Preparation process of quilted fabric rich in wrinkles
Through the process of quilting first and then dyeing, the problems of cumbersome preparation steps and hard product texture are solved, and soft and wrinkled quilted fabrics are achieved, with the consistent color and improved production efficiency and product quality.
Patent Information
- Application Number
- CN202510665413.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2025-08-12
AI Technical Summary
The preparation process of existing quilted fabrics is complicated, resulting in long production time, hard texture and poor feel of the product, inconsistent color of the intermediate interlayer cotton and the fabric, and it is difficult to remove harmful substances.
The process of quilting first and then dyeing is adopted. By pretreating pure cotton woven fabrics and large glue-free cotton, dyeing and drying after quilting with a quilting machine, ensuring uniform fixation of the fibers and uniform penetration of the dye. The intermediate interlayer cotton is the same color as the fabric, and removing harmful substances.
The quilted fabric has soft texture and good feel, is rich in wrinkles and consistent in color, which improves production efficiency, reduces production costs, enhances fiber structure and durability, and meets the diversified market needs.
Smart Images
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Abstract
Description
Technical Field
[0001] The invention relates to a preparation process of a wrinkle-rich quilted fabric, belonging to the technical field of textiles. Background Art
[0002] Quilted fabrics are typically made by stitching two layers of fabric (such as woven cotton) together with a filling material (such as cotton) between them. Quilting is a sewing technique primarily used to secure filling within garments. Its stitching is not only practical but also adds aesthetic appeal to patterns. Quilting involves sewing together multiple layers of material, typically three layers of fabric, with the top and bottom layers secured by seams. The stitching is often patterned or decorative.
[0003] With the development of science and technology and the improvement of people's living standards, people's requirements for quilted products are becoming increasingly higher. They not only require quilted fabrics to be soft and comfortable, but also to be beautiful and three-dimensional. This is usually achieved by forming certain folds on the fabric through the quilting process. However, the process of making quilted fabrics from raw materials to finished products is relatively complicated and time-consuming.
[0004] Therefore, improving the process steps of quilting fabrics and producing quilting fabrics that are rich in wrinkles and soft to the touch are of great significance for the market production and application of quilting fabrics. Summary of the Invention
[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a process for preparing a quilted fabric rich in wrinkles. The obtained quilted fabric is rich in wrinkles and has good softness and comfort, aesthetics and three-dimensional sense.
[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: A process for preparing a wrinkle-rich quilted fabric comprises the following steps: (1) The pure cotton woven fabric is subjected to singeing treatment, followed by desizing, scouring, oxygen bleaching, mercerizing treatment, and then pre-shrinking treatment to obtain the treated pure cotton woven fabric; (2) Making polyester fiber into Dahua glue-free cotton; (3) stacking the treated pure cotton woven fabric and Dahua glue-free cotton in order, quilting them using a quilting machine, and then performing a post-finishing process to obtain a quilted fabric; (4) After the dye vat has been maintained and calibrated, add the dye, auxiliaries and treated water to the dye vat and stir evenly; (5) The quilted fabric is placed in a dye vat and dyed under stirring conditions, and then dried to obtain a quilted fabric with rich folds.
[0007] Furthermore, in step (1), the pure cotton woven fabric is a high-density pure cotton woven fabric with a size of JC60*60 or 90*88. The high-density pure cotton woven fabric has a dense texture, a thick feel, good wear resistance, and good light-shielding and breathability.
[0008] Furthermore, in step (1), the singeing treatment uses a gas singeing machine, the singeing temperature is 800-900°C, the burner is 2 cm away from the fabric, and the singeing speed is 80-100 m / min. Singeing can remove the fluff on the cloth surface, making the cloth surface smooth and clean, and the hair effect of the grey cloth is good, with a hair effect of ≥9 cm in 30 minutes. It can enhance the wettability of the cloth surface and has good adsorption performance for dyes, which can meet the requirements of subsequent dyeing, printing and other multi-category processing, and is conducive to obtaining uniform and bright colors, and preventing problems such as uneven dyeing in subsequent processing. Desizing removes the sizing added to the grey cloth during the weaving process to improve the water absorption performance of the fabric.
