CN112776439B - Warm-keeping fabric and underpants - Google Patents
Warm-keeping fabric and underpants Download PDFInfo
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- CN112776439B CN112776439B CN202110154732.6A CN202110154732A CN112776439B CN 112776439 B CN112776439 B CN 112776439B CN 202110154732 A CN202110154732 A CN 202110154732A CN 112776439 B CN112776439 B CN 112776439B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B17/00—Selection of special materials for underwear
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B9/00—Undergarments
- A41B9/001—Underpants or briefs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
- B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The application relates to the field of clothes, in particular to a warm-keeping fabric and underpants, wherein the warm-keeping fabric contains warm-keeping functional fibers, is made of polyester slices, polylactic acid slices, ammonium bicarbonate, polyethylene glycol, a surfactant and other auxiliaries, and is capable of forming an air hole structure in the fibers by gas generated by thermal decomposition of ammonium bicarbonate, so that the warm-keeping fabric is lighter and thinner as a whole while having a better warm-keeping effect. Simultaneously this application relates to an pants, makes through above-mentioned thermal type surface fabric, has better cold-proof effect, and it is also comparatively comfortable to wear simultaneously.
Description
Technical Field
The application relates to the field of clothes, in particular to warm-keeping fabric and underpants.
Background
The warm-keeping fabric is a novel fabric, is commonly used in clothes, and improves the warm-keeping performance of the clothes.
Generally, fibers in the thermal fabric are manufactured by false twisting or false twisting of special-shaped yarns, and the irregular shapes of the surfaces of the special-shaped yarns enable the formed fibers to have certain pores and retain certain air.
When the technical scheme is adopted, in order to ensure the heat-insulating effect of the heat-insulating fabric, more gap structures are required in the fibers, so that the overall thickness of the fabric is larger, and when the fabric is applied to underwear, the fabric generates a larger heavy feeling and is easy to bring discomfort to a wearer.
Disclosure of Invention
In order to make the thermal fabric lighter and thinner, improve the comfort level when the thermal fabric is worn next to the skin, this application provides a thermal fabric and pants.
In a first aspect, the application provides a thermal fabric which adopts the following technical scheme:
the warm-keeping type fabric comprises two outer interlayers and a warm-keeping functional layer arranged between the two outer interlayers, wherein the raw materials of the warm-keeping functional layer comprise warm-keeping functional fibers, and the warm-keeping functional fibers comprise the following raw materials in parts by mass:
200-260 parts of polyester chips;
150-180 parts of polylactic acid slices;
6-20 parts of ammonium bicarbonate;
25-35 parts of polyethylene glycol;
30-60 parts of a surfactant;
0-30 parts of other auxiliary agents;
the thermal functional fiber is obtained by processing the following steps:
s1, mixing, melting and extruding raw materials to form protofilaments;
s2, carrying out air cooling, oiling, stretching, networking, winding, bundling, drafting, false twisting and curling on the raw fibers to obtain the thermal functional fibers.
Firstly, in the technical scheme, the main body of the thermal functional fiber adopts a composite system of the polyester slices and the polylactic acid slices, and the blending of the polyester slices and the polylactic acid slices can ensure that the thermal functional fiber has better overall flexibility and better strength.
The ammonium bicarbonate can be decomposed to generate gas in a heating state, but the generated gas is not easy to be reserved in a melting system in a melting state, so that the surfactant is additionally added in the system and can coat the gas generated in the system, the overall fluidity and uniformity are ensured, and the gas reserving rate is also improved.
Meanwhile, a certain amount of polyethylene glycol is added, so that on one hand, the fluidity of the whole system in a molten state can be improved, the distribution is more uniform, and meanwhile, the surfactant can be positioned, and the retention rate of gas is further improved.
Through the technical scheme, the thermal functional fiber can generate the internal gas cavity in the processing process, the air is a hot poor conductor, so that the thermal effect can be realized through the internal gas cavity, and the adopted protofilament contains the cavity structure, so that the thickness required by the same thermal effect is smaller, and the thermal functional fiber is suitable for manufacturing next-to-skin clothes.
