A machine-washable and wrinkle-free linen fabric, garment, and manufacturing method

Abstract

This invention belongs to the field of garment processing technology, specifically disclosing a machine-washable and wrinkle-free linen fabric, garments, and a manufacturing method. The linen fabric raw material uses more than 90% flax, with a shrinkage rate of less than 3% in both warp and weft, a tear strength of more than 20N, and a tear depth controlled within 0.4cm. This ensures that the linen fabric possesses the inherent characteristics of flax—high moisture absorption, good moisture wicking, and excellent breathability—while also offering the advantages of being wrinkle-free, easy to care for, soft and comfortable, and resistant to deformation or fading after washing. It is suitable for the production of machine-washable and wrinkle-free finished garments. By using machine-washable and wrinkle-free linen fabric in conjunction with a wrinkle-free process, the finished product achieves a wrinkle-free effect of 3-3.5. After several machine washes, it naturally straightens, maintains good flatness, and requires no ironing. Performance tests show that the dimensional change rate after washing, the flatness of the appearance 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. Furthermore, the finished garments have a soft feel and excellent comfort.

Description

Technical Field

[0001] This invention relates to the field of garment processing technology, and in particular to a machine-washable and wrinkle-free linen fabric, garment, and manufacturing method. Background Technology

[0002] Linen fabric is made from flax fibers. Due to its excellent moisture absorption and wicking properties, and relatively fine diameter, it is one of the main fiber materials suitable for spring and summer clothing. It is not stuffy and has antibacterial and cooling characteristics, making it ideal for spring and summer garments. Furthermore, it is environmentally friendly and has gained widespread attention in the market. However, because flax fibers have a high crystalline density, clothing made from linen feels rough, dry, and stiff, and wrinkles easily, especially lightweight spring and summer garments. These wrinkles and deformation are common during wear and difficult to restore to their original shape, severely affecting their appearance and wearing comfort.

[0003] To address the wrinkle-prone nature of existing linen garments, current methods involve enhancing the fabric's wrinkle resistance during manufacturing. Specifically, this involves post-treatment with resin finishing agents, followed by low-temperature baking, high-temperature drying, and pressing. This process mimics the wrinkle-resistant finishing techniques used for cotton fabrics. However, due to the structural differences between linen and cotton fibers, the distribution of covalent bonds between the linen and the finishing agent is uneven after treatment. While this improves the elasticity of the linen fibers, their recovery properties and strength remain unaffected. After two or more washes, linen shirts still easily deform and wrinkle. Furthermore, linen fibers lack the natural crimp of cotton or wool. Therefore, linen garments made using existing methods still suffer from poor appearance and elasticity, easy wrinkling, difficulty in handling, and poor comfort, hindering the development of linen garments, especially high-end linen garments. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems of poor appearance and elasticity, easy wrinkling, difficult care and poor comfort of linen garments made by existing methods, and to provide a machine washable and wrinkle-free linen fabric, garment and manufacturing method.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] First, the present invention provides a machine washable and wrinkle-free linen fabric. The linen fabric raw material is made of more than 90% linen, with a shrinkage rate of less than 3% in warp and weft, a tear strength of more than 20N, and a tear degree controlled within 0.4cm.

[0007] In the above technical solution, linen fabric made of more than 90% pure linen raw materials is used to make wrinkle-free and machine-washable linen fabric. The shrinkage rate of the linen fabric in both the warp and weft directions is limited to within 3%, the tear strength is above 20N, and the tear size is controlled within 0.4cm. By limiting the above performance parameters, it can be ensured that the linen fabric has the characteristics of linen itself, such as high moisture absorption, good moisture wicking and good breathability, while also having the advantages of being wrinkle-free and easy to handle, soft and comfortable fabric, and not easily deformed or faded after washing. It is suitable for machine-washable and wrinkle-free finished garments.

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

[0009] As a preferred embodiment of the present invention, the linen fabric is made of 100% linen and is woven from warp and weft yarns. The warp and weft yarns are single-ply yarns with a yarn count of 8 to 20S.

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

[0011] A second aspect of this invention provides a method for manufacturing machine-washable and wrinkle-free linen fabric, comprising the following steps:

[0012] S1, flax raw materials are processed into flax yarn, wherein the flax yarn is a single-ply yarn;

[0013] S2, the flax yarn is woven into a greige fabric using a loom, and the greige fabric has a high-density warp and weft structure.

[0014] S3, the greige fabric is sequentially subjected to singeing, descaling, special bleaching, cold pad-batch dyeing, and re-dyeing;

[0015] S4, the greige fabric is finished to obtain the linen fabric. The finishing process includes mercerizing, liquid ammonia treatment, setting, and pre-shrinking. In the mercerizing process, the alkali concentration is 12-24 Be, the temperature is 20-30℃, and the time is 40-60s. In the liquid ammonia treatment, liquid ammonia is applied at a temperature of -33±1℃ and the immersion time is 15-25s. In the setting process, the temperature is 130-150℃ and the time is within 1 minute.

[0016] The above-mentioned technical solution provides a method for producing linen fabric. First, linen is made into single-ply yarn, and then a greige fabric is made by using high-density warp and weft yarns. By strictly controlling the density of each yarn, the resulting fabric has better weaving tightness, giving the linen fabric good tear and snapping strength. Then, the greige fabric undergoes singeing, descaling, special bleaching, cold pad-batch dyeing, and re-dyeing. Finally, it undergoes finishing processes such as mercerizing, mercerizing, setting, and pre-shrinking. Through the combination of cold pad-batch dyeing, mercerizing, and liquid ammonia treatment, the shortcomings of linen fabric such as wrinkleability, hand feel, and shrinkage are improved. This results in a fabric that is not easily deformed or faded after washing, has good softness, and is wrinkle-free, making it suitable for machine-washable and wrinkle-free finished garments.

