Light and thin down feather fabric with good warm-keeping effect and preparation method of down feather fabric

Abstract

The invention relates to the technical field of fabrics, and particularly provides a light and thin down feather fabric with a good warm-keeping effect and a preparation method thereof.The down feather fabric comprises two cloth layers, and the two cloth layers are attached to each other to form a down feather filling layer; the down feather is located between the down feather filling layers, and the down feather filling amount of the down feather is smaller than 10 g per square meter; the combination parts are located between the two cloth layers so as to fix the cloth layers, and the combination parts divide the down filling layer into a plurality of areas so as to prevent down feather from being stacked; the waterproof breathable film is located on the side, away from the down filling layer, of the cloth layer; according to the light and thin down feather fabric with the good warm-keeping effect, the fabric is filled with a small amount of down feather, the waterproof breathable film is arranged on the surface of the fabric, the warm-keeping effect of the fabric is improved, and meanwhile the light and thin effects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, and in particular to a down fabric that is light, thin and has good warmth-keeping effect, and a preparation method thereof. Background Art

[0002] Fabrics are textile materials used to make clothing, household items, industrial products, etc., and have various types and characteristics. Common fabrics include cotton fabrics, knitted fabrics, blended fabrics, chemical fiber fabrics, etc.

[0003] In order to improve the aesthetics and comfort of clothing, current fabrics are often made thinner and lighter. However, thin fabrics often have poor warmth retention, so users need to wear more clothes, which in turn affects the fit of the clothing. Therefore, the present application proposes a thin down fabric with good warmth retention and a preparation method thereof. Summary of the invention

[0004] The purpose of the present invention is to provide a down fabric with light weight and good thermal insulation effect and a preparation method thereof, so as to solve the problem that the current light weight fabric has poor thermal insulation effect.

[0005] To achieve the above object, the present invention provides the following technical solutions: A down fabric with a light, thin and good warmth-keeping effect and a preparation method thereof, the down fabric comprising: Two fabric layers, the two fabric layers are bonded to each other to form a filling layer; Down located between the filling layers, the filling amount of the down being less than 10g per square meter; A combining part, the combining part is located between the two fabric layers to fix the fabric layers, and the combining part divides the filling layer into a plurality of areas to prevent accumulation of down; A waterproof and breathable membrane is located on a side of the fabric layer away from the filling layer.

[0006] Furthermore, the waterproof and breathable membrane is a TPU film.

[0007] Furthermore, the fabric layer is polyester fabric.

[0008] Furthermore, the joining portion divides the filling layer into a plurality of parallel long strip areas.

[0009] The present invention also discloses a method for preparing a thin down fabric with good warmth retention effect, which is used to prepare the down fabric. The method comprises the following steps: Step S1, mixing water and down to make the down adhere to each other; Step S2, placing the wet down of preset weight at a preset position of one of the fabric layers according to the division method of the filling layer, at which point the fabric layer is already combined with the waterproof breathable membrane; Step S3, applying glue at a preset position on another of the fabric layers, wherein the glue is linear; Step S4, merging the two fabric layers so that the two fabric layers are combined to form a filling layer; Step S5, sewing the edge areas of the fabric layer and drying the down.

[0010] Preferably, in step S1, the method of mixing down and water comprises the following steps: Step S1-1, mixing and washing the down by spraying and stirring; Step S1-2, spinning the down mixed with water at a preset speed and for a preset time to obtain wet down.

[0011] Preferably, in step S3, the combining portion is coated on the fabric layer in a grid shape.

[0012] Preferably, the length and width of the grid formed by the combined portion are less than ten centimeters.

[0013] Preferably, step S3 is performed by a down filling device, and the down filling device comprises: frame; A down conveying assembly, the down conveying assembly comprising a down silo, a plurality of conveying shafts and a plurality of conveying motors, the plurality of conveying shafts being rotatably connected to the down silo, the conveying shafts being provided with spiral blades, the down silo being provided with a conveying pipe on the outer side of the spiral blades, the conveying pipe being communicated with the down silo, the plurality of conveying pipes being arranged in parallel, the conveying motor being fixedly connected to the down silo, the conveying shaft being fixedly connected to the output shaft of the conveying motor to drive the conveying shaft to rotate intermittently; A roller assembly is arranged on the frame, and conveying rollers are arranged on both sides of the down conveying assembly. The conveying rollers are driven to rotate by a power mechanism inside the frame, and the rotation speed of the roller assembly is adapted to the rotation speed of the conveying shaft.

