Production process for preventing linen shirts from slipping during washing of seams

Abstract

The invention belongs to the technical field of textiles, and particularly relates to a production process for preventing slippage of washing seams of a linen-proof shirt. The invention discloses a production process for preventing slippage of washing seams of a linen-proof shirt. The production process sequentially comprises the following steps of lining cloth bonding, sewing treatment, washing treatment, dehydration and drying and button sewing. The lining cloth bonding refers to bonding movable linings or water-soluble lining cloth at the collar, sleeve caps and sleeve qis parts of the linen shirt; the sewing treatment comprises the following steps: pre-treating the seam of the cutting piece easy to slip, debugging parameters of sewing equipment, sewing the whole shirt, and locking holes but not sewing buttons after sewing; the water washing treatment comprises soaping for impurity removal and anti-slip soft washing; the dewatering and drying step comprises dewatering, pre-drying and cold air treatment; button sewing is carried out after dehydration and drying are completed. According to the production process for preventing the linen shirt from sliding in the washing seam, the manufactured shirt is soft, comfortable, cool and breathable, and the phenomena of sliding, wool opening and the like of the seam can not occur when the shirt is washed for multiple times.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, specifically relating to the production process of slippage at the seam during washing of linen-resistant shirts. Background Technology

[0002] Linen fiber is highly favored among high-end shirt fabrics due to its unique advantages such as moisture absorption and breathability, rugged and natural style, and dry and comfortable wear. However, linen fiber itself is rigid and has poor elasticity, and its yarn is usually relatively sparse, which leads to many technical problems in the production and use of linen shirt fabrics, among which the problem of "seam slippage after washing" is particularly prominent.

[0003] Seam slippage, also known as "slippage," refers to the phenomenon where yarns in a fabric slip laterally from the seam when subjected to external force, causing the seam to separate. Linen shirts, after being sewn, typically undergo washing and drying processes to achieve a soft feel and stable dimensions. However, under the mechanical force of industrial or household washing, the loose fabric structure and low friction between yarns make it highly susceptible to slippage at the seams. This not only causes significant rework during production, substantially increasing costs, but more seriously, if seam slippage occurs during washing after the garment is sold, it will directly lead to cracking at the seams, severely affecting the product's appearance, durability, and wearing experience, causing embarrassment for the wearer, triggering customer complaints and claims, and damaging the brand's reputation.

[0004] In the prior art, several solutions have been proposed to address the problem of seam slippage in textiles. For example, patent CN109109410A discloses a process that uses hot melt adhesive to bond corduroy fabric to a breathable membrane, followed by a one-sided water-repellent treatment to improve seam slippage. However, this process aims to give the fabric waterproof and breathable properties and increase its stiffness. Its core bonding process completely alters the lightweight and breathable natural essence of linen fabric, making it completely unsuitable for linen shirts that prioritize naturalness, environmental friendliness, and a unique feel. Patent CN111074621A discloses a finishing process for wrinkle-resistant linen shirts. Although its finishing composition includes an "anti-cracking agent," the main purpose of this patent is to solve the wrinkle problem and shorten the finishing time. Its processes (such as alkaline washing, stacking, soaking in chemicals, and baking) primarily target the wrinkle resistance of the fabric and do not specifically address or verify its effectiveness in preventing seam slippage during the washing process of linen shirts. Another patent, CN110747562A, mainly focuses on the mechanical performance indicators of ultra-soft denim fabric. Its high seam slip strength comes from the tight structural characteristics of denim fabric, which is fundamentally different from the loose structural characteristics of linen fabric. Therefore, its technical solution cannot be used to solve the problem of tearing in linen shirts.

[0005] Furthermore, the literature "Research on Linen Shirt Production Technology" (published by Song Haiyan et al. on June 19, 2023) also explores the quality control of linen shirts from the macro-process perspectives of cutting, interfacing, sewing, ironing, and washing, pointing out problems such as easy slippage, and proposing general suggestions such as controlling stitch density and adjusting the washing process to improve the feel. However, these suggestions are mostly empirical summaries, lacking a set of integrated and innovative processes that are targeted and systematic, from materials science to refined finishing, to fundamentally and quantifiably solve the stubborn technical defect of linen shirt seam slippage during washing. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a production process for preventing slippage of seams in linen shirts during washing. The resulting shirts are not only soft, comfortable, cool and breathable, but can also withstand multiple washes without seam slippage or fraying.

