CN114601221A - Warm-keeping down jacket with spontaneous heating function and preparation method thereof - Google Patents
Warm-keeping down jacket with spontaneous heating function and preparation method thereof Download PDFInfo
- Publication number
- CN114601221A CN114601221A CN202210310545.7A CN202210310545A CN114601221A CN 114601221 A CN114601221 A CN 114601221A CN 202210310545 A CN202210310545 A CN 202210310545A CN 114601221 A CN114601221 A CN 114601221A
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- Prior art keywords
- layer
- fibers
- fabric
- down jacket
- heating
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- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 230000002269 spontaneous effect Effects 0.000 title claims description 27
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
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- 229910002804 graphite Inorganic materials 0.000 claims abstract description 45
- 239000010439 graphite Substances 0.000 claims abstract description 45
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
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- 238000009940 knitting Methods 0.000 claims description 21
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- 239000011241 protective layer Substances 0.000 claims description 17
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- 239000003093 cationic surfactant Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
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- CXRFDZFCGOPDTD-UHFFFAOYSA-M Cetrimide Chemical compound [Br-].CCCCCCCCCCCCCC[N+](C)(C)C CXRFDZFCGOPDTD-UHFFFAOYSA-M 0.000 claims description 2
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- AUNGANRZJHBGPY-UHFFFAOYSA-N D-Lyxoflavin Natural products OCC(O)C(O)C(O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-UHFFFAOYSA-N 0.000 description 2
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- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
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- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 1
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Images
Classifications
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- A41D31/00—Materials specially adapted for outerwear
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- D03D15/52—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads thermal insulating, e.g. heating or cooling
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- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
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Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Fluid Mechanics (AREA)
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Abstract
The invention relates to a warm-keeping down jacket with self-heating function and a preparation method thereof, wherein an adhesive is utilized to fixedly seal expanded graphite on wool fibers and acrylic fibers, the wool fibers and the acrylic fibers are woven into a honeycomb-shaped structure and are matched with a self-heating layer for use, when the self-heating layer generates heat, the temperature can enable the expanded graphite to play an expansion role, at the moment, gaps woven between the wool fibers and the acrylic fibers can be conveniently and rapidly reduced, the wool fibers are additionally used for playing a role in high heat preservation, the heat of the down jacket is prevented from being rapidly dissipated, meanwhile, a honeycomb-shaped net structure woven by the wool fibers and the acrylic fibers has good memory, when the down jacket is cleaned, due to the relative friction between the wool fibers and the acrylic fibers, the cleaned down is adhered to the wool fibers and the acrylic fibers, and after water is evaporated, the down can be uniformly distributed in an inner container, and is convenient for quick expansion and excellent in warmth retention property.
Description
Technical Field
The invention belongs to the technical field of down jackets, and particularly relates to a thermal down jacket with a spontaneous heating function and a preparation method thereof.
Background
The jacket filled with the down filling material in the down jacket has a huge and mellow appearance. The down jacket generally has more than half of the amount of the duck down, and meanwhile, some fine feathers can be mixed, the duck down is cleaned and disinfected at high temperature, and then the down jacket is filled in clothes. The down jacket has the best warmth retention property. It is usually worn by people in cold regions and is also commonly used by polar researchers.
Down is the best natural material for human warming to date, and down jackets are the main products in the down industry, filled with down fillers. In the process of changing down jacket products to fashion, leisure, sports, individuation and the like, the updating and the updating of related fabric auxiliary material products are also promoted, wherein the grade and the level of the fabric products play a vital role in the down jacket.
The heating fiber is a novel fiber which can generate heat and keep warm. The fiber can not only prevent heat dissipation like the traditional fiber, but also absorb and store external heat and transmit the heat to human bodies. In terms of heat generation mechanism, the heat-generating fibers mainly include several types, such as light energy heat generation, electric energy heat generation, phase change heat release, chemical heat release, moisture absorption heat release and the like.
The expanded graphite is a loose and porous vermicular substance obtained by intercalating, washing, drying and expanding natural flake expanded graphite at high temperature. EG has excellent properties such as cold/heat resistance, corrosion resistance, self-lubrication, etc. of natural expanded graphite itself, and also has characteristics such as softness, compression resilience, adsorptivity, ecological environment compatibility, biocompatibility, radiation resistance, etc. which natural expanded graphite does not have. The expanded graphite can instantaneously expand 150 times and 300 times in volume when meeting high temperature, and is changed into a worm shape from a sheet shape, so that the structure is loose, the expanded graphite is porous and bent, the surface area is enlarged, the surface energy is improved, the force for adsorbing flake expanded graphite is enhanced, and the worm-shaped expanded graphite can be automatically embedded, so that the softness, resilience and plasticity of the expanded graphite are improved.
