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CN-121989511-A - Composite color-changing fabric and preparation method thereof

CN121989511ACN 121989511 ACN121989511 ACN 121989511ACN-121989511-A

Abstract

The invention discloses a composite color-changing fabric and a preparation method thereof, and relates to the field of textile material manufacturing, wherein the composite color-changing fabric comprises a functional composite layer and a substrate layer; the functional composite layer comprises a surface layer and an intermediate functional layer, wherein the surface layer is a plush layer formed by polyester fibers, the intermediate functional layer comprises microencapsulated color-changing materials and is configured to comprise photochromic units and/or thermochromic units, the substrate layer is white grey cloth, and the composite color-changing fabric and the preparation method thereof adopt a sandwich structure of the plush layer, the intermediate functional layer and the white substrate layer. The white basal layer is used as a background, can reflect the light transmitted through the color-changing layer without color cast, and greatly enhances the vividness and contrast of the color-changing color. The fleece layer not only provides a soft touch, its translucency allows the environmental stimuli (light, heat) to effectively penetrate and act on the intermediate functional layer, while at the same time giving the color-changing effect a soft, stereoscopic visual look.

Inventors

  • LIU MANQIU
  • ZHANG JINGLEI

Assignees

  • 广安市万濠玩具有限公司

Dates

Publication Date
20260508
Application Date
20260327

Claims (10)

  1. 1. A composite color-changing fabric is characterized by comprising a functional composite layer and a basal layer (101); the functional composite layer comprises a surface layer and an intermediate functional layer (102); The surface layer is a plush layer (103) formed by polyester fibers; The intermediate functional layer (102) comprises microencapsulated color change material and is configured to comprise photochromic units and/or thermochromic units; the base layer (101) is a white grey cloth.
  2. 2. A composite color-changing fabric according to claim 1, characterized in that the pile height of the pile layer (103) is 0.5mm to 5.0mm.
  3. 3. The composite color-changing fabric according to claim 1, wherein the thermochromic unit pack has a color-changing threshold of 5 ℃ to 25 ℃.
  4. 4. The composite color-changing fabric according to claim 1, wherein the plush layer (103), the middle functional layer (102) and the basal layer (101) are in pressing and compounding through a hot melt adhesive net film (104).
  5. 5. A method for preparing the composite color-changing fabric according to any one of claims 1 to 4, which comprises the following steps: s1, providing white grey cloth as a basal layer (101); S2, preparing an intermediate functional layer (102), namely applying slurry containing microencapsulated color change materials to the surface of a carrier or the substrate layer (101), wherein the microencapsulated color change materials contain photochromic units and/or thermochromic units, and then drying and curing; s3, preparing a surface layer, namely providing a plush layer (103) formed by polyester fibers; S4, compounding, namely sequentially superposing the basal layer (101), the intermediate functional layer (102) and the plush layer (103), and placing a hot melt adhesive net film (104) between the layers, and bonding the layers through a pressing process to obtain the composite color-changing fabric.
  6. 6. The method according to claim 5, wherein in step S2, the paste applying process is one of knife coating, rotary screen printing or inkjet coating.
  7. 7. The method for preparing the composite color-changing fabric according to claim 5, wherein the pressing technology in the step S3 adopts a continuous rolling compound machine or a flat plate pressing machine, and when the continuous rolling compound machine is used, the pressure of a compound line is 250-350N/cm, and the cloth moving speed is 2-5 m/min.
  8. 8. The method for producing a composite color-changing fabric according to claim 5, wherein in the step S4, the gram weight of the hot melt adhesive net film (104) is 10-25 g/m 2 , and the material is one of Polyamide (PA), polyester (PES) or Polyolefin (PO).
  9. 9. The method according to claim 5, wherein the slurry in step S2 further comprises one or more of a binder, a thickener and a crosslinking agent, and the drying and curing temperature is 80-150 ℃ for 1-5 minutes.
  10. 10. Use of a composite color-changing fabric according to any one of claims 1-4 for the preparation of garments, home textiles, plush toys, home carpets or intelligent interactive textiles.

