodiment of the present invention, in the liquid ammonia process, the pH value of the linen fabric after liquid ammonia is 6.0-8.0, the alkali content is 0.06-0.075%, and the water absorption is within 20S.

[0025] As a preferred embodiment of the present invention, the thickness of the rubber blanket during the preshrinkage process is 54-66 mm, the speed of the equipment is 30-80 m / min, and the steam pressure of the drying drum is 0.2-0.5 MPa.

[0026] Another aspect of the present invention provides a machine washable and non-ironing linen garment, wherein the linen garment is made of the machine washable and non-ironing linen fabric.

[0027] As a preferred embodiment of the present invention, the clothing includes casual suits, casual shirts, casual coats, jackets, and trousers.

[0028] The present invention also provides a method for making machine-washable and non-ironing linen clothing, comprising the following steps:

[0029] A1. Cut and sew the above-mentioned machine-washable and non-ironing linen fabric;

[0030] A2, spraying the non-ironing finishing liquid, so that the liquid carrying rate of the linen clothing reaches 70-90%, and the finishing time is 10-40 minutes;

[0031] A3, pre-drying, the pre-drying temperature is controlled at 80-100°C, the time is 15-30 minutes, and the moisture content of the linen clothing after pre-drying is controlled at 20-30%;

[0032] A4, airing the entire linen garment for pre-ironing;

[0033] A5. Press the linen garment with a high temperature press at a temperature of 80 to 100° C. for 8 to 10 seconds.

[0034] A6, dehumidifying and drying the linen clothing at 105-130° C. for 5-10 minutes, and after completion, the moisture content of the linen clothing is 0-10%;

[0035] A7, performing quick freezing cold wind finishing on the linen clothing;

[0036] A8. After washing, finishing and drying, machine washable and iron-free linen clothing is obtained.

[0037] As a preferred embodiment of the present invention, the stitching during sewing is shrink-proof core-spun polyester thread, the shrinkage rate is controlled at 1% to 3%, the single thread breaking strength is not less than 720cn / 50cm, and the single thread skeleton strength is 30 to 50CN / cm.

[0038] In the above technical scheme, firstly sew the linen garment, spray the non-iron finishing liquid on the linen garment, adopt pre-drying, pre-ironing and pressing, then dehumidify and dry the linen garment, reduce the water content of the linen garment to 0-10% after low-temperature shaping, realize shaping of the linen garment, then use the non-iron quick freezing cold wind finishing equipment to finish, improve the non-iron effect, fully remove the non-iron finishing liquid remaining in the linen garment after washing, so that there will be no residue on the linen garment. In the whole production process, by controlling the non-iron process parameters, adopting machine-washable non-iron finishing linen fabric with non-iron process, the linen garment has the advantages of high hygroscopicity, good moisture conductivity and good air permeability of linen itself, and has the effect of machine washable, non-iron, soft and comfortable, high wearing comfort, not easy to produce wrinkles, so that the non-iron effect of the finished product reaches 3-3.5 levels, and has a qualified washing size change rate, can be naturally straightened after several machine washings, good flatness, and no ironing is required.

[0039] As a preferred embodiment of the present invention, in the method for making a machine-washable and non-ironing linen suit, the detailed steps of A1 are:

[0040] A11. Cut, sew and lining the linen fabric, and then make shoulder pads, front panels, darts and pockets. The lining is made of polyester fiber lining, and the shrinkage rate of the lining is within 2%. When making the front panel, the hanging surface and the front panel are sewn by flat sewing, and the large and small stoppers are reserved. The front panel has a stopper of 0.7-0.8 cm, and the hanging surface has a stopper of 0.3-0.4 cm.

[0041] A12, perform the pulling and pulling process, sew the hem, make the bottom edge, and close the shoulder seam; the pulling and pulling value is 0.4 to 1 cm;

[0042] A13. Re-lining and sewing welts on suits;

[0043] A14, re-hang the surface and turn the seam, then sew the hem, make the bottom edge, and close the shoulder seam;

[0044] A15, carry out collar and sleeve attaching, shoulder padding and buttonhole sewing;

[0045] A16. Iron the suit and then button it.

[0046] As a preferred embodiment of the present invention, in the method for making a machine-washable and iron-free linen shirt, an exposed tube design is used in the sewing process, which is lighter and thinner, and avoids the generation of drug stains on the edge of the tube during ironing, which is difficult to clean.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] 1. The present invention provides a machine-washable and non-ironing linen fabric, which is made of more than 90% of linen raw materials and is machine-washable and non-ironing. The linen fabric is limited to a warp and weft shrinkage of less than 3%, a tear strength of more than 20N, and a slippage degree of less than 0.4cm. By limiting the above performance parameters, it can be ensured that the linen fabric has the characteristics of high hygroscopicity, good moisture conductivity, and good air permeability of linen itself, and at the same time has the advantages of non-ironing and easy finishing, soft and comfortable fabric, and not easy to deform or discolor after washing, and is suitable for machine-washable and non-ironing finished garments. According to performance tests, the washing size change rate, seam slippage degree, breaking strength, tear strength, and pilling level of the linen fabric all meet the standard requirements.