[0009] Furthermore, in step (1), the scouring temperature is 95-100°C, the vehicle speed is 60-70 m / min, and the scouring liquid is formulated as 30-35 g / L of NaOH, 3-3.3 g / L of H₂O₂, and 4-5 g / L of a scouring agent. Scouring can remove natural impurities and artificially added sizing agents from cotton fibers, thereby improving the appearance and performance of the fabric.
[0010] Furthermore, in step (1), the oxygen bleaching treatment is as follows: adjusting the pH of a 2-6 g / L hydrogen peroxide solution to 10-11 with alkali solution, heating the solution to 90-100°C, and immersing the pure cotton woven fabric in the solution for 45-60 minutes. Oxygen bleaching can further remove pigments, achieve a certain whiteness of the fabric, and make the fabric feel softer and smoother.
[0011] Furthermore, in step (1), the mercerizing treatment is as follows: immersing the pure cotton woven fabric in an alkali solution having a concentration of 20-28 wt.% and a temperature of 20-30°C under tension for 10-30 minutes at a speed of 20-50 m / min, then rinsing it with hot dilute alkali solution in an expanded state, then relaxing the tension and sending it to a de-alkali tank for thorough cleaning. Mercerizing can improve the properties of the fabric, increase its strength, and increase its gloss.
[0012] Furthermore, in step (1), the weft skew or weft arc of the pre-shrinking pure cotton woven fabric is ≤3%. After the pre-shrinking treatment, the shrinkage rate of the pure cotton woven fabric is stable, which can reduce the dimensional change of the fabric during subsequent use and reduce fabric loss.
[0013] Furthermore, in step (2), the preparation process of the Dahua glue-free cotton is as follows: the polyester fibers are opened by a licker-in device, and then sent to a secondary opening device by a fan to further break up the fiber clumps, and then the opened fibers are combed into a cotton layer with uniform thickness and uniform distribution, and then the cotton layer is sent to an oven and baked at a temperature of 160-200°C for 3-10 minutes to obtain the Dahua glue-free cotton. In the oven, the low-melting-point components on the surface of the polyester fibers are softened and melted by high-temperature hot air, and the fibers are bonded to each other, thereby strengthening the fiber web and forming a Dahua glue-free cotton with certain strength and stability. Compared with traditional glue-containing cotton, Dahua glue-free cotton does not use glue, thus avoiding the problems of odor and formaldehyde release caused by glue, and is environmentally friendly and safe.
[0014] Furthermore, in step (3), the stacking order of the treated pure cotton woven fabric and the Dahua glue-free cotton is: the middle layer is the Dahua glue-free cotton, and the upper and lower layers are the treated pure cotton woven fabric.
[0015] Furthermore, in step (3), the Dahua glue-free cotton is laid in layers, and the thickness is controlled to be 2-3 cm.
[0016] Furthermore, in step (3), the quilting method includes straight quilting, curved quilting, and backstitch quilting. Straight quilting can be used to outline the outline of the pattern, making the pattern more regular; curved quilting can express the softness and smoothness of the pattern, such as the petals of flowers, the body curves of animals, etc.; backstitch quilting can increase the density and strength of the lines, making the pattern more prominent.
[0017] Furthermore, in step (3), the quilting stitch length is 0.2-0.5 cm. During the quilting process, appropriate stitch length and thread tension can ensure the firmness and aesthetics of the quilting.
[0018] Furthermore, in step (3), the post-finishing process is: treating the quilted fabric with a high-temperature setting machine at 150-180°C and a speed of 20-25m / min for 90s. The post-finishing process can make the fabric softer and smoother, and can also make the quilting pattern more fixed.
[0019] Furthermore, in step (4), the maintenance and calibration operations of the dye vat are as follows: regularly maintain the dye vat, clean the deposits on the vat wall, replace the aged heating rod, check the smoothness of the vat wall, and the accuracy of the heating and cooling system; and calibrate the new and old dye vats to keep them consistent in terms of temperature control and stirring effect.
[0020] Furthermore, in step (4), the treated water is subjected to sedimentation treatment and is ventilated and static in a sedimentation tank for 8 hours before use.
[0021] Furthermore, in step (4), the mass ratio of the dye, the auxiliary agent and the treated water is 1:0.2:20.
[0022] Furthermore, in step (4), the auxiliary agent includes a softener and a modifier.