Description

Composite color-changing fabric and preparation method thereof Technical Field The invention relates to a textile material manufacturing technology, in particular to a composite color-changing fabric and a preparation method thereof. Background The color-changing material (such as photochromic material and thermochromic material) has wide application prospect in the textile field due to the characteristic of changing color in response to external environmental stimulus (such as illumination and temperature), and can endow dynamic aesthetic effects and intelligent interaction functions of clothes, ornaments and the like. Currently, the primary methods of applying color-changing materials to textiles include dyeing, printing, or incorporating color-changing materials into a spin-fluid. However, these methods have some limitations, namely 1) the color-changing material is directly exposed to the external environment or directly combined with the fiber, is easy to inactivate or fall off under repeated washing, friction and sun exposure, and has poor durability, 2) the color-changing effect is greatly influenced by the ground color, the color contrast and the definition are insufficient, 3) the color-changing response sensitivity and the reversibility are required to be improved, and 4) the combination fastness of the color-changing layer and the fabric matrix is limited, so that the service life is influenced. Therefore, developing a composite color-changing fabric with clear, stable and durable color-changing effect and feasible preparation process is a problem to be solved in the field. Disclosure of Invention The invention aims to provide a composite color-changing fabric and a preparation method thereof, which are used for overcoming the defects of the prior art. The fabric has the characteristics of sensitive color-changing response, bright color, good durability, comfortable hand feeling and the like. In order to achieve the aim, the invention provides the technical scheme that the composite color-changing fabric comprises a functional composite layer and a substrate layer; The functional composite layer comprises a surface layer and an intermediate functional layer; the surface layer is a plush layer formed by polyester fibers; the intermediate functional layer comprises microencapsulated color change material and is configured to comprise photochromic units and/or thermochromic units; the substrate layer is white grey cloth. Further, the pile layer has a pile height of 0.5mm to 5.0mm. Further, the thermochromic unit package has a color change threshold of 5 ℃ to 25 ℃. Further, the plush layer, the middle functional layer and the basal layer are compounded by hot melt adhesive net film in a pressing manner. The method for preparing the composite color-changing fabric comprises the following steps of: S1, providing white grey cloth as a basal layer; s2, preparing an intermediate functional layer, namely applying slurry containing microencapsulated color change materials to the surface of a carrier or the substrate layer, wherein the microencapsulated color change materials contain photochromic units and/or thermochromic units, and then drying and curing; s3, preparing a surface layer, namely providing a plush layer formed by polyester fibers; S4, compounding, namely sequentially superposing the basal layer, the intermediate functional layer and the plush layer, and placing a hot melt adhesive net film between the basal layer and the intermediate functional layer, and bonding the basal layer and the plush layer through a pressing process to obtain the composite color-changing fabric. Further, in step S2, the slurry application process is one of knife coating, rotary screen printing, or inkjet coating. Further, the pressing process in the step S3 adopts a continuous rolling compound machine or a flat plate pressing machine, and when the continuous rolling compound machine is used, the compound line pressure is 250-350N/cm, and the cloth feeding speed is 2-5 m/min. Further, in the step S4, the gram weight of the hot melt adhesive net film is 10-25 g/m 2, and the material is one of polyamide, polyester or polyolefin. Further, the slurry in step S2 further includes one or more of a binder, a thickener and a crosslinking agent, and the drying and curing temperature is 80-150 ℃ for 1-5 minutes. The application of the composite color-changing fabric in preparing clothing, home textile products, plush toys, home carpets or intelligent interactive textiles. The household carpets are carpets, tapestry, ground mats and the like; compared with the prior art, the composite color-changing fabric and the preparation method thereof provided by the invention have the following beneficial effects: The sandwich structure of the plush layer, the middle functional layer and the white basal layer is adopted. The white basal layer is used as a background, can reflect the light transmitted through the color-changing layer without