Preparation method of penguin-imitating velvet fabric and fabric thereof

Abstract

The present application relates to the technical field of textiles, and particularly relates to a preparation method of a penguin-imitating velvet and a fabric thereof. The preparation method of the penguin-imitating velvet fabric comprises the following steps: warping, knitting a face yarn, a ground yarn and a connecting yarn on a double needle bed warp knitting machine to obtain a gray fabric with a double layer and a connecting line in the middle, and then carrying out splitting, pre-setting, glazing, dyeing and / or printing, drying, intermediate setting, raising finishing, blowing and final setting; wherein the blowing treatment mode comprises: sequentially performing first blowing treatment, second blowing treatment and third blowing treatment, and the blowing angle of the first blowing treatment, the blowing angle of the second blowing treatment and the blowing angle of the third blowing treatment decrease in sequence. The fabric prepared in the present application has excellent anti-pilling, softness and warmth.

Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to a penguin-down-like fabric and its preparation method. Background Technology

[0002] With the upgrading of consumption, the market demand for fleece fabrics has evolved from simply providing warmth to offering a superior tactile experience. Penguins, birds that live in polar regions, have feathers that are soft, extremely dense, and silky to the touch. Existing fleece-like fabrics mainly include plush, coral fleece, and flannel products. To achieve a soft feel, fabrics on the market often reduce fiber twist or use fine denier fibers, but this significantly increases the tendency to pill. If resin finishing is used to improve the anti-pilling grade, softness is sacrificed. In other words, existing fabrics struggle to achieve a balance between softness and high anti-pilling performance.

[0003] Therefore, it is necessary to develop a biomimetic fabric similar to penguin feathers that has excellent softness and high anti-pilling properties. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing fabrics are difficult to balance between excellent softness and high anti-pilling grade, and to provide a penguin down-like fabric and its preparation method.

[0005] In a first aspect, the present invention provides a method for preparing penguin down-like fabric, comprising the following steps:

[0006] (1) Weaving: The face yarn, ground yarn and connecting yarn are warped and woven on a double needle bed warp knitting machine to obtain a double-layered greige fabric with a connecting line in the middle;

[0007] (2) Cutting: Cut along the double-layered fabric with the connecting line in the middle to obtain two pieces of fabric;

[0008] (3) Pre-forming: Pre-forming the greige fabric after it has been split;

[0009] (4) Heat pressing: The pre-shaped fabric is heat pressed;

[0010] (5) Dyeing and / or printing: Dyeing or printing on the greige fabric after heat treatment;

[0011] (6) Drying: Drying the dyed and / or printed fabric;

[0012] (7) Intermediate setting: The dried fabric is subjected to intermediate setting treatment;

[0013] (8) Ruffling finishing: The ruffling finishing includes combing treatment;

[0014] (9) Blowing: Blowing is performed on the greige fabric after napping.

[0015] (10) Final setting: The fabric after blown fabric is subjected to final setting treatment;

[0016] The hair-blowing process includes: a first hair-blowing process, a second hair-blowing process, and a third hair-blowing process performed sequentially, wherein the hair-blowing angles of the first hair-blowing process, the second hair-blowing process, and the third hair-blowing process decrease sequentially.

[0017] In this invention, the fabric prepared by the method of this invention can simultaneously achieve the silky touch of penguin feathers, the softness of cashmere, the anti-pilling performance of superior products, and the warmth of down. Furthermore, in this invention, the internal stress of weaving is first eliminated by pre-setting to stabilize the basic structure of the fabric; then, intermediate setting is used to allow the fibers to fully absorb the softener in a relaxed state to ensure the softness of the pile surface; finally, final setting can form a protective film on the pile surface, thereby enabling the prepared fabric to simultaneously achieve a comprehensive increase in anti-pilling level and softness.

[0018] In a preferred embodiment of the present invention, the yarn is a fine denier porous polyester filament with a specification of 120D / 192f or 150D / 288f. The yarn in this invention is used to form a napped surface, which imparts a silky feel to the fabric.

