A joint-smoothed spliced quilting fabric and a manufacturing method thereof

Abstract

The application relates to the technical field of quilting fabrics, and particularly discloses a spliced quilting fabric with smooth joints and a manufacturing method thereof. The quilting fabric is connected together by quilting treatment of multiple layers of fabrics. In the quilting treatment, the tension of the top thread is 100-120 g, the tension of the bottom thread is 35-45 g, the top thread and the bottom thread are modified sewing threads obtained by treating sewing threads with a surface treatment agent, and the surface treatment agent is mainly made of the following raw materials: dimethyl silicone oil, modified hydrogen-containing silicone oil, octamethylcyclotetrasiloxane, an anionic surfactant, a nonionic surfactant, a chelating dispersant and water. The quilting fabric is processed by the mutual cooperation of each step and the surface treatment agent, the modified sewing thread is sewn more smoothly, the stitches in the quilting fabric are smooth and flat, the quilting fabric is beautiful and comfortable, the quality and the aesthetic degree of the quilting fabric are improved, and the market demand is met.

Description

Technical Field

[0001] This application relates to the field of quilted fabric technology, and more specifically, to a smooth-seam spliced ​​quilted fabric and a method for manufacturing the same. Background Technology

[0002] Quilted fabric is a common home textile material, typically made by sewing multiple layers of fabric together using a sewing machine. This not only creates a layered and aesthetically pleasing look but also enhances the overall performance of the fabric. The quilting process inevitably requires the use of sewing thread, which can be made from polyester, cotton, nylon, or silk yarn. First, the sewing thread is mounted on the sewing machine. Then, multiple layers of fabric are placed on the machine and quilted together, creating the quilted fabric with stitches formed by the sewing thread. However, uneven stitches often occur during the quilting process, leading to uneven seams and wrinkles. Therefore, researching a quilted fabric with smooth and even stitches is crucial for improving seam smoothness and overall fabric quality. Summary of the Invention

[0003] In order to improve the smoothness and flatness of the stitches and reduce the friction coefficient of the sewing thread, this application provides a spliced ​​quilted fabric with smooth seams and a method for manufacturing the same.

[0004] In a first aspect, this application provides a quilted fabric with smooth seams, employing the following technical solution: A smooth-seam spliced ​​quilted fabric, comprising multiple layers of fabric, which are arranged from top to bottom as a top layer, a middle layer, and a bottom layer. The top layer, middle layer, and bottom layer are quilted together using a quilting machine and connected together. In the quilting process, the tension of the top thread is 100-120g, the tension of the bottom thread is 35-45g, the elasticity of the presser foot is 1800-2000g, and the stitch density is 10-15 stitches / 3cm. Both the top thread and the bottom thread are modified sewing thread, which is obtained by treating the sewing thread with a surface treatment agent. The surface treatment agent is mainly made from the following raw materials in parts by weight: 25-35 parts dimethyl silicone oil, 18-22 parts modified hydrogen-containing silicone oil, 18-22 parts octamethylcyclotetrasiloxane, 8-12 parts anionic surfactant, 8-12 parts nonionic surfactant, 4-6 parts chelating dispersant, and 140-160 parts water; the modified hydrogen-containing silicone oil is obtained by treating hydrogen-containing silicone oil with diacetone acrylamide and allyl glycidyl ether.

[0005] This application discloses a smooth-seam spliced ​​quilted fabric that uses quilting to connect multiple layers of fabric together. The parameters of top thread tension, bottom thread tension, presser foot elasticity, and stitch density during the quilting process are optimized. Furthermore, a surface treatment agent is used to treat the sewing thread, increasing its smoothness and abrasion resistance, reducing friction damage during quilting, and minimizing stitch breakage or knotting. This results in smoother sewing with the modified sewing thread, producing smooth, flat, aesthetically pleasing, and comfortable stitches that meet market demands.