[0014] Preferably, the filling device further comprises: A glue coating component is used to coat the fabric layer with glue, the glue coating component comprises a glue coating roller and a glue tank, the glue tank is fixedly connected to the frame, a long strip-shaped glue penetration hole is arranged at the bottom of the glue tank, the glue coating roller is rotatably connected to the frame, a glue coating protrusion is arranged on the outer side of the glue coating roller, the glue coating protrusion is composed of a plurality of long strip-shaped protrusions and a plurality of annular protrusions, and the glue coating roller is driven to rotate by a power mechanism inside the frame Preferably, the filling device further comprises: A corner roller, the corner roller is rotatably connected to the frame; A pressing roller is rotatably connected to the frame and driven to rotate by a power mechanism in the frame. The pressing roller is used to press the fabric layer coated with glue and the fabric layer not coated with glue. The fabric layer not coated with glue bypasses the corner roller and is located below the pressing roller.

[0015] In summary, the present invention has the following beneficial effects compared with the prior art: The down fabric with good light and thin thermal insulation effect disclosed in the embodiment of the present invention increases the thermal insulation effect of the fabric while also having a light and thin effect by filling a small amount of down inside the fabric and arranging a waterproof and breathable film on the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a down fabric with a light, thin and good warmth-retaining effect disclosed in an embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram of a down filling device in a method for preparing a thin down fabric with good warmth retention effect disclosed in an embodiment of the present invention.

[0018] Figure 3 The present invention is a schematic structural diagram of a roller in a method for preparing a thin down fabric with good warmth retention effect disclosed in an embodiment of the present invention.

[0019] Reference numerals: 10. Waterproof and breathable membrane; 20. Fabric layer; 30. Filling layer; 40. Joint; 50. Frame; 60. Pressing roller; 61. Pressing plate; 70. Roller assembly; 71. Conveying roller; 72. Tensioning roller; 80. Gluing assembly; 81. Gluing roller; 82. Gluing roller; 83. Glue bin; 84. Gluing protrusion; 85. Roller shell; 90. Down conveying assembly; 91. Down silo; 92. Conveying shaft; 93. Spiral blade; 94. Conveying motor; 95. Conveying pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example 1 like Figure 1As shown, an embodiment of the present invention provides a down fabric that is light, thin and has good thermal insulation effect. The down fabric includes a waterproof and breathable membrane 10, a fabric layer 20 and a filling layer 30. The filling layer 30 is located between two of the fabric layers 20. The filling layer 30 is filled with down, and the filling amount of the down is less than 10g per square meter. The fabric layers 20 located on both sides of the filling layer 30 are combined by a combining part 40, and the combining part 40 divides the filling layer 30 into multiple areas to prevent down accumulation. The waterproof and breathable membrane 10 is located on the side of the fabric layer 20 away from the filling layer 30.

[0022] In this embodiment, the down clusters and down fibers in the down can form a still air layer. Since still air is a poor conductor of heat, these air layers can effectively prevent the loss of heat, thereby achieving a warming effect. The filling amount of less than 10g of down per square meter causes a small increase in the thickness of the fabric, so that the fabric still has the characteristics of being light and thin. The joint 40 divides the down into multiple areas, so that the down will not accumulate, thereby preventing the accumulation of down from causing an increase in the thickness of the fabric. The waterproof and breathable membrane 10 can not only prevent the down from running, but its breathable function can also discharge sweat and prevent sweat accumulation, thereby keeping the inside of the fabric dry.

[0023] The light, thin and warm down fabric disclosed in the embodiment of the present invention has a small amount of down filled inside the fabric and a waterproof breathable membrane 10 arranged on the surface, thereby increasing the warming effect of the fabric while also having a light and thin effect.

[0024] Specifically, in this embodiment, the waterproof breathable membrane 10 is a TPU (thermoplastic polyurethane) membrane. During lamination, the TPU membrane is coated on the surface of the fabric layer 20 by hot melting or solution casting to form a uniform thin film. Then, the TPU film is tightly combined with the fabric by hot pressing to ensure the stability and durability of the waterproof breathable membrane 10.

[0025] As a preferred implementation in this embodiment, the fabric layer 20 is a polyester fiber fabric, and two layers of the fabric layers 20 form a filling layer 30. The fabric layer 20 is a plain weave, and is formed by interweaving warp yarns and weft yarns one above and one below. On the fabric layer 20, each warp yarn and each weft yarn are regularly interlaced, and there are many interweaving points, so that the fabric layer 20 is tight and strong, and has high strength and wear resistance. The fabric layer 20 and the waterproof breathable membrane 10 are fixedly connected by hot pressing; As a preferred implementation in this embodiment, the filling amount of the filling layer 30 is 5g per square meter. In this embodiment, the thickness of the formed fabric is 3 mm.