[0019] In a preferred embodiment of the present invention, the ground yarn is made of polyester FDY filament with a specification of 75D / 36f. The ground yarn in this invention forms the skeleton of the base fabric, enabling the fabric to have better dimensional stability.

[0020] In a preferred embodiment of the present invention, the connecting yarn is a polyester filament with a specification of 75D / 36f polyester FDY. The connecting yarn in this invention is used to form a connecting line between two needle beds.

[0021] As a preferred embodiment of the present invention, the mass ratio of the face yarn, the ground yarn, and the connecting yarn is (65-75):(20-25):(5-15), preferably (70-75):(20-25):(5-10). By controlling the amounts of the face yarn, ground yarn, and connecting yarn within the aforementioned range, the prepared fabric not only possesses a penguin feather-like silky smooth feel but also exhibits excellent dimensional stability and uniform pile.

[0022] The warping in step (1) of this invention is the process of winding the face yarn, ground yarn, and connecting yarn in package form onto the warp beam in parallel. This ensures the stability of the fabric structure and the uniformity of the pile surface. The above-mentioned warping is a conventional operation method in the art. This invention is carried out according to the conventional operation methods in the art. For example, the warping method of the face yarn includes: using a batch warping machine, a machine speed of 200-250m / min, a single yarn tension of 2-4cN, and a warp beam winding density of 0.55-0.6g / cm.3 The ground yarn warping methods include: using a batch warping machine, with a machine speed of 350-400 m / min, a single yarn tension of 6-8 cN, and a warp beam winding density of 0.65-0.7 g / cm³. 3 The warping method for connecting yarns is as follows: A batch warping machine is used, with a speed of 300-350 m / min, a single yarn tension of 3-5 cN, and a warp beam winding density of 0.50-0.60 g / cm³. 3 The following embodiments of the present invention are all performed in accordance with the above methods and conventional methods in the art, and the present invention will not elaborate further on these methods.

[0023] The weaving in step (1) of this invention is a process in which the warped yarn is woven into a double-layered spacer fabric by moving the guide bars and weaving the needle bed on a double-needle-bed warp knitting machine. As a preferred technical solution of this invention, the weaving method in step (1) includes:

[0024] Equipment parameters: Double needle bed warp knitting machine, needle bed spacing 6-12mm;

[0025] Comb configuration: 6 combs, of which GB1 is fully threaded through the ground yarn to form the front base fabric; GB2 is fully threaded through the face yarn to form the front pile extension line; GB3 is fully threaded through the connecting yarn to form the vertical connecting line between the double needle beds; GB4 is fully threaded through the face yarn to form the back pile extension line; GB5 is fully threaded through the ground yarn to form the back base fabric; GB6 is threaded without yarn.

[0026] The padding yarn numbers are: GB1 and GB5 are 1-0-1-0 / 2-3-2-3 / / , GB2 and GB4 are 1-2-1-2 / 1-0-1-0 / / , and GB3 is 1-0-2-3 / 2-3-1-0 / / .

[0027] Warp feed rate: ground yarn 1300-1600mm / Rack, face yarn 1800-2200mm / Rack, connecting yarn 2500-3200mm / Rack;

[0028] Weaving tension: 4-5 cN;

[0029] Off-machine fabric: Double-layer total weight: 400-900 gsm.

[0030] As a preferred technical solution of the present invention, in step (3), the conditions of the pre-type treatment include: temperature 190-200℃, vehicle speed 25-35m / min, and overfeeding 2%-3%.

[0031] As a preferred technical solution of the present invention, in step (4), the heat treatment method includes: using a double roller heat treatment machine, the temperature of the heat treatment roller is 180-200℃, the speed is 15-20m / min, heat treatment is performed 2-3 times, and the distance between the roller surface and the fabric is 1-2mm.

[0032] The dyeing and printing processes in step (5) of this invention can be carried out in accordance with conventional methods in the field as needed. This invention has no special requirements for this, so it will not be elaborated further.