[0049] 2. The present invention provides a method for preparing machine-washable and non-ironing linen fabrics. First, 100% flax is made into single-strand yarns, and then grey cloths are made by adopting high-density warp and weft. By strictly controlling the density of each yarn, the prepared fabrics have better weaving tightness, so that the linen fabrics have better slippage and tearing strength performance. Then, the grey cloths are singed, deboiled, specially bleached, cold-rolled batch dyed, and re-dyed, and then the post-finishing mercerization-liquid ammonia-setting-preshrinkage is carried out. Through the coordination of cold-rolled batch dyeing, mercerization, liquid ammonia treatment processes, etc., the shortcomings of the linen fabrics in terms of easy wrinkling, hand feeling and shrinkage are improved, so that the fabrics are not easily deformed or discolored after washing, have better softness, and have the advantages of non-ironing, and are suitable for machine-washable and non-ironing finished garments.

[0050] 3. The present invention provides machine-washable and non-ironing linen clothing and a method for making the same. By controlling the parameters of the non-ironing process and using machine-washable and non-ironing linen fabrics in combination with the non-ironing process, the linen clothing has the advantages of high moisture absorption, good moisture conductivity, and good air permeability of linen itself, and is machine-washable, non-ironing, soft and comfortable. It is highly comfortable to wear and not prone to wrinkles. The non-ironing effect of the finished product reaches 3 to 3.5 levels, and has a qualified washing size change rate. After several machine washes, it can be naturally straightened, has good flatness, and does not require ironing. According to performance tests, the washing size change rate of the linen clothing, the appearance flatness after washing and drying, the appearance of the seams after washing and drying, and the appearance of the pleats after washing and drying all meet the standard requirements, and the produced clothing feels soft to the touch and is very comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a real picture of the linen fabric made by the method of the present invention;

[0052] Figure 2 Performance test result diagram of linen fabric made by the method of the present invention;

[0053] Figure 3This is a performance test result diagram of the linen fabric of Comparative Example 1;

[0054] Figure 4 This is a performance test result diagram of the linen fabric of Comparative Example 2;

[0055] Figure 5 This is a performance test result diagram of the linen fabric of Comparative Example 3;

[0056] Figure 6 This is a real picture of a suit made by the method of the present invention;

[0057] Figure 7 This is a performance test result diagram of a suit made by the method of the present invention;

[0058] Figure 8 This is a real picture of a short-sleeved shirt made by the method of the present invention;

[0059] Fig. 9 This is a performance test result diagram of a short-sleeved shirt made by the method of the present invention;

[0060] Fig.10 This is a performance test result diagram of a long-sleeved shirt made by the method of the present invention;

[0061] Fig.11 This is a real picture of trousers made by the method of the present invention;

[0062] Fig.12 This is a performance test result diagram of trousers made by the method of the present invention; DETAILED DESCRIPTION

[0063] In order to more clearly describe the invention purpose, technical scheme and technical effect advantages in the specific implementation case of the present invention, the scheme in the specific embodiment will be described in detail in combination with the drawings of the specification of the present invention. The specific technical scheme involved in the following specific embodiments is only for a clear and complete description of the innovative technical scheme of the present invention. It is only a part of the specific implementation scheme that can be adopted by the present invention, not all embodiments, and should not be understood as a limitation on the innovative scheme of the present invention. Any scheme adopting the same inventive concept of the present invention should be included in the protection scope of the present invention.

[0064] Secondly, the description of the drawings in the specific embodiments of the present invention is only for the convenience of technical personnel to understand the solution of the present invention. The partial details in the drawings are for the convenience of clearly presenting the technical solution. It should not be considered that all technical features in the drawings must be included in the specific implementation cases, and the detailed features in the drawings should not be identified as additional limitations on the innovative technical solution of the present invention. The components in the various embodiments described and shown in the drawings can be combined and arranged according to different configurations, and these changes in combination and arrangement should be identified as part of the entire embodiment of the innovative solution of the present invention and included in the scope of protection of the present invention.

[0065] In summary, the schemes or descriptions presented in the specific embodiments and drawings of the present invention are not intended to limit the scope of protection claimed, but are merely selected embodiments / cases to help technicians understand the relevant innovative solutions. Based on these embodiments, all other equivalent or parallel embodiments obtained by those skilled in the art without creative work are within the scope of protection claimed by the present invention.

[0066] Example 1

[0067] This embodiment provides a machine washable and iron-free linen fabric, which is made of 100% linen fiber, selected high-quality French rain-dew linen, has high water absorption and good thermal conductivity, and has a sustainable retting process. The method for making the linen fabric includes the following steps:

[0068] S1, the flax raw material is made into flax yarn, and the flax yarn is a single-ply yarn; the method for making the flax yarn includes: raw flax → combing into long flax → combing into flax and humidifying and curing → flax blending → manual slivering → blending → long flax pre-combing → single yarn 1-4 drawing → long flax roving → roving bleaching → wet spinning spun yarn → spinning → drying → spun yarn color separation → winding → storage. The single-ply yarn is obtained by spinning, and the yarn is 9-count and the twist is 300 / m.

[0069] S2, flax yarn is woven into grey cloth using a loom, and the fabric structure of the grey cloth adopts high-density warp and weft; high-density looms are used in fabric weaving, specifically Toyota looms. In order to improve the shrinkage and slippage of the fabric, due to the high-density warp and weft in the fabric structure, weaving is very difficult and must be achieved with advanced looms. In weaving, 9 single-ply yarns are woven into grey cloth according to the density of 54*41.