[0007] The production process for the seam slippage of the linen-resistant shirt after washing according to the present invention includes the following steps in sequence: Lining bonding, sewing, washing, dehydration and drying, and buttoning; The lining bonding refers to bonding a loose lining or water-soluble lining to the collar, cuffs, and armholes of a linen shirt. The sewing process includes pre-treating the seams of the easily slipping cut pieces, adjusting the sewing equipment parameters, and sewing the entire shirt. After sewing, buttonholes are made but buttons are not sewn on. The water washing process includes soaping to remove impurities and a softening wash to prevent slippage. The dehydration and drying process includes dehydration, pre-drying, and cold air treatment; The fastening is performed after dehydration and drying.

[0008] The pretreatment in the sewing process refers to: applying three-line overlock, four-line overlock, adhesive mesh, or spraying anti-slip agent to the seams of easily slipping cut pieces.

[0009] The adjustment of sewing equipment parameters in the sewing process refers to: adjusting the top thread tension to 35-60g, the bottom thread tension to 20-35g, and the stitch density to 11-18 stitches / 3cm.

[0010] In the sewing process, the seam width at the joint is controlled between 1-1.5cm; the sleeve is attached using a double-needle overlock blind stitch with 0.5-1cm visible stitch, and the side seams and sleeve seams are joined using a double-needle overlock stitch.

[0011] The soaping process conditions for removing impurities in the water washing treatment are as follows: water washing temperature 30-45℃, time 5-15min, and soaping agent dosage 25-40g / L.

[0012] The anti-slip softening washing process conditions in the water washing treatment are as follows: use anti-slip agent Raycare SF-AS at a dosage of 15-25 g / L, non-silicone softener Raysoft CS-N at a dosage of 25-50 g / L; water washing temperature of 30-40℃, time of 15-20 min, and water washing machine speed of 10-15 rpm.

[0013] In the dehydration and drying steps, the pre-drying temperature is 40-50℃ and the time is 20-30 minutes; the cold air treatment time is 10-20 minutes.

[0014] The lining used is a removable lining or a water-soluble lining specially adapted to the properties of linen fabric.

[0015] In the sewing process, the width of the rolled bottom edge is 0.5-0.8cm.

[0016] The entire process combines the aforementioned lining bonding, sewing pretreatment, equipment parameter adjustment, specific washing processes, and post-finishing procedures to jointly achieve the goal of preventing slippage of the seams during the washing of linen shirts.

[0017] Specifically, the production process for the seam slippage during washing of the linen-resistant shirt includes the following steps: (1) Interlining bonding process: Select a suitable interlining or water-soluble interlining for the linen collar, cuffs, and sleeve guards for bonding. (2) Sewing process: ① Before sewing a linen shirt, for seams where the seams of the cut pieces are prone to slippage, first use three or four stitches to overlock the edges, or first glue a layer of low-temperature lining strip, or spray an anti-slip agent; ② Next, adjust the pressure and stitch density of the sewing equipment. The tension of the sewing top thread and bottom thread should be matched. The top thread tension should be 35-60g and the bottom thread tension should be 20-35g. The stitch density should be 11-18 stitches / 3cm. ③ Then sew the entire linen-proof shirt, with seam allowances between 1-1.5cm at the seams, and sew each part. For areas prone to slipping: use double-needle overlock blind stitching with 0.5-1cm topstitching for the sleeves, and use double-needle overlock stitching for the side seams and sleeve seams.

[0018] Double-layered shoulder seam, shoulder seam, collar seam, cuff seam, cuff seam allowance 1-1.5cm, bottom hem width 0.5-0.8cm.

[0019] After the linen shirt is sewn, buttonholes should be sewn on first, but buttons should not be sewn on, to avoid damage to the buttons during the washing process of the linen shirt.

[0020] (3) Method for making the ironing process: ① Soap washing removes impurities. Linen shirts are cleaned with soap to remove impurities and prevent the itching sensation associated with wearing linen shirts. The soap washing process involves washing at a water temperature of 30-45℃ for 5-15 minutes, using WO soap at a dosage of 25-40g / L. ② The optimal anti-slip softening wash process: anti-slip agent RaycareSF-AS, dosage 15-25g / L; non-silicone softener RaysoftCS-N, dosage 25-50g / L; water washing temperature 30-40℃; time: 15-20min; washing machine speed 10-15 rpm.