[0033] The drying process in step (6) of this invention can be carried out in accordance with conventional methods in the art as needed, generally controlling the moisture content to ≤5%. This invention has no special requirements in this regard, so it will not be elaborated further.

[0034] As a preferred technical solution of the present invention, the conditions for the intermediate setting treatment include: the intermediate treatment liquid consists of 30-50 g / L of amino-modified organosilicon softener, 1-3 g / L of penetrant, and the remainder is water; the rolling mill pressure is 3-4 bar, the liquid carry-over rate is 60%-70%; the overfeed is 4%-5%; the rolling speed is 20-30 m / min, the setting temperature is 170-185℃, and the setting time is 40-60 seconds.

[0035] The above-mentioned amino-modified silicone softener uses Hongqi amino silicone oil, and the penetrant uses FKS.

[0036] In this invention, controlling the intermediate setting process to meet the above conditions can lay a good foundation for subsequent gradient blow-drying and final setting, resulting in a fabric with better softness.

[0037] The above intermediate setting process can be carried out according to the conventional process steps in this field. That is, the dried fabric is fed into the padding and impregnation step using a fabric feeder and tension adjusting rollers. The padding pressure is controlled at 3-4 bar, and the liquid content of the fabric after padding is 60%-70%. Then, it enters the overfeed roller and the overfeed is adjusted to 4%-5%. Finally, the speed is controlled at 20-30 m / min and it enters the drying ovens 1-6 for setting. The lengths of drying ovens 1-6 are the same, and the temperatures of drying ovens 1-6 are 173-177℃, 176-179℃, 180-185℃, 180-185℃, 173-177℃, and 170-172℃ respectively. The setting time is 40-60 seconds.

[0038] As a preferred embodiment of the present invention, the imitation penguin down fabric is either single-sided or double-sided. That is, those skilled in the art can choose to prepare either single-sided or double-sided imitation penguin down fabric as needed, and thus select the corresponding napping finishing process.

[0039] As a preferred technical solution of the present invention, when the imitation penguin down fabric is a double-sided imitation penguin down fabric, the napping finishing includes sequentially performing a napping process and a combing process.

[0040] Nailing is a prerequisite for achieving a high-density nap and high orientation accuracy. As a preferred embodiment of this invention, the napping conditions include: napping roller speed of 600-800 rpm, fabric speed of 15-20 m / min, napping 2-3 times, and needle cloth insertion depth of 2-3 mm.

[0041] Combing treatment enables the nap to have a certain orientation before entering the blow-drying process, significantly improving the blow-drying efficiency. As a preferred technical solution of the present invention, the conditions of the combing treatment include: combing roller speed of 400-600 rpm, fabric speed of 12-18 m / min, and combing 1-2 times.

[0042] As a preferred technical solution of the present invention, the conditions for the first blown fabric treatment include: blown angle 60-75°, air pressure 0.5-0.7 MPa, air temperature 95-105℃, distance between blown fabric roller and base fabric 8-12mm, and fabric speed 8-12m / min; the conditions for the second blown fabric treatment include: blown angle 30-45°, air pressure 0.3-0.5MPa, air temperature 85-95℃, distance between blown fabric roller and base fabric 6-7mm, and fabric speed 8-12m / min; the conditions for the third blown fabric treatment include: blown angle 10-20°, air pressure 0.2-0.3MPa, air temperature 75-85℃, distance between blown fabric roller and base fabric 3-5mm, and fabric speed 8-12m / min.

[0043] In addition, when the imitation penguin down fabric is a double-sided imitation penguin down fabric, the blown-down treatment in this invention can be performed on one side or both sides, and those skilled in the art can choose according to their needs.

[0044] In this invention, the research found that adding a blown-down step and combining it with the above-mentioned specific blown-down conditions can make the prepared fabric have better overall performance. This may be because the hot air of the first blown-down process can penetrate the entire depth of the pile layer and blow up the roots of the pile that are close to the base fabric. The subsequent second blown-down process can make the already erected pile tilt along a set direction to form the main orientation. Finally, the third blown-down process can comb the tips of the pile, make them more smoothly arranged, and cool and shape them.

