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CN-122008652-A - Glossy nylon double-line-lattice TPU white film fabric and preparation process thereof

CN122008652ACN 122008652 ACN122008652 ACN 122008652ACN-122008652-A

Abstract

The invention belongs to the technical field of cloth preparation, and particularly relates to a bright nylon double-line-grid TPU white film fabric and a preparation process thereof, wherein the bright nylon double-line-grid fabric comprises bright nylon double-line-grid base cloth and a TPU white film layer, the bright nylon double-line-grid base cloth is woven by adopting 70D/144F bright nylon filaments, double-line-grid textures are formed by interweaving weft yarns and double lines, the gram weight of the base cloth is 110+/-5 g/m < 2 >, and the TPU white film layer is an aliphatic polyether type TPU white film. The fabric solves the problems of uneven tension, wrinkling, deflection, bubbles and the like of a cloth film from the source through the cooperative cooperation of an adjusting mechanism, a flattening roller, a preheating mechanism and a hot-pressing part, the gradient elastic compression roller is self-adaptive to double-line lattice texture, so that the composite fastness is ensured, the lattice is prevented from being collapsed, the TPU white film is attached to a heating roller with a very small wrap angle, and the design of flat and straight feeding of a base cloth is adopted, the material is prevented from being damaged by heat and attenuated by gloss, and the composite yield and the texture of the fabric are greatly improved.

Inventors

  • WU RONGZHAO
  • SUN RUI
  • LIN XIUXIN

Assignees

  • 新疆鸿荣轻工有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (10)