[0021] (4) The dehydration and drying process includes: ① Linen shirts are spun dry after washing; ② Pre-dry the linen shirt for 20-30 minutes at a temperature of 40-50℃; ③ Dry with cold air for 10-20 minutes to ensure the linen shirt feels smooth.

[0022] (5) Finally, sew the buttons onto the linen shirt to prevent the buttons from being damaged during the washing and drying process.

[0023] Compared with the prior art, the beneficial effects of the present invention are: (1) This invention does not employ a single technical means, but rather coordinates and controls multiple aspects such as materials (lining), pre-sewing treatment (overlocking / mesh / anti-slip agent), sewing parameters (tension / needle density), sewing process (special overlocking), post-finishing (anti-slip washing, low-temperature drying) and even production process (post-buttoning), forming a complete and efficient solution that fundamentally curbs the occurrence of seam slippage.

[0024] (2) Through the combined effect of the above-mentioned multiple steps, the present invention greatly enhances the firmness of the seam, so that the linen shirt can still maintain a smooth seam, without slipping or fraying even after multiple washes, significantly improving the quality and lifespan of the product.

[0025] (3) While solving the slippage problem, this invention perfectly preserves the excellent properties of linen fabric itself—softness, comfort, and breathability—by using water-soluble lining, precise softening finishing, and cold air treatment processes, thus achieving a unity of functionality and comfort.

[0026] (4) The present invention innovatively adjusts the "button sewing" process to after washing and drying, which effectively avoids wear and collision damage that may be caused to the buttons during high-speed washing and drying, and reduces the defect rate. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments.

[0028] Unless otherwise specified, all raw materials and additives used in this invention are commercially available and have no special requirements.

[0029] The sources of the adjuvants used below are as follows: Soap detergent WO: Zibo Lurui Fine Chemical Co., Ltd.

[0030] Anti-slip agent RaycareSF-AS: cationic type, composition: silica gel dispersion, white liquid, 5-100g / L, Zibo Lurui Fine Chemical Co., Ltd.

[0031] RaysoftCS-N, a non-silicone softener: an amide quaternary ammonium salt, manufactured by Zibo Lurui Fine Chemical Co., Ltd.

[0032] Example 1 The aforementioned production process for the seam slippage during washing of linen-resistant shirts includes the following steps: (1) Lining bonding process: Select linen interlining (model: 4262, weight: 60g / m²) 2 (Jiangsu Xinjie Lining Co., Ltd.), bonding collars, cuffs, and sleeves.

[0033] (2) Sewing process: ① For seams of easily slipping fabric pieces (sleeves, side seams, cuffs, collars, and armholes), apply a three-line overlock and spray with an anti-slip agent solution. The anti-slip agent solution is prepared as follows: anti-slip agent Raycare SF-AS at a dosage of 15g / L, non-silicone softener Raysoft CS-N at a dosage of 25g / L, temperature of 35℃, and pH adjusted to 5.5 with 2g / L acetic acid. Apply the anti-slip agent solution to the seams of the fabric pieces, and steam for 9 minutes after 5 minutes to bring the moisture content of the fabric pieces to 3%. ② Adjust the sewing equipment pressure and stitch density to make the top thread tension 35g, the bottom thread tension 20g, and the stitch density 13 stitches / 3cm; ③ When sewing the entire shirt, the seam allowance should be kept within 1cm.

[0034] The following processes are used for key components: Sleeve attachment: Double-needle overlock stitching with 0.5cm topstitching; Side seam and sleeve seam joining: Double needle overlock stitching technique; The seam allowance for the double-layered over-the-shoulder seam, shoulder seam, collar seam, cuff seam, and sleeve seam is 1cm. The bottom edge width is 0.5cm; ④ After sewing, make a buttonhole but do not sew on a button.

[0035] (3) Washing and ironing process: ① Soap washing to remove impurities: water temperature 30℃, time 15min, soap detergent WO dosage 30g / L; ② Anti-slip softening wash: Anti-slip agent RaycareSF-AS dosage 15g / L, non-silicone softener RaysoftCS-N dosage 30g / L, water washing temperature 30℃, time 20min, washing machine speed 10 rpm.

[0036] (4) Dehydration and drying process: ①Wash with water and then dehydrate; ② Pre-dry for 20 minutes at a temperature of 40℃; ③ Cool air treatment for 20 minutes.

[0037] (5) Finally, attach the buttons to avoid damage to the buttons during the initial washing and drying.