Expanded graphite product characteristics: the pressure resistance, flexibility, plasticity and self-lubricating property are extremely strong; the high and low temperature resistance, corrosion resistance and radiation resistance are extremely strong; extremely strong shock resistance; extremely strong electrical conductivity; strong anti-aging and anti-distortion properties; can resist the melting and infiltration of various metals; the paint is harmless, does not contain any harmful substance, and has no harm to the environment; the expandable expanded graphite sheet has expansion characteristics different from those of other expanding agents, and when heated to a certain temperature, the expandable graphite begins to expand due to decomposition of compounds occluded in the interlaminar lattice, which is called initial expansion temperature, and the expandable graphite completely expands to the maximum volume at 1000 ℃. The expansion volume can be up to more than 200 times the initial volume.
When the down jacket needs to be worn, due to the fact that heat is easy to lose, the self-heating effect of the used heating fabric is not obvious, in the process that the heating of the fabric is transmitted, the down plays a key role, the filling power of the down and the uniformity of distribution in the liner directly influence the heat-insulating effect, however, when the down jacket is washed, the down contacts water and can be accumulated into a mass, the heat-insulating effect is greatly reduced, and therefore the heat-insulating down jacket with the self-heating function is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the problems and provide a thermal down jacket with a spontaneous heating function and a preparation method thereof.
The invention realizes the purpose through the following technical scheme:
the warm-keeping down jacket with the self-heating function comprises a composite heating fabric and a down filler, wherein the composite heating fabric is sequentially provided with a protective layer, a self-heating layer, a heat-insulating layer and an expansion layer from outside to inside, and the expansion layer comprises wool fibers, acrylic fibers, expanded graphite, ascorbic acid and an adhesive.
As a further optimization scheme of the invention, the method comprises the following steps of: the expansion layer comprises 40-50% of wool fiber, 25-30% of acrylic fiber, 20-25% of expanded graphite, 1% -10% of ascorbic acid and 4-18% of adhesive.
As a further optimization scheme of the invention, the method comprises the following steps of: the protective layer comprises 60-65% of carbon fiber and 35-40% of polyester fiber.
As a further optimization scheme of the invention, the method comprises the following steps of: the self-heating layer comprises 60-70% of heating fibers and 30-40% of cotton threads.
As a further optimization scheme of the invention, the method comprises the following steps of: the heat-insulating layer is made of a delinted fabric.
As a further optimization scheme of the invention, the preparation method of the thermal down jacket with the spontaneous heating function comprises the following preparation steps:
step 1: the knitting needle arrangement mode is that three groups of dial needles which are alternated in pairs and a cylinder needle which is arranged at intervals of a drawing needle are adopted; knitting wool fibers and acrylic fibers by a knitting machine according to a knitting needle arrangement mode, and then forming a honeycomb mesh fabric by utilizing high-temperature hot pressing;
then, diluting with pure water to obtain an oxidized expanded graphite water solution with the concentration of 0.006-0.7%; adding 1-40 ml of cationic surfactant into a solvent, completely dissolving to prepare a solution, soaking a previously washed honeycomb mesh fabric in the solution for 30-60 min, finally adding an adhesive, mixing and standing for 10-20 min, taking out the soaked fabric, washing with pure water, and naturally drying or drying at 40-65 ℃ to obtain a composite honeycomb mesh fabric with positive charges on the surface;
the solvent is any one or a mixture of several of pure water or ethanol and isopropanol, and the cationic surfactant is any one or a mixture of several of octadecyl trimethyl ammonium bromide, octadecyl dimethyl amine oxide, tetradecyl dimethyl tertiary amine, tetradecyl trimethyl ammonium bromide, dodecyl dimethyl tertiary amine and dodecyl trimethyl ammonium bromide.