[0070] S3, singeing, deboiling, special bleaching, cold pad-batch dyeing and re-dyeing of the grey cloth in sequence; during the singeing process of the grey cloth, the singeing speed is 90-120m / min, high firepower is used, the temperature reaches 800-1000℃, and the hairiness rating after singeing reaches 4-5 levels; deboiling adopts wide-temperature enzyme desizing, passes through a steam steamer at a temperature of 35-70℃, and then performs high-temperature water washing at a temperature of 60-95℃; special bleaching adopts hydrogen peroxide bleaching at a temperature of 90-100℃ for 1-2 hours; cold pad-batch dyeing is carried out at a temperature of 20-30℃, and cold pad-batch dyeing finishing adopts a complete set of cold pad-batch dyeing intelligent equipment, specifically using Huntsman high-end dyes, maintaining a constant temperature to obtain a uniform color effect. The re-dyeing process includes: semi-finished product dyeing → padding → rolling → wrapping with adhesive paper → rotating stacking → washing with water and soaping → drying. During the padding process, the ratio of various auxiliary agents and alkali agents is accurately controlled. The drying temperature of washing with water and soaping is 130-150℃, and the time is within 1 minute.

[0071] S4, post-finishing the grey cloth to obtain linen fabric, the post-finishing process includes mercerizing-liquid ammonia-setting-preshrinking; in the mercerizing process, the alkali concentration is 12-24Be, the temperature is 20-30°C, and the time is 40-60s; when the grey cloth is subjected to the liquid ammonia finishing process, the grey cloth is first pre-dried, and then immersed in liquid ammonia at -33±1°C for 20-25s to remove excess ammonia; in the setting process, the temperature is 130-150°C and the time is within 1 minute.

[0072] In the preparation and weaving, mercerization and liquid ammonia free ironing treatment processes are very important. Liquid ammonia is at an extremely low temperature of -33±1℃. After the flax fiber is treated with liquid ammonia, the ammonia molecules react with the hydroxyl groups in the cellulose molecules to form an easily decomposed cellulose ammonia complex. After steaming to remove the ammonia, ammonia-modified cellulose is obtained. The liquid ammonia finishing process makes the hemp fiber swell, shrink and shape, reduce the crystallinity, loosen the microstructure, rearrange the fiber molecules, and redistribute the internal stress, which not only makes the state of the fabric more stable, increases elasticity, and improves wrinkle resistance, but also obtains a lasting soft feel, eliminates itching, and its softness and fiber cohesion increase further improve the softness of the fabric. The pH value of the linen fabric after liquid ammonia is 6.0~8.0, the alkali content is 0.06~0.075%, and the water absorption is within 20S. The thickness of the rubber blanket during the preshrinking process is 54~66mm, the speed of the equipment is 30~80m / min, and the steam pressure of the drying drum is 0.2~0.5MPa. In some embodiments, after the fabric is mercerized and finished with liquid ammonia, it needs to enter the steamer, be cross-linked and wrinkle-free, and be washed to prevent the fabric from becoming too soft during the shaping process.

[0073] The actual picture of the linen fabric produced in the above embodiment 1 is as follows Figure 1, and the performance tests were carried out. The test method for the dimensional change rate after washing was GB / T 8629-2017, type A washing machine, program: 4G, hanging to dry; the test method for the seam slippage degree test was FZ / T 81007-2022, 5.4.8, load 100N; the test method for the breaking strength test was GB / T 3923.1-2013 strip method; the tear strength test method was GB / T 3917.2-2009 trouser shape method, and the pilling level test method was GB / T4802.1-2008 circular track hair, 10 times of fuzzing, 50 times of fuzzing, pressure 490cN, and the judgment was based on FZ / T 81007-2022 "Single and double-layer clothing". The quick-drying property was tested according to GB / T 21655.1-2023. The test results are shown in Tables 1 and 2 below. The performance test results are shown in Tables 1 and 2 below. Figure 2 It should be noted that Figure 2 Only the dimensional change after washing, seam slippage and tear strength data are shown.

[0074] Table 1 Performance test of linen fabric made in Example 1

[0075]

[0076] Table 2 Test results of linen fabric quick-drying property made in Example 1

[0077]

[0078] According to the above data, it can be seen that the washing size change rate, seam slippage degree, breaking strength, tear strength, and pilling grade of the linen fabric produced by the present invention all meet the standard requirements, and the absorption rate, evaporation rate, water absorption rate, and WICKING in the absorption speed and drying test all meet the standard requirements and have good performance. The present invention uses high-density weaving to control the slippage value of the fabric during the fabric preparation process, and liquid ammonia and post-finishing pre-shrinkage improve the feel and shrinkage of the fabric, so that the shrinkage of the linen fabric is within 3% of the warp and weft, the tear strength is above 20N, and the slippage is controlled within 0.4cm. The linen fabric produced in this way has the characteristics of high moisture absorption, good moisture conductivity, and good air permeability of linen itself, and at the same time has the advantages of easy ironing and easy finishing, soft and comfortable fabric, and not easy to deform or discolor after washing, and is suitable for the production of ironing and machine-washable linen clothing.