[0017] As a preferred embodiment of the present invention, the flax fabric raw material is 100% flax, and the method for producing the flax yarn includes: 100% flax raw material → combing long flax → combing and humidifying the flax → blending flax → hand-forming slivers → grouping → long flax pre-drawing → single yarn 1-4 draws → long flax roving → roving bleaching → wet spinning → spinning → drying → yarn color separation → winding → warehousing. Long flax pre-drawing is the drawing process in the long flax spinning system. This process involves drawing and combining the combed flax slivers through a drawing frame to produce flax slivers with relatively uniform yarn and structure and straight, parallel fibers.

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

[0019] As a preferred embodiment of the present invention, during the singeing process of the fabric, the singeing speed is 90-120m / min, high heat is used, the temperature reaches 800-1000℃, and the hairiness rating after singeing reaches 4-5.

[0020] As a preferred embodiment of the present invention, the descaling process employs a wide-temperature enzymatic descaling method, followed by steaming in a steam oven at a temperature of 35–70°C, and then high-temperature water washing at a temperature of 60–95°C.

[0021] As a preferred embodiment of the present invention, the special bleaching is carried out using hydrogen peroxide bleaching at a temperature of 90-100°C for 1-2 hours.

[0022] As a preferred embodiment of the present invention, cold pad-batch dyeing is carried out at a temperature of 20–30°C. In addition to the majority of cellulose, flax fiber contains many non-fibrous substances (collectively referred to as "colloids") such as pectin, hemicellulose, lignin, and fatty waxes. These substances are present alongside cellulose and act as dye repellents during the dyeing process. They are thoroughly removed through cold pad-batch pretreatment to prevent whitening and uneven dyeing after dyeing, ensuring uniform dyeing.

[0023] As a preferred embodiment of the present invention, the re-dyeing process includes: dyeing of semi-finished products → padding → rolling → coating with paper → rotating and stacking → washing and soaping → drying. During the padding process, the ratio of various auxiliaries and alkalis is precisely controlled. The drying temperature of the washing and soaping process 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 to 8.0, the alkali content is 0.06 to 0.075%, and the water absorption is within 20 seconds.

[0025] As a preferred embodiment of the present invention, the thickness of the rubber blanket during the pre-shrinking process 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.

[0026] Another aspect of the present invention provides a machine-washable and wrinkle-free linen garment, said linen garment being made of the aforementioned machine-washable and wrinkle-free linen fabric.

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

[0028] This invention also provides a method for manufacturing machine-washable and wrinkle-free linen garments, comprising the following steps:

[0029] A1. Cut and sew using the above-mentioned machine-washable and wrinkle-free linen fabric;

[0030] A2. Spray wrinkle-free finishing liquid to make the linen garment have a liquid retention rate of 70-90%, and the finishing time is 10-40 minutes.

[0031] A3. Pre-dry the linen garment at a temperature of 80-100℃ for 15-30 minutes. After pre-drying, the moisture content of the linen garment should be controlled at 20-30%.

[0032] A4. Inflate the entire linen garment and pre-iron it;

[0033] A5. The linen garment is shaped using a high-temperature press, with pressing conditions of 80-100℃ and time of 8-10 seconds.

[0034] A6. Dehumidify and dry the linen garment at 105-130℃ for 5-10 minutes, so that the moisture content of the linen garment is 0-10% after completion.

[0035] A7. Perform rapid freezing and cold air finishing on the linen garments;

[0036] A8. After washing, finishing and drying, you will get machine washable and wrinkle-free linen garments.

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

[0038] In the above technical solution, the linen garment is first sewn, then an anti-wrinkle finishing liquid is sprayed onto it. Pre-drying, pre-ironing, and pressing are then performed. Next, the linen garment is dehumidified and dried. After low-temperature setting, the moisture content of the linen garment is reduced to 0-10%, achieving proper shaping. Then, an anti-wrinkle quick-freezing cold air finishing device is used to improve the anti-wrinkle effect. After washing, any remaining anti-wrinkle finishing liquid is thoroughly removed, leaving no residue. Throughout the entire production process, by controlling the anti-wrinkle process parameters and using machine-washable and anti-wrinkle linen fabric in conjunction with the anti-wrinkle process, the linen garment possesses the advantages of linen itself—high moisture absorption, good moisture wicking, and excellent breathability—while also being machine-washable, anti-wrinkle, soft, and comfortable. It offers high wearing comfort, is not prone to wrinkles, and achieves an anti-wrinkle effect of 3-3.5. It also has a qualified dimensional change rate after washing and naturally straightens after several machine washes, exhibiting good flatness and requiring no ironing.

[0039] As a preferred embodiment of the present invention, in the method for manufacturing a machine-washable and wrinkle-free linen suit, the detailed steps of A1 are as follows:

[0040] A11. Cut, sew, and interfacing the linen fabric, then make shoulder pads, front panel, gather darts, and open pockets. The interfacing is made of polyester fiber fusible interfacing, and the shrinkage rate of the fusible interfacing is within 2%. When making the front panel, the facing and the front panel are sewn together with a flat sewing machine, leaving large and small stop marks. Leave a stop mark of 0.7-0.8cm on the front panel and a stop mark of 0.3-0.4cm on the facing panel.

[0041] A12. Perform the shaping and pulling process, sew the side seams, make the bottom edge, and join the shoulder seams; the shaping and pulling value is between 0.4 and 1 cm.

[0042] A13. Add chest lining and inlay strips to the suit;

[0043] A14. Perform the re-hanging and ironing of the outer surface, then sew the side seams, make the bottom edge, and join the shoulder seams;

[0044] A15. Perform collar and sleeve attachment processes, including shoulder stitching and buttonhole installation;

[0045] A16. Press the suit and then sew on the buttons.