[0006] The surface treatment agent of this application adds modified hydrogen-containing silicone oil to dimethyl silicone oil. The hydrogen-containing silicone oil is modified using diacetone acrylamide and allyl glycidyl ether, introducing active groups such as amide, carbonyl, ether, and epoxy groups into the hydrogen-containing silicone oil. This not only increases the compatibility of the modified hydrogen-containing silicone oil but also enhances the interaction between the hydrogen-containing silicone oil and dimethyl silicone oil. This increases the uniformity of the surface treatment agent's modification of the sewing thread, improves the storage stability of the surface treatment agent, and enhances the smoothness and abrasion resistance of the modified sewing thread. Furthermore, the coefficient of friction is <0.2, the coefficient of variation of friction is <0.3, and the absolute increase in the coefficient of friction after 12 months of storage is <0.05. This improves the overall performance of the modified sewing thread, ensuring the flatness and smoothness of the stitches in quilted fabrics and enhancing the quality and aesthetics of the quilted fabrics.

[0007] In several implementation schemes, during quilting, the top thread tension is 110g, the bottom thread tension is 40g, the presser foot elasticity is 1900g, and the stitch density is 12 stitches / 3cm. The top thread tension can be set to 100g, 105g, 115g, or 120g as needed. The bottom thread tension can also be set to 35g, 38g, 43g, or 45g as needed. The presser foot elasticity can also be set to 1800g, 1850g, 1950g, or 2000g as needed. The stitch density can also be set to 10 stitches / 3cm, 11 stitches / 3cm, 13 stitches / 3cm, 14 stitches / 3cm, or 15 stitches / 3cm as needed. However, these are not limited to the listed values; other unlisted values ​​within this range are also applicable.

[0008] Optionally, the modified hydrogen-containing silicone oil is prepared using the following method: Xylene, diacetone acrylamide, allyl glycidyl ether, and catalyst were mixed under continuous stirring, and the mixture was heated to 100-110℃. Hydrogen-containing silicone oil was added dropwise. After the addition was complete, the mixture was stirred for 3-5 hours and then distilled under reduced pressure to obtain modified hydrogen-containing silicone oil.

[0009] Optionally, the weight ratio of the hydrogen-containing silicone oil, diacetone acrylamide, and allyl glycidyl ether is (40-60):(13-17):(8-12).

[0010] By employing the above technical solution, grafting is achieved through the reaction of the carbon-carbon double bonds in diacetone acrylamide, the medium-carbon double bonds in allyl glycidyl ether, and hydrogen in hydrogen-containing silicone oil, thereby obtaining modified hydrogen-containing silicone oil. The modified hydrogen-containing silicone oil obtained in this application is not only simple to prepare and easy to control, but also ensures the stability and quality of the hydrogen-containing silicone oil, increases the surface smoothness of modified sewing thread, improves lubricity and wear resistance, and reduces breakage and knotting.

[0011] Optionally, the catalyst is a chloroplatinic acid isopropanol solution, wherein the mass concentration of chloroplatinic acid in the chloroplatinic acid isopropanol solution is 2-5%.

[0012] By adopting the above technical solution, the catalyst is limited, which facilitates the selection of the catalyst. Moreover, the catalyst is a chloroplatinic acid isopropanol solution. Chloroplatinic acid is dispersed in isopropanol in advance and then added to the raw material, which increases the dispersibility of chloroplatinic acid and improves the use effect of chloroplatinic acid.

[0013] In several implementations, the mass concentration of chloroplatinic acid in the isopropanol chloroplatinic acid solution is 4%, but it can also be set to 2%, 2.5%, 3%, 3.5%, 4.5%, or 5% as needed, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0014] Optionally, the weight ratio of the hydrogen-containing silicone oil to the catalyst is (40-60):(7-13).

[0015] By adopting the above technical solution, the weight ratio of hydrogen-containing silicone oil and catalyst is optimized, thereby optimizing the amount of catalyst added. This reduces the impact of insufficient catalyst addition on the reaction and also reduces the increase in cost due to excessive catalyst addition. When the weight ratio of hydrogen-containing silicone oil and catalyst is selected within the range of (40-60):(7-13), the hydrogen-containing silicone oil, diacetone acrylamide, and allyl glycidyl ether can react fully, ensuring the performance and application effect of the modified hydrogen-containing silicone oil.