[0079] Example 2

[0080] The present embodiment provides a machine washable and iron-free linen fabric, the linen fabric is made of 100% linen fiber, the shrinkage of the linen fabric is within 3% in warp and weft, the tear strength is above 20N, and the slippage is controlled within 0.4cm. The preparation method of the linen fabric is similar to that of Example 1, except that in the process of making linen yarn in the present embodiment, the single yarn obtained by spinning is 14 strands with a twist of 400 / m, and correspondingly, in weaving, the 14 single strands are woven into a grey cloth according to a density of 64*52, and the process parameters of other steps are the same as those of Example 1.

[0081] The linen fabric prepared in the above Example 2 was tested according to the method of Example 1. The washing dimensional change rate, seam slippage degree, breaking strength, tear strength, and pilling level of the linen fabric all met the standard requirements.

[0082] Example 3

[0083] The present embodiment provides a machine washable and iron-free linen fabric, the linen fabric is made of 100% linen fiber, the shrinkage of the linen fabric is within 3% in warp and weft, the tear strength is above 20N, and the slippage is controlled within 0.4cm. The preparation method of the linen fabric is similar to that of Example 1, except that in the process of making linen yarn in the present embodiment, the single yarn obtained by spinning is 17 strands with a twist of 460 / m, and correspondingly, in weaving, the 17 strands of single yarn are woven into a grey cloth according to a density of 64*52, and the process parameters of other steps are the same as those of Example 1.

[0084] The linen fabric prepared in the above Example 3 was tested according to the method of Example 1. The washing dimensional change rate, seam slippage degree, breaking strength, tearing strength, and pilling level of the linen fabric all met the standard requirements.

[0085] Example 4

[0086] The present embodiment provides a machine washable and iron-free linen fabric, the linen fabric is woven with linen / spandex blended yarns as warp yarns and weft yarns respectively, the linen content in the blended yarns is 95%, and the spandex content is 5%. The preparation method of the linen fabric is similar to that of Example 1, except that in step S1, linen and spandex are used to make a single strand of linen / spandex blended yarn, and the process parameters of other steps are the same as those of Example 1.

[0087] The linen fabric prepared in the above Example 4 was tested according to the method of Example 1. The washing dimensional change rate, seam slippage degree, breaking strength, tear strength, and pilling level of the linen fabric all met the standard requirements.

[0088] Comparative Example 1

[0089] This comparative example provides a linen fabric, wherein the linen is made of 100% linen fiber, and the 17-count single-ply yarn prepared by the method of Example 3 is woven into a grey cloth at a density of 54*41, and the process parameters of other steps are the same as those of Example 1.

[0090] The linen fabric prepared in the above comparative example 1 was tested according to the method of example 1. The test results are shown in Table 2 and Figure 3 As shown:

[0091] Table 3 Performance test of linen fabric made in comparative example 1

[0092]

[0093] According to the data in Table 3 above, it can be seen that the washing dimensional change rate, seam slippage degree, breaking strength and tearing strength of linen fabric meet the standard requirements, but the pilling level does not meet the standard requirements. This is because when the density of the comparative linen fabric is large, the structure is relatively tight, and the friction resistance between the yarns is relatively large, which makes it difficult for the hairiness on the yarn surface to slide to the fabric surface to form fluff, so it is not easy to pilling and has good anti-pilling performance.

[0094] Comparative Example 2

[0095] This comparative example provides a linen fabric, wherein the linen is made of 100% linen fiber, 9 single-strand yarns are made by the method of Example 1, and the grey cloth is woven according to a density of 54*41. The difference from Example 1 is that this comparative example does not perform a liquid ammonia treatment step, and the process parameters of other steps are the same as those of Example 1.

[0096] The linen fabric prepared in the above comparative example 3 was tested according to the method of example 1. The test results are shown in Table 4 and Figure 4 As shown:

[0097] Table 4 Performance test of linen fabric made in comparative example 2

[0098]

[0099] According to the data in Table 4 above, it can be seen that the washing dimensional change rate, breaking strength and tearing strength of the linen fabric meet the standard requirements, but the seam slippage degree and pilling level do not meet the standard requirements, and the prepared fabric feels rough to the touch. This is because the comparative example lacks liquid ammonia treatment in post-finishing. The fabric treated with liquid ammonia is softer, causes less damage to the fiber, and the fabric will not become hard after multiple washings. It can also eliminate certain damage to the linen fiber caused by caustic soda mercerization treatment. Therefore, the linen fabric treated with mercerized liquid ammonia has better flexibility and anti-pilling performance.

[0100] Comparative Example 3

[0101] This comparative example provides a linen fabric, which is made of 100% linen fiber, and is made into 9-ply yarns by the method of Example 1, and woven into a grey cloth according to a density of 54*41. The difference from Example 1 is that the temperature in the shaping process after the liquid ammonia treatment in this comparative example is 150-160°C, and the time is within 1 minute. The process parameters of other steps are the same as those of Example 1. The linen fabric made in the above comparative example 3 is tested for the dimensional change rate after washing, the degree of seam slippage, and the tear strength according to the method of Example 1. The test results are shown in Tables 5 and 6. Figure 5 As shown:

[0102] Table 5 Performance test of linen fabric made in comparative example 3

[0103]

[0104] According to the data in Table 5 above, it can be seen that the washing dimensional change rate and tear strength of the linen fabric meet the standard requirements, but the degree of seam slippage does not meet the standard requirements. This is because the temperature of the comparative example is too high during the shaping process after the liquid ammonia treatment, reaching 160°C, causing certain damage to the linen fiber, so the prepared fabric is brittle and unqualified in terms of seam slippage.