Placing the composite honeycomb mesh fabric into an oxidized expanded graphite aqueous solution for soaking reaction for 10-50 min, then taking out the composite honeycomb mesh fabric from the solution, soaking and washing the composite honeycomb mesh fabric for more than 5 times by using pure water, and soaking the composite honeycomb mesh fabric in the pure water at 90-100 ℃ for 3-20 min to obtain a composite product;
finally, adding 20-50 g of ascorbic acid into pure water, completely dissolving, immersing the composite product into the solution, reacting at the temperature of 95-100 ℃ for 40-60 min to form a sample, taking out the sample, soaking and washing the sample for more than 3 times with the pure water, and naturally airing or drying at the temperature of 40-65 ℃ for 12-72 h to form an expansion layer with a thermal expansion function;
step 2: sizing heating fibers according to a proportion, wherein the heating fibers are ceramic fibers or magnetic fibers, then cotton filaments are used as warps and wefts, a rapier loom is used for weaving, a double-layer fabric is woven, and the fabric is subjected to ultrasonic wave synergistic cellulase softening finishing technology, wherein the cellulase is used in an amount of 2.0%, the bath ratio is 1:20, the pH value is 6.0, the temperature is 40-50 ℃, and the time is 50min, so that a self-heating layer with a self-heating function is formed;
and step 3: according to the proportion, placing the carbon fiber and the polyester fiber in a needle machine, carrying out needle punching for 60-120s at the density of 2000-; adding expanded graphite powder into pure water, and performing ultrasonic treatment for 40-50 min to finally form the protective layer;
and 4, step 4: stacking the self-heating layer and the heat-insulating layer prepared in the step (2) layer by layer, wherein the number of stacked layers is at least 2, placing the stacked fabric between the protective layer and the expansion layer, and performing composite molding in a high-temperature hot-pressing mode to obtain a multi-layer composite heating fabric, wherein the high-temperature hot-pressing temperature is 80-100 ℃, the pressure is 10-15Pa, and the time is 20-40 s;
and 5: and (4) taking the expansion layer as an inner layer of the multilayer composite heating fabric prepared in the step (4), cutting and shaping to form an inner container, filling the down filler into the inner container, wherein the down filler is down of duck down or goose down to form each component of the down jacket, and sewing the components to form the thermal down jacket with the self-heating function.
The invention has the beneficial effects that: the thermal down jacket with the self-heating function has the advantages that the thermal down jacket with the self-heating function is characterized in that an expansion layer is synthesized by utilizing wool fibers, acrylic fibers and expanded graphite and an adhesive, the expanded graphite is fixedly sealed on the wool fibers and the acrylic fibers by the adhesive, the wool fibers and the acrylic fibers are woven into a honeycomb porous structure and matched with the self-heating layer, when the self-heating layer generates heat, the expanded graphite can expand at the temperature, gaps woven between the wool fibers and the acrylic fibers can be conveniently and quickly reduced at the moment, the wool fibers and the acrylic fibers are added to play a role in high thermal insulation, the heat of the down jacket is prevented from being quickly dissipated, meanwhile, a honeycomb net-shaped structure woven by the wool fibers and the acrylic fibers has good memory, when the down jacket is cleaned, the down can be kneaded inside the fabric, so that the down is unevenly distributed, due to relative friction between the wool fibers and the acrylic fibers, the cleaned down feather is adhered to the wool fibers and the acrylic fibers, and after water is evaporated, the down feather can be uniformly distributed in the liner, and is convenient to rapidly expand, so that the thermal insulation property is excellent.
Drawings
Fig. 1 is a schematic view of a detachable fabric main view axis side structure according to the present invention.
In the figure: 1. a protective layer; 2. a self-heating layer; 3. a heat-insulating layer; 4. an intumescent layer.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1: a warm-keeping down jacket with a self-heating function comprises a composite heating fabric and a down filling material, wherein the composite heating fabric is sequentially provided with a protective layer 1, a self-heating layer 2, a heat preservation layer 3 and an expansion layer 4 from outside to inside, the expansion layer 4 comprises wool fibers, acrylic fibers, expanded graphite, ascorbic acid and an adhesive, and the heat preservation layer 3 is a de-eiderdown fabric.
The preparation method of the warm-keeping down jacket with the spontaneous heating function comprises the following preparation steps:
step 1: the knitting needle arrangement mode is that three groups of dial needles which are alternated in pairs and a cylinder needle which is arranged at intervals of a drawing needle are adopted; knitting wool fibers and acrylic fibers by a knitting machine according to a knitting needle arrangement mode, and then forming a honeycomb mesh fabric by utilizing high-temperature hot pressing;
then, diluting with pure water to obtain an oxidized expanded graphite aqueous solution with the concentration of 0.6 percent; then adding 40ml of cationic surfactant into the solvent, preparing a solution after complete dissolution, soaking the previously washed honeycomb mesh fabric in the solution for 40min, finally adding the adhesive, mixing and standing for 20min, taking out the soaked fabric, washing with pure water, and naturally drying in the air or drying at the temperature of 40-65 ℃ to obtain the composite honeycomb mesh fabric with positive charges on the surface;
wherein the solvent is ethanol, and the cationic surfactant is octadecyl dimethyl amine oxide.
