JP3242695U - A fabric with a continuous cooling sensation - Google Patents

Abstract

An object of the present invention is to provide a woven fabric having a continuous cooling sensation. A woven fabric having a continuous cooling sensation, comprising a fiber base layer 1 and a continuous cooling sensation layer 2, wherein the continuous cooling sensation layer is directly combined on one or both sides of the fiber base layer by padding, coating or printing. A persistent cooling sensation layer comprising a phase change material 3, an emulsifier, a binder, a cross-linking agent, a penetrant and an antifoaming agent is deposited on the fibrous base layer by padding, coating or printing. Since the phase change material of the continuous cool feeling layer does not need to be microencapsulated, there is no limitation due to microcapsules, and the phase change material can exert its effect at the appropriate time. Materials can respond quickly. The continuous cool feeling of the fabric is ensured, which improves the comfort during use, and the phase change material also has antibacterial properties, which can reduce bacterial growth and maintain cleanliness and health. [Selection drawing] Fig. 1

Description

FIELD OF THE INVENTION The present invention relates to the technical field of textiles, and more particularly to fabrics with continuous cooling sensation.

With economic development, the demand for comfort is increasing more and more.
Temperature and humidity have a direct impact on the comfort of the human body. The human body is extremely sensitive to temperature, and the focus of current research is how to keep the skin cool in the summer and how to keep the body warm in the winter. A phase change material is a material that absorbs or releases heat by using the change in the state of matter to adjust the temperature. Often used in textiles to absorb heat when the ambient temperature rises, making the temperature rise slower than products without added phase change materials, and release heat when the ambient temperature drops, adding phase change materials It acts as a temperature regulator that cools down more slowly than products that do not.

Phase transition materials are generally n-alkanes, hydrated inorganic salts, polyols, higher fatty acids, higher aliphatic alcohols, and the like. When these phase change materials are used, phase change microcapsule technology is generally used to make the transition material into a core-shell structure, that is, the phase change material is coated with melamine resin or monomer polymerization to form microcapsules, and further It is applied to textile materials by adding during spinning or by printing.

For example, Patent No. CN110317579A discloses a microcapsule-type phase change energy storage material, its method of manufacture and use, wherein the microcapsule-type phase change energy storage material comprises a core and two layers of wall material, wherein the core comprises It contains fatty acid ester-based phase change material, the inner layer wall material is polyethyleneimine, the outer layer wall material is polyvinylpyrrolidone, and the two-layer microcapsules are produced by electrostatic action force and cross-linking action, and can be used in textiles, cold chains, building materials. , aerospace and other fields.

Also disclosed in Patent No. CN112709080A is a fabric processing liquid and its use in the manufacture of fabric, wherein the phase transition microcapsules are mixed with a water-based adhesive, an antibacterial agent, a stabilizer, and a foaming agent in certain proportions and foamed to form a fabric. Apply evenly to the surface of the Although the method of combining microcapsule technology and phase change materials to produce long-lasting cooling sensation materials is now relatively mature, the selection of the microcapsule shell material is very important, and the subsequent processing process It is necessary to ensure that there is no rupture or leakage, and the presence of the microcapsules delays the action of the phase change material, making it impossible for the phase change material to fully exert its action.

The purpose of the present invention is to eliminate the limitation of the phase change material by microcapsules, directly attach the phase change material to the surface of the fabric in a specific way, fully play the role of the phase change material, and improve the temperature control effect. It's about making it work well.

In order to solve the above technical problems, the present invention solves the problem that the presence of microcapsules delays the action of the phase change material in the production of textiles, and the effect of the phase change material cannot be fully exhibited. To provide a woven fabric having a cool feeling.

The woven fabric with continuous cooling sensation according to the present invention includes a laminated fiber base layer and a continuous cooling sensation layer, and the continuous cooling sensation layer is directly combined on one or both sides of the fiber base layer by padding, coating or printing. It is

Preferably, the weight ratio of the fiber base layer and the continuous cool sensation layer is (2-5):1, and the weight ratio of the continuous cool sensation layer and the fiber base layer is determined according to the adopted method, such as padding. , is determined appropriately according to the requirements for coating or printing and hand feeling. If the weight ratio is less than 2:1, the proportion of the continuous cooling sensation layer is small and the desired effect cannot be obtained, and the weight ratio is 5: If it is greater than 1, the proportion of the sustained cooling layer is high and the hand of the fabric is adversely affected.