Preferably, the raw materials of the thermal functional fiber also comprise 15-20 parts by mass of carbon nano tubes, and the surface of the carbon nano fiber is modified by carboxyl.
The surface of the carbon nano tube can adsorb ammonia gas generated by decomposing ammonium bicarbonate through carboxyl modification, so that peculiar smell generated by ammonia gas overflow is reduced, and meanwhile, the carbon nano tube has good strength and is beneficial to improving the strength of the fiber with the warm-keeping function.
Preferably, the raw material of the thermal functional fiber also comprises 7-10 parts by mass of nano titanium oxide.
In the technical scheme, the nano titanium oxide has a certain far infrared effect, when the fabric is used for manufacturing close-fitting clothes, the blood flow of the skin on the surface of a human body can be stimulated to accelerate, a certain warm feeling is achieved, and meanwhile the nano titanium oxide is also beneficial to improving the weather resistance of the warm-keeping functional layer.
Preferably, the other auxiliary agents comprise the following components in parts by mass:
17-22 parts of chitosan;
5-10 parts of cellulose nanocrystals.
In the technical scheme, the chitosan and the cellulose nanocrystalline are viscous substances, and the surfaces of the chitosan and the cellulose nanocrystalline have more active groups, so that the cohesive force of a melting system can be improved, on one hand, the strength of the thermal fibers is improved, and meanwhile, the formation of a cross-linked structure is facilitated, so that the overall strength of the thermal functional layer is improved, and simultaneously, the overall strength of the thermal functional layer is also improved
Preferably, the other auxiliary agents also comprise 1-3 parts by mass of sodium polyacrylate grafted starch.
The sodium polyacrylate grafted starch has strong water absorption capacity, can absorb a small amount of water generated by decomposition of ammonium carbonate, protects polylactic acid from being easily broken or denatured due to the existence of the small amount of water in the drying process, further improves the strength of the heat-insulating functional layer, and is not easily broken or folded.
In addition, the carboxyl modified carbon nano tube can be adsorbed on the sodium polyacrylate grafted starch through the polarity of carboxyl, and meanwhile, the carboxyl and hydroxyl on the surface of chitosan can be subjected to esterification reaction in a heating state, so that the strength of the thermal functional fiber is further improved, and the thermal fabric has better strength and is not easy to damage in a relatively light and thin state.
Preferably, the surfactant is a cationic surfactant.
In the technical scheme, the cationic surfactant can be partially adsorbed on the surface of the carboxyl modified carbon nano tube, so that the carbon nano tube has better compatibility with other substances in a system, the uniformity of a melting system is further improved, and the strength of the thermal functional fiber is improved.
Preferably, in the step S1, the raw filament is formed by extrusion through a screw extruder, the screw extruder is sequentially provided with a first heating section, a first constant temperature section, a second heating section, a second constant temperature section, a third heating section and a third constant temperature section from a feeding end to a discharging end, the temperatures of the first constant temperature section, the second constant temperature section and the third constant temperature section are 224-226 ℃, 263-265 ℃ and 270-272 ℃, the length ratio of the first constant temperature section, the second constant temperature section and the third constant temperature section is 1 (0.6-0.7) (0.2-0.3), and the temperature of an extrusion head is 275-280 ℃.
Through adopting the mode of segmentation extrusion to set up the extrusion temperature that rises in proper order, polylactic acid section and dacron section can form better crystalline state in heating process, make the precursor after extruding have better intensity and pliability after the condensation, and polylactic acid and polyester system global distribution be more even, and the crystalline state is better, has better intensity.