Placing the composite honeycomb mesh fabric into an oxidized expanded graphite aqueous solution for soaking reaction for 40min, then taking out the composite honeycomb mesh fabric from the solution, soaking and washing the composite honeycomb mesh fabric for 6 times by using pure water, and soaking the composite honeycomb mesh fabric in the pure water at the temperature of 95 ℃ for 20min to obtain a composite product;
finally, adding 40g of ascorbic acid into pure water, completely dissolving, immersing the composite product into the solution, reacting for 60min at the temperature of 95 ℃ to form a sample, taking out the sample, soaking and washing the sample for 4 times by using the pure water, naturally airing or drying for 72h at the temperature of 65 ℃ to form an expansion layer 4 with a thermal expansion function, wherein the composite product comprises the following components in percentage by mass: the expanded layer 4 comprises 40% of wool fibers, 25% of acrylic fibers, 20% of expanded graphite, 10% of ascorbic acid and 5% of a binder;
step 2: according to the proportion, sizing is carried out on heating fibers, wherein the heating fibers are ceramic fibers or magnetic fibers, cotton filaments are used as warps and wefts, a rapier loom is adopted for weaving, a double-layer fabric is woven, the fabric is subjected to ultrasonic wave and cellulase softening finishing technology, the cellulase dosage is 2.0%, the bath ratio is 1:20, the pH value is 6.0, the temperature is 40-50 ℃, and the time is 50min, so that a self-heating layer 2 with a self-heating function is formed, and the self-heating layer is measured according to the mass percentage: the self-heating layer 2 comprises 70% of heating fibers and 30% of cotton;
and 3, step 3: according to the proportion, placing the carbon fibers and the polyester fibers in a needle machine, needling for 120s at the density of 3000 needles/cm 2 and the speed of 150 times/min, and then carrying out high-temperature hot pressing to obtain an intermediate fabric; adding expanded graphite powder into pure water, and performing ultrasonic treatment for 50min to finally form a protective layer 1, wherein the mass percentages are as follows: the protective layer 1 comprises 60% of carbon fiber and 40% of polyester fiber;
and 4, step 4: stacking the self-heating layer 2 and the heat-insulating layer 3 prepared in the step 2 layer by layer, wherein the number of stacked layers is at least 2, placing the stacked fabric between the protective layer 1 and the expansion layer 4, and performing composite molding in a high-temperature hot-pressing mode to obtain a multi-layer composite heating fabric, wherein the high-temperature hot-pressing temperature is 80-100 ℃, the pressure is 10-15Pa, and the time is 40 s;
and 5: and (3) taking the expansion layer 4 as an inner layer, cutting and shaping to form an inner container, filling a down filling material into the inner container, wherein the down filling material is down of duck down or goose down to form each component of the down jacket, and sewing the components to form the thermal down jacket with the self-heating function.
Example 2
In the warm-keeping down jacket with the spontaneous heating function in this embodiment, the steps of the preparation method are the same as those of embodiment 1 except that in step 1, the expansion layer 4 comprises 45% of wool fibers, 27% of acrylic fibers, 23% of expanded graphite, 1% of ascorbic acid and 4% of a binder.
Example 3
In the warm-keeping down jacket with the spontaneous heating function in the embodiment, the steps of the preparation method are the same as those of the embodiment 1 except that in the step 1, the expansion layer 4 comprises 50% of wool fibers, 25% of acrylic fibers, 20% of expanded graphite, 1% of ascorbic acid and 4% of a binder.