Preferably, the fiber base layer has a thickness of 0.1 to 2 mm, and the continuous cooling sensation layer has a thickness of 0.0
The thickness of the fiber base layer is 1 to 1 mm, and the fiber base layer woven fabric with different thickness is used depending on the usage scene. It affects the effect and the feel of the fabric, the thicker the continuous cooling layer, the better the effect, but the worse the feel, while the thinner the continuous cooling layer, the better the feel, but the worse the effect.

Preferably, the sustained cooling layer comprises a phase change material, an emulsifier, a binder, a cross-linking agent, a penetrant and an antifoaming agent.

Preferably, the continuous cooling sensation layer further comprises one or a combination of a cooling sensation material, an antibacterial material, and an antiviral material, and the cooling sensation material improves the cooling sensation of the woven fabric,
Advantageously, the antibacterial and antiviral materials themselves have the function of killing or inhibiting microorganisms, which can reduce bacterial growth and reduce the risk of re-diffusion.

Preferably, said phase change material has an enthalpy value of 180-230 J/g and a phase transition temperature of 28° C., 32° C. or a combination of these two phase transition temperatures.

Preferably, the phase change material is one or a combination of n-octadecane, fatty acids, fatty alcohols, reactants of fatty acids and fatty alcohols. A phase transition material that is one of these is reacted with an emulsifier, a binder, a cross-linking agent, a penetrant and an antifoaming agent in a predetermined ratio to obtain a continuous cool sensation layer material, and then the continuous cool sensation layer material is padded. The continuous cooling sensation layer is attached to one or both sides of the fiber base layer by coating or printing, and the woven fabric is dried at a temperature of 80° C. to 150° C. to obtain the continuous cooling sensation fabric of the present invention. The reaction product of fatty acid and fatty alcohol has low volatility, antibacterial properties, and no skin sensitization. A reaction product of a fatty acid and an fatty alcohol is preferably used because it is more suitable for exerting the effect of the cooling effect more effectively to provide a long-lasting cooling sensation.

Preferably, the emulsifier is a combination of an anion and a non-ion, or a combination of a cation and a non-ion, and since the emulsifier contains non-ions, it is resistant to hard water, is not limited by the pH value of the medium, is easy to use, and is non-ionic. Type emulsifiers are mainly polyol carboxylic acid esters and polyoxyethylene polyol carboxylic acid esters, and anionic emulsifiers mainly have phosphates, carboxylates, sulfates, sulfonates, etc. as hydrophilic groups, and can be used in alkaline media. and cationic emulsifiers are used in acidic media, usually primary amine salts,
There are secondary amine salts, tertiary amine salts, quaternary amine salts and the like.

Preferably, the binder is a polyacrylic acid ester or polyurethane having a carboxyl group, and the polyurethane binder has an isocyanate group (-NCO) and a carbamate group (-NH-COO-) in the molecular chain, and has higher activity. Polyisocyanate type polyacrylic acid ester binders are used, which are polar and suitable for textiles. It exhibits the function of improving the viscosity and imparting cross-linking sites, acts as a cross-linking catalyst, and itself has a thickening effect.

Preferably, the enthalpy value of said fabric is between 12 and 25 J/g.

Preferably, the fibrous base layer is one or a combination of any of non-woven fabrics, knitted fabrics and woven fabrics, more preferably the non-woven fabric, knitted fabric or woven fabric contains viscose fibers. It is

Preferably, when the fiber base layer is a nonwoven fabric, the fiber standard is 1.3D to 1.6D, such as 1.3D, 1.5D, 1.6D, and the fiber base layer is a knitted fabric or In the case of a woven fabric, the fiber standard is 50D to 400D, and the number of holes ranges from 24 to 144. Regarding the fiber standard, the fiber thickness is expressed in denier, and denier is abbreviated as D. and refers to the mass (g) possessed by a fiber or thread with a length of 9000 m at the official moisture content, and the hole number range is
When the fiber is a filament, it is the number of single fibers that make up the filament tow. For example, 150D/96F means that one filament tow with a fineness of 150D is made up of 96 monofilaments.

A fabric with a lasting cooling sensation, comprising the step of applying a lasting cooling sensation layer to produce said fabric on one or both sides of a fibrous base layer by padding, coating or printing.

Compared with the prior art, the woven fabric with continuous cooling sensation according to the present invention has the following beneficial effects.