[0045] As a preferred technical solution of the present invention, the conditions for the final setting treatment include: the final treatment liquid consists of 3-8 g / L of amino-modified organosilicon softener, 20-30 g / L of anti-pilling agent, and the remainder is water; the rolling mill pressure is 3-4 bar, the liquid carry-over rate is 60%-70%; overfeeding is 2%-3%; the machine speed is 15-20 m / min; setting at 120-130℃ for 20-30 seconds, then setting at 160-175℃ for 20-30 seconds, and finally setting at 135-140℃ for 20-30 seconds.

[0046] The above-mentioned amino-modified silicone softener uses Hongqi amino silicone oil, and the anti-pilling agent uses JYD700HG.

[0047] The above-mentioned final setting process can be carried out according to the conventional process steps in this field. That is, the blown fabric is fed into the padding and impregnation step using a fabric feeder and tension adjusting roller. The padding pressure is controlled at 3-4 bar, and the liquid content of the fabric after padding is 60%-70%. Then, it enters the overfeed roller and the overfeed is adjusted to 2%-3%. Finally, the speed is controlled at 15-20 m / min and it enters ovens 1-6 for setting. Ovens 1-6 are of the same length, and the temperatures of ovens 1-6 are 120-130℃, 120-130℃, 165-175℃, 160-175℃, 130-140℃, and 130-140℃ respectively. The setting time is 60-90 seconds.

[0048] In this invention, further research has revealed that using a specific final setting treatment can result in fabrics with better anti-pilling properties and silky softness. It is speculated that this is because the specific final treatment liquid and gradient setting temperature allow the treatment liquid to spread and penetrate fully. The anti-pilling agent first migrates to the root of the pile, and then the anti-pilling agent at the root is fully cross-linked to form a high-density reinforcing layer. Finally, the softener forms a low-crosslinked lubricating film at the tip of the pile, thereby giving the fabric better anti-pilling properties and silky softness.

[0049] Secondly, the present invention provides a penguin-like down fabric, which is prepared by the same method used for preparing penguin-like down fabric.

[0050] Compared with the prior art, the present invention has at least the following beneficial effects:

[0051] 1. In this invention, by combining specific raw material composites with a blown-down process, the fabric's tactile feel is transformed from that of granular down to that of feather down. The final fabric has an extremely soft, smooth, and lightweight feel, similar to the silky softness produced when stroking penguin feathers.

[0052] 2. The raw materials and shaping process used in this invention enable the final fabric to reduce the tendency of pilling while also possessing excellent silky and soft properties. Detailed Implementation

[0053] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Experimental methods in the following embodiments, unless otherwise specified, are generally performed under conventional conditions or as recommended by the manufacturer.

[0054] The following examples and comparative examples illustrate the preparation of double-sided imitation penguin down fabric. When preparing single-sided imitation penguin down fabric, the napping process may not be necessary.

[0055] Example 1

[0056] Preparation of raw materials:

[0057] Yarn: 120D / 192f fine denier porous polyester filament, accounting for 72% by weight;

[0058] Ground yarn: 75D / 36f polyester FDY, accounting for 22% by weight;

[0059] Connecting yarn: 75D / 36f polyester FDY, accounting for 6% by weight;

[0060] Preparation of imitation penguin down fabric:

[0061] (1) Weaving: The face yarn, ground yarn and connecting yarn are warped and woven on a double needle bed warp knitting machine to obtain a double-layered greige fabric with a connecting line in the middle;

[0062] Weaving methods include:

[0063] Equipment parameters: Double needle bed warp knitting machine, needle bed spacing 8mm;

[0064] Comb configuration: 6 combs, of which GB1 is fully threaded through the ground yarn to form the front base fabric; GB2 is fully threaded through the face yarn to form the front pile extension line; GB3 is fully threaded through the connecting yarn to form the vertical connecting line between the double needle beds; GB4 is fully threaded through the face yarn to form the back pile extension line; GB5 is fully threaded through the ground yarn to form the back base fabric; GB6 is threaded without yarn.