Comparative example 1
The preparation method of the warm-keeping down jacket with the spontaneous heating function comprises the following preparation steps:
step 1: the knitting needle arrangement mode is that three groups of dial needles which are alternated in pairs and a cylinder needle which is arranged at intervals of a drawing needle are adopted; knitting wool fibers by a knitting machine according to a knitting needle arrangement mode, and then forming a honeycomb mesh fabric by utilizing high-temperature hot pressing to form an expansion layer 4 with a thermal expansion function, wherein the expansion layer comprises the following components in percentage by mass: the expandable layer 4 comprises 100% wool fibres;
step 2: according to the proportion, sizing is carried out on heating fibers, wherein the heating fibers are ceramic fibers or magnetic fibers, cotton filaments are used as warps and wefts, a rapier loom is adopted for weaving, a double-layer fabric is woven, the fabric is subjected to ultrasonic wave and cellulase softening finishing technology, the cellulase dosage is 2.0%, the bath ratio is 1:20, the pH value is 6.0, the temperature is 40-50 ℃, and the time is 50min, so that a self-heating layer 2 with a self-heating function is formed, and the self-heating layer is measured according to the mass percentage: the self-heating layer 2 comprises 70% of heating fibers and 30% of cotton;
and step 3: according to the proportion, placing the carbon fibers and the polyester fibers in a needle machine, needling for 120s at the density of 3000 needles/cm 2 and the speed of 150 times/min, and then carrying out high-temperature hot pressing to obtain an intermediate fabric; adding expanded graphite powder into pure water, and performing ultrasonic treatment for 50min to finally form a protective layer 1, wherein the mass percentages are as follows: the protective layer 1 comprises 60% of carbon fiber and 40% of polyester fiber;
and 4, step 4: stacking the self-heating layer 2 and the heat-insulating layer 3 prepared in the step 2 layer by layer, wherein the number of stacked layers is at least 2, placing the stacked fabric between the protective layer 1 and the expansion layer 4, and performing composite molding in a high-temperature hot-pressing mode to obtain a multi-layer composite heating fabric, wherein the high-temperature hot-pressing temperature is 80-100 ℃, the pressure is 10-15Pa, and the time is 40 s;
and 5: and (3) taking the expansion layer 4 as an inner layer, cutting and shaping to form an inner container, filling a down filling material into the inner container, wherein the down filling material is down of duck down or goose down to form each component of the down jacket, and sewing the components to form the thermal down jacket with the self-heating function.
Comparative example 2
In the preparation method of the warm-keeping down jacket with the spontaneous heating function, except for the step 1, a knitting needle arrangement mode that two groups of dial needles are arranged alternately in pairs and a cylinder needle is arranged at intervals of one drawing needle is adopted; knitting wool fibers and acrylic fibers by a knitting machine according to a knitting needle arrangement mode, and then forming a rhombic meshed fabric by utilizing high-temperature hot pressing, wherein the rest steps are the same as those in the embodiment 1.
Comparative example 3
In the warm-keeping down jacket with the spontaneous heating function in the comparative example, the steps of the preparation method are the same as those of example 1 except that in step 1, 40ml of anionic surfactant is added into the solvent.
Comparative example 4
In the preparation method of the warm-keeping down jacket with the spontaneous heating function in the comparative example, except for the step 1, the previously washed honeycomb mesh fabric is soaked in the solution for 28min, and the other steps are the same as those in the example 1.
Comparative example 5
In the preparation method of the warm-keeping down jacket with the spontaneous heating function in the comparative example, except for the step 1, the previously washed honeycomb mesh fabric is soaked in the solution for more than 70min, and the other steps are the same as the step 1.
Comparative example 6
The preparation method of the warm-keeping down jacket with the spontaneous heating function in the comparative example is the same as that of example 1 except that in step 1, 40g of riboflavin is added into pure water finally.
Comparative example 7
In the preparation method of the warm-keeping down jacket with the spontaneous heating function in the comparative example, except for the step 1, a sample is taken out and soaked and washed with pure water for 2 times, and the other steps are the same as those in the example 1.
In order to verify the effect of the thermal down jacket with spontaneous heating function prepared in the invention, the following test is adopted to detect the performance of the thermal down jacket.
Heat preservation:
for the fabrics prepared in the examples 1 to 3 and the comparative examples 1 to 7, the fabrics with the same area are taken as experimental fabrics, wherein a YG606 flat-plate type heat retention instrument is adopted, the experimental examples 1 to 3 and the comparative examples 1 to 7 are respectively covered on a sample plate, the sample plate, a floor and a surrounding protection plate are all electrically heated to control the same temperature, a temperature sensor transmits data to a microcomputer to keep the constant temperature for the required time, and the heat preservation rate is calculated; the specific data are as follows:
the above table shows that:
in examples 1 to 3 of the present invention, the measured values of the insulation rates were similar by changing the mass percentages of the wool fibers, acrylic fibers, expanded graphite, and the binder, and the reason for the good insulation effect was that: the expansion layer is synthesized by utilizing the wool fibers, the acrylic fibers, the expanded graphite and the adhesive, the adhesive is utilized to fixedly seal the expanded graphite on the wool fibers and the acrylic fibers, the wool fibers and the acrylic fibers are woven into a honeycomb-shaped porous structure, and the use of the self-heating layer is matched, when the self-heating layer generates heat, the expanded graphite can play an expansion role due to the temperature, the gaps between the wool fibers and the acrylic fibers can be conveniently and quickly reduced, the wool fibers are added to play a role in high heat insulation, the heat of the down jacket can be prevented from being quickly dissipated, meanwhile, the honeycomb-shaped net structure formed by the wool fibers and the acrylic fibers has good memory, and when the down is cleaned, the down can be rubbed in the fabric, so that the down is unevenly distributed, and due to the relative friction between the wool fibers and the acrylic fibers, the cleaned down can be adhered to the wool fibers and the acrylic fibers, after the water is evaporated, the down feather can be uniformly distributed in the inner container, and the down feather is convenient to rapidly expand and has excellent heat retention property.