Preferably, an adhesive layer is arranged between the outer interlayer and the warm-keeping functional layer, and raw materials of the adhesive layer comprise the following components in percentage by mass:
28-32% of polyacrylic resin emulsion;
2.0 to 2.4 percent of hollow glass beads;
0.2 to 0.3 percent of silane coupling agent;
2 to 7 percent of emulsifier;
the balance of water;
the mass of the adhesive layer is 75-85 g/m corresponding to each square meter of the fabric 2 。
The hollow glass beads are added into the adhesive layer, and silane coupling agents are used, so that on one hand, more cavities are formed inside the hollow glass beads, glass is a poor heat conductor, a good heat insulation effect can be achieved, meanwhile, certain gaps can be formed between the heat insulation functional layer and the outer interlayer through the hollow glass beads, the overall air permeability of the fabric can be improved through the gaps, meanwhile, the direction of the gaps jacked up by the hollow glass beads is close to the direction parallel to the plane of the heat insulation functional layer, the air circulation of the fabric hardly influences the heat insulation performance of the heat insulation functional layer, and the air permeability of the fabric can be improved while the heat insulation performance is guaranteed. In addition, the addition of the silane coupling agent can improve the adhesion effect of the adhesive layer, and further improve the adhesion
Preferably, the outer interlayer and the thermal functional layer are compounded by the following method: firstly coating adhesive layers on two sides of the heat-insulating functional layer, then respectively bonding the outer interlayers to two sides of the heat-insulating functional layer, heating and drying at 1.6-2.0 standard atmospheric pressure at 120-130 ℃ for 50-100 s, and after drying, pressing the dried composite fabric layer by a hot press roller at 2-2.2 t and 250-260 ℃.
According to the technical scheme, the thermal drying treatment is carried out under the pressurization condition, so that the damage of the pore structure in the thermal functional fiber in the thermal functional layer under the low-pressure state can be reduced, and the finally prepared thermal fabric has a better thermal effect.
In a second aspect, the present application provides an underpants, which adopts the following technical scheme:
an undergarment comprising a main body portion made of a thermal type fabric as claimed in any one of claims 1 to 9 and a crotch outer layer which is a pure cotton cloth, the outer layer being napped on the side remote from the other outer layer, the outer layer having a napped height of 0.2 to 0.3mm. Through above-mentioned cold-proof type surface fabric preparation pants, because this cold-proof type surface fabric is whole frivolous, has less thickness under keeping similar cold-proof effect, also has better compliance and better iron and performance simultaneously, through setting up fine hair, has further improved the surperficial comfort level of cold-proof type surface fabric and cold-proof effect simultaneously.
In summary, the present application has the following beneficial effects:
1. in the application, ammonium bicarbonate and a surfactant are added into polyester slices and polylactic acid slices, the ammonium bicarbonate is decomposed by heating to generate bubbles, and gas is retained in a system through the surfactant, so that the prepared thermal functional fiber has a certain pore structure, and therefore the thermal functional layer prepared from the thermal functional fiber and the prepared thermal fabric have a better thermal effect under the same thickness.
2. In the further arrangement of the application, the chitosan and the cellulose nanocrystals are arranged as other auxiliary agents, so that the overall fiber strength is improved, the generated gas can be better reserved in the thermal functional fiber, and the strength of the thermal functional fiber and the thermal effect of the prepared thermal fabric are improved.
3. In the further arrangement of the application, the hollow glass beads are arranged in the adhesive layer between the outer interlayer and the warm-keeping functional layer, the adhesive capacity of the hollow glass beads is strengthened by using the silane coupling agent, and the warm-keeping effect and the overall strength of the warm-keeping fabric are further improved.
Detailed Description
The present application will be described in further detail with reference to examples.
In the following examples and comparative examples, the sources and model specifications of some of the raw materials are shown in Table 1.
TABLE 1 raw material sources and model specification table
| Raw materials | Source/model/Specification |
| Polyester chip | Common fiber drawing grade Dacron slice, shenzhen Shenli Special new materials science and technology Co Ltd |
| Polylactic acid slice | Nature Works, USA |
| Chitosan | Sigma Aldrich trade company |
| Cellulose nanocrystals | Diameter: 3-10 nm, 1000-3000 nm in length, beijing Qi scientific and research center Limited |
| Polysodium polyacrylate grafted starch | Beijing Lingbao science and technology Co Ltd |
| Carbon nanotube | Multi-wall carbon nano-tube, inner diameter 5-8 nm, outer diameter 7-10 nm, length 100-300 μm, beijing Deke lead science and technology Limited |
| Nano titanium oxide | Dupont R-902 |
| Silane coupling agent | HK-550 |
| Hollow glass bead | Middling group Maanshan institute New Material science and technology Limited, 200 mesh |
| Polyacrylic resin emulsion | 50 percent of water-based polyacrylic resin, and Valbond 8020 |
In addition, the carbon nanotubes are carboxyl-modified by the following method: adding carbon nanotubes into mixed acid according to the ratio of 1.
