Soft and breathable down jacket fabric with heat preservation function and production method thereof

Abstract

The application discloses a soft and breathable down jacket fabric with heat preservation function and a production method thereof. The fabric is woven by synthetic fiber yarns, and a plurality of through holes are distributed on the side wall of the synthetic fiber yarns. The through holes are distributed along the diameter direction of the synthetic fiber yarns, the distance between adjacent through holes along the length direction of the synthetic fiber yarns is equal, and the diameter direction of each through hole is a setting angle rotated in the same circumferential direction. After weaving, the orifices of part of the through holes are shielded, forming full-closed holes or semi-closed holes with air locking function. The application uses synthetic fiber as the weaving raw material, adopts the processing flow of yarn punching first and then weaving, and cooperates with a special punching process, so that a large number of open holes, semi-closed holes and full-closed holes are distributed on the fabric, the ventilation and heat preservation effects are obviously improved, and the softness of the fabric is very outstanding. In addition, the fabric also retains the advantages of the synthetic fiber, such as durability and difficulty in deformation and wrinkle.

Description

Technical Field

[0001] This invention relates to the field of fabric preparation technology, specifically to a soft and breathable down jacket fabric with heat insulation function and its production method. Background Technology

[0002] As people's living standards improve, down jackets have become the preferred choice for keeping warm in winter. Because down jackets are filled with down feathers, they are relatively thick and heavy. This can prevent body heat and moisture from escaping quickly enough, potentially leading to a stuffy and damp environment inside the garment, reducing comfort, and even causing unpleasant odors. Therefore, down jacket fabrics require high breathability.

[0003] Existing breathable fabrics for down jackets are mainly made of natural fibers such as cotton and silk, which have excellent breathability and moisture absorption, and a soft feel. However, natural fibers generally have low strength, poor elasticity, are prone to deformation and wrinkling, and have only average insulation properties. Therefore, existing breathable fabrics for down jackets cannot simultaneously possess the advantages of both warmth and durability.

[0004] Synthetic fibers, an important component of the modern textile industry, are textile-valued fibers produced by polymerizing small monomer molecules through chemical methods. These fibers differ significantly from traditional natural fibers (such as cotton, linen, silk, and wool) in performance, applications, and production processes. Synthetic fibers offer advantages such as high strength, ease of processing, durability, and versatility; however, their moisture absorption is generally poor, leading to a stuffy feeling when worn and hindering the expulsion and evaporation of sweat. Furthermore, their softness cannot compare to natural fibers, thus they are generally not used as raw materials for breathable down jacket fabrics and have been abandoned. Summary of the Invention

[0005] The purpose of this invention is to provide a soft and breathable down jacket fabric with heat insulation function and its production method. It uses synthetic fibers as textile raw materials and solves the defects of existing breathable down jacket fabrics made of natural fibers in terms of heat insulation, durability, and easy deformation.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A soft and breathable down jacket fabric with heat insulation function, the fabric is woven from synthetic fiber yarn, and a number of through holes are distributed on the side wall of the synthetic fiber yarn. The through holes are distributed along the diameter direction of the synthetic fiber yarn, the distance between adjacent through holes along the length direction of the synthetic fiber yarn is equal, and the diameter direction of each through hole is rotated and staggered by a set angle along the same circumference.

[0008] After the synthetic fiber yarn is woven, the openings of some of the through holes are blocked, forming fully closed or semi-closed holes with the function of locking air.

[0009] Further improvement lies in that the synthetic fiber is selected from one or more of polyester fiber, nylon fiber, polypropylene fiber, acrylic fiber, spandex fiber and vinylon fiber.

[0010] Further improvement lies in that the distance between adjacent through holes in the length direction of the synthetic fiber yarn is 1-1.5 times of the diameter of the synthetic fiber yarn.

[0011] Further improvement lies in that the aperture of the through hole is 0.15-0.25 times of the diameter of the synthetic fiber yarn.

[0012] Further improvement lies in that the set angle is 6-18 degrees.

[0013] The application also provides a production method of the soft and breathable down jacket fabric with heat preservation function.