In comparative example 1, wool fibers are utilized, three groups of dial needles which are arranged alternately in pairs and a knitting needle arrangement mode of cylinder needles which are arranged at intervals of one drawing needle are adopted to manufacture the honeycomb mesh fabric, compared with examples 1-3, acrylic fibers, expanded graphite and an adhesive are removed, only the wool fibers are used as raw materials, and the inner holes are too large, the holes cannot be in a closed state, and heat is easy to lose, so that the measured heat preservation rate value is far lower than that in examples 1-3, and the fabric prepared by the preparation method in comparative example 1 is poor in heat preservation.
In comparative example 2, a diamond mesh fabric was used as the expansion layer, and compared to the honeycomb mesh structure used in examples 1 to 3, which had an expansion effect, the memory was poor, and the adsorption ability to down feather was poor, and heat was easily lost, so that the measured value of the heat retention was much lower than that of examples 1 to 3, and thus the fabric prepared by the preparation method of comparative example 2 had poor heat retention.
In comparative example 3, 40ml of an anionic surfactant was added to the solvent, wherein the degree of binding of the anionic surfactant to the solvent was poor, the adhesion to the honeycomb net fabric was poor, and the strength of the fabric was low, so that the measured value of the heat retention rate was much lower than that of examples 1 to 3, and thus the fabric prepared by the preparation method of comparative example 3 had poor heat retention.
In comparative examples 4 and 5, the soaking time of the fabric is respectively higher than and lower than 40min, the soaking time is too short, when the contact time of the honeycomb mesh fabric and the oxidized expanded graphite aqueous solution is too short, the adhesive force of the oxidized expanded graphite aqueous solution is weakened, therefore, the measured value of the heat preservation rate is lower than that measured in examples 1-3, the fabric prepared by the preparation method in comparative example 4 has poor heat preservation performance, when the contact time of the oxidized expanded graphite aqueous solution and the honeycomb mesh fabric is too long, the oxidized expanded graphite aqueous solution is excessively adhered to the honeycomb mesh fabric, a large amount of oxidized expanded graphite water factors are easily accumulated in honeycomb mesh holes, the adhesive force is improved, the heat expansion degree is low, but the air permeability is poor, and the heat is not easily transferred, therefore, the measured value of the heat preservation rate is lower than that measured in examples 1-3, thus, the fabric prepared by the preparation method in the comparative example 5 has poor heat retaining property.
In comparative example 6, 40g of riboflavin was added to pure water, and the catalytic effect was significantly inferior to that of ascorbic acid compared with ascorbic acid added in examples 1 to 3 as a catalyst, so that the measured purity of the aqueous solution of expanded graphite oxide was low, and therefore, the measured value of the heat retention was much lower than that of examples 1 to 3, and the heat retention of the fabric produced by the production method in comparative example 6 was poor.
In comparative example 7, the number of pure water soaking and washing times was reduced, and the honeycomb mesh fabric was not thoroughly washed, resulting in impurities remaining on the honeycomb mesh fabric, which easily reduced the strength of the fabric for a long time, and therefore, the measured value of the heat-retaining rate was much lower than that of examples 1 to 3, and the fabric prepared by the preparation method in comparative example 7 was poor in heat-retaining property.