Preparation examples 1 to 15
The preparation raw materials of the thermal functional fiber are shown in table 2.
The thermal functional fiber is prepared by the following steps:
s1, mixing the raw materials shown in Table 2, and carrying out melt extrusion through a screw extruder, wherein the screw extruder comprises a first heating section, a first constant temperature section, a second heating section, a second constant temperature section, a third heating section and a third constant temperature section, the temperatures of the first constant temperature section, the second constant temperature section and the third constant temperature section are 224 ℃, 263 ℃ and 270 ℃ in sequence, the length ratio of the first constant temperature section to the second constant temperature section to the third constant temperature section is 1.6: 0.3, the temperature of an extrusion head is 280 ℃, and the precursor fiber is obtained after extrusion.
S2, carrying out air cooling, oiling, stretching, networking, winding, bundling, drafting, false twisting and curling on the raw fibers to obtain the thermal functional fibers.
TABLE 2 ingredient formulation tables of the fibers having warming function in preparation examples 1 to 15
In the above preparation examples, the surfactant was octadecyl alcohol polyoxyethylene ether dimethyl dodecyl ammonium bromide, and the carbon nanotubes were carboxyl group-modified carbon nanotubes.
Preparation example 20
The thermal functional fiber is different from the fiber prepared in preparation example 14 in that the carbon nanotubes are unmodified carbon nanotubes.
Preparation example 21
The difference between the thermal functional fiber and the preparation example 14 is that the surfactant is a nonionic surfactant, and specifically tween-60 is selected.
Preparation example 22
The difference between the thermal functional fiber and the preparation example 14 is that the surfactant is an anionic surfactant, and sodium dodecyl sulfate is specifically selected.
Preparation example 23
The difference between the thermal functional fiber and the preparation example 14 is that in step S1, the temperatures of the first constant temperature section, the second constant temperature section and the third constant temperature section are 226 ℃, 265 ℃ and 272 ℃ in sequence, the length ratio of the first constant temperature section, the second constant temperature section and the third constant temperature section is 1.
On the basis of the preparation example, the thermal functional fiber is further processed into a thermal functional layer, and finally the thermal fabric is obtained.
Examples 1 to 14
A warm-keeping fabric comprises a warm-keeping functional layer and outer interlayers arranged on two sides of the warm-keeping functional layer, wherein the full-warm functional layer is formed by knitting warm-keeping functional fibers in preparation examples 1-10.
An adhesive layer is arranged between the outer interlayer and the warm functional layer, and the adhesive layer is uniformly mixed and fully stirred by the raw materials shown in the table 3And (4) obtaining the product. The adhesive layers are coated on both sides of the heat-insulating functional layer, and the coating amount is 75g/m 2 . And after coating, attaching the outer interlayer to two sides of the heat-insulating functional layer, drying at 120 ℃ and normal pressure for 100s, and performing hot-pressing attachment at the pressure of 2.2t and the temperature of 250 ℃ by using a hot-pressing roller to obtain the heat-insulating fabric.
Examples 15 to 18
The difference between the warm-keeping fabric and the embodiment 1 is that the warm-keeping functional fibers obtained in the preparation examples 20-23 are respectively selected as the warm-keeping functional fibers.
Comparative examples 1 to 5
A thermal fabric, which is different from the fabric in example 1 in that the thermal functional fibers obtained in preparation examples 15 to 19 are respectively selected as the thermal functional fibers.
Examples 19 to 23
A thermal fabric differing from example 14 in that the adhesive layer had the raw material composition shown in table 3.