[0014] S1, taking synthetic fibers, and obtaining synthetic fiber yarns through a spinning process;

[0015] S2, taking the synthetic fiber yarns, and using a laser drilling technology to drill a plurality of through holes on the side wall of the synthetic fiber yarns;

[0016] S3, taking the synthetic fiber yarns after drilling as warp and weft, and obtaining the soft and breathable down jacket fabric with heat preservation function through a weaving process.

[0017] Further improvement lies in that the specific process of step S2 is as follows:

[0018] placing a plurality of synthetic fiber yarns side by side on the operation table of the laser drilling machine, fixing the two ends of each synthetic fiber yarn with a connecting head and straightening the synthetic fiber yarn, and aiming a plurality of laser emitters at the side wall of the synthetic fiber yarn one by one to drill holes;

[0019] Then, the angle of each synthetic fiber yarn is adjusted synchronously through the connecting head, and each laser emitter is moved synchronously along the length direction of the synthetic fiber to continue drilling, and the process is repeated until the side wall of the synthetic fiber yarn is uniformly distributed with through holes.

[0020] The application has the advantages that: the application uses synthetic fibers as textile raw materials, adopts the processing flow of yarn drilling first and then spinning, and cooperates with a special drilling process, so that a large number of open holes, semi-closed holes and fully-closed holes are distributed on the fabric, the ventilation and heat preservation effects are obviously improved, and the softness of the fabric in any direction is very outstanding; in addition, the fabric also retains the advantages of synthetic fibers such as durability and resistance to deformation and wrinkling. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure diagram of the synthetic fiber yarn used in the application;

[0022] Figure 2 For Figure 1 Cross-sectional view of different positions. DETAILED DESCRIPTION

[0023] The following further describes the present application in conjunction with the accompanying drawings. It is necessary to point out that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0024] Example 1

[0025] As Figure 1 and Figure 2 shown, a soft and breathable down jacket fabric with heat preservation function, the fabric is woven by polyester fiber yarn, the side wall of the polyester fiber yarn is distributed with a plurality of through holes, the aperture of the through hole is 0.2 times the diameter of the polyester fiber yarn, the through holes are distributed along the diameter direction of the polyester fiber yarn, the distance between adjacent through holes along the length direction of the polyester fiber yarn is equal, which is 1 times the diameter of the polyester fiber yarn, and the diameter direction of each through hole is rotated by 18° along the same circumference in turn.

[0026] After weaving of the polyester fiber yarn, the orifices of part of the through holes are shielded, forming full-closed or semi-closed holes with air locking function.

[0027] The production method of the soft and breathable down jacket fabric with heat preservation function, the steps include:

[0028] S1, take polyester fiber, through melt spinning process (spinning temperature 290℃, extrusion pressure 6.5MPa), get polyester fiber yarn with diameter of 60μm;

[0029] S2, take the polyester fiber yarn, use laser drilling technology to drill a plurality of through holes with diameter of 12μm on the side wall of the polyester fiber yarn; specifically: place a plurality of polyester fiber yarns side by side on the operation table of the laser drilling machine, use the connecting head to fix the two ends of each polyester fiber yarn respectively and straighten the polyester fiber yarn, use a plurality of laser emitters to align the side wall of the polyester fiber yarn one by one, and drill; then, rotate 18° synchronously through the connecting head to adjust the angle of each polyester fiber yarn, and move each laser emitter 60μm along the length direction of the polyester fiber synchronously, continue drilling, repeat the process until the side wall of the polyester fiber yarn is evenly distributed with through holes.

[0030] S3, taking the punched polyester fiber yarn as the warp and weft, and through weaving process (warp density 650 roots / 10 cm, weft density 400 roots / 10 cm), the soft and breathable down jacket fabric with heat preservation function is obtained.

[0031] Embodiment 2

[0032] A soft and breathable down jacket fabric with heat preservation function is provided, which is woven from polypropylene fiber yarn, and a plurality of through holes are distributed on the side wall of the polypropylene fiber yarn, the aperture of the through hole is 0.25 times the diameter of the polypropylene fiber yarn, the through holes are distributed along the diameter direction of the polypropylene fiber yarn, the distance between adjacent through holes along the length direction of the polypropylene fiber yarn is equal, which is 1.2 times the diameter of the polypropylene fiber yarn, and the diameter direction of each through hole is rotated by 10° along the same circumference.