[0016] Optionally, the weight ratio of the hydrogen-containing silicone oil and xylene is (4-6):(7-13).

[0017] By adopting the above technical solution, the weight ratio of hydrogen-containing silicone oil and xylene is optimized, which facilitates thorough mixing of raw materials and ensures the stability of the modified hydrogen-containing silicone oil preparation. In several embodiments, the weight ratio of hydrogen-containing silicone oil to xylene is 1:2. It can also be set to 4:7, 2:5, 4:13, 5:7, 5:13, 6:7, 3:5, or 6:13 as needed, but is not limited to the listed values; other unlisted values ​​within this range are also applicable.

[0018] Optionally, the hydrogen-containing silicone oil is added over a time of 50-70 minutes.

[0019] By adopting the above technical solution, the dripping time of the hydrogen-containing silicone oil is optimized to ensure that the hydrogen-containing silicone oil, diacetone acrylamide, and allyl glycidyl ether fully contact and react, thereby ensuring the stability of the modified hydrogen-containing silicone oil preparation, improving the smoothness and abrasion resistance of the modified sewing thread, and ensuring that the stitches of the quilted fabric are smooth and flat.

[0020] Optionally, the surface treatment agent is prepared using the following method: A surface treatment agent is obtained by mixing dimethyl silicone oil, modified hydrogen-containing silicone oil, octamethylcyclotetrasiloxane, anionic surfactant, nonionic surfactant, chelating dispersant, and water.

[0021] Optionally, the modified sewing thread is prepared using the following method: Mix water and surface treatment agent, add sewing thread, soak for 5-15 minutes, remove, dry, and obtain modified sewing thread; The weight ratio of water, surface treatment agent, and sewing thread is (18-22):(1-3):(1-3).

[0022] By adopting the above technical solution, the surface treatment agent is diluted with water, then the sewing thread is soaked, removed, and dried. This not only facilitates the preparation of modified sewing thread, but also allows the surface treatment agent to fully penetrate into the sewing thread, improving the smoothness and abrasion resistance of the modified sewing thread.

[0023] In several implementations, the weight ratio of water, surface treatment agent, and sewing thread is 10:1:1. However, the weight ratio can also be set to 18:1:1, 18:1:3, 18:3:1, 18:3:3, 22:1:1, 22:1:3, 22:3:1, or 22:3:3 as needed. But it is not limited to the listed values; other unlisted values ​​within this range are also applicable.

[0024] Optionally, the anionic surfactant is one or more of sodium dodecylbenzenesulfonate, sodium dodecyl sulfate, sodium stearate, and potassium cetyl phosphate. The nonionic surfactant is one or more of Tween 60, Tween 80, Span 60, and Span 80.

[0025] By adopting the above technical solution, the anionic surfactant and nonionic surfactant are optimized, which facilitates the selection of anionic surfactant and nonionic surfactant. Furthermore, the synergistic effect of anionic surfactant and nonionic surfactant can effectively increase the stability of the surface treatment agent and reduce the occurrence of stratification.

[0026] Optionally, the chelating dispersant is one or more of diethylenetriaminepentamethylenephosphonic acid, hydroxyethylethylenediaminetriacetic acid, ethylenediaminetetraacetic acid, and diethylenetriaminepentaacetic acid.

[0027] By adopting the above technical solution, the chelating dispersant is optimized, which facilitates the selection of the chelating dispersant. Moreover, the chelating dispersant can chelate metal ions, reducing the impact of metal ions on the modification of sewing thread.

[0028] Secondly, this application provides a method for manufacturing the aforementioned smooth-seam spliced ​​quilted fabric, employing the following technical solution: A method for manufacturing a smooth-seam quilted patchwork fabric mainly includes the following steps: S1. Prepare the outer fabric, middle fabric, bottom fabric, and modified sewing thread; S2. Install the modified sewing thread on the quilting machine and use it as both top and bottom thread; S3. Cover the bottom fabric with the middle fabric, then cover with the top fabric, and use clips to fix the bottom fabric, middle fabric, and top fabric to obtain a multi-layered fabric. S4. Place multiple layers of fabric on a quilting machine for quilting and connect them together to obtain quilted fabric.