[0105] Example 5

[0106] This embodiment provides a method for making a machine-washable and non-ironing linen suit, comprising the following steps:

[0107] A1, cutting and sewing the machine washable and non-ironing linen fabric of Example 2;

[0108] During cutting and sewing, machine washable and iron-free linen fabrics are used for cutting according to the paper pattern, and the fabric number of the cut pieces, the positions of the darts and pockets, and the knife position marks of the armholes and waists are checked;

[0109] Interlining: interlining is performed on the reverse placket and inner hanging surface, collar, pocket cover, back hem, cuffs, etc.; interlining conditions are: pressure of 4.0±0.2KG, time of 6-7S, pressing temperature of 146-148℃; interlining adopts machine washable and iron-free polyester fiber interlining, the shrinkage of interlining is within 2%, and the weight is 50g / m 2 The front piece and the hanging surface are directly glued to the foot. The lining is glued using an automatic lining machine, which is an Italian brand MARTIN.GROUP, with upper and lower heating plates, and fully automatic heating.

[0110] Shoulder pads are made by hand and cut into a semicircle with a radius of 13-14cm. The shoulder pads have 4 layers, the first layer is the lining, the second layer is sponge, the third layer is cotton felt, and the fourth layer is the lining. The second and third layers are sewn by hand or triangular needle machine, and then wrapped with strips around them;

[0111] Make the front panel, close the darts, and open the pockets: Make the front panel, sew the hanging surface and the front panel with a flat sewing machine, and keep the large and small stoppers. Leave a 0.7-0.8cm stopper on the front panel and a 0.3-0.4cm stopper on the hanging surface. Use a flat sewing machine to close the chest darts, sew the front waist darts (close the dart position by 0.5cm, sew 2-3 stitches past the dart tip, add a 1*1cm thin lining to the tip, tie a knot at the end of the thread, and leave a 0.8cm end of the thread), turn the darts to the side, sew the back seams, and close the side seams. Skilled sewing workers are required to follow the stoppers and cuts to make the stitches straight and smooth, keep the start and end thread ends firm and not drop the thread, leave 0.5cm for all stoppers, wrap the binding strips, and keep all stitches at 11-12 stitches per inch. The stoppers are treated to avoid hot sewing. With the above method, there is no exposed stopper, which is more neat;

[0112] Pull-in treatment: Use a special pull-in ironing machine to pull the front piece, back piece, sleeve piece and hanging surface, and use a special model press to return and shape. During operation, control the pull-in range value according to the model at the part that needs to be pulled;

[0113] Sewing the hem, making the bottom edge, and closing the shoulder seam: all the joints are sewn first, then hemmed, the sewing line is 11-12 stitches per inch, and the bottom edge is folded back and the flat sewing line is sewn; the shoulder seam is operated by a special machine, and the skilled sewing workers control the amount of sewing according to the fabric sections; the seam allowance is split to maintain a 0.5-0.8cm stop, and the stop is wrapped with a binding strip after the edge is hemmed, and a 0.5-0.8cm melt position is set;

[0114] Install the collar and sleeves: the collar is drawn according to the pattern, and the sewing worker sews accurately and smoothly according to the drawn lines and trims the stop. Then the ironing worker sews and irons the stop. Sew the body and the bottom collar, the front and the front collar, and trim the 0.3-0.4cm stop 1-2cm away from the collar tip to reverse the sharp corner. In the sleeve installation, the sleeve and the body are cut according to the pattern, and the skilled sewing worker checks the cut and stop point by point to see if there is any visible thread on the clamping ring. If there is, there is no melting position. If there is no visible thread, there is a 0.2-0.3cm melting position.

[0115] Hand-sewn shoulder pads, with a total of 6 fixing points, 5 of which are at the sleeve seam, and 1 at the top of the shoulder. The sleeve seam fixing points are evenly dispersed about 5 cm, and the height of each hand-sewn fixing point is 0.2 to 0.3 cm.

[0116] Buttonhole: Draw the position of the buttonhole according to the paper pattern, align it with the drawing position, and complete it according to the machine operation process;

[0117] Ironing and buttoning: the buttons are buttoned by a special Durkopp machine, with fully automatic buttoning and foot wrapping, 8 threads per hole, and hot-melt thread for foot wrapping;

[0118] During the above preparation process, the suit is made into a non-lining structure, all the seams are hemmed, the binding strips are sewn, the inner placket is ironed and turned, the shoulder cotton is hand-sewn, and the stitching is done with non-ironing thread. The shrinkage rate is controlled at 1% to 3%. Reducing the shrinkage rate and high temperature may affect the flatness of the fabric. Specifically, the thread used is 502 thread, a shrink-proof core-spun polyester thread, the single thread breaking strength is not less than 720cn / 50cm, and the single thread skeleton strength is 30 to 50CN / cm (i.e. 300 to 500g / cm).