[0033] After weaving of the polypropylene fiber yarn, the orifices of part of the through holes are blocked, forming full-closed or semi-closed holes with air locking function.

[0034] The production method of the soft and breathable down jacket fabric with heat preservation function includes the following steps:

[0035] S1, taking polypropylene fiber, through melt spinning process (spinning temperature 250℃, extrusion pressure 8.0MPa), polypropylene fiber yarn with a diameter of 50μm is obtained;

[0036] S2, taking the polypropylene fiber yarn, using laser drilling technology, a plurality of through holes with a diameter of 12.5μm are drilled on the side wall of the polypropylene fiber yarn; specifically, a plurality of polypropylene fiber yarns are placed side by side on the operating table of the laser drilling machine, the two ends of each polypropylene fiber yarn are fixed by a connecting head and the polypropylene fiber yarn is straightened, a plurality of laser emitters are aligned with the side wall of the polypropylene fiber yarn one by one, and drilling is performed; then, the connecting head is rotated by 10° synchronously, the angle of each polypropylene fiber yarn is adjusted, and each laser emitter is moved 60μm along the length direction of the polypropylene fiber synchronously, drilling is continued, and the process is repeated until the side wall of the polypropylene fiber yarn is evenly distributed with through holes.

[0037] S3, taking the punched polypropylene fiber yarn as the warp and weft, and through weaving process (warp density 700 roots / 10 cm, weft density 450 roots / 10 cm), the soft and breathable down jacket fabric with heat preservation function is obtained.

[0038] Embodiment 3

[0039] The application discloses a soft and breathable down jacket fabric with a heat preservation function, which is woven by nylon fiber yarns, wherein the side wall of the nylon fiber yarns is provided with a plurality of through holes, the diameter of the through holes is 0.15 times the diameter of the nylon fiber yarns, the through holes are distributed along the diameter direction of the nylon fiber yarns, the distance between adjacent through holes along the length direction of the nylon fiber yarns is equal, and is 1.5 times the diameter of the nylon fiber yarns, and the diameter directions of the through holes are sequentially and staggered by 6 degrees along the same circumference.

[0040] The orifices of part of the through holes of the nylon fiber yarns after weaving are shielded, so that full-closed holes or semi-closed holes with the function of locking air are formed.

[0041] The production method of the soft and breathable down jacket fabric with the heat preservation function comprises the following steps:

[0042] S1, nylon fibers are taken, and nylon fiber yarns with a diameter of 60 microns are obtained through a melt spinning process (spinning temperature 260 DEG C, extrusion pressure 5.0 MPa);

[0043] S2, the nylon fiber yarns are taken, and a plurality of through holes with a diameter of 9 microns are punched on the side wall of the nylon fiber yarns by using a laser punching technology; specifically, a plurality of nylon fiber yarns are placed side by side on the operation table of a laser punching machine, a connecting head is used to fix the two ends of each nylon fiber yarn and straighten the nylon fiber yarn, a plurality of laser emitters are used to align the side wall of the nylon fiber yarn one by one, and punching is performed; then, the connecting head is synchronously rotated by 6 degrees to adjust the angle of each nylon fiber yarn, and each laser emitter is synchronously moved by 90 microns along the length direction of the nylon fiber, and the punching is continued, and the process is repeated until the side wall of the nylon fiber yarn is uniformly distributed with through holes.

[0044] S3, the punched nylon fiber yarns are taken as warp and weft, and the soft and breathable down jacket fabric with the heat preservation function is obtained through a weaving process (warp density 600 roots / 10 cm, weft density 380 roots / 10 cm).

[0045] Comparative example 1

[0046] The application discloses a soft and breathable down jacket fabric with a heat preservation function, which is woven by nylon fiber yarns, wherein the side wall of the nylon fiber yarns is provided with a plurality of through holes, the diameter of the through holes is 0.15 times the diameter of the nylon fiber yarns, the through holes are distributed along the diameter direction of the nylon fiber yarns, the distance between adjacent through holes along the length direction of the nylon fiber yarns is equal, and is 1.5 times the diameter of the nylon fiber yarns, and the diameter directions of the through holes are sequentially and staggered by 6 degrees along the same circumference.