[0029] By adopting the above technical solution, it is easier to produce quilted fabrics.

[0030] In summary, this application has at least the following beneficial effects: 1. The smooth-seam spliced ​​quilted fabric of this application optimizes the parameters of top thread tension, bottom thread tension, presser foot elasticity, and stitch density during the quilting process. Furthermore, it uses a surface treatment agent to treat the sewing thread, increasing the smoothness and abrasion resistance of the modified sewing thread, making the sewing of the modified sewing thread smoother, and also making the stitches in the quilted fabric smooth, flat, beautiful, and comfortable, thus improving the quality and aesthetics of the quilted fabric and meeting market demands.

[0031] 2. The surface treatment agent of this application adds modified hydrogen-containing silicone oil to dimethyl silicone oil, and treats the hydrogen-containing silicone oil with diacetone acrylamide and allyl glycidyl ether. Active groups such as amide groups, carbonyl groups, ether groups, and epoxy groups are introduced into the hydrogen-containing silicone oil to increase the interaction between the hydrogen-containing silicone oil and dimethyl silicone oil, improve the storage stability of the surface treatment agent, increase the uniformity of the surface treatment agent on the sewing thread, and make the modified sewing thread have the advantages of low coefficient of friction, low coefficient of friction variation, and small absolute value of increase in coefficient of friction after 12 months of storage. This improves the overall performance of the modified sewing thread and ensures the flatness and smoothness of the stitches in the quilted fabric. Detailed Implementation

[0032] To make this application easier to understand, the following detailed description will be provided with reference to embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of application of this application. Unless otherwise specified, the raw materials or components used in this application can be obtained commercially or by conventional methods.

[0033] Preparation Example Preparation Example 1 A modified hydrogen-containing silicone oil is prepared by the following method: At a rotation speed of 500 r / min, 15 g of diacetone acryloyl, 10 g of allyl glycidyl ether, and 10 g of catalyst were added to 100 g of xylene, and the mixture was stirred for 5 min. The temperature was raised to 105 °C, and 50 g of hydrogen-containing silicone oil was added dropwise over a period of 60 min. After the addition was complete, the mixture was stirred for another 4 h, and then distilled under reduced pressure to obtain the modified hydrogen-containing silicone oil.

[0034] The hydrogen-containing silicone oil is JN-202 and is selected from Shandong Juneng Chemical Co., Ltd.; the catalyst is isopropanol chloroplatinic acid solution, and the mass concentration of chloroplatinic acid in the isopropanol chloroplatinic acid solution is 4%.

[0035] Preparation Example 2 A modified hydrogen-containing silicone oil is prepared by the following method: At a rotation speed of 500 r / min, 13 g of diacetone acryloyl, 12 g of allyl glycidyl ether, and 13 g of catalyst were added to 100 g of xylene, and the mixture was stirred for 5 min. The temperature was raised to 100℃, and 40 g of hydrogen-containing silicone oil was added dropwise over a period of 50 min. After the addition was complete, the mixture was stirred for another 5 h, and then distilled under reduced pressure to obtain the modified hydrogen-containing silicone oil.

[0036] The hydrogen-containing silicone oil is JN-202 and is selected from Shandong Juneng Chemical Co., Ltd.; the catalyst is isopropanol chloroplatinic acid solution, and the mass concentration of chloroplatinic acid in the isopropanol chloroplatinic acid solution is 4%.

[0037] Preparation Example 3 A modified hydrogen-containing silicone oil is prepared by the following method: At a rotation speed of 500 r / min, 17 g of diacetone acryloyl, 8 g of allyl glycidyl ether, and 7 g of catalyst were added to 100 g of xylene, and the mixture was stirred for 5 min. The temperature was raised to 110 °C, and 60 g of hydrogen-containing silicone oil was added dropwise over a period of 70 min. After the addition was complete, the mixture was stirred for another 3 h, and then distilled under reduced pressure to obtain the modified hydrogen-containing silicone oil.