Table 3, examples 1 to 18 and examples 19 to 23 show the raw material composition of the adhesive layer
| Ingredients (% by mass) | Examples 1 to 18 | Example 19 | Example 20 | Example 21 | Example 22 | Example 23 |
| Polyacrylic resin emulsion | 28 | 30 | 32 | 30 | 30 | 30 |
| Hollow glass bead | 2 | 2.2 | 2.4 | 0 | 2.2 | 2.2 |
| Silane coupling agent | 0.2 | 0.3 | 0.3 | 0 | 0 | 0.3 |
| Emulsifier | 2 | 4 | 7 | 4 | 4 | 0 |
| Water (W) | Allowance of | Balance of | Balance of | Allowance of | Balance of | Balance of |
In examples 1 to 23 and comparative examples 1 to 5, the selected emulsifier is a compound system formed by magnesium stearate and stearic acid in a mass ratio of 5.
Example 24
A thermal fabric, which is different from embodiment 14 in that after an adhesive layer is coated on both sides of a thermal functional layer, sandwich layers are bonded on both sides of the thermal functional layer, pressure is applied to keep the system at 1.6 standard atmospheric pressures, heating and drying are carried out for 50s at the temperature of 120 ℃, and then a dried composite fabric layer is pressed under a hot press roller, the pressure of the hot press roller is 2t, and the hot press temperature is 250 ℃.
Example 25
A thermal fabric, which is different from embodiment 24 in that after an adhesive layer is coated on both sides of a thermal functional layer, a sandwich layer is bonded on both sides of the thermal functional layer, pressure is applied to keep the system at 2.0 standard atmospheric pressure, heating and drying are carried out for 100s at the temperature of 130 ℃, and then a dried composite fabric layer is pressed under a hot press roller, the pressure of the hot press roller is 2.2t, and the hot press temperature is 260 ℃.
Comparative examples 6 to 7 were provided and compared with the above examples.
Comparative example 6
The fabric A is formed by blending wool fibers, silk fibers, camel hair fibers, cow hair fibers and cotton and hemp fibers, wherein the wool fibers account for 30% of the thermal fabric by weight, the silk fibers account for 20% of the thermal fabric by weight, the camel hair fibers account for 18% of the thermal fabric by weight, the cow hair fibers account for 20% of the thermal fabric by weight, and the cotton and hemp fibers account for 12% of the thermal fabric by weight.
Comparative example 7
The fabric B is different from the fabric B in example 1 in that the thermal functional layer is formed by weaving thermal fibers B, and the thermal fibers B are prepared from the following raw materials in parts by weight: 100 parts of polyethylene terephthalate, 5 parts of antistatic agent, 4 parts of smoothing agent, 20 parts of polyvinyl alcohol and 100 parts of organic solvent; the antistatic agent is fatty glyceride; the smoothing agent is white oil; the organic solvent is N, N-dimethylformamide; the molecular weight of polyvinyl alcohol is 25000, polyethylene glycol terephthalate and an organic solvent are mixed and dissolved, and are stirred and dissolved with strong force at 100 ℃, the stirring time is 600 minutes, and a spinning solution A is prepared; adding an antistatic agent, a smoothing agent and polyvinyl alcohol into the spinning solution A, and strongly stirring for 10 minutes at 90 ℃ to prepare a spinning solution; conveying the spinning solution to a spinning machine, extruding the spinning solution through a spinning nozzle, and forming in a coagulating bath to obtain the thermal fiber filaments; the thermal fiber is cleaned and cooled by hot water at 95 ℃ at the speed of 3m/min, and then the thermal fiber is prepared after the processes of normal warm water bath and oiling.
With respect to the above examples, the following experiments were performed to measure the properties of the above thermal fabrics.
Experiment 1, the thickness of the fabric is measured according to the national standard GBT 3820-1997-measurement of the thickness of the textile and the textile product, and meanwhile, the gram weight of the fabric per unit area is measured by a weighing method.
Experiment 2, according to the national standard GBT11048-1989 textile thermal insulation performance test method, the Crohn value of the fabric is measured.