[0046] As a preferred embodiment of the present invention, in the manufacturing method of the machine-washable and wrinkle-free linen shirt, an open-loop design is adopted during sewing, which is thinner and avoids the easy formation of chemical stains on the edge of the opening when wrinkle-free, which are difficult to clean.

[0047] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0048] 1. This invention provides a machine-washable and wrinkle-free linen fabric. Made from over 90% linen raw materials, this linen fabric is wrinkle-free and machine-washable. The warp and weft shrinkage rates are limited to within 3%, the tear strength to over 20N, and the shedding depth to within 0.4cm. By limiting these performance parameters, the linen fabric retains the inherent characteristics of linen—high moisture absorption, good moisture wicking, and excellent breathability—while also offering the advantages of being wrinkle-free, easy to care for, soft and comfortable, and resistant to deformation or fading after washing. It is suitable for machine-washable and wrinkle-free finished garments. Performance tests show that the dimensional change rate after washing, seam shedding depth, breaking strength, tear strength, and pilling level of the linen fabric all meet the standard requirements.

[0049] 2. This invention provides a method for preparing machine-washable and wrinkle-free linen fabric. First, 100% linen is made into single-ply yarn. Then, a greige fabric is made by using high-density warp and weft yarns. By strictly controlling the density of each yarn, the resulting fabric has better weaving tightness, giving the linen fabric good tear and snapping strength. Then, the greige fabric is singed, de-scaled, bleached, cold pad-batch dyed, and re-dyed. Finally, it undergoes finishing processes such as mercerizing, mercerizing, setting, and pre-shrinking. Through the combination of cold pad-batch dyeing, mercerizing, and liquid ammonia treatment, the shortcomings of linen fabric such as wrinkleability, hand feel, and shrinkage are improved. This results in a fabric that is not easily deformed or faded after washing, has good softness, and is wrinkle-free, making it suitable for machine-washable and wrinkle-free finished garments.

[0050] 3. This invention provides machine-washable and wrinkle-free linen garments and their manufacturing method. By controlling the wrinkle-free process parameters and using machine-washable and wrinkle-free linen fabric in conjunction with the wrinkle-free process, the linen garments possess the advantages of linen itself, such as high moisture absorption, good moisture wicking, and excellent breathability, while also being machine-washable, wrinkle-free, soft, and comfortable. They offer high wearing comfort, are less prone to wrinkles, and achieve a wrinkle-free effect of 3-3.5. They also exhibit a qualified dimensional change rate after washing, naturally straightening and maintaining good flatness after several machine washes, requiring no ironing. Performance tests show that the dimensional change rate after washing, the flatness of the appearance after washing and drying, the seam appearance after washing and drying, and the pleat appearance after washing and drying all meet the standard requirements. Furthermore, the finished garments are soft to the touch and offer excellent comfort. Attached Figure Description

[0051] Figure 1 A photograph of a linen fabric produced using the method of this invention;

[0052] Figure 2 Image showing the performance test results of linen fabric made using the method of this invention;

[0053] Figure 3The graph shows the performance test results of the linen fabric in Comparative Example 1.

[0054] Figure 4 The graph shows the performance test results of the linen fabric in Comparative Example 2.

[0055] Figure 5 The graph shows the performance test results of the linen fabric in Comparative Example 3.

[0056] Figure 6 A photograph of a suit made using the method of this invention;

[0057] Figure 7 The graph shows the performance test results of a suit made using the method of this invention.

[0058] Figure 8 A photograph of a short-sleeved shirt manufactured using the method of this invention;

[0059] Figure 9 The graph shows the performance test results of a short-sleeved shirt manufactured using the method of this invention.

[0060] Figure 10 The graph shows the performance test results of a long-sleeved shirt manufactured using the method of this invention.

[0061] Figure 11 A photograph of actual trousers manufactured using the method of this invention;

[0062] Figure 12 The image shows the performance test results of the trousers manufactured using the method of this invention. Detailed Implementation

[0063] To more clearly describe the inventive objectives, technical solutions, and advantages of the specific embodiments of this invention, the solutions in the specific embodiments will be described in detail below with reference to the accompanying drawings. The specific technical solutions involved in the following embodiments are merely for the purpose of clearly and completely describing the innovative technical solutions of this invention. They are only a part of the specific implementation methods that this invention can adopt, not all embodiments, and should not be construed as limiting the innovative solutions of this invention. Any solution that adopts the same inventive concept as this invention should be included within the protection scope of this invention.

[0064] Secondly, the descriptions in the accompanying drawings of the specific embodiments of this invention are merely for the convenience of those skilled in the art to understand the invention. The details shown in the drawings are for the purpose of clearly presenting the technical solution, and should not be construed as including all technical features in the drawings in the specific implementation examples, nor should the details in the drawings be considered as additional limitations on the innovative technical solution of this invention. The components in the various embodiments described and shown in the drawings can be combined and arranged in different configurations. These variations in combination and arrangement should be considered as part of all embodiments of the innovative solution of this invention and included within the scope of protection of this invention.

[0065] In summary, the solutions or descriptions presented in the specific embodiments and accompanying drawings of this invention are not intended to limit the scope of protection claimed, but merely to illustrate selected embodiments / examples to help those skilled in the art understand the relevant innovative solutions. All other equivalent or parallel embodiments obtained by those skilled in the art based on these embodiments without inventive effort are within the scope of protection claimed by this invention.

[0066] Example 1

[0067] This embodiment provides a machine-washable and wrinkle-free linen fabric. The linen fabric is made from 100% flax fiber, selected from high-quality French dew-covered flax, and features high water absorption and good thermal conductivity, as well as a sustainable tanning process. The method for producing the linen fabric includes the following steps:

[0068] S1. Flax raw materials are processed into flax yarn, which is a single-ply yarn. The process for producing flax yarn includes: raw flax → combing into long flax → combing and humidifying → blending → hand-forming into slivers → blending → long flax pre-combining → single yarn 1-4 draws → long flax roving → roving bleaching → wet spinning → spinning → drying → yarn color separation → winding → warehousing. The resulting yarn is a single-ply yarn with a 9-count twist of 300 / meter.