[0038] The hydrogen-containing silicone oil is JN-202 and is selected from Shandong Juneng Chemical Co., Ltd.; the catalyst is isopropanol chloroplatinic acid solution, and the mass concentration of chloroplatinic acid in the isopropanol chloroplatinic acid solution is 4%. Example

[0039] Table 1 Content of each raw material in the surface treatment agent (unit: ×10g) Dimethyl silicone oil 30 25 35 Modified hydrogen-containing silicone oil 20 22 18 Octamethylcyclotetrasiloxane 20 22 18 Anionic surfactants 10 8 12 Nonionic surfactants 10 12 8 Chelating dispersants 5 6 4 water 150 140 160

[0040] Example 1 A type of quilted fabric with smooth seams, comprising multiple layers of fabric, which are arranged from top to bottom as a top layer, a middle layer, and a bottom layer. The top layer, middle layer, and bottom layer are quilted together using a quilting machine and connected together.

[0041] The outer fabric is polyester; the middle fabric is antibacterial nonwoven fabric; the bottom fabric is pure cotton; the top and bottom threads used in the quilting process are modified sewing threads, which are obtained by treating the sewing thread with a surface treatment agent. The sewing thread is polyester yarn, and the raw materials and proportions of the surface treatment agent are shown in Table 1.

[0042] Furthermore, the dimethyl silicone oil is dimethyl silicone oil PMX-500, selected from Shandong Juneng Chemical Co., Ltd.; the anionic surfactant is sodium dodecylbenzene sulfonate; the nonionic surfactant is Tween 80; the chelating dispersant is diethylenetriaminepentamethylenephosphonic acid; and the modified hydrogen-containing silicone oil is prepared using the method of Preparation Example 1.

[0043] A method for manufacturing a smooth-seam quilted patchwork fabric mainly includes the following steps: S0. At a rotation speed of 300 r / min, add anionic surfactant, nonionic surfactant, and chelating dispersant to water, stir for 1 min, add dimethyl silicone oil, modified hydrogen-containing silicone oil, and octamethylcyclotetrasiloxane, stir for 5 min, and obtain a surface treatment agent for later use.

[0044] At a rotation speed of 50 r / min, a surface treatment agent was added to water and stirred for 1 min. Sewing thread was then added and soaked for 10 min. The thread was then removed, dried, and the modified sewing thread was obtained for later use.

[0045] The weight ratio of water, surface treatment agent, and sewing thread is 10:1:1.

[0046] S1. Prepare the top layer fabric, middle layer fabric, bottom layer fabric, and modified sewing thread.

[0047] S2. Install the modified sewing thread on the quilting machine and use it as the top thread and bottom thread.

[0048] S3. Cover the bottom fabric with the middle fabric, then cover with the top fabric, and use clips to fix the bottom fabric, middle fabric, and top fabric to obtain a multi-layered fabric.

[0049] S4. Place multiple layers of fabric on a quilting machine for quilting and connect them together to obtain quilted fabric.

[0050] In the quilting process, the top thread tension is 110g, the bottom thread tension is 40g, the presser foot elasticity is 1900g, and the stitch density is 12 stitches / 3cm.

[0051] Example 2 A smooth-seam quilted fabric is different from that in Example 1 in that the raw material ratio of the surface treatment agent is different, and the raw material ratio is shown in Table 1.

[0052] Example 3 A smooth-seam quilted fabric is different from that in Example 1 in that the raw material ratio of the surface treatment agent is different, and the raw material ratio is shown in Table 1.

[0053] Example 4 A smooth-seam quilted fabric is different from Example 1 in that the modified hydrogen-containing silicone oil in the surface treatment agent has a different source and is prepared by the method of Preparation Example 2.

[0054] Example 5 A smooth-seam quilted fabric is different from that in Example 1 in that the modified hydrogen-containing silicone oil in the surface treatment agent has a different source and is prepared by the method of Preparation Example 3.