  1. 1. The bright nylon double-wire grid TPU white film fabric comprises a bright nylon double-wire grid base fabric (1) and a TPU white film layer (2), and is characterized in that the bright nylon double-wire grid base fabric (1) is woven by adopting 70D/144F bright nylon filaments, double-wire grid textures are formed by interweaving weft yarns and double wires, the base fabric gram weight is 110+/-5 g/m & lt 2 & gt, the TPU white film layer (2) is an aliphatic polyether type TPU white film, the thickness is 0.05-0.10 mm, the whiteness is more than or equal to 92%, the bright nylon double-wire grid base fabric (1) and the TPU white film layer (2) are combined into a whole through solvent-free hot pressing, the peeling strength of a composite interface is more than or equal to 18N/3cm, the waterproof pressure of the fabric is more than or equal to 10000mmH 2 O, and the moisture permeability is more than 3200 g/(m & lt 2 & gt, 24 h).
  2. 2. The bright nylon double-wire grid TPU white film fabric of claim 1 is characterized in that the double-wire grid spacing of the bright nylon double-wire grid base fabric (1) is 0.2-0.4 mm, the height of grid protrusions is 0.15-0.25 mm, and the warp and weft density is 200X 180 pieces/inch.
  3. 3. The bright nylon double-line-lattice TPU white film fabric disclosed by claim 2 is characterized in that 50-100 nm nano titanium dioxide is mixed in the TPU white film layer (2), the mixing amount is 8% -12%, and the UPF of the fabric is more than or equal to 50+.
  4. 4. The bright nylon double-line lattice TPU white film fabric disclosed in claim 3 is characterized in that the integral gram weight of the fabric formed by laminating the bright nylon double-line lattice base fabric (1) and the TPU white film layer (2) is 160+/-10 g/m < 2 >, the shrinkage in the longitudinal and latitudinal directions is less than or equal to 3%, and the 60-degree glossiness of the bright nylon surface is more than or equal to 80GU.
  5. 5. The preparation process of the bright nylon double-line-lattice TPU white film fabric, which is characterized by comprising the following specific steps: S1, carrying out channel winding and warping treatment on 70D/144F bright nylon filament yarns, weaving according to a double-wire grid structure by adopting a water jet loom to prepare the bright nylon double-wire grid base cloth (1), and removing defects through blank inspection; S2, mixing aliphatic polyether type TPU particles with nano titanium dioxide, drying by hot air, extruding by double screws, casting and calendaring to obtain a TPU white film layer (2), and lifting the surface energy by corona treatment; S3, unreeling the bright nylon double-wire grid base cloth (1) and the TPU white film layer (2) through double stations respectively, realizing constant tension conveying through a magnetic powder tension closed loop and a tension floating roller, rectifying and stretching on line to enable Ziegler marks, and preheating the shallow layers through a gradient preheating roller; s4, horizontally entering the pretreated bright nylon double-wire grid base cloth (1) and the TPU white film layer (2) into a hot-pressing composite roller set, attaching a heating roller to the TPU white film layer (2), attaching a lower gradient elastic pressing roller to the bright nylon double-wire grid base cloth (1), and compounding instantly at high temperature and high pressure without solvent; s5, rapidly solidifying the compounded fabric by using a gas-water double-effect cooling roller; S6, tentering and shaping, inspecting cloth and rolling to obtain the finished fabric.
  6. 6. The preparation technology of the bright nylon double-wire grid TPU white film fabric according to claim 5, characterized in that the feeding pretreatment equipment of S3 comprises an adjusting mechanism (3), the adjusting mechanism (3) comprises cross frames (31) which are symmetrically arranged, arc grooves (32) are formed in the lower ends of the cross frames (31), adjusting rollers (33) are arranged between the cross frames (31), two ends of the adjusting rollers (33) are in sliding connection with the inner walls of the arc grooves (32), guide rollers (35) are arranged at the upper ends of the cross frames (31), auxiliary rollers (34) are rotatably connected at two ends of a transverse frame body of the cross frames (31), air cylinders (36) are respectively arranged at the outer sides of the cross frames (31), the upper ends of piston rods of the air cylinders (36) are fixedly connected with the two ends of the adjusting rollers (33), the surfaces of the bright nylon double-wire grid fabric (1) are connected with the surfaces of the auxiliary rollers (34) and the surfaces of the TPU white film fabric (2), and the guide rollers (35) are connected with the surfaces of the TPU white film fabric.
  7. 7. The preparation process of the bright nylon double-wire grid TPU white film fabric is characterized in that an operation table (5) is arranged on one side of the adjusting mechanism (3), a flattening roller (4) with upper and lower roller designs is arranged at one end of the operation table (5), one end of the bright nylon double-wire grid base fabric (1) and one end of the TPU white film layer (2) respectively pass through the space between the two rollers of the flattening roller (4), a preheating mechanism (6) is arranged above the operation table (5), and a hot pressing component (7) is arranged at the other end of the operation table (5).
  8. 8. The preparation process of the bright nylon double-wire grid TPU white film fabric according to claim 7, wherein the preheating mechanism (6) comprises supporting frames (61) arranged along two sides of the operating table (5), circular grooves are formed in axisymmetric positions of the operating table (5), preheating rollers (62) are arranged in the circular grooves, two ends of each preheating roller (62) are respectively in rotary connection with inner side surfaces of the supporting frames (61), a smoothing plate (63) matched with the preheating rollers (62) is arranged right above each preheating roller (62), an electric telescopic rod (64) is fixedly connected to the upper ends of the smoothing plates (63), supporting plates (65) are fixedly connected to the inner side surfaces of the supporting frames (61), the lower side surfaces of the supporting plates (65) are fixedly connected with the upper ends of the electric telescopic rods (64), smoothing rollers (66) are arranged above the supporting plates (65), the surfaces of the smoothing rollers (66) are in sliding connection with the surfaces of the bright nylon double-wire grid TPU white film fabric (2).
  9. 9. The preparation process of the bright nylon double-line-grid TPU white film fabric is characterized in that the hot pressing component (7) comprises a lower heating roller and an upper gradient elastic pressing roller, wherein the lower heating roller and the upper gradient elastic pressing roller are respectively provided with an independent servo motor for driving, the speed difference precision is less than or equal to +/-0.1%, the lower heating roller is an electromagnetic induction heating roller, the temperature is 148-152 ℃, the temperature control precision is +/-1 ℃, and the upper gradient elastic pressing roller sequentially comprises a rigid mandrel, a high-hardness supporting layer, a gradient buffer layer, a flexible attaching layer and an anti-sticking coating layer from inside to outside, wherein the Shore hardness is gradually reduced from A90 to 95 to A70 to 75.
  10. 10. The preparation process of the bright nylon double-wire grid TPU white film fabric is characterized in that a lower heating roller is attached to the TPU white film layer (2) at a minimum wrap angle of 15-30 degrees during hot press compounding, and the bright nylon double-wire grid base fabric (1) is fed horizontally and straightly and does not cover any roller surface.