[0026] The bonding portion 40 is glue; Preferably, in this embodiment, the joints 40 are distributed in multiple rows, that is, the joints 40 divide the filling layer 30 into multiple parallel long strip regions; the edges of the fabric layer 20 are closed by sewing, so that the filling layer 30 is a closed space; It should be noted that, in this embodiment, the joining portion 40 may also be a sewing structure, and the joining portion 40 joins the two fabric layers 20 together through a thread.

[0027] Example 2 As another embodiment of the present invention, this embodiment also discloses a method for preparing a thin down fabric with good warmth retention effect, the method comprising the following steps: Step S1, mixing water and down to make the down adhere to each other; Step S2, placing the wet down of preset weight at a preset position of one of the fabric layers 20 according to the division method of the filling layer 30, at which time the fabric layer 20 is already combined with the waterproof breathable membrane 10; Step S3, applying glue at a preset position on another of the fabric layers 20, wherein the glue is linear; Step S4, merging the two fabric layers 20 so that the two fabric layers 20 are combined to form a filling layer 30; Step S5, sewing the edge area of ​​the fabric layer 20 and drying the down; Specifically, in the present embodiment, the down is wetted by a spray device and then mixed and stirred so that the down is pre-moistened. At this time, the down is in a wet and tangled state. The wet down is weighed according to the filling amount. For example, in the present embodiment, the down is filled at a filling amount of 5g per square meter. The filling layer 30 is divided into four areas per square meter. When the moisture content of the down after drying is 50%, 10g of wet down is weighed and divided into four parts on average. 2.5g of wet down is placed in each area. Then, the bonding part 40 is coated on the fabric layer 20 according to the division method. For example, when the filling layer 30 is divided into multiple rows, the bonding part 40 is coated into multiple parallel lines. Another fabric layer 20 is pasted to the fabric layer 20 coated with the bonding part 40. The two fabric layers 20 are combined by hot pressing to form a fabric. Then, the down in the filling layer 30 is dried and patted evenly.

[0028] As a preferred implementation in this embodiment, in this embodiment, the method for mixing down and water includes the following steps: Step S1-1, mixing and washing the down by spraying and stirring; Step S1-2, spinning the down mixed with water at a preset speed and for a preset time to obtain wet down; Specifically, in this step, the down and water are mixed, such as by spraying or stirring. After being completely mixed, the wet down is transferred to a spin-drying device, and the parameters of the spin-drying device, such as the rotation speed and time, are set. After the set time, the down is wet and agglomerated. At the same time, when the rotation speed and time of the spin-drying are set, the water content of the down can also be controlled, so that the down can be divided more accurately. At the same time, the down containing water is easier to weigh, so that the filling amount can be controlled with high accuracy. At the same time, when the down and water are mixed and spun dry, the down can also be cleaned to improve the cleanliness of the down.

[0029] In this embodiment, the fabric layer 20 in step S2 is a coated fabric that has been combined with the waterproof breathable membrane 10 .

[0030] In this embodiment, in step S2, when placing the down, the down can be placed on the fabric layer 20 in sequence by a quantitative conveying device, such as a spiral conveying device.

[0031] As a preferred implementation of this embodiment, in this embodiment, in step S3, the combination portion 40 is coated on the fabric layer 20 in a grid shape. In this embodiment, the grid-shaped combination portion 40 can effectively prevent the accumulation of down, and at the same time, it can also prevent the problem of down running when the edge sealing effect is poor. At the same time, after the fabric is washed, it can also prevent the problem of a large amount of down accumulation; Preferably, the length and width of the grid formed by the combining portion 40 are less than five centimeters.

[0032] As a preferred embodiment of the present invention, Figure 2 As shown, the present invention also discloses a down filling device, which includes: Rack 50; A down conveying assembly 90, wherein the down conveying assembly 90 comprises a down silo 91, a plurality of conveying shafts 92 and a plurality of conveying motors 94, wherein the plurality of conveying shafts 92 are rotatably connected to the down silo 91, the conveying shafts 92 are provided with spiral blades 93, the down silo 91 is provided with a conveying pipe 95 on the outer side of the spiral blades 93, the conveying pipe 95 is communicated with the down silo 91, a plurality of the conveying pipes 95 are provided, and the plurality of conveying pipes 95 are arranged in parallel, the conveying motor 94 is fixedly connected to the down silo 91, the conveying shaft 92 is fixedly connected to the output shaft of the conveying motor 94, the conveying motor 94 is used to drive the conveying shaft 92 to rotate intermittently, and when the conveying motor 94 rotates at a constant speed and intermittently, the spiral blades 93 quantitatively convey the down to the fabric layer 20; A roller assembly 70 is arranged on the frame 50, and conveying rollers 71 are arranged on both sides of the down conveying assembly 90. The conveying rollers 71 are driven to rotate by a power mechanism inside the frame 50. The rotation speed of the roller assembly 70 and the rotation speed of the conveying shaft 92 are in a certain matching ratio, so that the spiral blades 93 can quantitatively deposit down on the fabric layer 20.