The woven fabric of the present invention includes a fiber base layer and a continuous cooling sensation layer, and during manufacturing, a continuous cooling layer containing a phase change material, an emulsifier, a binder, a cross-linking agent, a penetrating agent and an antifoaming agent is applied by padding, coating or printing. Since the sensitive layer material is directly attached to the fiber base layer and the phase change material of the continuous cooling layer does not need to be microencapsulated, there is no risk of bursting when the shell is processed, thus minimizing the limitations imposed by microcapsules. Since there is no
When the environmental temperature changes, the phase change material of the fabric can respond quickly, which ensures the continuous cool feeling of the fabric and improves the comfort in use, and the phase change material according to the present invention. It also has antibacterial properties, which can reduce bacterial growth and keep you clean and healthy.

1 is a structural schematic diagram of Embodiment 1 of the present invention; FIG. FIG. 2 is a structural schematic diagram of Embodiment 2 of the present invention; Fig. 3 is a structural schematic diagram of Embodiment 3 of the present invention; FIG. 2 is a schematic diagram of the experimental test results of the present invention;

The following clearly and completely describes the technical solutions of the embodiments of the present invention with reference to the drawings of the embodiments of the present invention. Obviously, the described embodiments are just some embodiments of the present invention. , but not all examples. All other embodiments that a person skilled in the art can obtain without creative efforts based on the embodiments of the present invention belong to the patent scope of the present invention.
Example 1

A fabric having a continuous cool sensation includes a fiber base layer 1 and a continuous cool sensation layer 2, as shown in FIG. When specifically implemented, the continuous cool feeling layer 2 may be provided on one or both sides of the fiber base layer 1, and when the fiber base layer 1 and the continuous cool feeling layer 2 are produced, the padding is used to sustain the cold feeling. The cooling sensation layer 2 can be deposited on the limiting substrate layer, the phase change material 2 in the sustained cooling sensation layer does not need to be microencapsulated, and the phase change material 2 in the sustained cooling sensation layer can be microencapsulated. The continuous cooling sensation layer 2 of this fabric is free from the limitations imposed by the capsule wall material and can exhibit its action in a timely manner when the environmental temperature changes.
can respond quickly, which ensures a lasting coolness of the fabric and increases comfort in use. In addition, the phase change material according to the present invention also has antibacterial properties, reduces bacterial growth,
You can keep yourself clean and healthy.

When specifically implemented, the continuous cooling sensation layer 2 is 20% to 50% of the entire fabric with continuous cooling sensation.
%, and the higher the proportion occupied by the continuous cooling sensation layer 2, the better the temperature control effect of the fabric, and the higher the production cost. During production, the continuous cooling sensation layer 2 accounts for 20% to 30% of the entire fabric, but the optimal ratio is 30% of the entire fabric, and the continuous cooling layer 2 accounts for 30% of the entire fabric. If the sensitive layer 2 occupies 30% of the total fabric, this fabric will keep the cost reasonable while ensuring a lasting cool feeling, and will be acceptable to general consumers.

Specifically, the continuous cooling sensation layer 2 comprises a phase change material 3, an emulsifier, a binder, a cross-linking agent that is a persulfate,
Including penetrants and antifoam agents, phase change material 3, when produced, comprises n-octadecane, fatty acids,
One or a combination of fatty alcohols, reactants of fatty acids and fatty alcohols are used.

Taking a reaction product of a fatty acid and an aliphatic alcohol as an example of the phase transition material 3, reacting the reaction product of the fatty acid and an aliphatic alcohol with an emulsifier, a binder, a cross-linking agent, a penetrating agent and an antifoaming agent in a predetermined proportion, After obtaining the continuous cooling sensation layer material, the continuous cooling sensation layer material is attached to one or both sides of the fiber base layer by padding, coating or printing, and the fabric with the continuous cooling sensation layer 2 attached is heated at 80 ° C.
Dry at a temperature of 150° C. to obtain a woven fabric with a lasting cooling sensation according to the present invention.

Except for using the fatty acid and the fatty alcohol as raw materials for the phase change material 3 instead of the reaction product of the fatty acid and the fatty alcohol, the other conditions are the same as above, and will not be described in detail here.

Further, in production, each phase change material 3 has an enthalpy value of 180-230 J/g and a phase transition temperature of 28° C., 32° C. or a combination of these two phase transition temperatures.