Experiment 3, referring to the national standard GB/T19975-2005 high tenacity fiber filament tensile property test method, the tensile strength of the thermal insulation functional fiber used in the examples or the comparative examples is measured.
First, experiments 1 and 2 were performed for examples 1 to 4 and comparative examples 1 to 7, and the results are shown in table 4.
Table 4, comparative examples 1 to 4 and comparative examples 1 to 7 show the heat retention effect and thickness
| Numbering | Fabric thickness (mm) | Grammage (g/m) of fabric 2 ） | Crohn value (clo) |
| Example 1 | 0.54 | 135 | 0.180 |
| Example 2 | 0.55 | 137 | 0.191 |
| Example 3 | 0.54 | 135 | 0.190 |
| Example 4 | 0.54 | 136 | 0.182 |
| Comparative example 1 | 0.53 | 192 | 0.065 |
| Comparative example 2 | 0.54 | 188 | 0.066 |
| Comparative example 3 | 0.55 | 203 | 0.041 |
| Comparative example 4 | 0.54 | 144 | 0.072 |
| Comparative example 5 | 0.54 | 128 | 0.079 |
| Comparative example 6 | 0.91 | 220 | 0.189 |
| Comparative example 7 | 0.55 | 168 | 0.080 |
According to the experimental data, the thermal fabric prepared by the method is higher in the clo value, and is smaller in thickness under the condition that the thermal effect is close to that of comparative example 6, and has a better thermal effect under the condition that the thickness is close to that of comparative example 7, so that the thermal effect is achieved, the light and thin touch is guaranteed, and the thermal fabric is suitable for manufacturing underwear.
In comparative example 3, ammonium bicarbonate is absent, a pore structure cannot be formed, and therefore, no warm-keeping effect is obtained, while in comparative example 1, surfactant is absent, generated bubbles are easy to escape and are not easy to remain in a system, and the porosity of the warm-keeping functional fiber is caused
Due to the adoption of similar processes, the thickness and the gram weight of the obtained thermal fabric are relatively close in examples 1 to 25, and the following processes are not listed.
Further, experiments 2 and 3 were carried out for examples 5 to 18, and compared with example 3, and the results are shown in table 5.
Table 5, examples 5 to 16 and example 3
| Numbering | Crohn value (clo) | Breaking strength of warm functional fiber (cn/dtex) |
| Example 3 | 0.190 | 1.48 |
| Example 5 | 0.184 | 1.92 |
| Example 6 | 0.182 | 1.91 |
| Example 7 | 0.201 | 1.87 |
| Example 8 | 0.200 | 1.87 |
| Example 9 | 0.211 | 1.96 |
| Example 10 | 0.213 | 1.98 |
| Example 11 | 0.203 | 1.90 |
| Example 12 | 0.205 | 1.91 |
| Example 13 | 0.214 | 2.05 |
| Example 14 | 0.213 | 2.05 |
| Example 15 | 0.199 | 1.72 |
| Example 16 | 0.199 | 1.89 |
| Example 17 | 0.204 | 1.96 |
| Example 18 | 0.214 | 2.03 |
According to the data, the components of the thermal functional fiber are further adjusted, and the properties of the thermal functional fiber in all aspects can be improved. In example 5 and example 6, the carbon nanotubes modified by carboxyl groups are further added, so that the strength of the thermal functional fiber can be greatly improved by the strength of the carbon nanotubes, and the carboxyl groups on the surface of the carbon nanotubes can improve the coupling performance on the surface of the carbon nanotubes, improve the strength of the thermal functional fiber, and absorb ammonia gas generated by thermal decomposition of the generated sodium bicarbonate, so that the prepared thermal fabric has no peculiar smell. When the carbon nano tube which is not modified by carboxyl is used, peculiar smell is easily caused, and the strength is also influenced.