[0069] S2, the linen yarn is woven into greige fabric using a loom. The greige fabric has a high warp and weft density. A high-density loom, specifically a Toyota loom, is used in the fabric weaving process to improve shrinkage and tear resistance. Due to the high warp and weft density, the weaving is very difficult and requires advanced looms. In the weaving process, 9 single-ply yarns are woven into the greige fabric at a density of 54*41.

[0070] S3 involves sequentially performing singeing, desizing, special bleaching, cold pad-batch dyeing, and re-dyeing on the greige fabric. During singeing, the singeing speed is 90–120 m / min, using high heat to reach a temperature of 800–1000℃, resulting in a 4–5 grade rating for the greige fabric's hairiness. Desizing is performed using a wide-temperature enzymatic desizing process, followed by steaming at 35–70℃, and then high-temperature washing at 60–95℃. Special bleaching is performed using hydrogen peroxide at 90–100℃ for 1–2 hours. Cold pad-batch dyeing is carried out at 20–30℃ using a complete set of intelligent cold pad-batch dyeing equipment, specifically employing Huntsman's high-end dyes to maintain a constant temperature and achieve a uniform color effect. The re-dyeing process includes: dyeing of semi-finished products → padding → rolling → coating with adhesive paper → rotating and stacking → washing and soaping → drying. During the padding process, the ratio of various auxiliaries and alkalis is precisely controlled. The drying temperature of the washing and soaping process is 130-150℃, and the time is within 1 minute.

[0071] S4. The greige fabric is finished to obtain linen fabric. The finishing process includes mercerizing, liquid ammonia finishing, setting, and pre-shrinking. In the mercerizing process, the alkali concentration is 12-24 Be, the temperature is 20-30℃, and the time is 40-60s. When the greige fabric is finished with liquid ammonia, it is first pre-dried and then immersed in liquid ammonia at -33±1℃ for 20-25s to remove excess ammonia. In the setting process, the temperature is 130-150℃ and the time is within 1 minute.

[0072] In the fabrication process, mercerizing and liquid ammonia wrinkle-free treatment are crucial. At an extremely low temperature of -33±1℃, liquid ammonia treats flax fibers, causing ammonia molecules to react with the hydroxyl groups in cellulose molecules, forming easily decomposable cellulose-ammonia complexes. After steaming to remove the ammonia, ammonia-modified cellulose is obtained. This liquid ammonia finishing process causes the flax fibers to swell, shrink, and set, reducing crystallinity, loosening the microstructure, rearranging fiber molecules, and redistributing internal stress. This not only makes the fabric more stable, increases elasticity, and improves wrinkle resistance, but also provides a lasting soft hand feel, eliminates itching, and further enhances the fabric's softness by increasing its softness and fiber cohesion. The pH value of the flax fabric after liquid ammonia treatment is 6.0–8.0, the alkali content is 0.06–0.075%, and the water absorption is within 20 seconds. During the pre-shrinking process, the rubber blanket thickness is 54–66 mm, the equipment speed is 30–80 m / min, and the drying cylinder pressure is 0.2–0.5 MPa. In some embodiments, after the fabric has undergone mercerizing and liquid ammonia finishing, it needs to be steamed. If it has undergone cross-linking and wrinkle-free treatment, it also needs to be washed to prevent the fabric from becoming too soft during the setting process.

[0073] The actual image of the linen fabric produced in Example 1 above is shown below. Figure 1The garments underwent performance testing. The dimensional change rate test method was GB / T 8629-2017, Type A washing machine, program: 4G, hanging to dry; the seam tear test method was FZ / T 81007-2022, 5.4.8, load 100N; the breaking strength test method was GB / T 3923.1-2013 strip method; the tear strength test method was GB / T 3917.2-2009 trousers method; the pilling grade test method was GB / T4802.1-2008 circular trajectory method, pilling 10 times, pilling 50 times, pressure 490cN, judgment criteria adopted FZ / T 81007-2022 "Single and Layered Garments"; the absorbency and drying speed were tested according to GB / T 21655.1-2023. The test results are shown in Tables 1 and 2 below. Figure 2 It should be noted that, Figure 2 The data only shows the dimensional change rate after washing, the degree of seam tearing, and the tear strength.

[0074] Table 1 Performance tests of the linen fabric prepared in Example 1

[0075]

[0076] Table 2. Results of absorbency and drying properties of the linen fabric prepared in Example 1.

[0077]

[0078] As can be seen from the above data, the dimensional change rate after washing, seam tearing, breaking strength, tearing strength, and pilling grade of the linen fabric made using this invention all meet the standard requirements. In the absorbency and drying properties test, the absorption rate, evaporation rate, water absorption rate, and wicking all meet the standard requirements and show good performance. This invention uses high-density weaving to control the seam tearing value during fabric preparation. Liquid ammonia and post-treatment pre-shrinking improve the fabric's hand feel and shrinkage rate, ensuring that the linen fabric's shrinkage is within 3% in both warp and weft directions, its tearing strength is above 20N, and the seam tear is controlled within 0.4cm. The resulting linen fabric possesses the inherent characteristics of linen—high moisture absorption, good moisture wicking, and excellent breathability—while also being wrinkle-free, easy to finish, soft and comfortable, and resistant to deformation or fading after washing. It is suitable for making wrinkle-free and machine-washable linen garments.

[0079] Example 2

[0080] This embodiment provides a machine-washable and wrinkle-free linen fabric. The linen fabric is made of 100% linen fiber. The shrinkage rate of the linen fabric is within 3% of the warp and weft, the tear strength is above 20N, and the tear is controlled within 0.4cm. The preparation method of the linen fabric is similar to that of Embodiment 1. The difference is that in the process of making linen yarn in this embodiment, the single strand yarn obtained by spinning is 14 count with a twist of 400 / meter. Correspondingly, in the weaving process, the 14 count single strand yarn is woven into a greige fabric with a density of 64*52. The process parameters of other steps are the same as those of Embodiment 1.