The emulsifier is a combination of an anion and a non-ion, or a combination of a cation and a non-ion. Because the emulsifier contains non-ions, it is resistant to hard water, is not limited by the pH value of the medium, and is easy to use. Non-ionic emulsifiers are mainly used. are polyol carboxylic acid esters and polyoxyethylene polyol carboxylic acid esters, and anionic emulsifiers mainly have phosphates, carboxylates, sulfates, sulfonates, etc. as hydrophilic groups, and are used in alkaline media. is,
Cationic emulsifiers are used in acidic media and typically include primary, secondary, tertiary and quaternary amine salts.

Combinations of anions and nonions or cations and nonions are used herein.

The binder is a polyacrylic acid ester or polyurethane having a carboxyl group.
- is used in the molecular chain, has higher activity and polarity, and is suitable for textiles. and the like, improve the stability of the pressure-sensitive adhesive emulsion, exhibit the function of providing a cross-linking site, act as a cross-linking catalyst, and itself have a thickening effect.

The enthalpy value of the fabric is 12 to 25 J/g, and the fiber base layer 1 is one or a combination of a plurality of nonwoven fabrics, knitted fabrics, and woven fabrics, preferably the nonwoven fabric, knitted fabric, or The woven fabric contains viscose fibers.

Furthermore, the continuous cool sensation layer 2 further includes one or a combination of any of a cooling sensation material, an antibacterial material, and an antiviral material, and the cooling sensation material improves the cooling sensation of the woven fabric and provides a continuous cooling sensation. The antibacterial and antiviral materials themselves have the function of killing or inhibiting microorganisms, which can reduce bacterial growth and reduce the risk of re-spreading.

A woven fabric having a continuous cool sensation, firstly, a continuous cool sensation layer 2 is attached to one or both sides of the fiber base layer 1 by padding, specifically, a tank filled with the padding of the continuous cool sensation layer 2 Dipping the textile inside, soaking and softening the textile with the persistent cooling layer 2, quickly rolling by two rollers, and baking to complete the production of the textile.

The working principle of the fabric with continuous cool feeling according to the present invention is as follows. The woven fabric of the present invention comprises a fiber base layer 1 and a continuous cooling sensation layer 2, and during production, a phase change material 3, an emulsifier, a binder, a cross-linking agent, a penetrating agent and an antifoaming agent are added by padding, coating or printing. Containing continuous cooling sensation layer 2
is attached directly onto the fiber base layer 1, and the phase change material 3 of the continuous cooling sensation layer 2 does not need to be microencapsulated, so there is no risk of bursting when the shell is processed. Since there is no limit, the phase change material 3 can exert its action in time, and when the environmental temperature changes, the phase change material 3 of this fabric can respond quickly, thereby:
The continuous cool feeling of the fabric is ensured, which improves the comfort during use, and the phase change material also has antibacterial properties, which can reduce bacterial growth and maintain cleanliness and health.
Example 2

The fabric comprises a fiber base layer 1 and a continuous cool sensation layer 2, and in the specific implementation, the continuous cool sensation layer 2 may be provided on one or both sides of the fiber base layer 1, and the fiber base layer 1 and the continuous cooling layer 2, the continuous cooling layer 2 can be adhered onto the limiting substrate layer by coating, and the continuous cooling layer 2 is microencapsulated in the same manner as above. Since it is not necessary, the continuous cooling sensation layer 2 is not limited by microcapsules, and can directly contact the surrounding environment to detect the temperature and exert its effect in a timely manner. The continuous cooling sensation layer 2 can respond quickly, ensuring the continuous cooling sensation of the fabric and improving comfort during use. You can keep your pods healthy.
Example 3

The fabric comprises a fiber base layer 1 and a continuous cool sensation layer 2, and in the specific implementation, the continuous cool sensation layer 2 may be provided on one or both sides of the fiber base layer 1, and the fiber base layer 1 and the continuous cooling sensation layer 2, the continuous cooling sensation layer 2 can be adhered onto the limiting substrate layer by printing, and the continuous cooling sensation layer 2 is microencapsulated in the same manner as above. The continuous cooling sensation layer 2 is not limited by microcapsules, and can directly contact the surrounding environment to detect the temperature and exert its effect in a timely manner. The cooling sensation layer 2 can respond quickly, ensuring a continuous cooling sensation of the fabric and improving comfort during use. You can stay healthy.
performance test

The fabrics in Examples 1, 2 and 3 are tested for sustained coolness throughout the experiment.

