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CN-122013424-A - Continuous cool sense fabric based on phase change material and preparation method and application thereof

CN122013424ACN 122013424 ACN122013424 ACN 122013424ACN-122013424-A

Abstract

The invention discloses a continuous cool fabric based on a phase change material, and belongs to the technical field of textile fabrics. The fabric is made by interweaving composite yarns and spandex, wherein the composite yarns comprise PCM nylon and common FDY nylon, the mass percentage of the PCM nylon in the composite yarns is not higher than 50%, the specification of the composite yarns is 80D/60F, and the specification of the spandex is 20D. The fabric disclosed by the invention is woven by selecting a small amount of PCM nylon and common nylon to form composite yarns and compositing the composite yarns with spandex according to a certain method, so that the cost of raw materials is effectively reduced while the continuous cool feeling is ensured, the phase change performance of the PCM is reserved to the maximum extent, and the fabric has the performances of high Qmax value (heat flux density), air permeability and phase change stability, and can be widely applied to the fields of cool feeling quilts, pillowcases, sheets, clothing and the like. Meanwhile, the invention also discloses a preparation method and application of the fabric.

Inventors

  • ZHU XINGJIAN
  • ZHANG XIBIAO
  • GU YISHI

Assignees

  • 无锡旭佰科技服务有限公司

Dates

Publication Date
20260512
Application Date
20260312

Claims (10)

  1. 1. The continuous cool sense fabric based on the phase change material is characterized by being made by interweaving composite yarns and spandex; The composite yarn comprises PCM nylon and common FDY nylon, wherein the mass percentage of the PCM nylon in the composite yarn is not higher than 50%; the specification of the composite yarn is 80D/60F, and the specification of the spandex is 20D.
  2. 2. The continuous cool feeling fabric based on phase change material as claimed in claim 1, wherein the PCM chinlon has a specification of 40D/36F and a phase change temperature range of 23-33 ℃.
  3. 3. Continuous cool feeling fabric based on phase change material according to claim 1 or 2, characterized in that the mass percentage of PCM chinlon in the composite yarn is 40-50%.
  4. 4. The continuous cool feeling fabric based on phase change material as claimed in claim 1, wherein the specification of the common FDY nylon is 40D/24F.
  5. 5. The continuous cool feeling fabric based on phase change material as claimed in claim 1, wherein the fabric is a single-sided elastic jersey structure; And/or the phase transition temperature interval of the fabric is 17.9-32.0 ℃; and/or the melting enthalpy of the fabric is more than or equal to 18J/g; and/or the crystallization enthalpy of the fabric is more than or equal to 19J/g; And/or, the Qmax value of the fabric subjected to JIS L1927:2020 standard test is more than or equal to 0.5W/cm < 2 >; and/or the air permeability of the fabric is more than or equal to 200mm/s after being tested by ISO 9237:1995 standard.
  6. 6. A method for preparing a continuous cool feeling fabric based on a phase change material as claimed in any one of claims 1 to 5, wherein the method comprises the following steps: (1) Yarn preparation, namely doubling PCM nylon and common FDY nylon to form composite yarn; (2) Weaving, namely interweaving the composite yarn obtained in the step (1) with spandex through a weft knitting circular knitting machine, wherein the weaving speed is less than or equal to 12 revolutions per minute, and obtaining grey cloth; (3) And (3) dyeing and finishing, namely washing the grey cloth obtained in the step (2) with water to remove oil and pre-shaping, dyeing and shaping a finished product, controlling the pH value in the dyeing process to be 4-6, obtaining a finished product, and checking to obtain the fabric.
  7. 7. The method for preparing the continuous cool feeling fabric based on the phase change material as claimed in claim 6, wherein the PCM chinlon is placed in a workshop environment for 12-48 hours before the PCM chinlon is combined with the common FDY chinlon in the step (1); and/or the temperature of weaving in the step (2) is 20-25 ℃ and the humidity is 60-70%; And/or, the neutral degreasing agent is added in the water oil washing process in the step (3), the water washing temperature is 80-85 ℃, and the water washing speed is 20-30 yards/min; and/or, in the step (3), ten-section setting machines are adopted for the pre-setting, the pre-setting temperature is 190-205 ℃, and the pre-setting speed is 10-30 yards/min; and/or dyeing in the step (3) comprises mixing grey cloth with a dyeing agent and a dyeing auxiliary agent, heating for dyeing, then cooling, performing soaping, hot water washing and cold water washing, and then dehydrating; And/or, the shaping temperature of the finished product in the step (3) is 160-170 ℃, the shaping speed of the finished product is 20-30 yards/min, and an antioxidant, a handfeel adjusting auxiliary agent and a moisture absorption quick drying auxiliary agent are added during shaping of the finished product.
  8. 8. The method for producing a continuous cool feeling fabric based on a phase change material according to claim 7, wherein in the step (3), the dyeing auxiliary agent used in the dyeing includes a bath softener, a high-temperature dispersing leveling agent, a repairing agent and a PH sliding agent; And/or, in the dyeing process in the step (3), firstly, slowly adding a coloring agent and a dyeing auxiliary agent into the grey cloth, and operating for 10-30 minutes, gradually heating to 98-105 ℃, wherein the heating speed is 0.5 ℃ per minute, and the heat preservation time is 120-180 minutes; and/or, the temperature in the dyeing process in the step (3) is reduced by stages, and finally the temperature is reduced to 70-90 ℃; And/or, the soaping in the dyeing process in the step (3) adopts a nonionic surfactant, the soaping temperature is 70-90 ℃, and the soaping time is 10-30 minutes; And/or the temperature of hot water washing in the dyeing process in the step (3) is 50-70 ℃, and the hot water washing time is 5-15min; And/or the cold water washing temperature in the dyeing process in the step (3) is 30-40 ℃ and the cold water washing time is 5-15min.
  9. 9. The method for producing a continuous cool feeling fabric based on a phase change material according to claim 8, wherein the temperature rise during dyeing in the step (3) comprises the steps of heating to 40-60 ℃ at a rate of 0.5 ℃ per minute, maintaining for 20min, heating to 60-70 ℃ at a rate of 0.5 ℃ per minute, maintaining for 30min, heating to 70-80 ℃ at a rate of 0.5 ℃ per minute, maintaining for 30min, heating to 80-98 ℃ at a rate of 0.5 ℃ per minute, maintaining for 40min, and heating to 98-105 ℃ at a rate of 0.5 ℃ per minute, maintaining for 30min; and/or the temperature reduction in the dyeing process of the step (3) comprises the steps of reducing the temperature to 90-105 ℃ at 0.5 ℃ per minute for 20min, and then reducing the temperature to 70-90 ℃ at 1 ℃ per minute.
  10. 10. Use of a continuous cool feeling fabric based on phase change material according to any one of claims 1-5 in clothing and/or home textile.