[0047] The orifices of part of the through holes of the nylon fiber yarns after weaving are shielded, so that full-closed holes or semi-closed holes with the function of locking air are formed.

[0048] The production method of the soft and breathable down jacket fabric with heat preservation function includes the following steps:

[0049] S1, take polyester fiber, through melt spinning process (spinning temperature 290℃, extrusion pressure 6.5MPa), get polyester fiber yarn with diameter of 60μm;

[0050] S2, take the polyester fiber yarn, use laser drilling technology to drill several through holes with diameter of 12μm on the side wall of the polyester fiber yarn; specifically, place multiple polyester fiber yarns side by side on the operation table of the laser drilling machine, use the connecting head to fix the two ends of each polyester fiber yarn and straighten the polyester fiber yarn, use multiple laser emitters to align with the side wall of the polyester fiber yarn one by one, and drill holes; then, move each laser emitter 60μm along the length direction of the polyester fiber synchronously, continue drilling, and repeat the process until the side wall of the polyester fiber yarn is evenly distributed with through holes.

[0051] S3, take the perforated polyester fiber yarn as warp and weft, through weaving process (warp density 650 strands / 10cm, weft density 400 strands / 10cm), get the soft and breathable down jacket fabric with heat preservation function.

[0052] Control group

[0053] A natural fiber down jacket fabric, the fabric is woven from pure cotton fiber yarn, the diameter of the pure cotton fiber yarn is 60μm, which is used as warp and weft, through weaving process (warp density 650 strands / 10cm, weft density 400 strands / 10cm), get the natural fiber down jacket fabric.

[0054] Take the soft and breathable down jacket fabric with heat preservation function prepared in Example 1, Comparative Example 1 and the control group, randomly take 10 samples from each group, and test the performance as follows:

[0055] (1) Heat retention performance: according to GB / T11048-2018 "Determination of thermal and moisture resistance of textiles under steady-state conditions for physiological comfort", use static plate method to determine the heat retention rate of the fabric on YG606E flat plate type textile heat retention instrument, and the test temperature is 38℃.

[0056] (2) Softness: use sensory touch method, test the softness of the fabric by 20 professional sensory evaluation personnel with high tactile sensitivity, in the evaluation test, grade the softness: 1st grade: very soft, smooth hand feeling; 2nd grade: relatively soft; 3rd grade: stiff and rough hand feeling. The final rating result of each example and comparative example is the grade with the most number of evaluators.

[0057] (3) Air permeability: The air permeability of the sample was tested using a YG461G fabric full-automatic air permeability tester according to the national standard (GB / T5433). The specific parameters of the experiment were set as follows: an ambient temperature of 25°C, a relative humidity of 60%, a pressure difference of 100 Pa, an air permeable area of 20 cm2, and a diameter of the air nozzle of 0.8 mm. The fabric sample was tested at 10 different positions, and the average value was taken as the final air permeability data.

[0058] (4) Wrinkle resistance: The fabric samples of each group were cut into a "convex" shape, and the crease perpendicular recovery method in GB / T3819-1997 "Determination of the crease recovery of textile fabrics - Recovery angle method" was used to measure the crease recovery angle of the sample. The greater the crease recovery angle, the better the wrinkle resistance, and vice versa.

[0059] (5) Tensile strength: The stress-strain test was performed on the sample using a Q800 dynamic mechanical analyzer (DMA, TA Instruments) to determine the strength of the sample. The sample was cut into a long strip with a size of 30x10 mm and placed in a tensile clamp, one end of which was fixed and the other end could move with the clamp. The temperature was kept at 20°C, the frequency was set to 1 Hz, and the stress was gradually increased from 0 at a speed of 5 MPa / s. The strain change of the sample was recorded until the sample broke. The stress at the breaking point was taken as the tensile strength of the sample.