[0119] A2. Spraying non-ironing finishing liquid: Prepare the non-ironing finishing liquid in proportion to the weight of the suits, put 30 to 50 suits into the non-ironing finishing cabinet, wash in the bidirectional rotating non-ironing finishing cabinet, rotate at 15 to 25 rpm, spray pressurized atomized finishing liquid onto the tumbling suits, the pressure is 0.5 to 1 MPA, so that the suit liquid rate reaches 75 to 80%, and the finishing time is 15 to 25 minutes;

[0120] A3, pre-drying, the pre-drying temperature is controlled at 90±2℃, the time is 20±2min, and the moisture content is controlled at 20-30% (70%-80% dry);

[0121] A4. Pre-ironing: Inflate the clothes as a whole and iron them flat so that the effect will be better and the efficiency will be higher when pressing.

[0122] A5. Finished product pressing and pre-setting; professional collar pressing machine, professional sleeve pressing machine, front pressing machine, back pressing machine, etc. Pressing time 8-10 seconds, temperature 85±2℃;

[0123] In some embodiments, ironing is also performed, that is, the pressed garments are used to make them flat, and wrinkles and uneven positions are ironed with an iron.

[0124] A6. Put on the three-dimensional human-shaped hanger: Put on the three-dimensional hanger specially used for ironing suits, and adjust the length of the hanger shoulder width to be 1-2cm longer than the shoulder width; set it in a high-temperature setting cabinet at 110±2℃ for 5-10 minutes, so that the suit is 90% to completely dry;

[0125] A7. Non-ironing quick freezing cold air finishing equipment: In the non-ironing quick freezing cold air finishing equipment, the temperature is rapidly reduced in a freezer at -5 to 0°C, and the clothes are blown with gentle wind for 6 to 12 minutes to improve the non-ironing feel.

[0126] A8. Washing and finishing: Wash gently with clean water for 8 to 10 minutes to improve the feel, remove the threads on the suit, and remove the unreacted auxiliaries, free formaldehyde, etc.; then dry the finished product at a temperature of 85±2℃ for 20 to 30 minutes until it is completely dry.

[0127] Example 5 The suit made is as follows Figure 6As shown, the performance test was carried out. The test method for the dimensional change rate after washing was GB / T 8629-2001A washing machine, program: 4A, tumble drying; the test method for the appearance flatness after washing and drying was GB / T 13769-2009A washing machine, program: 4A, tumble drying; the test method for the seam appearance after washing and drying was GB / T 13771-2009A washing machine, 5 washing and drying cycles, program: 4A, tumble drying; the test method for the pleat appearance (grade) after washing and drying was GB / T 13770-2009A washing machine, 5 washing and drying cycles, program: 4A, tumble drying. The judgment standard was GB / T 18863-2002 "Wrinkle-free Textiles", and the test results are shown in Table 6 and Figure 7 As shown:

[0128] Table 6 Performance test of suits made in Example 5

[0129]

[0130] From the results in the above table, it can be seen that the washing size change rate, appearance flatness after washing and drying, seam appearance after washing and drying, and pleat appearance after washing and drying of the suits made by the present invention all meet the standard requirements, and the suits made feel soft to the touch and very comfortable.

[0131] Example 6

[0132] This embodiment provides a method for making a machine-washable and non-ironing linen suit, which is different from embodiment 5 in that this embodiment uses the linen fabric made in embodiment 3 to make the suit, and the other step sequences and process parameters are the same as those in embodiment 5. The suit made in embodiment 6 is tested according to the method in embodiment 5, and the washing size change rate, appearance flatness after washing and drying, seam appearance after washing and drying, and pleat appearance after washing and drying of the suit all meet the standard requirements, and the suit feels soft to the touch and is very comfortable.

[0133] Example 7

[0134] This embodiment provides a method for making a machine-washable and non-ironing linen short-sleeved shirt, comprising the following steps:

[0135] A1. The machine-washable and non-ironing linen fabric of Example 2 is used, and the fabric is cut according to the short-sleeved shirt pattern during cutting and sewing, and the cut pieces are spliced ​​and sewn to obtain a semi-finished shirt; an open tube design is used during sewing, which is lighter and thinner, and avoids the occurrence of drug stains on the edge of the tube during non-ironing, which is difficult to clean.

[0136] A2. Spray the non-ironing finishing liquid; adjust the proportion of the non-ironing finishing liquid according to the weight of the shirts, put 40 to 60 shirts into the non-ironing finishing cabinet, wash them in the bidirectional rotating non-ironing finishing cabinet, the speed is 20 to 25 rpm, and the pressurized atomized finishing liquid is sprayed on the tumbling shirts at a pressure of 0.5 to 1 MPA, so that the shirt liquid rate reaches 80 to 85%, and the finishing time is 20 to 30 minutes;

[0137] A3. Pre-drying: The pre-drying temperature is controlled at 95±2℃, the time is 15-25min, and the moisture content is controlled at 20-30%;

[0138] A4. Pre-ironing: Inflate the clothes as a whole and iron them flat;

[0139] A5. The finished product is pressed and pre-shaped using a professional collar pressing machine, professional sleeve pressing machine, etc. The pressing time is 8 to 10 seconds, and the temperature is 90±2℃. During the pressing process, the shirts that have been pressed are used to make them flat, and the wrinkles and uneven areas are ironed.

[0140] A6. Put the shirt on the three-dimensional human-shaped hanger and set it in a high-temperature setting cabinet at 115±2℃ for 5 to 10 minutes, until the shirt is 90% to completely dry;

[0141] A7. Non-ironing quick freezing cold air finishing equipment: In the non-ironing quick freezing cold air finishing equipment, the temperature is rapidly reduced in a freezer at -5 to 0°C, and the clothes are blown with gentle wind for 6 to 12 minutes to improve the non-ironing feel.