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

[0082] Example 3

[0083] This embodiment provides a machine-washable and wrinkle-free linen fabric. The linen fabric is made of 100% linen fiber. The shrinkage rate of the linen fabric is within 3% of the warp and weft, the tear strength is above 20N, and the weave is controlled within 0.4cm. The preparation method of the linen fabric is similar to that of Embodiment 1. The difference is that in the process of making linen yarn in this embodiment, the single strand yarn obtained by spinning is 17 count with a twist of 460 / meter. Correspondingly, in the weaving process, the 17 count single strand yarn is woven into a greige fabric with a density of 64*52. The process parameters of other steps are the same as those of Embodiment 1.

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

[0085] Example 4

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

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

[0088] Comparative Example 1

[0089] This comparative example provides a linen fabric made of 100% linen fiber, using 17-count single-ply yarn produced by the method of Example 3, woven into a greige fabric with a density of 54*41, and the process parameters for other steps are the same as in Example 1.

[0090] The linen fabric prepared in Comparative Example 1 was tested according to the method in Example 1. The test results are shown in Table 2 below. Figure 3 As shown:

[0091] Table 3 Performance tests of the linen fabric prepared in Comparative Example 1

[0092]

[0093] According to the data in Table 3 above, the dimensional change rate after washing, seam tearing, breaking strength, and tearing strength of the linen fabric meet the standard requirements, but the pilling grade does not meet the standard requirements. This is because when the density of the linen fabric is relatively high, the structure is relatively tight, and the frictional resistance between the yarns is relatively large. This makes it difficult for the hairs on the yarn surface to slip to the fabric surface and form fluff, so it is not easy to pill and has good anti-pilling performance.

[0094] Comparative Example 2

[0095] This comparative example provides a linen fabric made of 100% linen fiber. The linen is made into 9-count single-ply yarn using the method of Example 1 and woven into a greige fabric with a density of 54*41. The difference from Example 1 is that this comparative example does not perform the liquid ammonia treatment step, while the process parameters of other steps are the same as those of Example 1.

[0096] The linen fabric prepared in Comparative Example 3 was tested according to the method in Example 1. The test results are shown in Table 4 below. Figure 4 As shown:

[0097] Table 4 Performance tests of the linen fabric prepared in Comparative Example 2

[0098]

[0099] According to the data in Table 4 above, the dimensional change rate after washing, breaking strength, and tear strength of the linen fabric meet the standard requirements, but the degree of seam tearing and pilling do not meet the standard requirements, and the fabric prepared feels rough to the touch. This is because the comparative example lacks liquid ammonia treatment in the finishing process. Fabrics treated with liquid ammonia are softer, cause less damage to the fibers, and do not harden after multiple washes. It can also eliminate the potential damage to linen fibers that may be caused by mercerizing with caustic soda. Therefore, linen fabrics treated with mercerizing liquid ammonia have better flexibility and anti-pilling properties.

[0100] Comparative Example 3

[0101] This comparative example provides a linen fabric made from 100% flax fiber. The flax is produced using the method of Example 1, using 9-count single-ply yarn, and woven into a grey fabric with a density of 54*41. The difference from Example 1 is that the temperature in the setting process after liquid ammonia treatment in this comparative example is 150-160°C, and the time is within 1 minute. The process parameters for other steps are the same as in Example 1. The linen fabric produced in Comparative Example 3 was tested for dimensional change rate after washing, seam tearing degree, and tear strength according to the method of Example 1. The test results are shown in Table 5 below. Figure 5 As shown:

[0102] Table 5 Performance tests of the linen fabric prepared in Comparative Example 3

[0103]

[0104] According to the data in Table 5 above, the dimensional change rate and tear strength of the linen fabric after washing meet the standard requirements, but the seam tearing does not meet the standard requirements. This is because the temperature of the comparative sample was too high during the setting process after liquid ammonia treatment, reaching 160℃, which caused certain damage to the linen fibers. Therefore, the fabric prepared was brittle and the seam tearing was unqualified.

[0105] Example 5

[0106] This embodiment provides a method for making a machine-washable and wrinkle-free linen suit, including the following steps:

[0107] A1. The machine-washable and wrinkle-free linen fabric from Example 2 is used for cutting and sewing;

[0108] During the cutting and sewing process, machine-washable and wrinkle-free linen fabric is used for cutting according to the paper pattern. The fabric quality of the cut pieces is checked, as well as the positions of darts, pockets, and the cut marks for armholes, waistbands, etc.

[0109] Fusible interfacing: Fusible interfacing is applied to the placket, inner facing, collar, pocket flaps, back hem, and cuffs. Fusible interfacing conditions are: pressure 4.0±0.2KG, time 6~7S, and pressing temperature 146~148℃. Machine-washable and wrinkle-free polyester fiber fusible interfacing is used, with a shrinkage rate of less than 2% and a weight of 50g / m². 2 The lining is made from the front sheet and the noodles directly to the foot; the lining is made using an automatic pressing machine, the Italian brand MARTIN.GROUP, with upper and lower heating plates for fully automatic heating;

[0110] To make shoulder pads, they are handmade. The shoulder pads are cut into semicircles with a radius of 13-14cm. The shoulder pads have four layers: the first layer is lining fabric, the second layer is sponge, the third layer is cotton felt, and the fourth layer is lining fabric. The second and third layers are sewn together by hand using a sewing machine or a triangular stitch, and then binding strips are added around the edges.