[0055] Comparative Example Comparative Example 1 A smooth-seam spliced ​​quilted fabric, which differs from Example 1 in that, in the quilting process of step S4, the top thread tension is 130g and the bottom thread tension is 50g.

[0056] Comparative Example 2 A smooth-seam spliced ​​quilted fabric, which differs from Example 1 in that, in the quilting process of step S4, the top thread tension is 90g and the bottom thread tension is 30g.

[0057] Comparative Example 3 A smooth-seam quilted fabric is provided, which differs from Example 1 in that the modified hydrogen-containing silicone oil is replaced with an equal amount of dimethyl silicone oil in the raw materials of the surface treatment agent.

[0058] Comparative Example 4 A smooth-seam quilted fabric is provided, which differs from Example 1 in that the modified hydrogen-containing silicone oil is replaced with an equal amount of hydrogen-containing silicone oil in the raw materials of the surface treatment agent.

[0059] Comparative Example 5 A smooth-seam spliced ​​quilted fabric, which differs from Example 1 in that, in the preparation method of the modified hydrogen-containing silicone oil in the raw materials of the surface treatment agent, an equal amount of undecenoate methyl ester replaces diacetone acrylamide and allyl glycidyl ether.

[0060] Comparative Example 6 A smooth-seam quilted fabric, which differs from Example 1 in that, in the preparation method of modified hydrogen-containing silicone oil, an equal amount of diacetone acrylamide is used instead of allyl glycidyl ether in the raw materials of the surface treatment agent.

[0061] Comparative Example 7 A smooth-seam quilted fabric, which differs from Example 1 in that, in the preparation method of modified hydrogen-containing silicone oil, an equal amount of allyl glycidyl ether is used instead of diacetone acrylamide in the raw materials of the surface treatment agent.

[0062] Performance testing (1) Quilted fabrics obtained in Examples 1-5 and Comparative Examples 1-7 were taken respectively, and the appearance of the stitches of the quilted fabrics was inspected. The inspection results are shown in Table 2. At the same time, a blank control group was set up. The sewing thread used in the blank control group was polyester yarn, that is, the sewing thread was not treated with surface treatment agent.

[0063] The stitch appearance was inspected using the following method: Ten professionals were selected to evaluate and score the smoothness and evenness of the stitches on the quilted fabric surface, with a total score of 10 points. The higher the score, the smoother and even the stitches.

[0064] (2) The modified sewing threads obtained in step S0 of Examples 1-5 and Comparative Examples 1-7 were taken respectively, and the coefficient of friction and coefficient of variation of friction of the modified sewing threads were tested. The test results are shown in Table 2. At the same time, a blank control group was made. The sewing thread used in the blank control group was polyester yarn, that is, the sewing thread was not treated with surface treatment agent.

[0065] The coefficient of friction and coefficient of variation of the modified sewing thread were tested according to ASTM D3108-2013, "Standard Test Method for Coefficient of Friction of Yarns from Solid Materials". A lower coefficient of friction indicates a smoother surface of the modified sewing thread. A lower coefficient of variation indicates better dispersion of the coefficient of friction, meaning better uniformity of the surface treatment agent's modification of the sewing thread.

[0066] (3) Take the surface treatment agents obtained in step S0 of Examples 1-5 and Comparative Examples 1-7 respectively, store the surface treatment agents for 12 months, and then use the surface treatment agents stored for 12 months to treat the sewing thread to obtain modified sewing thread. The friction coefficient of the modified sewing thread is tested, and the absolute value of the increase in friction coefficient after 12 months of storage is calculated. The test results are shown in Table 2.

[0067] The absolute increase in the coefficient of friction after 12 months of storage is calculated as: |Coefficient of friction of the modified sewing thread obtained by treating the sewing thread with the surface treatment agent after 12 months of storage - Coefficient of friction of the modified sewing thread obtained by treating the sewing thread with the surface treatment agent after 0 days of storage|. Furthermore, the smaller the absolute increase in the coefficient of friction after 12 months of storage, the better the storage properties of the surface treatment agent.