The chitosan and the cellulose nanocrystalline are further added, and the viscosity of the chitosan and the cellulose nanocrystalline is favorable for forming a frame network structure in a system, so that gas is better reserved in the system, the integral strength is improved, and the heat-insulating function of the heat-insulating fabric is also improved. Removal of any of these results in the loss of the above effect. In addition, the sodium polyacrylate grafted starch is additionally added, so that a small amount of water in a system can be absorbed, the polylactic acid fiber is ensured not to be easily denatured, and the whole polylactic acid fiber is improved through the crosslinking performance of the polylactic acid fiber
In addition, the cationic surfactant is selected, so that the strength of the warm-keeping functional fiber and the warm-keeping effect of the warm-keeping fabric can be better improved compared with an anionic surfactant and a nonionic surfactant.
Further, experiment 2 was carried out for examples 19 to 25, and the results are shown in table 6.
Comparison of the test results in Table 6 and examples 19 to 25
| Numbering | Crohn value (clo) |
| Example 14 | 0.213 |
| Example 19 | 0.214 |
| Example 20 | 0.214 |
| Example 21 | 0.205 |
| Example 22 | 0.210 |
| Example 23 | 0.207 |
| Example 24 | 0.221 |
| Example 25 | 0.219 |
In examples 19 to 23, the components of the adhesive layer were adjusted, and the heat retention effect of the heat retention fabric could be further improved by adding hollow glass beads to the adhesive layer. The addition of the silane coupling agent contributes to improvement of the adhesive strength between the heat-insulating functional layer and the front under fabric layer, although the effect of warm retention is not greatly affected. Meanwhile, the emulsifier helps to disperse all components more uniformly, the dispersibility of the hollow glass beads is further improved, and the heat preservation effect can be better provided under the condition of uniform dispersion. In examples 24 and 25, a larger air pressure is further applied in the drying process, so that the pore structure can be completely retained in the drying process, thereby improving the heat preservation effect of the heat preservation type fabric.
Further, the following examples were provided.
Examples 27 to 32
An underwear comprises a main body part and a crotch outer layer, wherein the main body part is respectively made of warm keeping fabrics in embodiment 3, embodiment 5, embodiment 7, embodiment 9, embodiment 14 and embodiment 24, the crotch outer layer is made of pure cotton cloth, one side of an outer interlayer of the warm keeping fabric, which is far away from the other outer interlayer, is napped, and the napped height is 0.2-0.3 mm.
Comparative examples 8 to 9
An underpants different from example 27 in that a main body portion was made of the warm-type fabrics of production example 6 and production example 7, respectively.
Comparative example 10
An undergarment which differed from example 27 in that the outer layer surface was not napped.
The following experiments were carried out for examples 27 to 32 and comparative examples 8 to 10.
Experiment 4: the wearing experience is as follows: for examples 27 to 32 and comparative examples 8 to 10, 20 volunteers were selected for each sample, and the wearing test was carried out and the volunteers were scored according to the criteria shown in Table 7.
TABLE 7 Scoring standards
| Score value | Warm keepingSexual score | Comfort scoring |
| 0～2 | Poor warm-keeping effect and no warm feeling | Severe discomfort, strong friction when in contact with the skin |
| 3～5 | Comfortable wearing and general warm keeping effect | The whole body is cross in softness and has certain friction feeling when contacting with the skin |
| 6～8 | Has better warm-keeping effect when worn | The surface is more flexible and has a little heavy or uncomfortable feeling |
| 9～10 | Has excellent warm keeping effect and warm feeling when being worn | Soft and comfortable, convenient to move and free from discomfort |
The results of experiments 4 of examples 27 to 32 and comparative examples 8 to 10 are shown in Table 8.