Description

Continuous cool sense fabric based on phase change material and preparation method and application thereof Technical Field The invention belongs to the technical field of textile fabrics, and particularly relates to a cool fabric with a phase-change temperature control function, a preparation method and application thereof. Background With the improvement of living standard and the upgrading of consumption demand, consumers increasingly increase the demands of functionality and comfort of close-fitting textiles such as home textiles and clothes, and the like, and the cool sense fabric is used as a core demand product in summer and high-temperature environments, so that the market attention is continuously increased. The cool sense fabric has the core advantages that the material or structural design is adopted to realize the effective regulation of the body surface temperature of a human body, relieve the stuffy discomfort, and the application scene of the cool sense fabric is widely covered in the fields of cool sense quilts, pillowcases, bedsheets, sportswear and the like. At present, the common cool sense fabric which depends on the heat conductivity of the fiber or surface coating treatment is mainly divided into two types, and the initial cool sense experience is realized by rapidly conducting heat or reducing heat absorption, but the fabric lacks of temperature buffering and continuous adjusting capability, has short cool sense effect, is easily influenced by environmental temperature change, and loses cool sense function after being used for a period of time. The other type is cool sense fabric prepared by using Phase Change Material (PCM) fibers, the phase change characteristics of heat absorption and heat release of the phase change material in a specific temperature range are utilized to realize temperature dynamic adjustment, continuous cool sense can be provided theoretically, but the conventional PCM cool sense fabric generally adopts high proportion of PCM fibers (the content is 70% -100%) to ensure cool sense effect, so that the cost of raw materials is greatly increased, the large-scale application requirements of mass consumer markets such as home textiles are difficult to meet, and in addition, the fabric with high PCM content has defects in physical properties such as softness and elasticity, and the use comfort is influenced. Meanwhile, the PCM fiber is extremely sensitive to technological parameters such as temperature, tension, pH value and the like in the weaving and dyeing processes. The prior art lacks a special process design for PCM fibers, often causes problems of friction heating, uncontrolled dyeing pH value and the like due to too fast weaving speed, damages the PCM microcapsule structure, causes loss of phase change enthalpy value (usually 20% -30%), reduces phase change effect, and seriously influences the cool feeling effect and stability of the fabric. Therefore, the existing common cool fabric only provides initial cool feeling, lacks temperature buffering capacity, cannot realize continuous comfort, has significant yarn raw material cost with high PCM content (> 50%), not only limits the application of the fabric in the home textile mass market, but also is easy to cause loss of phase change enthalpy value due to improper control of vehicle speed, tension and temperature because the PCM fiber is sensitive in weaving and dyeing. The existing fabric is often focused on one of cool feeling and air permeability, and is difficult to achieve high Qmax value (heat flux density), air permeability and phase change stability. The development of the cool fabric which has lasting cool feeling, high comfort, controllable cost and stable process becomes a technical problem to be solved in the textile field. Disclosure of Invention The invention aims to overcome the problems in the prior art and provide the fabric which can provide continuous cool feeling, has high air permeability and is low in cost. Meanwhile, the invention also provides a preparation method and application of the fabric. In order to achieve the aim, in a first aspect, the invention provides a continuous cool feeling fabric based on a phase change material, which is made by interweaving composite yarns and spandex, wherein the composite yarns comprise PCM nylon and common FDY nylon, the mass percentage of the PCM nylon in the composite yarns is not higher than 50%, the specification of the composite yarns is 80D/60F, and the specification of the spandex is 20D. The PCM nylon is intelligent functional fiber formed by fusing phase change material (PHASECHANGEMATERIAL, PCM) with nylon (polyamide fiber) through a microcapsule packaging technology. According to the invention, the PCM nylon and the common FDY nylon are adopted to form the composite yarn, and the PCM nylon and the common nylon are combined to form the 80D/60F composite yarn, so that the PCM microcapsules are uniformly dispersed in the yarn, the local concen