[0068] Table 2 Test Results

[0069] Note: " / " indicates that it was not detected.

[0070] As can be seen from Table 2, the modified sewing thread of this application has a low coefficient of friction, coefficient of friction variation, and absolute increase in coefficient of friction after 12 months of storage. The coefficient of friction is 0.14-0.18, the coefficient of friction variation is 0.25-0.29, and the absolute increase in coefficient of friction after 12 months of storage is 0.01-0.02. This not only makes the surface treatment agent stable during storage, but also gives the surface treatment agent the advantage of good uniformity of modification treatment on the sewing thread. At the same time, the surface of the modified sewing thread is smooth, reducing friction during quilting and reducing the occurrence of stitch breakage or knotting. This makes the stitches uniform, smooth, and beautiful, and also enables the stitch score of the quilted fabric to reach 10 points. The stitches are smooth, flat, beautiful, and comfortable, meeting market demands.

[0071] Example 1 and Comparative Examples 1-2 were compared. In the quilting treatment of the quilted fabric in Comparative Example 1, the top thread tension was 130g and the bottom thread tension was 50g; in the quilting treatment of the quilted fabric in Comparative Example 2, the top thread tension was 90g and the bottom thread tension was 30g; in the quilting treatment of the quilted fabric in Example 1, the top thread tension was 110g and the bottom thread tension was 40g. It can be seen that in the quilting treatment, the magnitude of the top thread tension and bottom thread tension affects the smoothness and evenness of the stitches. A top thread tension of 100-120g and a bottom thread tension of 35-45g result in smooth, even, aesthetically pleasing, and comfortable stitches.

[0072] Example 1 and Comparative Examples 3-4 were compared. The surface treatment agent of Comparative Example 3 contained dimethyl silicone oil; the surface treatment agent of Comparative Example 4 contained dimethyl silicone oil and hydrogen-containing silicone oil; and the surface treatment agent of Example 1 contained dimethyl silicone oil and modified hydrogen-containing silicone oil. It can be seen that treating sewing thread with a surface treatment agent can reduce the coefficient of friction and the coefficient of friction variation of the modified sewing thread. Furthermore, the addition of modified hydrogen-containing silicone oil to dimethyl silicone oil, and the interaction between the two, can further reduce the coefficient of friction and the coefficient of friction variation, and also reduce the absolute increase in the coefficient of friction after 12 months of storage. This gives the surface treatment agent the advantage of storage stability and effectively improves the smoothness of the modified sewing thread, resulting in superior overall performance.

[0073] Example 1 and Comparative Examples 5-7 were compared. The modified hydrogen-containing silicone oil of Comparative Example 5 was obtained by treating hydrogen-containing silicone oil with methyl undecanoate; the modified hydrogen-containing silicone oil of Comparative Example 6 was obtained by treating hydrogen-containing silicone oil with diacetone acrylamide; the modified hydrogen-containing silicone oil of Comparative Example 7 was obtained by treating hydrogen-containing silicone oil with allyl glycidyl ether; and the modified hydrogen-containing silicone oil of Example 1 was obtained by treating hydrogen-containing silicone oil with both diacetone acrylamide and allyl glycidyl ether. It can be seen that in the modified hydrogen-containing silicone oil, the treatment with diacetone acrylamide and allyl glycidyl ether introduces active groups such as amide groups, carbonyl groups, ether groups, and epoxy groups into the silicone oil. The interaction between these groups significantly reduces the coefficient of friction, resulting in a superior performance of the surface treatment agent.

[0074] It should be noted that the embodiments described above are only for explaining this application and do not constitute any limitation on this application. This application has been described with reference to typical embodiments, but it should be understood that the terms used therein are descriptive and explanatory terms, not limiting terms. Modifications can be made to this application within the scope of the claims, and revisions can be made to the invention without departing from the scope and spirit of this application. Although the application described herein relates to specific methods, materials, and embodiments, it does not mean that this application is limited to the specific examples disclosed herein; on the contrary, this application can be extended to all other methods and applications with the same function.