According to the data in the above table, the thermal insulation of the down jacket obtained by the method in the experimental example 3 is most balanced, and the reason that the numerical range of the fabrics in the examples 1-3 is better than that of the fabrics in the comparative examples 1-7 and the thermal insulation is good is detected, namely, the expanded graphite is fixedly sealed on the wool fibers and the acrylic fibers by using the adhesive, the wool fibers and the acrylic fibers are woven into a honeycomb-hole-shaped structure, and the self-heating layer 2 is used in cooperation, when the self-heating layer 2 generates heat, the temperature can enable the expanded graphite to play an expansion role, at the moment, the gaps woven between the wool fibers and the acrylic fibers can be conveniently and quickly blocked, the wool fibers are added to play a role in high thermal insulation, so that the heat of the down jacket is prevented from being quickly dissipated, and meanwhile, the honeycomb-mesh structure woven by the wool fibers and the acrylic fibers has good memory, during cleaning, the down feather is rubbed in the fabric, so that the down feather is unevenly distributed, the cleaned down feather is adhered to the wool fibers and the acrylic fibers due to relative friction of the wool fibers and the acrylic fibers, after water is evaporated, the down feather is evenly distributed in the inner container, is convenient to rapidly expand and has excellent heat retention, in the preparation process of the down jacket, the heating fibers and the cotton fibers for synthesizing the self-heating layer 2 play a decisive role in self-heating of the down jacket, particularly, after the cotton fibers and the heating fibers are integrally woven, the self-heating fiber has a good self-heating effect due to the fact that the mass percentage interval of the heating fibers is 60-70%, and the protective layer 1 is composed of carbon fibers and polyester fibers and has good heat insulation performance;
in summary, in the preparation process of the thermal insulation down jacket, when the good thermal insulation is required, and in order to prevent the down feather in the liner from being adhered after cleaning, the wool fibers and the acrylic fibers form a honeycomb net structure, so that the down jacket has certain moisture permeability, and the daily wearing requirements can be met, therefore, the arrangement of the expansion layer 4 greatly increases the filling power of the down feather, can greatly improve the thermal insulation of the finished down jacket, and can ensure that the prepared down jacket has excellent performance.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The utility model provides a thermal type down coat with spontaneous heating function which characterized in that: the down-feather composite heating fabric comprises a composite heating fabric and a down feather filler, wherein a protective layer (1), a self-heating layer (2), a heat preservation layer (3) and an expansion layer (4) are sequentially arranged on the composite heating fabric from outside to inside, and the expansion layer (4) comprises wool fibers, acrylic fibers, expanded graphite, ascorbic acid and an adhesive.
2. A thermal down jacket with spontaneous heating function as claimed in claim 1, wherein: the weight percentage of the material is as follows: the expansion layer (4) comprises 40-50% of wool fibers, 25-30% of acrylic fibers, 20-25% of expanded graphite, 1-10% of ascorbic acid and 4-18% of a binder.
3. A thermal down jacket with spontaneous heating function as claimed in claim 1, wherein: the weight percentage of the material is as follows: the protective layer (1) comprises 60-65% of carbon fiber and 35-40% of polyester fiber.
4. A thermal down jacket with spontaneous heating function as claimed in claim 1, wherein: the weight percentage of the material is as follows: the self-heating layer (2) comprises 60-70% of heating fibers and 30-40% of cotton.
5. A thermal down jacket with spontaneous heating function as claimed in claim 1, wherein: the heat-insulating layer (3) is made of a delinted fabric.