[0060] The test results of the above-mentioned items (the average value of 10 samples in each group, the softness grade was the grade with the most occurrences) were statistically obtained in Table 1:

[0061] Table 1: Performance test results summary table of Example 1, Comparative Example 1 and Control Group

[0062] Group Insulation rate Softness level Air permeability Crease recovery angle Tensile strength Example 1 66.2％ 1st 269.5 mm / s 204° 8.31 MPa Comparative Example 1 41.6％ 2nd 204.1 mm / s 208° 8.26 MPa Control 37.8％ 1st 211.7 mm / s 101° 4.87 MPa

[0063] As can be seen from Table 1, the down jacket fabric prepared in Example 1 of the present application has good thermal insulation performance, softness, air permeability, wrinkle resistance and mechanical properties. The reason is that the orifices of some of the through holes are blocked after the polyester fiber yarn is woven, forming full or half closed holes with air locking function, which plays a role in thermal insulation, while the remaining unblocked through holes are open, which plays a role in air permeability, and the air permeability is even better than that of pure cotton fabric. In addition, the overall spiral distribution of the hole structure is beneficial to the bending and compression of the fabric, so that the softness of the fabric in any direction is very outstanding, which is comparable to that of pure cotton fabric, and at the same time, it avoids the fabric in a certain direction being too soft, which affects the texture and shaping; the wrinkle resistance and tensile strength are the advantages of polyester fiber itself. In Comparative Example 1, the diameters of the through holes are parallel to each other, that is, they are not rotated and staggered, and the direction remains the same, which makes it difficult to form closed holes during the subsequent interweaving process, or the extreme case of all closed holes on one yarn, and the softness also has obvious directionality, resulting in unstable thermal insulation rate, softness grade and air permeability, and the average level decreases, for example, the air permeability is not as good as that of pure cotton fiber.

[0064] The above-described examples only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A soft and breathable down jacket fabric with heat-insulating function, characterized in that, The fabric is woven from synthetic fiber yarns. Several through holes are distributed on the sidewalls of the synthetic fiber yarns. The through holes are distributed along the diameter direction of the synthetic fiber yarns. The distance between adjacent through holes along the length direction of the synthetic fiber yarns is equal. The diameter direction of each through hole is rotated and staggered by a set angle along the same circumference. The set angle is 6°-18°. After the synthetic fiber yarn is woven, the openings of some of the through holes are blocked, forming fully closed or semi-closed holes with the function of locking air.

2. The soft and breathable down jacket fabric with heat-insulating function according to claim 1, characterized in that, The synthetic fiber is selected from one or more of polyester fiber, nylon fiber, polypropylene fiber, acrylic fiber, spandex fiber, and vinylon fiber.

3. The soft and breathable down jacket fabric with heat-insulating function according to claim 1, characterized in that, The distance between adjacent through holes along the length of the synthetic fiber yarn is 1 to 1.5 times the diameter of the synthetic fiber yarn.

4. The soft and breathable down jacket fabric with heat-insulating function according to claim 1, characterized in that, The diameter of the through hole is 0.15-0.25 times the diameter of the synthetic fiber yarn.

5. A method for producing a soft and breathable down jacket fabric with heat-insulating function as described in any one of claims 1-4, characterized in that the steps include... include: S1. Take synthetic fibers and obtain synthetic fiber yarn through a spinning process; S2. Take the synthetic fiber yarn and use laser drilling technology to drill several through holes on the side wall of the synthetic fiber yarn. S3. Take the perforated synthetic fiber yarn as warp and weft, and through weaving process, obtain the soft and breathable down jacket fabric with heat preservation function.

6. The method for producing the soft and breathable down jacket fabric with heat-insulating function according to claim 5, characterized in that, The specific process of step S2 is as follows: Multiple synthetic fiber yarns are placed side by side on the operating table of the laser drilling machine. The two ends of each synthetic fiber yarn are fixed with connectors and the synthetic fiber yarns are straightened. Multiple laser emitters are used to align with the side walls of the synthetic fiber yarns to make holes. Next, the angle of each synthetic fiber yarn is adjusted by synchronously rotating the connector, and each laser emitter is moved synchronously along the length of the synthetic fiber to continue drilling. This process is repeated until the sidewalls of the synthetic fiber yarns are evenly distributed with through holes.

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