[0065] The padding yarn numbers are: GB1 and GB5 are 1-0-1-0 / 2-3-2-3 / / , GB2 and GB4 are 1-2-1-2 / 1-0-1-0 / / , and GB3 is 1-0-2-3 / 2-3-1-0 / / .

[0066] Warp feed: Ground yarn 1450mm / Rack, face yarn 1950mm / Rack, connecting yarn 2800mm / Rack;

[0067] Weaving tension: 4cN;

[0068] Off-machine fabric: Double-layer total weight 480gsm;

[0069] (2) Cutting: Cut along the double-layered fabric with the connecting line in the middle to obtain two single-sided fabrics;

[0070] (3) Pre-forming: The greige fabric after splitting is pre-formed at a temperature of 195℃, a speed of 30m / min, and an overfeed of 2%;

[0071] (4) Heat pressing: The pre-shaped fabric is heat pressed using a double roller heat press machine with the first roller at 190°C and the second roller at 200°C. The machine speed is 18m / min, and the fabric is heat pressed twice. The distance between the roller surface and the fabric is 1.5mm.

[0072] (5) Dyeing and printing: Dyeing and printing are performed on the greige fabric after heat treatment;

[0073] (6) Drying: Drying the dyed and printed fabric;

[0074] (7) Intermediate setting: The dried fabric is fed into the padding and impregnation steps using a fabric feeder and tension adjustment roller (the intermediate treatment liquid consists of 40g / L of amino-modified organosilicon softener (Hongqi amino silicone oil), 2g / L of penetrant (FKS), and the remainder is water). The padding pressure is controlled at 3.5 bar, and the fabric liquid content after padding is 68%. Then, the fabric is fed into the overfeed roller and the overfeed is adjusted to 5%. Finally, the speed is controlled at 25m / min and the fabric is fed into ovens 1-6 for setting. The lengths of ovens 1-6 are the same, and the temperatures of ovens 1-6 are 175℃, 178℃, 180℃, 180℃, 175℃, and 170℃ respectively. The setting time is 48 seconds.

[0075] (8) Ruffling finishing: Ruffling and combing are performed in sequence; the conditions for ruffling include: ruffling roller speed of 700 rpm, fabric speed of 18 m / min, ruffling twice, and needle cloth insertion depth of 2.5 mm; the conditions for combing include: combing roller speed of 500 rpm, fabric speed of 15 m / min, and combing once.

[0076] (9) Hair blowing: Hair blowing treatment is performed on both sides of the fabric after napping. The hair blowing treatment includes the following steps: first hair blowing treatment, second hair blowing treatment, and third hair blowing treatment in sequence. The conditions for the first hair blowing treatment are: hair blowing angle 70°, air pressure 0.6MPa, air temperature 100℃, distance between hair blowing roller and base fabric 10mm, and fabric speed 10m / min. The conditions for the second hair blowing treatment are: hair blowing angle 40°, air pressure 0.4MPa, air temperature 90℃, distance between hair blowing roller and base fabric 7mm, and fabric speed 10m / min. The conditions for the third hair blowing treatment are: hair blowing angle 15°, air pressure 0.25MPa, air temperature 80℃, distance between hair blowing roller and base fabric 5mm, and fabric speed 10m / min.

[0077] (10) Final setting: The blown fabric is fed into the padding and impregnation steps using a fabric feeder and tension adjustment roller (the final treatment liquid consists of 3g / L of amino-modified silicone softener (Hongqi amino silicone oil), 25g / L of anti-pilling agent (JYD700HG), and the remainder is water). The padding pressure is controlled at 3.5 bar, and the liquid content of the fabric after padding is 65%. Then, it enters the overfeed roller and the overfeed is adjusted to 3%. Finally, the speed is controlled at 18m / min and it enters ovens 1-6 for setting. The lengths of ovens 1-6 are the same, and the temperatures of ovens 1-6 are 123℃, 128℃, 170℃, 175℃, 140℃, and 135℃ respectively. The setting time is 75 seconds.