[0023] Furthermore, in step (5), the dyeing temperature is 60-70°C, the heating rate is 2°C / min, and the dyeing time is 40-50min. If the local temperature in the dye vat is too high or too low, the dye uptake rate will be different. Insufficient or excessive dyeing time will result in vat differences. If the time is too short, the dye cannot fully dye the fabric; if the time is too long, it may cause over-dyeing. The high temperature treatment during the dyeing process will cause the slurry on the fabric to continue to recede, creating a wrinkled and soft feeling.
[0024] The process of the present invention adopts quilting first and then dyeing. Through the overall dyeing and drying process, the fabric of the product will shrink and cause wrinkles. The resulting product has a soft texture, good hand feel, and is rich in wrinkles. Moreover, the present invention can achieve the technical effect of rich wrinkles by quilting first and then dyeing, which reduces the process steps, improves production efficiency, and reduces production costs. In addition, the color of the fabric and the interlayer cotton is consistent, showing a uniform color effect, and the interlayer cotton can effectively remove harmful substances such as fluorescent agents in the interlayer cotton after the dyeing step. The existing technology dyes the fabric first and then quilts it. Since the fabric itself is flat, the product after quilting will be flatter and smoother. The texture of the resulting product is hard and has a poor hand feel. The middle interlayer cotton is white, which is inconsistent with the color of the fabric and has a poor presentation effect. The product can only have wrinkles after dyeing, quilting, and washing, and the process steps are cumbersome.
[0025] Furthermore, in step (5), the stirring speed is 24 revolutions per minute, and the stirring mode is forward rotation for 25 seconds, stop rotation for 5 seconds, reverse rotation for 25 seconds, and stop rotation for 5 seconds. Stirring can evenly distribute the dye and auxiliaries in the dye vat. Stirring too fast or too slow can cause the fabric to become entangled and the dye to be unevenly distributed, resulting in uneven dyeing of the fabric.
[0026] Furthermore, in step (5), the drying operation is as follows: firstly spin-drying the dyed quilted knitted fabric for 10-15 minutes, and then drying it at 40-50°C for 40 minutes.
[0027] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention adopts a preparation process of quilting first and then dyeing. The fabric is quilted first. After the textile is evenly fixed, the dye can penetrate into the fiber more evenly and combine with the fiber more firmly, thereby presenting a uniform and natural dyeing effect.
[0028] (2) The present invention dyes the quilted product so that the middle layer of cotton is the same color as the fabric. The resulting product is uniform in color, has rich wrinkles, and has a good feel. The dyeing step can also effectively remove harmful substances such as fluorescent agents contained in the middle layer of cotton, which helps to improve production efficiency, speed up production progress, and reduce production costs. The current existing technology usually cuts the pre-dyed fabric before quilting, which not only takes a long preparation cycle, but also results in uneven color and poor feel of the product.
[0029] (3) The present invention strengthens the fiber structure of the textile by quilting the fabric first, thereby improving the durability and service life of the product, reducing the damage to the textile caused by high temperature and chemicals during the dyeing process, and protecting the fibers of the textile from excessive damage.