[0111] Making the front panel, gathering darts, and opening the pocket: For the front panel, sew the facing to the front panel using a flat sewing machine, leaving large and small allowances. Leave a 0.7-0.8cm allowance on the front panel and a 0.3-0.4cm allowance on the facing. Gather the bust darts using a flat sewing machine, then gather the front waist darts (gather 0.5cm at the dart point, sew 2-3 stitches past the dart tip, add a 1*1cm thin interfacing to the tip, tie the thread end, and leave a 0.8cm thread end). Press the darts towards the side, sew the back seam, and join the side seams. Skilled sewing workers should sew straight and even lines along the allowances and cuts, ensuring the start and end threads are secure and do not come loose. Leave 0.5cm allowances on all allowances, add binding tape, and maintain 11-12 stitches per inch for all stitches. Treat the allowances using a heat-resistant sewing method. Through the above methods, there are no exposed allowances, resulting in a cleaner look.

[0112] Structuring and pressing: A special structuring and pressing machine is used to structure and press the front piece, back piece, sleeve piece, and hanging piece. A special mold press is used to structure and press the piece into shape. During operation, the structuring range is controlled according to the mold at the part that needs to be structured.

[0113] Sewing the side seams, making the bottom edge, and joining the shoulder seams: all seams are first stitched, then bound, with 11-12 stitches per inch. After folding the bottom edge, the seam is stitched straight. The shoulder seams are operated by a special machine, with skilled workers controlling the fabric allowance according to the fabric sections. The seam allowance is split to maintain a 0.5-0.8cm stop. After the stop is hemmed, a binding strip is added, and a 0.5-0.8cm joining point is set.

[0114] For attaching the collar and sleeves: The collar is drawn according to the pattern, and the sewing worker sews it accurately and smoothly along the drawn lines, and trims the seams. Then, the pressing worker presses the seams smooth. The body and the bottom collar are sewn together, and the outer collar and the inner collar are sewn together. A 0.3-0.4cm seam is trimmed 1-2cm from the collar point to allow for the corners to be turned out. For attaching the sleeves, the sleeves and the inner lining are notched according to the pattern. A skilled sewing worker checks the notches and seams point by point to see if there is any visible stitching. If there is visible stitching, there is no seam allowance; if there is no visible stitching, there is a 0.2-0.3cm seam allowance.

[0115] The shoulder is hand-sewn with cotton padding, with a total of 6 fixing points: 5 fixing points at the sleeve cap and 1 fixing point at the shoulder top. The sleeve cap fixing points are evenly distributed about 5cm apart, and the line height of each hand-sewn fixing point is 0.2-0.3cm.

[0116] Keyhole: Draw the positions of the keyholes according to the paper pattern, align them with the drawing, and complete the process according to the machine operation procedure;

[0117] Ironing and buttoning: Finished buttons are sewn on using a Dürkopp special machine, which is fully automatic and wraps around the foot. Each hole has 8 wires, and hot melt wire is used to wrap around the foot.

[0118] In the above preparation process, the suit is made without lining, all seams are bound, binding strips are sewn, the inner placket is ironed and folded, shoulder pads are hand-sewn, and wrinkle-free thread is used for stitching. Shrinkage is controlled at 1% to 3%. Reducing shrinkage and high temperature may affect the flatness of the fabric. Specifically, 502 thread is used, which is a shrink-resistant core-spun polyester thread with a single thread breaking strength of not less than 720 CN / 50cm and a single thread skeleton strength of 30 to 50 CN / cm (i.e., 300 to 500 g / cm).

[0119] A2. Spraying wrinkle-free finishing liquid: Prepare the wrinkle-free finishing liquid according to the weight of the suit. Place 30-50 suits in the wrinkle-free finishing cabinet and wash them in the two-way rotating wrinkle-free finishing cabinet at a speed of 15-25 rpm. Pressurized atomized finishing liquid is sprayed onto the tumbling suits at a pressure of 0.5-1 MPa, so that the liquid coverage of the suits reaches 75-80%. The finishing time is 15-25 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 garment and iron it flat to ensure better results and higher efficiency during pressing.

[0122] A5. Finished product heat pressing pre-order; 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 garment is used to smooth it out, and wrinkles and uneven areas are ironed.

[0124] A6. Fit the suit into a 3D mannequin hanger: Fit the suit into a 3D hanger specifically designed for wrinkle-free suits. The hanger's shoulder width adjustment length is 1-2cm longer than the shoulder width. Set the suit in a high-temperature setting cabinet at 110±2℃ for 5-10 minutes to achieve 90% to full dryness.

[0125] A7. Anti-scalding and quick-freezing cold air conditioning equipment: In the anti-scalding and quick-freezing cold air conditioning equipment, the temperature is rapidly reduced in the freezer at -5 to 0℃, and the air is gently patted for 6 to 12 minutes to improve the anti-scalding feel.

[0126] A8. Washing and finishing: Gently wash with clean water for 8-10 minutes to improve the feel, remove loose threads, unreacted additives, free formaldehyde, etc.; then dry the finished product at a temperature of 85±2℃ for 20-30 minutes until completely dry.

[0127] The suit made in Example 5 is as follows Figure 6As shown, performance tests were conducted. 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 smoothness of the appearance 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 wash-dry 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 wash-dry cycles, program: 4A, tumble drying. The judgment standard was GB / T 18863-2002 "Wrinkle-Free Textiles". The test results are shown in Table 6 below. Figure 7 As shown:

[0128] Table 6 Performance tests of the suit made in Example 5

[0129]

[0130] As can be seen from the results in the table above, the dimensional change rate after washing, the flatness of the appearance after washing and drying, the appearance of the seams after washing and drying, and the appearance of the pleats after washing and drying of the suits made using the present invention all meet the standard requirements. Moreover, the suits made using this invention feel soft to the touch and are very comfortable.