6. A method for preparing the thermal down jacket having the spontaneous heating function according to any one of claims 1 to 5, wherein: the method comprises the following steps:
step 1: the knitting needle arrangement mode is that three groups of dial needles which are alternated in pairs and a cylinder needle which is arranged at intervals of a drawing needle are adopted; knitting wool fibers and acrylic fibers by a knitting machine according to a knitting needle arrangement mode, and then forming a honeycomb mesh fabric by utilizing high-temperature hot pressing;
adding 1-40 ml of cationic surfactant into a solvent, completely dissolving to prepare a solution, soaking a previously washed honeycomb mesh fabric in the solution for 30-60 min, finally adding an adhesive, mixing and standing for 10-20 min, taking out the soaked fabric, washing with pure water, and naturally drying or drying at 40-65 ℃ to obtain a composite honeycomb mesh fabric with positive charges on the surface;
diluting with pure water to obtain an oxidized expanded graphite water solution with the concentration of 0.006-0.7%; placing the composite honeycomb mesh fabric into an oxidized expanded graphite aqueous solution for soaking reaction for 10-50 min, then taking out the composite honeycomb mesh fabric from the solution, soaking and washing the composite honeycomb mesh fabric for more than 5 times by using pure water, and soaking the composite honeycomb mesh fabric in the pure water at 90-100 ℃ for 3-20 min to obtain a composite product;
finally, adding 20-50 g of ascorbic acid into pure water, completely dissolving, immersing the composite product into the solution, reacting at the temperature of 95-100 ℃ for 40-60 min to form a sample, taking out the sample, soaking and washing the sample for more than 3 times by using the pure water, and naturally airing or drying at the temperature of 40-65 ℃ for 12-72 h to form an expansion layer (4) with a thermal expansion function;
step 2: sizing heating fibers according to a proportion, then using cotton filaments as warps and wefts, weaving the warps and the wefts by using a rapier loom to weave a double-layer fabric, and using ultrasonic wave and cellulase softening finishing technology to the fabric, wherein the dosage of the cellulase is 2.0%, the bath ratio is 1:20, the pH value is 6.0, the temperature is 40-50 ℃, and the time is 50min, so that a self-heating layer (2) with a self-heating function is formed;
and step 3: according to the proportion, placing the carbon fibers and the polyester fibers in a needle machine, carrying out needle punching for 60-120s at the density of 2000-3000 needles/cm 2 and the speed of 100-150 times/min, and then carrying out high-temperature hot pressing to obtain an intermediate fabric; adding expanded graphite powder into pure water, and performing ultrasonic treatment for 40-50 min to finally form the protective layer (1);
and 4, step 4: stacking the self-heating layer (2) and the heat-insulating layer (3) prepared in the step (2) layer by layer, wherein the number of stacked layers is at least 2, placing the stacked fabric between the protective layer (1) and the expansion layer (4), and performing composite molding in a high-temperature hot-pressing mode to obtain a multi-layer composite heating fabric;
and 5: and (3) taking the expansion layer (4) as an inner layer of the multilayer composite heating fabric prepared in the step (4), cutting and shaping to form an inner container, filling the down filler into the inner container to form each component of the down jacket, and sewing the components to form the thermal down jacket with the spontaneous heating function.
7. The preparation method of the thermal down jacket with the spontaneous heating function as claimed in claim 6, wherein the thermal down jacket comprises: in the step 2, the heating fiber is ceramic fiber or magnetic fiber.
8. The preparation method of the thermal down jacket with the spontaneous heating function as claimed in claim 6, wherein the thermal down jacket comprises: in the step 4, the temperature of the high-temperature hot pressing is 80-100 ℃, the pressure is 10-15Pa, and the time is 20-40 s.
9. The preparation method of the thermal down jacket with the spontaneous heating function as claimed in claim 6, wherein the thermal down jacket comprises: in the step 5, the down filling material is down of duck down or goose down.
10. The preparation method of the thermal down jacket with the spontaneous heating function as claimed in claim 6, wherein the thermal down jacket comprises: in the step 1, the solvent is any one or a mixture of pure water or ethanol and isopropanol, and the cationic surfactant is any one or a mixture of octadecyl trimethyl ammonium bromide, octadecyl dimethyl amine oxide, tetradecyl dimethyl tertiary amine, tetradecyl trimethyl ammonium bromide, dodecyl dimethyl tertiary amine and dodecyl trimethyl amine bromide.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115157800A (en) * | 2022-07-05 | 2022-10-11 | 高梵(浙江)信息技术有限公司 | Thermal energy reflection type down jacket thermal fabric |
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| CN115157800A (en) * | 2022-07-05 | 2022-10-11 | 高梵(浙江)信息技术有限公司 | Thermal energy reflection type down jacket thermal fabric |
| CN115157800B (en) * | 2022-07-05 | 2023-06-30 | 高梵(浙江)信息技术有限公司 | Thermal energy reflection type down jacket thermal fabric |
| CN115302875A (en) * | 2022-07-19 | 2022-11-08 | 高梵(浙江)信息技术有限公司 | Down-locking type down jacket inner and outer lining fabric and preparation method thereof |
| CN115302875B (en) * | 2022-07-19 | 2023-07-04 | 高梵(浙江)信息技术有限公司 | Down-locked down jacket inner and outer lining fabric and preparation method thereof |
| CN115302876A (en) * | 2022-08-16 | 2022-11-08 | 高梵(浙江)信息技术有限公司 | Down-proof warm-keeping waterproof down jacket fabric and preparation method thereof |
| CN115302876B (en) * | 2022-08-16 | 2023-06-30 | 高梵(浙江)信息技术有限公司 | Anti-penetration down thermal waterproof down jacket fabric and preparation method thereof |
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Application publication date: 20220610 |