[0078] Example 2

[0079] The method according to Example 1 differs in that:

[0080] Preparation of raw materials:

[0081] Yarn: 120D / 192f fine denier porous polyester filament, accounting for 75% by weight;

[0082] Ground yarn: 75D / 36f polyester FDY, accounting for 20% by weight;

[0083] Connecting yarn: 75D / 36f polyester FDY, 5% by weight;

[0084] Preparation of imitation penguin down fabric:

[0085] In step (1), the warp feed rate is: 1450mm / Rack for ground yarn, 2000mm / Rack for face yarn, and 2600mm / Rack for connecting yarn;

[0086] In step (7), 35 g / L of amino-modified organosilicon softener (Hongqi amino silicone oil) is used.

[0087] Example 3

[0088] The method according to Example 1 differs in that:

[0089] Preparation of raw materials:

[0090] Yarn: 120D / 192f fine denier porous polyester filament, accounting for 70% by weight;

[0091] Ground yarn: 75D / 36f polyester FDY, accounting for 25% by weight;

[0092] Connecting yarn: 75D / 36f polyester FDY, 5% by weight;

[0093] Preparation of imitation penguin down fabric:

[0094] In step (1), the equipment parameters are: double needle bed warp knitting machine, needle bed spacing 10mm, warp feed: ground yarn 1450mm / Rack, face yarn 1900mm / Rack, connecting yarn 3100mm / Rack;

[0095] In step (7), 45 g / L of amino-modified organosilicon softener (Hongqi amino silicone oil) is used.

[0096] In step (9), the conditions for the first blown fabric treatment include: blown angle 75°, air pressure 0.5MPa, air temperature 95℃, distance between blown fabric roller and base fabric 12mm, and fabric speed 10m / min; the conditions for the second blown fabric treatment include: blown angle 45°, air pressure 0.5MPa, air temperature 85℃, distance between blown fabric roller and base fabric 6mm, and fabric speed 10m / min; the conditions for the third blown fabric treatment include: blown angle 20°, air pressure 0.2MPa, air temperature 75℃, distance between blown fabric roller and base fabric 4mm, and fabric speed 10m / min.

[0097] Comparative Example 1

[0098] The method according to Example 1 differs in that:

[0099] No step (9), that is, the fabric after napping is processed in step (10).

[0100] Comparative Example 2

[0101] The method of Example 1 differs in that:

[0102] No step (7), that is, the dried fabric is processed by subsequent steps (8)-(10).

[0103] Comparative Example 3

[0104] The method of Example 1 differs in that:

[0105] In step (9), the conditions for the first blown fabric treatment include: blown angle 15°, air pressure 0.25MPa, air temperature 80℃, distance between blown fabric roller and base fabric 5mm, and fabric speed 10m / min; the conditions for the second blown fabric treatment include: blown angle 40°, air pressure 0.4MPa, air temperature 90℃, distance between blown fabric roller and base fabric 7mm, and fabric speed 10m / min; the conditions for the third blown fabric treatment include: blown angle 70°, air pressure 0.6MPa, air temperature 100℃, distance between blown fabric roller and base fabric 10mm, and fabric speed 10m / min.

[0106] Comparative Example 4

[0107] The method according to Example 1 differs in that:

[0108] In step (9), the conditions for the first blown fabric treatment include: blown angle 70°, air pressure 0.2MPa, air temperature 100℃, distance between blown fabric roller and base fabric 5mm, and fabric speed 10m / min; the conditions for the second blown fabric treatment include: blown angle 40°, air pressure 0.4MPa, air temperature 90℃, distance between blown fabric roller and base fabric 7mm, and fabric speed 10m / min; the conditions for the third blown fabric treatment include: blown angle 15°, air pressure 0.6MPa, air temperature 80℃, distance between blown fabric roller and base fabric 10mm, and fabric speed 10m / min.