[0030] (4) The process of the present invention not only increases the decorativeness and artistry of pure cotton woven fabrics on the basis of their basic practical functions, but also enhances the aesthetics and quality of the products, increases the diversity of products, meets the diverse needs of the market, and improves the added value and market competitiveness of products. In addition, small-batch production can be carried out according to the needs of the market and consumers, thereby reducing production costs and reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a photograph of a quilted fabric prepared by dyeing first and then quilting in the prior art; Figure 2 This is a photograph of a quilted fabric prepared by the process of the present invention by first quilting and then dyeing. DETAILED DESCRIPTION
[0032] Example 1 A process for preparing a wrinkle-rich quilted fabric comprises the following steps: (1) A high-density pure cotton woven fabric with a size of JC60*60 was subjected to a singeing treatment at a temperature of 850°C and a burner distance of 2 cm from the fabric at a speed of 90 m / min, and then subjected to desizing, scouring, oxygen bleaching, mercerizing treatment in sequence, and then subjected to a pre-shrinking treatment. The weft bias or weft arc of the pure cotton woven fabric after the pre-shrinking treatment was ≤3%, thereby obtaining the treated pure cotton woven fabric; wherein, the oxygen bleaching treatment was as follows: adjusting the pH value of a hydrogen peroxide solution with a concentration of 4 g / L to 10 with alkali solution, heating to 95°C, and immersing the pure cotton woven fabric therein for 50 minutes; the mercerizing treatment was as follows: immersing the pure cotton woven fabric in an alkali solution with a concentration of 24wt.% and a temperature of 25°C under tension for 20 minutes at a speed of 35 m / min, and then rinsing with hot dilute alkali solution in an expanded state, and then relaxing the tension and sending the fabric into a de-alkali box for thorough cleaning; (2) The polyester fibers are opened by a licker-in device and sent to a secondary opening device by a fan to further break up the fiber clumps. The opened fibers are then combed into a cotton layer with uniform thickness and distribution. The cotton layer is then sent to an oven and baked at 180°C for 6 minutes to obtain Dahua glue-free cotton. (3) The treated pure cotton woven fabric and Dahua glue-free cotton are stacked neatly in order, with the middle layer being Dahua glue-free cotton and the upper and lower layers being the treated pure cotton woven fabric. A quilting machine is used for linear quilting with a quilting stitch length of 0.3 cm, and then a post-finishing process is performed to obtain a quilted fabric; (4) After the dye vat has been maintained and calibrated, dye, auxiliaries, and treated water are added to the dye vat at a mass ratio of 1:0.2:20 and stirred evenly; (5) The quilted fabric is placed in a dye vat and stirred for dyeing. The stirring speed is 24 turns per minute. The stirring method is forward rotation for 25 seconds, stop for 5 seconds, then reverse rotation for 25 seconds, stop for 5 seconds. The dyeing temperature is 60°C, the heating rate is 2°C / min, the dyeing time is 50 minutes, and then it is spun dry for 13 minutes and then dried at 45°C for 40 minutes to obtain a quilted fabric rich in wrinkles.
[0033] Example 2 A process for preparing a wrinkle-rich quilted fabric comprises the following steps: (1) A high-density pure cotton woven fabric of size JC90*88 was subjected to singeing treatment at a temperature of 800℃ and a burner distance of 2cm from the fabric at a speed of 80m / min, and then subjected to desizing, scouring, oxygen bleaching, mercerizing treatment in sequence, and then subjected to pre-shrinking treatment. The weft bias or weft arc of the pure cotton woven fabric after pre-shrinking treatment was ≤3%, thereby obtaining the treated pure cotton woven fabric; wherein, the oxygen bleaching treatment was as follows: adjusting the pH value of a hydrogen peroxide solution with a concentration of 2g / L to 11 with alkali solution, heating to 90℃, and immersing the pure cotton woven fabric therein for 60min; the mercerizing treatment was as follows: immersing the pure cotton woven fabric in an alkali solution with a concentration of 20wt.% and a temperature of 30℃ under the action of tension for 30min, at a speed of 20m / min, and then rinsing with hot dilute alkali solution in an expanded state, then relaxing the tension, and sending the fabric into a de-alkali box for thorough cleaning; (2) The polyester fibers are opened by a licker-in device and sent to a secondary opening device by a fan to further break up the fiber clumps. The opened fibers are then combed into a cotton layer with uniform thickness and distribution. The cotton layer is then sent to an oven and baked at 160°C for 10 minutes to obtain Dahua glue-free cotton. (3) The treated pure cotton woven fabric and Dahua glue-free cotton are stacked neatly in order, with the middle layer being Dahua glue-free cotton and the upper and lower layers being the treated pure cotton woven fabric. A quilting machine is used for curve quilting with a quilting stitch length of 0.2 cm, and then a post-finishing process is performed to obtain a quilted fabric; (4) After the dye vat has been maintained and calibrated, dye, auxiliaries, and treated water are added to the dye vat at a mass ratio of 1:0.2:20 and stirred evenly; (5) The quilted fabric is placed in a dye vat and stirred for dyeing. The stirring speed is 24 turns per minute. The stirring method is forward rotation for 25 seconds, stop for 5 seconds, then reverse rotation for 25 seconds, stop for 5 seconds. The dyeing temperature is 65°C, the heating rate is 2°C / min, the dyeing time is 45 minutes, and then the fabric is spun dry for 15 minutes and then dried at 40°C for 40 minutes to obtain a quilted fabric rich in wrinkles.