Claims

1. A type of quilted fabric with smooth seams, characterized in that: The quilted fabric includes multiple layers of fabric, which are arranged from top to bottom as a top layer, a middle layer, and a bottom layer. The top layer, middle layer, and bottom layer are quilted together using a quilting machine and connected together. In the quilting process, the tension of the top thread is 100~120gf, the tension of the bottom thread is 35~45gf, the presser foot pressure is 1800~2000gf, and the stitch density is 10~15 stitches / 3cm. Both the top thread and the bottom thread are modified sewing thread, which is obtained by treating the sewing thread with a surface treatment agent. The surface treatment agent is mainly made from the following raw materials in parts by weight: 25-35 parts dimethyl silicone oil, 18-22 parts modified hydrogen-containing silicone oil, 18-22 parts octamethylcyclotetrasiloxane, 8-12 parts anionic surfactant, 8-12 parts nonionic surfactant, 4-6 parts chelating dispersant, and 140-160 parts water; the modified hydrogen-containing silicone oil is obtained by treating hydrogen-containing silicone oil with diacetone acrylamide and allyl glycidyl ether.

2. The quilted fabric with smooth seams as described in claim 1, characterized in that: The modified hydrogen-containing silicone oil is prepared by the following method: Xylene, diacetone acrylamide, allyl glycidyl ether, and catalyst were mixed under continuous stirring, and the mixture was heated to 100-110℃. Hydrogen-containing silicone oil was added dropwise. After the addition was complete, the mixture was stirred for 3-5 hours and then distilled under reduced pressure to obtain modified hydrogen-containing silicone oil.

3. The quilted fabric with smooth seams as described in claim 2, characterized in that: The weight ratio of the hydrogen-containing silicone oil, diacetone acrylamide, and allyl glycidyl ether is (40-60):(13-17):(8-12).

4. The quilted fabric with smooth seams as described in claim 2, characterized in that: The catalyst is a chloroplatinic acid isopropanol solution, and the mass concentration of chloroplatinic acid in the chloroplatinic acid is 2-5%.

5. The quilted fabric with smooth seams as described in claim 4, characterized in that: The weight ratio of the hydrogen-containing silicone oil and the catalyst is (40-60):(7-13).

6. The quilted fabric with smooth seams according to claim 2, characterized in that: The hydrogen-containing silicone oil is added over a period of 50-70 minutes.

7. The quilted fabric with smooth seams according to claim 1, characterized in that: The modified sewing thread is prepared using the following method: Mix water and surface treatment agent, add sewing thread, soak for 5-15 minutes, remove, dry, and obtain modified sewing thread; The weight ratio of water, surface treatment agent, and sewing thread is (18-22):(1-3):(1-3).

8. The quilted fabric with smooth seams according to claim 1, characterized in that: The anionic surfactant is one or more of sodium dodecylbenzenesulfonate, sodium dodecyl sulfate, sodium stearate, and potassium cetyl phosphate. The nonionic surfactant is one or more of Tween 60, Tween 80, Span 60, and Span 80.

9. The quilted fabric with smooth seams according to claim 1, characterized in that: The chelating dispersant is one or more of diethylenetriaminepentamethylenephosphonic acid, hydroxyethylethylenediaminetriacetic acid, ethylenediaminetetraacetic acid, and diethylenetriaminepentaacetic acid.

10. A method for manufacturing a smoothly seamed quilted fabric as described in any one of claims 1-9, characterized in that: The main steps include the following: S1. Prepare the outer fabric, middle fabric, bottom fabric, and modified sewing thread; S2. Install the modified sewing thread on the quilting machine and use it as both top and bottom thread; S3. Cover the bottom fabric with the middle fabric, then cover with the top fabric, and use clips to fix the bottom fabric, middle fabric, and top fabric to obtain a multi-layered fabric. S4. Place multiple layers of fabric on a quilting machine for quilting and connect them together to obtain quilted fabric.

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