[0109] Comparative Example 5

[0110] The method according to Example 1 differs in that:

[0111] In step (9), the fabric after napping is subjected to a blown fabric treatment. The conditions for the blown fabric treatment include: blown fabric angle 40°, air pressure 0.4MPa, air temperature 90℃, distance between the blown fabric roller and the base fabric 7mm, fabric speed 10m / min, and blown fabric 3 times.

[0112] Comparative Example 6

[0113] The method according to Example 1 differs in that:

[0114] In step (10), the final treatment solution consists of 30 g / L of anti-pilling agent (JYD700HG) and the remainder is water.

[0115] Comparative Example 7

[0116] The method according to Example 1 differs in that:

[0117] In step (10), the blown fabric is fed into the padding machine and impregnation step using a fabric feeder and tension adjustment roller (the final treatment liquid consists of 5g / L of amino-modified organosilicon softener (Hongqi amino silicone oil), 25g / L of anti-pilling agent (JYD700HG), and the remainder is water). The padding machine pressure is controlled at 3.5 bar, and the fabric liquid content after padding is 65%. Then, the overfeed roller is adjusted to 6% overfeed. Finally, the machine speed is controlled at 25m / min and the fabric is fed into ovens 1-6 for setting. The lengths of ovens 1-6 are the same, and the temperatures of ovens 1-6 are 175℃, 178℃, 180℃, 180℃, 175℃, and 170℃ respectively. The setting time is 48 seconds.

[0118] Performance testing

[0119] The following performance tests were performed on the fabrics in Examples 1-3 and Comparative Examples 1-7 respectively:

[0120] The pilling and fuzzing grade is tested according to ASTM D4970-2010, with a pressure of 415g and 5000 cycles of friction.

[0121] Softness: The inclined plane method (ASTM D1388) is used to test the length of the overhang arm. The smaller the value, the softer the arm.

[0122] Thermal insulation: Tested according to the standard test method for thermal conductivity of textile materials in ASTM D1518-14 Option 1, at a temperature of 35°C and a wind speed of 0.5 m / s.

[0123] The performance test results are shown in Table 1.

[0124] Table 1 Performance Test Results

[0125]

[0126] The results of the above performance tests show that the fabric prepared in this invention has excellent anti-pilling, softness and warmth.

[0127] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention. Furthermore, various different embodiments of the present invention can be arbitrarily combined, as long as they do not violate the spirit of the present invention, they should also be considered as the content disclosed by the present invention.

Claims

1. A method for preparing penguin-down-like fabric, characterized in that, The preparation method includes the following steps: (1) Weaving: The face yarn, ground yarn and connecting yarn are warped and woven on a double needle bed warp knitting machine to obtain a double-layered greige fabric with a connecting line in the middle; (2) Cutting: Cut along the double-layered fabric with the connecting line in the middle to obtain two pieces of fabric; (3) Pre-forming: Pre-forming the greige fabric after it has been split; (4) Heat pressing: Heat pressing is performed on the pre-shaped fabric; (5) Dyeing and / or printing: Dyeing or printing on the greige fabric after heat treatment; (6) Drying: Drying the dyed and / or printed fabric; (7) Intermediate setting: The dried fabric is subjected to intermediate setting treatment; (8) Ruffling finishing: The ruffling finishing includes combing treatment; (9) Blowing: Blowing is performed on the greige fabric after napping. (10) Final setting: The fabric after blown fabric is subjected to final setting treatment; The face yarn is made of fine denier porous polyester filament with a specification of 120D / 192f or 150D / 288f; the ground yarn is made of polyester FDY filament with a specification of 75D / 36f; and the connecting yarn is made of polyester filament with a specification of 75D / 36f polyester FDY. The intermediate setting treatment conditions include: the intermediate treatment solution consists of 30-50 g / L of amino-modified silicone softener, 1-3 g / L of penetrant, and the remainder being water; rolling mill pressure is 3-4 bar, liquid carry-over rate is 60%-70%; overfeed is 4%-5%; rolling speed is 20-30 m / min, setting temperature is 170-185℃, and setting time is 40-60 seconds; The blown fabric treatment includes: a first blown fabric treatment, a second blown fabric treatment, and a third blown fabric treatment performed sequentially, wherein the blown fabric angles of the first blown fabric treatment, the second blown fabric treatment, and the third blown fabric treatment decrease sequentially; the conditions for the first blown fabric treatment include: a blown fabric angle of 60-75°, an air pressure of 0.5-0.7MPa, an air temperature of 95-105℃, a distance between the blown fabric roller and the base fabric of 8-12mm, and a fabric speed of 8-12m / min; the conditions for the second blown fabric treatment include: a blown fabric angle of 30-45°, an air pressure of 0.3-0.5MPa, an air temperature of 85-95℃, a distance between the blown fabric roller and the base fabric of 6-7mm, and a fabric speed of 8-12m / min; the conditions for the third blown fabric treatment include: a blown fabric angle of 10-20°, an air pressure of 0.2-0.3MPa, an air temperature of 75-85℃, a distance between the blown fabric roller and the base fabric of 3-5mm, and a fabric speed of 8-12m / min; The final setting conditions include: the final treatment solution consists of 3-8 g / L of amino-modified silicone softener, 20-30 g / L of anti-pilling agent, and the remainder is water; rolling mill pressure is 3-4 bar, liquid carry-over rate is 60%-70%; overfeed is 2%-3%; machine speed is 15-20 m / min; setting at 120-130℃ for 20-30 seconds, then setting at 160-175℃ for 20-30 seconds, and finally setting at 135-140℃ for 20-30 seconds.