[0142] A8. Washing and finishing: Wash gently with clean water for 8 to 10 minutes to improve the feel, remove the threads on the shirt, and remove the unreacted auxiliaries, free formaldehyde, etc.; then dry the finished product at a low-temperature drying temperature of 90±2℃ for 20 to 30 minutes until it is completely dry.

[0143] The short-sleeved shirt made in Example 7 is as follows Figure 8 As shown, the performance test was carried out according to the method of Example 5, and the test results are shown in Table 7 and Fig. 9 As shown:

[0144] Table 7 Performance test of short-sleeved shirt made in Example 7

[0145]

[0146]

[0147] From the results in the above table, it can be seen that the washing size change rate, appearance flatness after washing and drying, seam appearance after washing and drying, and pleat appearance after washing and drying of the short-sleeved shirts made by the present invention all meet the standard requirements, and the short-sleeved shirts made by the present invention feel soft and comfortable.

[0148] Example 8

[0149] This embodiment provides a method for making a machine-washable and non-ironing linen long-sleeved shirt. The difference from Example 7 is that this embodiment uses the linen fabric made in Example 3 to prepare the long-sleeved shirt. The other step sequence and process parameters are the same as those in Example 7. The long-sleeved shirt made in Example 8 is tested according to the method of Example 5. The test results are shown in Tables 8 and 9. Fig.10 shown.

[0150] Table 8 Performance test of long-sleeved shirt made in Example 8

[0151]

[0152] From the data in the table, we can see that the washing size change rate of the long-sleeved shirt, the appearance flatness after washing and drying, the seam appearance after washing and drying, and the pleat appearance after washing and drying all meet the standard requirements, and the produced long-sleeved shirt feels soft and comfortable.

[0153] Example 9

[0154] This embodiment provides a method for making machine-washable and non-ironing linen trousers, comprising the following steps:

[0155] A1. The machine-washable and non-ironing linen fabric of Example 1 is used, and the trousers are cut according to the trouser pattern during cutting and sewing, and the cut pieces are spliced ​​and sewn, and the sewing is carried out using the existing trouser sewing method to obtain semi-finished trousers;

[0156] A2. Spray the non-ironing finishing liquid; adjust the proportion of the non-ironing finishing liquid according to the weight of the shirts, put 40 to 60 pairs of trousers into the non-ironing finishing cabinet, wash them in a two-way rotating non-ironing finishing cabinet, with a rotation speed of 5 to 20 rpm, and spray the pressurized atomized finishing liquid on the tumbling trousers at a pressure of 0.5 to 1 MPA, so that the trousers have a liquid rate of 80 to 90%, and the finishing time is 15 to 20 minutes;

[0157] A3. Pre-drying: The pre-drying temperature is controlled at 90±2℃, the time is 15-30min, and the moisture content is controlled at 20-30%;

[0158] A4. Pre-ironing: Inflate the pants as a whole and iron them flat;

[0159] A5. For the pre-pressing and shaping of finished products, the pressing time is 8 to 10 seconds at a temperature of 95±2℃. For the ironing, the trousers that have been pressed are used to make them flat, and any wrinkles or uneven areas are ironed.

[0160] A6. Put the trousers on the three-dimensional human-shaped hanger and set them in a high-temperature setting cabinet at 120±2℃ for 5 to 8 minutes, until the trousers are 90% to completely dry;

[0161] A7. Non-ironing quick freezing cold air finishing equipment: In the non-ironing quick freezing cold air finishing equipment, the temperature is rapidly reduced in a freezer at -5 to 0°C, and the clothes are blown with gentle wind for 6 to 12 minutes to improve the non-ironing feel.

[0162] A8. Washing and finishing: Wash gently with clean water for 8 to 10 minutes to improve the feel, remove the threads on the pants, and remove the unreacted additives, free formaldehyde, etc.; then dry the finished product at a low-temperature drying temperature of 90±2℃ for 20 to 30 minutes until it is completely dry.

[0163] The trousers made in Example 9 are as follows Fig.11 As shown, the performance test was carried out according to the method of Example 5, and the test results are shown in Table 9 and Fig.12 As shown:

[0164] Table 8 Performance test of the pants made in Example 8

[0165]

[0166] From the results in the above table, it can be seen that the trousers made by the present invention have a soft touch and are very comfortable to the touch, and the trousers have a soft feel and are very comfortable to the touch, and the trousers have a soft touch ...

[0167] For those skilled in the art, when understanding the solutions described in the specific embodiments of the present invention, they can refer to the conventional technical manuals in the field. At the same time, for the places where the above-mentioned terms appear, they can make appropriate understandings or adjustments for reference, and deduce the implementation of the same or similar technical solutions without paying any creative work.

[0168] The above embodiments describe only the basic principles, main features and / or advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the invention content of the specification only describe the principles or specific cases of the present invention. Without departing from the essence of the innovative idea of ​​the present invention, the innovative scheme of the present invention may be subject to various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention.

Claims

1. A machine washable and non-ironing linen fabric, characterized in that: The raw material of the linen fabric is more than 90% of linen, the shrinkage rate of warp and weft is within 3%, the tearing strength is more than 20N, and the degree of cracking is controlled within 0.4cm.