[0034] Example 3 A process for preparing a wrinkle-rich quilted fabric comprises the following steps: (1) A high-density pure cotton woven fabric of size JC60*60 was subjected to singeing treatment at a temperature of 900°C and a burner distance of 2 cm from the fabric at a speed of 100 m / min, and then subjected to desizing, scouring, oxygen bleaching, mercerizing treatment in sequence, and then subjected to pre-shrinking treatment. The weft bias or weft arc of the pure cotton woven fabric after pre-shrinking treatment was ≤3%, thereby obtaining the treated pure cotton woven fabric; wherein, the oxygen bleaching treatment was as follows: adjusting the pH value of a hydrogen peroxide solution with a concentration of 6 g / L to 10 with alkali solution, heating to 100°C, and immersing the pure cotton woven fabric therein for 45 minutes; the mercerizing treatment was as follows: immersing the pure cotton woven fabric in an alkali solution with a concentration of 28wt.% and a temperature of 20°C under tension for 10 minutes at a speed of 50 m / min, and then rinsing with hot dilute alkali solution in an expanded state, and then relaxing the tension and sending the fabric into a de-alkali box for thorough cleaning; (2) The polyester fibers are opened by a licker-in device and sent to a secondary opening device by a fan to further break up the fiber clumps. The opened fibers are then combed into a cotton layer with uniform thickness and distribution. The cotton layer is then sent to an oven and baked at 200°C for 3 minutes to obtain Dahua glue-free cotton. (3) The treated pure cotton woven fabric and Dahua glue-free cotton are stacked neatly in order, with the middle layer being Dahua glue-free cotton and the upper and lower layers being the treated pure cotton woven fabric. A quilting machine is used for backstitch quilting with a quilting stitch length of 0.5 cm, and then a post-finishing process is performed to obtain a quilted fabric; (4) After the dye vat has been maintained and calibrated, dye, auxiliaries, and treated water are added to the dye vat at a mass ratio of 1:0.2:20 and stirred evenly; (5) The quilted fabric is placed in a dye vat and stirred for dyeing. The stirring speed is 24 turns per minute. The stirring method is forward rotation for 25 seconds, stop for 5 seconds, then reverse rotation for 25 seconds, stop for 5 seconds. The dyeing temperature is 70°C, the heating rate is 2°C / min, the dyeing time is 40 minutes, and then the fabric is spun dry for 10 minutes and then dried at 50°C for 40 minutes to obtain a quilted fabric rich in wrinkles.
[0035] Comparative Example 1 A preparation process for a quilted fabric comprises the following steps: (1) A high-density pure cotton woven fabric with a size of JC60*60 was subjected to a singeing treatment at a temperature of 850°C and a burner distance of 2 cm from the fabric at a speed of 90 m / min, and then subjected to desizing, scouring, oxygen bleaching, mercerizing treatment in sequence, and then subjected to a pre-shrinking treatment. The weft bias or weft arc of the pure cotton woven fabric after the pre-shrinking treatment was ≤3%, thereby obtaining the treated pure cotton woven fabric; wherein, the oxygen bleaching treatment was as follows: adjusting the pH value of a hydrogen peroxide solution with a concentration of 4 g / L to 10 with alkali solution, heating to 95°C, and immersing the pure cotton woven fabric therein for 50 minutes; the mercerizing treatment was as follows: immersing the pure cotton woven fabric in an alkali solution with a concentration of 24wt.% and a temperature of 25°C under tension for 20 minutes at a speed of 35 m / min, and then rinsing with hot dilute alkali solution in an expanded state, and then relaxing the tension and sending the fabric into a de-alkali box for thorough cleaning; (2) After the dye vat has been maintained and calibrated, dye, auxiliaries, and treated water are added to the dye vat at a mass ratio of 1:0.2:20 and stirred evenly; (3) The treated pure cotton woven fabric is placed in a dyeing vat and stirred for dyeing. The stirring speed is 24 turns per minute. The stirring mode is forward rotation for 25 seconds, stop for 5 seconds, then reverse rotation for 25 seconds, stop for 5 seconds. The dyeing temperature is 60°C, the heating rate is 2°C / min, the dyeing time is 50 minutes, and then the fabric is dried for 13 minutes and then dried at 45°C for 40 minutes to obtain the dyed pure cotton woven fabric. (4) The polyester fibers are opened by a licker-in device and sent to a secondary opening device by a fan to further break up the fiber clumps. The opened fibers are then combed into a cotton layer with uniform thickness and distribution. The cotton layer is then sent to an oven and baked at 180°C for 6 minutes to obtain Dahua glue-free cotton. (5) The dyed pure cotton woven fabric and Dahua glue-free cotton are stacked neatly in order, with the middle layer being Dahua glue-free cotton and the upper and lower layers being dyed pure cotton woven fabric. A quilting machine is used for straight-line quilting with a quilting stitch length of 0.3 cm, and then the finishing process is carried out to obtain a quilted fabric.