Specifically, a 15 cm*15 cm sample was dried in a dry box for 4 hours, then placed in a dryer containing silicone rubber and left overnight, and the sample was rolled and folded in four, with the test sensor placed in the center. Set, set the temperature of the constant temperature and humidity machine to 20 ° C and the humidity to 60%, leave it for 2 hours, adjust the temperature and humidity machine to 40 ° C, hold the humidity, hold for 15 min, every 10 s to obtain the test results shown in FIG. 4, where the abscissa is time and the ordinate is temperature. As can be seen from FIG. 4, when the environmental temperature rises, the temperature rise of the fabrics produced in Examples 1, 2 and 3 is slow, and a continuous cooling sensation effect is observed. The woven fabric does not need to microencapsulate the phase change material 3 of the continuous cooling layer 2, so there is no risk of bursting when the shell is processed, so there is no limitation due to microcapsules, so the phase change material 3 can exert its effect in time, and when the environmental temperature changes, the phase change material 3 of the fabric can respond quickly, so as to ensure the continuous coolness of the fabric,
Increased comfort during use. The fabric produced by the technical solution of the present invention has the characteristics of slow temperature rise and temperature drop, which gives comfort to the wearer, and the phase change material also has antibacterial properties, which reduces the growth of bacteria. , cleanliness and health.

First of all, in the description of the present application, the terms “attachment”, “connection”, and “connection” should be understood in a broad sense, unless otherwise specified or regulated. It may be an internal communication between two components, or it may be a direct connection. However, if the absolute position of the object to be described changes, the relative positional relationship may also change.

In addition, the drawings of the embodiments disclosed in the present invention only show the structures related to the embodiments of the present disclosure, other structures can refer to the general design, unless inconsistent, the present invention The same and different embodiments of can be combined with each other,

Finally, the above is merely a preferred embodiment of the present invention, and is not intended to limit the present invention. The invention shall be included in the patent scope.

1 fiber base layer 2 persistent cool feeling layer 3 phase change material

Claims (11)

A woven fabric with a continuous cooling sensation,
comprising a fibrous base layer (1) and a continuous cooling sensation layer (2), one or both sides of the fibrous base layer (1) are coated with a phase change material (3), an emulsifier, a binder, a cross-linking agent, A fabric characterized in that a continuous cooling layer (2) containing a penetrating agent and an antifoaming agent is directly attached. The woven fabric with a continuous cool feeling according to claim 1, wherein the mass ratio of the fiber base layer and the continuous cool feeling layer is (2-5):1. The woven fabric with a continuous cooling sensation according to claim 1, wherein the fiber base layer has a thickness of 0.1-2 mm, and the continuous cooling sensation layer has a thickness of 0.01-1 mm. The phase transition material (3) has an enthalpy value of 180 to 230 J/g and a phase transition temperature of 2
8° C., 32° C. or a combination of these two phase transition temperatures, said phase transition material (3) being one of n-octadecane, fatty acids, fatty alcohols, reactants of fatty acids and fatty alcohols, or The woven fabric with a continuous cooling sensation according to claim 1, characterized in that it is a combination. 2. The fabric with continuous cooling sensation according to claim 1, wherein the emulsifier is a combination of anion and non-ion or a combination of cation and non-ion. [Claim 2] The woven fabric with continuous cooling sensation according to claim 1, wherein the binder is polyacrylic acid ester or polyurethane having carboxyl groups. The woven fabric with a continuous cooling sensation according to claim 1, wherein the enthalpy value of the woven fabric is 12-25 J/g. 2. The fabric with continuous cooling sensation according to claim 1, characterized in that said fibrous base layer (1) is one of non-woven fabric, knitted fabric and woven fabric, or any combination thereof. When the fiber base layer is a nonwoven fabric, the fiber standard is 1.3D to 1.6D, and when the fiber base layer is a knitted fabric or a woven fabric, the fiber standard is 50D to 400D, 8. The woven fabric with continuous cooling sensation according to claim 7, wherein the number of holes ranges from 24 to 144. 2. The continuous cooling sensation according to claim 1, wherein the continuous cooling sensation layer (2) further comprises one or a combination of a cooling sensation material, an antibacterial material and an antiviral material. fabric. 7. Any one of claims 1 to 6, characterized in that it comprises the step of attaching a persistent cooling layer (2) for producing said fabric to one or both sides of the fibrous substrate layer (1) by padding, coating or printing. 2. The woven fabric having a continuous cool sensation according to item 1 or 2.

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