2. The machine washable and non-ironing linen fabric according to claim 1, characterized in that: The linen fabric material is 100% linen and is woven by warp yarns and weft yarns. The warp yarns and weft yarns are single-strand yarns with yarn count specifications ranging from 8 to 20S.

3. The machine washable and non-ironing linen fabric according to claim 1 or 2, characterized in that: The yarn count of the linen fabric is 9 single-ply yarn, 14 single-ply yarn or 17 single-ply yarn.

4. The machine washable and non-ironing linen fabric according to claim 3, characterized in that: The twist of 9-single-ply yarn is 300 / m, the twist of 14-single-ply yarn is 400 / m, and the twist of 17-single-ply yarn is 460 / m.

5. A method for making the machine washable and non-ironing linen fabric according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, preparing flax raw material into flax yarn, wherein the flax yarn is a single-ply yarn; S2, weaving the flax yarn into a grey cloth by using a loom, wherein the grey cloth has a high-density warp and weft texture; S3, sequentially performing singeing, deboiling, special bleaching, cold pad-batch dyeing, and re-dyeing on the grey cloth; S4, post-finishing the grey cloth to obtain the linen fabric, the post-finishing process includes mercerizing-liquid ammonia-setting-preshrinking; in the mercerizing process, the alkali concentration is 12-24Be, the temperature is 20-30°C, and the time is 40-60s; in the liquid ammonia process, liquid ammonia treatment is performed at a temperature of -33±1°C, and the immersion time is 15-25s; in the setting process, the temperature is 130-150°C, and the time is within 1 minute.

6. The method for making machine washable and non-ironing linen fabric according to claim 5, characterized in that: The raw material of the linen fabric is 100% flax, and the method for making the linen yarn includes: 100% flax as raw material→combing into long flax→humidifying and curing the combed flax→matching flax→manual stripping→grouping→long flax pre-drawing→single yarn 1-4 drawing→long flax roving→roving bleaching→wet spinning fine yarn→spinning→drying→fine yarn color separation→winding→warehousing.

7. The method for making machine washable and non-ironing linen fabric according to claim 5, characterized in that: During weaving, 9 single-ply yarns are woven into linen fabrics at a density of 54*41, 14 single-ply yarns are woven into linen fabrics at a density of 64*52, and 17 single-ply yarns are woven into linen fabrics at a density of 64*52.

8. The method for making machine washable and non-ironing linen fabric according to any one of claims 5 to 7, characterized in that: During the singeing process of grey cloth, the singeing machine speed is 90-120m / min, high firepower is used, the temperature reaches 800-1000℃, and the hairiness rating after singeing reaches 4-5 levels; Desizing is done by wide temperature enzyme desizing, steaming in a steamer at 35-70℃, and then washing with high temperature water at 60-95℃; Special bleaching uses hydrogen peroxide bleaching at a temperature of 90-100°C for 1-2 hours; Cold pad-batch dyeing is carried out at a temperature of 20 to 30°C; The re-dyeing process includes: semi-finished product dyeing → padding → rolling → plastic paper wrapping → rotating stacking → water washing and soap washing → drying. During the padding process, the ratio of various auxiliary agents and alkali agents is accurately controlled. The drying temperature of water washing and soap washing is 130-150℃, and the time is within 1 minute. In the liquid ammonia process, the pH value of the linen fabric after liquid ammonia is 6.0-8.0, the alkali content is 0.06-0.075%, and the water absorption is within 20S; During the preshrinking process, the thickness of the rubber blanket is 54-66 mm, the speed of the equipment is 30-80 m / min, and the steam pressure of the drying cylinder is 0.2-0.5 MPa.

9. A machine washable and non-ironing linen garment, characterized in that: The linen clothing is made of the machine-washable and non-ironing linen fabric according to any one of claims 1 to 4.

10. A method for making machine-washable and non-ironing linen clothing according to claim 9, characterized in that: The following steps are involved: A1. Cutting and sewing the machine washable and non-ironing linen fabric according to any one of claims 1 to 4; A2, spraying the non-ironing finishing liquid, so that the liquid carrying rate of the linen clothing reaches 70-90%, and the finishing time is 10-40 minutes; A3, pre-drying, the pre-drying temperature is controlled at 80-100°C, the time is 15-30 minutes, and the moisture content of the linen clothing after pre-drying is controlled at 20-30%; A4, airing the entire linen garment for pre-ironing; A5. Press the linen garment with a high temperature press at a temperature of 80 to 100° C. for 8 to 10 seconds. A6, dehumidifying and drying the linen clothing at 105-130° C. for 5-10 minutes, and after completion, the moisture content of the linen clothing is 0-10%; A7, performing quick freezing cold wind finishing on the linen clothing; A8. After washing, finishing and drying, machine-washable and iron-free linen clothing is obtained.

Citation Information

Patent Citations

  • Processing technology for improving easy-care performance of linen fabric

    CN111793987A

  • Manufacturing method of all-cotton high-yarn-count non-ironing clothes

    CN112981948A

  • Non-ironing garment with wrinkle effect and manufacturing method of non-ironing garment

    CN119563946A

  • Process for the treatment of fabrics containing cellulose fibres with liquid ammonia

    US3406006A