[0036] Comparative Example 2 A preparation process for a quilted fabric comprises the following steps: (1) A high-density pure cotton woven fabric with a size of JC60*60 was subjected to a singeing treatment at a temperature of 850°C and a burner distance of 2 cm from the fabric at a speed of 90 m / min, and then subjected to desizing, scouring, oxygen bleaching, mercerizing treatment in sequence, and then subjected to a pre-shrinking treatment. The weft bias or weft arc of the pure cotton woven fabric after the pre-shrinking treatment was ≤3%, thereby obtaining the treated pure cotton woven fabric; wherein, the oxygen bleaching treatment was as follows: adjusting the pH value of a hydrogen peroxide solution with a concentration of 4 g / L to 10 with alkali solution, heating to 95°C, and immersing the pure cotton woven fabric therein for 50 minutes; the mercerizing treatment was as follows: immersing the pure cotton woven fabric in an alkali solution with a concentration of 24wt.% and a temperature of 25°C under tension for 20 minutes at a speed of 35 m / min, and then rinsing with hot dilute alkali solution in an expanded state, and then relaxing the tension and sending the fabric into a de-alkali box for thorough cleaning; (2) After the dye vat has been maintained and calibrated, dye, auxiliaries, and treated water are added to the dye vat at a mass ratio of 1:0.2:20 and stirred evenly; (3) The treated pure cotton woven fabric is placed in a dyeing vat and stirred for dyeing. The stirring speed is 24 turns per minute. The stirring mode is forward rotation for 25 seconds, stop for 5 seconds, then reverse rotation for 25 seconds, stop for 5 seconds. The dyeing temperature is 60°C, the heating rate is 2°C / min, the dyeing time is 50 minutes, and then the fabric is dried for 13 minutes and then dried at 45°C for 40 minutes to obtain the dyed pure cotton woven fabric. (4) The polyester fibers are opened by a licker-in device and sent to a secondary opening device by a fan to further break up the fiber clumps. The opened fibers are then combed into a cotton layer with uniform thickness and distribution. The cotton layer is then sent to an oven and baked at 180°C for 6 minutes to obtain Dahua glue-free cotton. (5) The dyed pure cotton woven fabric and Dahua glue-free cotton are stacked neatly in order, with the middle layer being Dahua glue-free cotton and the upper and lower layers being the dyed pure cotton woven fabric. A quilting machine is used for straight quilting with a quilting stitch length of 0.3 cm, and then a post-finishing process is performed to obtain a dyed quilted fabric; (6) The dyed quilted fabric was washed with water, dried for 13 minutes, and then dried at 45°C for 40 minutes to obtain the quilted fabric.
[0037] Experimental Example 1 The appearance and comfort of the quilted fabrics of Examples 1-3 and Comparative Examples 1-2 were tested, and the test results are listed in Table 1.
[0038] Table 1. Appearance and comfort of quilted fabrics From Table 1 and Appendix Figure 1-2It can be seen that the quilted fabric prepared by the process of quilting first and then dyeing of the present invention has a good sense of wrinkles, excellent aesthetics and three-dimensional sense, and a soft surface, good comfort and good hand feel. The quilted fabric prepared by the process of dyeing the cloth first and then quilting in Comparative Example 1 has poor sense of wrinkles, poor three-dimensional sense, poor aesthetics, hard texture, poor hand feel and poor comfort. Comparative Example 2 adopts the process of dyeing first and then quilting, and then washing and drying. The quilted fabric obtained has poor sense of wrinkles and three-dimensional sense, hard texture, poor comfort and bad hand feel. Although the sense of wrinkles and comfortable hand feel of the quilted fabric of Comparative Example 2 are better than those of Comparative Example 1, they are still worse than those of the embodiments of the present invention. It shows that the quilted fabric prepared by the process of the present invention has a rich sense of wrinkles, a soft surface, good comfort and good hand feel.