[0131] Example 6

[0132] This embodiment provides a method for manufacturing a machine-washable and wrinkle-free linen suit. The difference from Embodiment 5 is that this embodiment uses the linen fabric prepared in Embodiment 3 to make the suit; the other steps and process parameters are the same as in Embodiment 5. The suit produced in Embodiment 6 was tested according to the method in Embodiment 5. The dimensional change rate after washing, the smoothness of the appearance after washing and drying, the seam appearance after washing and drying, and the pleat appearance after washing and drying all met the standard requirements. Furthermore, the finished suit felt soft to the touch and was very comfortable.

[0133] Example 7

[0134] This embodiment provides a method for manufacturing a machine-washable and wrinkle-free linen short-sleeved shirt, including the following steps:

[0135] A1. Using the machine-washable and wrinkle-free linen fabric of Example 2, the fabric is cut according to the short-sleeved shirt pattern during the cutting and sewing process. The cut pieces are then spliced ​​and sewn together to obtain a semi-finished shirt. The sewing process adopts an exposed tube design, which is thinner and avoids the easy formation of chemical stains on the tube edge during wrinkle-free processing, which are difficult to clean.

[0136] A2. Spray wrinkle-free finishing liquid; adjust the wrinkle-free finishing liquid ratio according to the weight of the shirts, put 40-60 shirts into the wrinkle-free finishing cabinet, wash them in the two-way rotating wrinkle-free finishing cabinet at a speed of 20-25 rpm, and spray the pressurized atomized finishing liquid onto the tumbling shirts at a pressure of 0.5-1 MPa, so that the shirts have a liquid retention rate of 80-85%, and the finishing time is 20-30 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 garment with air and iron it flat.

[0139] A5. Finished product pressing and shaping: Use professional collar pressing machine and professional sleeve pressing machine, pressing time 8-10 seconds, temperature 90±2℃; During the finishing process, use the pressed shirt to smooth it out, and use an iron to repair any wrinkles or uneven areas.

[0140] A6. Place the shirt on a three-dimensional mannequin hanger and set it in a high-temperature setting cabinet at 115±2℃ for 5 to 10 minutes until the shirt is 90% to 100% dry.

[0141] A7. Anti-scalding and quick-freezing cold air conditioning equipment: In the anti-scalding and quick-freezing cold air conditioning equipment, the temperature is rapidly reduced in the freezer at -5 to 0℃, and the air is gently patted for 6 to 12 minutes to improve the anti-scalding feel.

[0142] A8. Washing and finishing: Gently wash with clean water for 8-10 minutes to improve the feel, remove loose threads, unreacted additives, free formaldehyde, etc.; then dry the finished product at a low temperature of 90±2℃ for 20-30 minutes until completely dry.

[0143] The short-sleeved shirt produced in Example 7 is as follows: Figure 8 As shown, performance tests were conducted according to the method in Example 5, and the test results are shown in Table 7 below. Figure 9 As shown:

[0144] Table 7 Performance tests of the short-sleeved shirts produced in Example 7

[0145]

[0146]

[0147] As can be seen from the results in the table above, the dimensional change rate after washing, the flatness of the appearance after washing and drying, the appearance of the seams after washing and drying, and the appearance of the pleats after washing and drying of the short-sleeved shirts made using the present invention all meet the standard requirements. Moreover, the short-sleeved shirts made using the present invention feel soft to the touch and are very comfortable.

[0148] Example 8

[0149] This embodiment provides a method for manufacturing a machine-washable and wrinkle-free linen long-sleeved shirt. The difference from Embodiment 7 is that this embodiment uses the linen fabric prepared in Embodiment 3 to make the long-sleeved shirt. The other steps and process parameters are the same as in Embodiment 7. The long-sleeved shirt prepared in Embodiment 8 was tested according to the method in Embodiment 5. The test results are shown in Table 8 below. Figure 10 As shown.

[0150] Table 8 Performance tests of the long-sleeved shirt prepared in Example 8

[0151]

[0152] The data in the table shows that the dimensional change rate after washing, the smoothness of the appearance after washing and drying, the appearance of the seams after washing and drying, and the appearance of the pleats after washing and drying of the long-sleeved shirts all meet the standard requirements. In addition, the long-sleeved shirts made from these shirts feel soft to the touch and are very comfortable.

[0153] Example 9

[0154] This embodiment provides a method for manufacturing machine-washable and wrinkle-free linen trousers, including the following steps:

[0155] A1. Using the machine-washable and wrinkle-free linen fabric of Example 1, the fabric is cut according to the trouser pattern during the cutting and sewing process. The cut pieces are spliced ​​and sewn together using existing trouser sewing methods to obtain semi-finished trousers.

[0156] A2. Spray wrinkle-free finishing liquid; adjust the wrinkle-free finishing liquid ratio according to the weight of the shirt, put 40-60 pairs of trousers into the wrinkle-free finishing cabinet, wash in the two-way rotating wrinkle-free finishing cabinet at a speed of 5-20 rpm, pressurized atomized finishing liquid is sprayed onto the tumbling trousers at a pressure of 0.5-1 MPa, so that the liquid rate of the trousers reaches 80-90%, and the finishing time is 15-20 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 and iron them flat.

[0159] A5. During the pre-pressing of the finished product, the pressing time is 8-10 seconds and the temperature is 95±2℃. During the finishing process, the pressed pants are used to smooth them out and the wrinkles and uneven areas are repaired with an iron.

[0160] A6. Place the three-dimensional mannequin clothes hanger over the pants and set it in a high-temperature setting cabinet at 120±2℃ for 5 to 8 minutes to make the pants 90% to 100% dry.

[0161] A7. Anti-scalding and quick-freezing cold air conditioning equipment: In the anti-scalding and quick-freezing cold air conditioning equipment, the temperature is rapidly reduced in the freezer at -5 to 0℃, and the air is gently patted for 6 to 12 minutes to improve the anti-scalding feel.