[0033] Specifically, the frame 50 is a support frame composed of steel plates, one side of which is a support plate and the other side is a power box. The power mechanism is composed of a motor, a gear or a chain, which is used to drive the conveying roller 71 to rotate. The power mechanism is located in the power box. Both ends of the conveying roller 71 are rotatably connected to the support plate and the power box through bearings. A plurality of conveying pipes 95 are provided. The conveying pipes 95 are cylindrical with openings at both ends. The conveying pipes 95 are fixedly connected to the bottom of the down silo 91 by welding. The end of the down silo 91 to the conveying pipe 95 is funnel-shaped. The conveying motor 94 is fixedly connected to the top of the down silo 91. A mounting plate is provided on the top of the down silo 91. The conveying shaft 92 is fixedly connected to the output shaft of the down silo 91 through a coupling structure. The conveying shaft 92 is rotatably connected to the mounting plate on the top of the down silo 91 through bearings. The spiral blades 93 are fixedly connected to the conveying shaft 92 by welding.

[0034] Preferably, the roller assembly 70 further includes a tensioning roller 72 , and the fabric layer 20 passes around the bottom of the tensioning roller 72 and passes around the top of the conveying roller 71 , so that the fabric layer 20 can be tensioned.

[0035] As a preferred implementation in this embodiment, the down filling device further includes: A glue coating component 80, used for coating the fabric layer 20 with glue; In this embodiment, the glue coating assembly 80 includes a glue coating roller 81 and a glue tank 83. The glue tank 83 is fixedly connected to the frame 50. The bottom of the glue tank 83 is provided with a long strip of glue penetration holes. The glue tank 83 is a long strip box-shaped structure. The glue coating roller 81 is rotatably connected to the frame 50. Figure 3As shown, a glue coating protrusion 84 is provided on the outer side of the glue coating roller 81, and the glue coating protrusion 84 is composed of a long strip protrusion and a circular ring protrusion. After the glue coating protrusion 84 passes through the glue penetration hole, it is stained with glue inside the glue bin 83. When the glue coating protrusion 84 stained with glue passes through the fabric layer 20, the glue is coated on the fabric layer 20. Since the glue coating protrusion 84 includes a long strip protrusion and a circular ring protrusion, the glue coating protrusion 84 is coated on the fabric layer 20 in a grid shape, and the glue coating roller 81 is driven to rotate by the power mechanism inside the frame 50.

[0036] As a preferred implementation in this embodiment, the glue coating assembly 80 further includes a glue-coating roller 82 rotatably connected to the frame 50, a flexible glue coating layer is provided on the outer side of the glue-coating roller 82, and the flexible glue coating layer is a rubber layer. The glue-coating roller 82 is tangent to the glue coating roller 81, and the glue-coating roller 82 is located at the bottom of the glue bin 83. The glue-coating roller 82 blocks the glue penetration hole, and the glue-coating roller 82 rotates at the same speed as the glue coating roller 81. Preferably, a roller shell 85 is also provided on the outer side of the glue-applying roller 82. The roller shell 85 is a cylindrical structure and is used to prevent the glue of the glue-applying roller 82 from dripping. The roller shell 85 is provided with openings at the glue penetration hole and the position of the glue-applying roller 81, and is connected to the glue-applying roller 82, the glue-applying roller 81 and the glue bin 83.

[0037] As a preferred implementation in this embodiment, the down filling device further includes: A corner roller 73, wherein the corner roller 73 is rotatably connected to the frame 50; A pressing roller 60, the pressing roller 60 is rotatably connected to the frame 50 and driven to rotate by a power mechanism in the frame 50, the pressing roller 60 is used to press the fabric layer 20 coated with glue and the fabric layer 20 not coated with glue, the fabric layer 20 not coated with glue bypasses the corner roller 73 and is located below the pressing roller 60; Specifically, the frame 50 is provided with a pressing plate 61 below the pressing roller 60, and the pressing plate 61 is a flat plate structure, and the pressing plate 61 is fixedly connected to the support plate and the power box by bolts. The structure of the pressing roller 60 is the same as that of the glue coating roller 81, and the rotation speed of the pressing roller 60 is the same as that of the glue coating roller 81, so that the pressing roller 60 can only press the glue layer, thereby preventing the down from being pressed on the glue. The corner roller 73 is rotatably connected to the frame 50, and the corner roller 73 is located above the fabric layer 20, and the corner roller 73 is located between the pressing roller 60 and the down conveying assembly 90, and the un-glued fabric layer 20 bypasses the corner roller 73 and is located below the pressing roller 60.