[0038] Example 2 The aforementioned production process for the seam slippage during washing of linen-resistant shirts includes the following steps: (1) Lining bonding process: Water-soluble interlining fabric (model: 170ES, weight: 85g / m²) was selected. 2 (Nantong Haihui Textile Technology Co., Ltd.), bonded to collars, cuffs, and sleeves.

[0039] (2) Sewing process: ① Apply four-line overlock stitching to the seams of easily slipping cut pieces and bond a layer of low-temperature lining strip (F23, 24g / m²). 2 PA polyamide, 1cm width); ② Adjust the sewing equipment: top thread tension 40g, bottom thread tension 30g, stitch density 15 stitches / 3cm; ③ The seam allowance at the joint should be controlled within 1.2cm. The key processes are as follows: Sleeve attachment: Double-needle overlock stitch with 0.6cm topstitching; Side seam and sleeve seam joining: double-needle overlock stitch; The seam allowance for the double-layered over-the-shoulder seam, shoulder seam, collar seam, cuff seam, and sleeve seam is 1.25cm. The bottom edge width is 0.6cm; ④ After completion, make the keyhole, but do not sew on the buttons.

[0040] (3) Washing and ironing process: ① Soap washing: Temperature 40℃, time 10min, WO soap dosage 40g / L; ② Anti-slip softening wash: Anti-slip agent RaycareSF-AS dosage 20g / L, non-silicone softener RaysoftCS-N dosage 35g / L, temperature 35℃, time 18min, washing machine speed 12 rpm.

[0041] (4) Dehydration and drying process: ① Dehydration; ② Pre-bake for 25 minutes at 45℃; ③ Cool air treatment for 15 minutes.

[0042] (5) Finally, fasten the buttons.

[0043] Example 3 The aforementioned production process for the seam slippage during washing of linen-resistant shirts includes the following steps: (1) Lining bonding process: Linen interlining (model 4745, weight 100g / m²) is selected. 2 (Jiangsu Xinjie Lining Co., Ltd.), glued to collars, cuffs, and sleeves.

[0044] (2) Sewing process: ① Apply three-line overlock to the seams of easily slipping fabric pieces, and spray with an anti-slip agent solution. The anti-slip agent solution is prepared as follows: anti-slip agent Raycare SF-AS, dosage 18g / L; non-silicone softener Raysoft CS-N, dosage 28g / L; temperature 40℃; pH value adjusted to 6 with 2.5g / L acetic acid. Apply the anti-slip agent solution to the seams of the fabric pieces, and steam for 9 minutes after 7 minutes to bring the moisture content of the fabric pieces to 5%. ② Adjust the sewing equipment: top thread tension 60g, bottom thread tension 35g, stitch density 18 stitches / 3cm; ③ The seam allowance at the joint should be controlled within 1.5cm. The key processes are as follows: Sleeve attachment: Double-needle overlock stitch + 1cm topstitching; Side seam and sleeve seam joining: double-needle overlock stitch; The seam allowance for the double-layered over-the-shoulder seam, shoulder seam, collar seam, cuff seam, and sleeve seam is 1.5cm. The bottom edge width is 0.8cm; ④ After completion, make the keyhole, but do not sew on the buttons.

[0045] (3) Washing and ironing process: ① Soap washing: Temperature 45℃, time 15min, WO soap dosage 40g / L; ② Anti-slip softening wash: Anti-slip agent RaycareSF-AS dosage 25g / L, non-silicone softener RaysoftCS-N dosage 40g / L, temperature 40℃, time 20min, washing machine speed 15 rpm.

[0046] (4) Dehydration and drying process: ①Wash with water and then dehydrate; ② Pre-bake for 30 minutes at 45℃; ③ Cool air treatment for 20 minutes.

[0047] (5) Finally, fasten the buttons.

[0048] Comparative Example 1 The process is the same as in Example 1, but step ① of sewing process step (2) is removed.

[0049] Comparative Example 2 The process is the same as in Example 2, but step ② of the washing and ironing steps (3) is omitted.

[0050] Comparative Example 3 The process is the same as in Example 3, but the lining bonding process is omitted.

[0051] Comparative Example 4 The treatment is the same as in Example 3, but the anti-slip agent RaycareSF-AS in step (3) ② of the washing and ironing process is removed.

[0052] Comparative Example 5 The process is the same as in Example 1, but the final fastening in step (5) is done before washing and drying.