[0039] Experimental Example 2 The fluorescent agent content of the middle layer cotton of the quilted fabrics of Example 1 and Comparative Examples 1-2 was tested using an ultraviolet lamp. The test results are listed in Table 2.
[0040] Table 2. Fluorescent agent content of middle layer cotton The intensity of fluorescence is used to characterize the fluorescent agent content. The higher the fluorescent agent content, the stronger the fluorescence emitted. If the cotton emits strong blue-white fluorescence, it indicates a high content of fluorescent whitening agent; if it emits almost no light, it indicates a low or no fluorescent whitening agent content. As shown in Table 2, after irradiation with a UV lamp, the fluorescence intensity of the middle layer cotton in Example 1 is weak, indicating a low fluorescent agent content. The fluorescence intensity of the middle layer cotton in Comparative Example 1 is strong, indicating a high fluorescent agent content. The fluorescence intensity of the middle layer cotton in Comparative Example 2 is weak, indicating a low fluorescent agent content. This shows that the present invention's process of quilting before dyeing can effectively remove harmful substances such as fluorescent agents from the middle layer cotton. The resulting quilted fabric has a rich wrinkle feel and a good hand. It also reduces process steps, saves time, manpower, and material resources, and reduces production costs.
Claims
1. A process for preparing a wrinkle-rich quilted fabric, characterized in that: The following steps are involved: (1) The pure cotton woven fabric is subjected to singeing treatment, followed by desizing, scouring, oxygen bleaching, mercerizing treatment, and then pre-shrinking treatment to obtain the treated pure cotton woven fabric; (2) Making polyester fiber into Dahua glue-free cotton; (3) stacking the treated pure cotton woven fabric and Dahua glue-free cotton in order, and quilting them using a quilting machine to obtain quilted fabric; (4) The quilted fabric is subjected to a finishing process to obtain a qualified quilted fabric; (5) After the dye vat has been maintained and calibrated, add the dye, auxiliaries and treated water to the dye vat and stir evenly; (6) The qualified quilted fabric is placed in a dyeing vat for dyeing under stirring conditions, and then dried to obtain a quilted fabric rich in wrinkles.
2. The process for preparing the wrinkle-rich quilted fabric according to claim 1, wherein: In step (1), the weft skew or weft arc of the pre-shrinkage treated pure cotton woven fabric is ≤3%.
3. The process for preparing the wrinkle-rich quilted fabric according to claim 1, wherein: In step (3), the stacking order of the treated pure cotton woven fabric and the Dahua glue-free cotton is: the middle layer is the Dahua glue-free cotton, and the upper and lower layers are the treated pure cotton woven fabric.
4. The process for preparing the wrinkle-rich quilted fabric according to claim 3, wherein: In step (3), the Dahua glue-free cotton is laid in layers, and the thickness is controlled to be 2-3 cm.
5. The process for preparing the wrinkle-rich quilted fabric according to claim 1, wherein: In step (3), the quilting stitch length is 0.2-0.5 cm.
6. The process for preparing the wrinkle-rich quilted fabric according to claim 5, characterized in that: In step (3), the post-finishing process is: treating the quilted fabric with a high-temperature setting machine at 150-180° C. and a speed of 20-25 m / min for 90 seconds.
7. The process for preparing the wrinkle-rich quilted fabric according to claim 6, characterized in that: In step (5), the dyeing temperature is 60-70°C, the heating rate is 2°C / min, and the dyeing time is 40-50min.
8. The process for preparing the wrinkle-rich quilted fabric according to any one of claims 1 to 7, characterized in that: In step (5), the stirring speed is 24 revolutions per minute, and the stirring mode is forward rotation for 25 seconds, stop rotation for 5 seconds, reverse rotation for 25 seconds, and stop rotation for 5 seconds.