Description

Glossy nylon double-line-lattice TPU white film fabric and preparation process thereof Technical Field The invention relates to the technical field of cloth preparation, in particular to a bright nylon double-line-lattice TPU white film fabric and a preparation process thereof. Background With the upgrading of sports outdoor clothing to light weight, functionalization and fashion, the bright nylon double-line lattice fabric is made into core fabrics of high-end sports coats, sun-proof clothes and outdoor functional clothing by virtue of the high-brightness luster and three-dimensional texture and the waterproof, moisture-permeable, windproof and UV-resistant characteristics of TPU white films. At present, the fabric is mostly prepared by adopting a traditional solvent-free hot-pressing composite process, but the production process has a plurality of technical defects which are difficult to overcome: Firstly, tension regulation and control of traditional composite equipment are rough, nylon base cloth and TPU white film conveying tension are asynchronous, internal stress and dynamic wrinkles of materials cannot be eliminated only by a conventional flattening roll, feeding is easy to deviate and wrinkle, and permanent flaws are formed after hot pressing; secondly, the hot-pressing composite roller adopts a solid homogeneous silica gel roller, the pressure distribution is uneven, the three-dimensional texture of the double-line lattice is easy to collapse, the three-dimensional feel of the fabric is lost, the compounding at the grooves of the lattice is not real, and the interface is easy to generate bubbles; thirdly, the interface compatibility of the bright nylon and the TPU white film is poor, the interface peeling strength is low only by physical hot pressing engagement, delamination and warping are easy to occur after multiple times of water washing, and the functional durability is poor; fourthly, the TPU white film has weaker thermal stability, the traditional single-stage preheating and high-temperature hot pressing are easy to generate thermal shock, the white film is yellow and uneven in whiteness, meanwhile, the surface gloss of the bright nylon is easy to be damaged due to high Wen Jiechu, and the appearance quality of the fabric is seriously influenced; Fifthly, the whole process lacks accurate closed-loop regulation and control, the batch stability is poor, the yield is low, and the large-scale and high-quality production requirements of the high-end sportswear fabric cannot be met. Aiming at the problems, the invention provides a bright nylon double-line-lattice TPU white film fabric and a preparation process thereof. Disclosure of Invention Based on the technical problems that the existing bright nylon double-line-lattice TPU white film fabric is rough in tension regulation and control, easy to collapse in double-line-lattice texture, weak in composite interface binding force, easy to yellow in TPU white film, easy to generate fold bubbles in the fabric and easy to damage bright nylon luster in the preparation process, the invention provides the bright nylon double-line-lattice TPU white film fabric and a preparation process. The invention provides a bright nylon double-line lattice TPU white film fabric, which comprises bright nylon double-line lattice base cloth and a TPU white film layer, wherein the bright nylon double-line lattice base cloth is woven by adopting 70D/144F bright nylon filaments, double-line lattice textures are formed by interweaving weft yarns and double lines, the gram weight of the base cloth is 110+/-5 g/m & lt 2 & gt, the TPU white film layer is an aliphatic polyether type TPU white film with the thickness of 0.05-0.10 mm and the whiteness of more than or equal to 92%, the bright nylon double-line lattice base cloth and the TPU white film layer are combined into a whole through solvent-free hot pressing, the peeling strength of a composite interface is more than or equal to 18N/3cm, the waterproof pressure of the fabric is more than or equal to 10000mmH 2 O, and the moisture permeability is more than or equal to 3200 g/(m & lt 2 & gt 24 h). Preferably, the double-line check space of the lustrous nylon double-line check base cloth is 0.2-0.4 mm, the check protrusion height is 0.15-0.25 mm, and the warp and weft density is 200X 180 pieces/inch. Preferably, 50-100 nm nano titanium dioxide is mixed in the TPU white film layer, the mixing amount is 8% -12%, and the UPF of the fabric is more than or equal to 50+. Preferably, the integral gram weight of the fabric formed by laminating the glossy nylon double-line lattice base cloth and the TPU white film layer is 160+/-10 g/m < 2 >, the longitudinal shrinkage and the latitudinal shrinkage are all less than or equal to 3%, and the 60-degree glossiness of the glossy nylon surface is more than or equal to 80GU. Preferably, the preparation process of the bright nylon double-line-lattice TPU white film fabric comprises the followi