[0053] The shirts prepared in the above examples and comparative examples were subjected to performance testing, and the test results are shown in Table 1.

[0054] Table 1 Test Results

[0055] The test results in Table 1 show that the production process for preventing seam slippage during washing of the linen shirt provided by this invention exhibits significant advantages in all performance indicators. Compared with several comparative examples, the integrated process of this invention greatly improves the seam slippage resistance (higher slippage value) while effectively maintaining the original bursting strength, low shrinkage, excellent water absorption, comfortable elasticity, and various color fastness properties of the linen fabric. Furthermore, it successfully controls the formaldehyde content to an extremely low level, ensuring the ecological safety of the product. In addition, the example also outperforms the comparative examples in the quality of the bonded lining (no degumming, glue seepage, or bubbling) and the wrinkle-free properties of the finished product. Conversely, the absence of any single step will lead to a significant decline in one or more performance characteristics, especially the deterioration of seam slippage performance. This fully demonstrates the necessity, systematic nature, and effectiveness of the multi-step collaborative process design of this invention. The results of Comparative Example 5 further confirm that placing the button-attaching process after washing and drying effectively avoids button damage and is a necessary step to ensure the quality of the finished product.

Claims

1. A production process for wash-resistant seam slippage of a shirt, characterized by: The steps are as follows: Lining bonding, sewing, washing, dehydration and drying, and buttoning; The lining bonding refers to bonding a loose lining or water-soluble lining to the collar, cuffs, and armholes of a linen shirt. The sewing process includes pre-treating the seams of the easily slipping cut pieces, adjusting the sewing equipment parameters, and sewing the entire shirt. After sewing, buttonholes are made but buttons are not sewn on. The water washing process includes soaping to remove impurities and a softening wash to prevent slippage. The dehydration and drying process includes dehydration, pre-drying, and cold air treatment; The fastening is performed after dehydration and drying.

2. The process for production of washable seams of a drug-proof shirt against slippage as claimed in claim 1 wherein: The pretreatment in the sewing process refers to: applying three-line overlock, four-line overlock, adhesive mesh, or spraying anti-slip agent to the seams of easily slipping cut pieces.

3. The process for production of washable seams of a drug-proof shirt against slippage as claimed in claim 1 wherein: The adjustment of sewing equipment parameters in the sewing process refers to: adjusting the top thread tension to 35-60g, the bottom thread tension to 20-35g, and the stitch density to 11-18 stitches / 3cm.

4. The process for production of washfast seams of a drug resistant shirt as claimed in claim 1 wherein: In the sewing process, the seam width at the joint is controlled between 1-1.5cm; the sleeve is attached using a double-needle overlock blind stitch with 0.5-1cm visible stitch, and the side seams and sleeve seams are joined using a double-needle overlock stitch.

5. The process for production of washable seams of a drug resistant shirt that resists slippage as claimed in claim 1, wherein: The soaping process conditions for removing impurities in the water washing treatment are as follows: water washing temperature 30-45℃, time 5-15min, and soaping agent dosage 25-40g / L.

6. The production process of washable seam slippage of a drug resistant shirt according to claim 1, characterized in that: The anti-slip softening washing process conditions in the water washing treatment are as follows: use anti-slip agent Raycare SF-AS at a dosage of 15-25 g / L, non-silicone softener Raysoft CS-N at a dosage of 25-50 g / L; water washing temperature of 30-40℃, time of 15-20 min, and water washing machine speed of 10-15 rpm.

7. The process for production of washfast seams of a drug resistant shirt as claimed in claim 1 wherein: In the dehydration and drying steps, the pre-drying temperature is 40-50℃ and the time is 20-30 minutes; the cold air treatment time is 10-20 minutes.

8. The process for production of washfast seams of a drug resistant shirt as claimed in claim 1 wherein: The lining used is a removable lining or a water-soluble lining specially adapted to the properties of linen fabric.

9. The process for production of washfast seams of a drug resistant shirt as claimed in claim 1 wherein: In the sewing process, the width of the rolled bottom edge is 0.5-0.8cm.

10. The production process for slippage of the seam during washing of linen-resistant shirts according to claim 1, characterized in that: The entire process combines the aforementioned lining bonding, sewing treatment, equipment parameter adjustment, and water washing dehydration to jointly achieve the goal of preventing slippage of the seams during the washing of linen shirts.

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