[0038] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0039] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A down fabric with good lightness and warmth retention, characterized in that: The down fabric comprises: Two fabric layers, the two fabric layers are bonded to each other to form a filling layer; Down located between the filling layers, the filling amount of the down being less than 10g per square meter; A combining part, the combining part is located between the two fabric layers to fix the fabric layers, and the combining part divides the filling layer into a plurality of areas to prevent accumulation of down; A waterproof and breathable membrane is located on a side of the fabric layer away from the filling layer.

2. The thin and light down fabric with good warmth retention effect according to claim 1, characterized in that: The waterproof and breathable membrane is a TPU film.

3. The thin and light down fabric with good warmth retention effect according to claim 1, characterized in that: The cloth layer is made of polyester fiber cloth.

4. The thin and light down fabric with good warmth retention effect according to claim 1, characterized in that: The joining portion divides the filling layer into a plurality of parallel long strip areas.

5. A method for preparing a down fabric with a light, thin and good warmth-retaining effect, characterized in that: For preparing the down fabric according to any one of claims 1 to 4, the method comprises the following steps: Step S1, mixing water and down to make the down adhere to each other; Step S2, placing the wet down of preset weight at a preset position of one of the fabric layers according to the division method of the filling layer, at which point the fabric layer is already combined with the waterproof breathable membrane; Step S3, applying glue at a preset position on another of the fabric layers, wherein the glue is linear; Step S4, merging the two fabric layers so that the two fabric layers are combined to form a filling layer; Step S5, sewing the edge areas of the fabric layer and drying the down.

6. The method for preparing a thin down fabric with good warmth retention effect according to claim 5, characterized in that: In step S1, the method of mixing down and water comprises the following steps: Step S1-1, mixing and washing the down by spraying and stirring; Step S1-2, spinning the down mixed with water at a preset speed and for a preset time to obtain wet down.

7. The method for preparing a thin down fabric with good warmth retention effect according to claim 6, characterized in that: In step S3, the combination portion is coated on the fabric layer in a grid shape.

8. The method for preparing a thin down fabric with good warmth retention effect according to claim 7, characterized in that: Step S3 is performed by a down filling device, which includes: frame; A down conveying assembly, the down conveying assembly comprising a down silo, a plurality of conveying shafts and a plurality of conveying motors, the plurality of conveying shafts being rotatably connected to the down silo, the conveying shafts being provided with spiral blades, the down silo being provided with a conveying pipe on the outer side of the spiral blades, the conveying pipe being communicated with the down silo, the plurality of conveying pipes being arranged in parallel, the conveying motor being fixedly connected to the down silo, the conveying shaft being fixedly connected to the output shaft of the conveying motor to drive the conveying shaft to rotate intermittently; A roller assembly is arranged on the frame, and conveying rollers are arranged on both sides of the down conveying assembly. The conveying rollers are driven to rotate by a power mechanism inside the frame, and the rotation speed of the roller assembly is adapted to the rotation speed of the conveying shaft.

9. The method for preparing a thin down fabric with good warmth retention effect according to claim 8, characterized in that: The filling device also includes: A glue coating component is used to coat the fabric layer with glue, the glue coating component comprises a glue coating roller and a glue bin, the glue bin is fixedly connected to the frame, a long strip of glue penetration holes is arranged at the bottom of the glue coating roller, the glue coating roller is rotatably connected to the frame, a glue coating protrusion is arranged on the outer side of the glue coating roller, the glue coating protrusion is composed of a plurality of long strip protrusions and a plurality of circular protrusions, and the glue coating roller is driven to rotate by a power mechanism inside the frame.

10. The method for preparing a thin down fabric with good warmth retention effect according to claim 8, characterized in that: The filling device also includes: A corner roller, the corner roller is rotatably connected to the frame; A pressing roller is rotatably connected to the frame and driven to rotate by a power mechanism in the frame. The pressing roller is used to press the fabric layer coated with glue and the fabric layer not coated with glue. The fabric layer not coated with glue bypasses the corner roller and is located below the pressing roller.

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