Comparison of the test results in Table 8, examples 27 to 32 and comparative examples 8 to 10
| Numbering | Heat retention rating | Comfort scoring |
| Example 27 | 7.00 | 7.35 |
| Example 28 | 7.10 | 7.40 |
| Example 29 | 7.35 | 7.55 |
| Example 30 | 7.80 | 7.80 |
| Example 31 | 8.15 | 8.40 |
| Example 32 | 8.30 | 8.60 |
| Comparative example 8 | 7.05 | 4.40 |
| Comparative example 9 | 5.20 | 7.40 |
| Comparative example 10 | 6.55 | 6.25 |
From the above data, it can be seen that the underpants produced in examples 27 to 32 have a good thermal insulation effect and a good comfort level.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The warm-keeping type fabric is characterized by comprising two outer interlayers and a warm-keeping functional layer arranged between the two outer interlayers, wherein raw materials of the warm-keeping functional layer comprise warm-keeping functional fibers, and the warm-keeping functional fibers comprise the following raw materials in parts by mass:
200-260 parts of polyester chips;
150-180 parts of polylactic acid slices;
6-20 parts of ammonium bicarbonate;
25-35 parts of polyethylene glycol;
30-60 parts of a surfactant;
0-30 parts of other auxiliary agents;
the thermal functional fiber is obtained by processing the following steps:
s1, mixing, melting and extruding raw materials to form protofilaments;
s2, carrying out air cooling, oiling, stretching, networking, winding, bundling, drafting, false twisting and curling on the raw fibers to obtain the thermal functional fibers.
2. The warm-keeping fabric according to claim 1, wherein the raw material of the warm-keeping functional fiber further comprises 15-20 parts by mass of carbon nanotubes, and the surfaces of the carbon nanotubes are modified by carboxyl groups.
3. A warm-keeping fabric as claimed in claim 2, wherein the raw material of the warm-keeping functional fiber further comprises 7-10 parts by mass of nano titanium oxide.
4. The warm-keeping fabric as claimed in claim 3, wherein the other auxiliaries include the following components in parts by mass:
17-22 parts of chitosan;
5-10 parts of cellulose nanocrystals.
5. The warm-keeping fabric as claimed in claim 4, wherein the other auxiliary agents further comprise 1-3 parts by mass of sodium polyacrylate grafted starch.
6. A thermal fabric as claimed in claim 2, wherein the surfactant is a cationic surfactant.
7. The warm-keeping type fabric according to any one of claims 1 to 6, wherein in the step S1, the raw filament is formed by extrusion through a screw extruder, the screw extruder is provided with a first heating section, a first constant temperature section, a second heating section, a second constant temperature section, a third heating section and a third constant temperature section in sequence from a feeding end to a discharging end, the temperatures of the first constant temperature section, the second constant temperature section and the third constant temperature section are 224-226 ℃, 263-265 ℃ and 270-272 ℃ in sequence, the length ratio of the first constant temperature section, the second constant temperature section and the third constant temperature section is 1 (0.6-0.7): (0.2-0.3), and the temperature of an extrusion head is 275-280 ℃.
8. The warm-keeping type fabric according to any one of claims 1 to 6, wherein an adhesive layer is arranged between the outer interlayer and the warm-keeping functional layer, and raw materials of the adhesive layer comprise the following components in percentage by mass:
28-32% of polyacrylic resin emulsion;
2.0 to 2.4 percent of hollow glass beads;
0.2 to 0.3 percent of silane coupling agent;
2 to 7 percent of emulsifier;
the balance of water;
the mass of the adhesive layer is 75-85 g/m corresponding to each square meter of the fabric 2 。
9. The thermal fabric according to claim 8, wherein the outer interlayer and the thermal functional layer are compounded by: firstly coating adhesive layers on two sides of the warm-keeping functional layer, then respectively pasting the outer interlayers on two sides of the warm-keeping functional layer, heating and drying at 1.6-2.0 standard atmospheric pressure at 120-130 ℃ for 50-100 s, and after drying, pressing the dried composite fabric layer by a hot-pressing roller at 2-2.2 t and 250-260 ℃.
10. An undergarment comprising a main body portion made of a thermal type fabric as claimed in any one of claims 1 to 9 and a crotch portion outer layer which is made of pure cotton cloth, the outer layer being napped on the side remote from the other outer layer, the outer layer having a napped height of 0.2 to 0.3mm.
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| US20090286059A1 (en) * | 2006-07-03 | 2009-11-19 | Nagoya Oil Chemical Co., Ltd. | Fiber sheet |
| JP2011084855A (en) * | 2009-09-15 | 2011-04-28 | Nagoya Oil Chem Co Ltd | Heat adhesive nonwoven fabric, sound absorption fiber sheet, and sound absorption material |
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