2. The method for preparing penguin-like down fabric according to claim 1, characterized in that... , The mass ratio of the face yarn, the ground yarn and the connecting yarn is (65-75):(20-25):(5-15).

3. The method for preparing penguin-like down fabric according to claim 1, characterized in that, In step (1), the weaving method includes: Equipment parameters: Double needle bed warp knitting machine, needle bed spacing 6-12mm; Comb configuration: 6 combs, of which GB1 is fully threaded through the ground yarn to form the front base fabric; GB2 is fully threaded through the face yarn to form the front pile extension line; GB3 is fully threaded through the connecting yarn to form the vertical connecting line between the double needle beds; GB4 is fully threaded through the face yarn to form the back pile extension line; GB5 is fully threaded through the ground yarn to form the back base fabric; GB6 is threaded without yarn. The padding yarn numbers are: GB1 and GB5 are 1-0-1-0 / 2-3-2-3 / / , GB2 and GB4 are 1-2-1-2 / 1-0-1-0 / / , and GB3 is 1-0-2-3 / 2-3-1-0 / / . Warp feed rate: ground yarn 1300-1600mm / Rack, face yarn 1800-2200mm / Rack, connecting yarn 2500-3200mm / Rack; Weaving tension: 4-5 cN; Off-machine fabric: Double-layer total weight: 400-900 gsm.

4. The method for preparing penguin-like down fabric according to claim 1, characterized in that, In step (3), the conditions for the pre-processing include: temperature 190-200℃, vehicle speed 25-35m / min, and overfeeding 2%-3%.

5. The method for preparing penguin-like down fabric according to claim 1, characterized in that, In step (4), the heat treatment method includes: using a double roller heat treatment machine, with the heat treatment roller temperature at 180-200℃, the machine speed at 15-20m / min, heat treatment 2-3 times, and the distance between the roller surface and the fabric at 1-2mm.

6. The method for preparing penguin-like down fabric according to claim 1, characterized in that, The imitation penguin down fabric is either single-sided or double-sided. When the imitation penguin down fabric is double-sided, the napping process includes sequential napping and combing. The napping conditions include: napping roller speed of 600-800 rpm, fabric speed of 15-20 m / min, napping 2-3 times, and needle insertion depth of 2-3 mm. The combing conditions include: combing roller speed of 400-600 rpm, fabric speed of 12-18 m / min, and combing 1-2 times.

7. A penguin-down-like fabric, characterized in that, The imitation penguin down fabric is prepared by the method for preparing imitation penguin down fabric according to any one of claims 1-6.

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