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

[0163] The trousers made in Example 9 are as follows Figure 11 As shown, performance tests were conducted according to the method in Example 5, and the test results are shown in Table 9 below. Figure 12 As shown:

[0164] Table 8 Performance tests of the trousers made in Example 8

[0165]

[0166] As can be seen from the results in the table above, the dimensional change rate after washing, the flatness of the appearance after washing and drying, the appearance of the seams after washing and drying, and the appearance of the pleats after washing and drying of the pants made using the present invention all meet the standard requirements. Moreover, the pants made using the present invention feel soft to the touch and are very comfortable.

[0167] For those skilled in the art, when understanding the solutions described in the specific embodiments of the present invention, conventional technical manuals in the field can be consulted. At the same time, appropriate understandings or adjustments can be made to the above-mentioned terms to deduce the same or similar technical solutions without creative effort.

[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 embodiments and the description of the invention content in the specification are only the principles or specific cases of the present invention. Without departing from the essence of the innovative idea of ​​the present invention, there are various changes and improvements to the innovative solution of the present invention, and all such changes and improvements fall within the scope of protection claimed by the present invention.

Claims

1. A method for producing machine-washable and wrinkle-free linen fabric, characterized in that, The linen fabric is made of more than 90% linen, with a shrinkage rate of less than 3% in both warp and weft, a tear strength of more than 20N, and a tear depth controlled within 0.4cm. The manufacturing method Includes the following steps: S1, the above raw materials are made into flax yarn, the flax yarn is a single-ply yarn, and the yarn count is 8 to 20S; S2, the flax yarn is woven into a greige fabric using a loom, and the greige fabric has a high-density warp and weft structure. S3, the greige fabric is sequentially subjected to singeing, descaling, special bleaching, cold pad-batch dyeing, and re-dyeing; S4, the greige fabric is finished to obtain the linen fabric. The finishing process includes mercerizing, liquid ammonia treatment, setting, and pre-shrinking. In the mercerizing process, the alkali concentration is 12~24°Bé, the temperature is 20~30℃, and the time is 40~60s. In the liquid ammonia treatment, liquid ammonia is applied at a temperature of -33±1℃, and the immersion time is 15~25s. After liquid ammonia treatment, the pH value of the linen fabric is 6.0~8.0, the alkali content is 0.06~0.075%, and the water absorption is within 20s. In the pre-shrinking process, the thickness of the rubber blanket is 54~66mm, the speed of the equipment is 30~80m / min, and the steam pressure of the drying cylinder is 0.2~0.5MPa. In the setting process, the temperature is 130~150℃, and the time is within 1 minute.

2. The method for producing machine-washable and wrinkle-free linen fabric according to claim 1, characterized in that, The linen fabric is made from 100% linen.

3. The method for producing machine-washable and wrinkle-free linen fabric according to claim 1, characterized in that, The linen fabric yarn count is 9-count single-ply yarn, 14-count single-ply yarn, or 17-count single-ply yarn.

4. The method for producing machine-washable and wrinkle-free linen fabric according to claim 3, characterized in that, 9-count single-ply yarn has a twist of 300 twists / meter, 14-count single-ply yarn has a twist of 400 twists / meter, and 17-count single-ply yarn has a twist of 460 twists / meter.

5. The method for producing machine-washable and wrinkle-free linen fabric according to claim 1, characterized in that, The raw material for the linen fabric is 100% linen, and the method for making the linen yarn includes: 100% linen raw material → combing long linen → combing linen and humidifying → blending linen → hand-forming into strips → grouping → pre-combining long linen → single yarn 1-4 times of drawing → long linen roving → roving bleaching → wet spinning → spinning → drying → color separation of fine yarn → winding → warehousing.

6. The method for producing machine-washable and wrinkle-free linen fabric according to any one of claims 1-5, characterized in that, During the singeing process of the fabric, the singeing speed is 90~120m / min, high heat is used, and the temperature reaches 800~1000℃. After singeing, the hairiness rating reaches level 4~5. The desizing process involves wide-temperature enzymatic desizing, followed by steaming in a steam oven at 35-70℃, and then high-temperature washing at 60-95℃. Special bleaching is performed using hydrogen peroxide at a temperature of 90~100℃ for 1~2 hours; Cold pad-batch dyeing is carried out at a temperature of 20~30℃; The re-dyeing process includes: dyeing of semi-finished products → padding → rolling → coating with adhesive paper → rotating and stacking → washing and soaping → drying. During the padding process, the ratio of various auxiliaries and alkalis is precisely controlled. The drying temperature of the washing and soaping process is 130~150℃, and the time is within 1 minute.

7. A machine-washable and wrinkle-free linen fabric, characterized in that, The linen fabric is produced using the method for producing machine-washable and wrinkle-free linen fabric as described in any one of claims 1-6.

8. A machine-washable and wrinkle-free linen garment, characterized in that, The linen garment is made of the machine-washable and wrinkle-free linen fabric as described in claim 7.

9. A method for manufacturing a machine-washable and wrinkle-free linen garment as described in claim 8, characterized in that, Includes the following steps: A1. The machine-washable and wrinkle-free linen fabric described in claim 7 is used for cutting and sewing; A2. Spray wrinkle-free finishing liquid to make the linen garment have a liquid coverage of 70-90%, and the finishing time is 10-40 minutes. A3. Pre-dry the linen garment at a temperature of 80-100℃ for 15-30 minutes. After pre-drying, the moisture content of the linen garment should be controlled at 20-30%. A4. Inflate the entire linen garment and pre-iron it; A5. The linen garment is shaped using a high-temperature press, with pressing conditions of 80~100℃ and time of 8~10 seconds. A6. Dehumidify and dry the linen garment at 105~130℃ for 5~10 minutes, so that the moisture content of the linen garment is 0~10% after completion; A7. Perform rapid freezing and cold air finishing on the linen garments; A8. After washing, finishing and drying, you will get machine washable and wrinkle-free linen garments.

Images