CN212171621U - Moisture absorption deformation fabric and preparation device thereof - Google Patents
Moisture absorption deformation fabric and preparation device thereof Download PDFInfo
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- CN212171621U CN212171621U CN201922108645.8U CN201922108645U CN212171621U CN 212171621 U CN212171621 U CN 212171621U CN 201922108645 U CN201922108645 U CN 201922108645U CN 212171621 U CN212171621 U CN 212171621U
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Abstract
The utility model discloses a moisture absorption deformation surface fabric and preparation facilities thereof. The moisture absorption deformation fabric comprises a substrate layer and a moisture absorption expansion layer attached to the surface of the substrate layer, wherein the moisture absorption expansion layer comprises a solid part and a hollow part. The preparation facilities of this surface fabric includes the hot plate, along scraper, embossing roll and the surface fabric transmission roller of the long limit extension of hot plate, and the limit that the hot plate was equipped with the scraper is close to the embossing roll, and the axle of surface fabric transmission roller is parallel with the axle of embossing roll, and the surface fabric transmits between surface fabric transmission roller and embossing roll. After the fabric absorbs moisture, the positions printed with the flower-shaped patterns absorb moisture and expand to form bulges, and the parts contacting with the body are concave and convex, so that the fabric is not easy to adhere, and the dry feeling is kept. In addition, the fabric has high washing fastness, and the moisture absorption expansion deformation effect still exists after washing for many times, so that the fabric has better durability. The fabric preparation device can be simply transformed on the basis of the existing gravure printing equipment, and is simple, feasible, low in cost and wide in applicable fabric material and organizational structure range.
Description
Technical Field
The utility model relates to a surface fabric and preparation technique especially relate to a moisture absorption deformation surface fabric and preparation facilities thereof.
Background
With the concept of sports and the increasing attention on sports in various countries, people have higher and higher requirements on sports clothes, the technological investment in the aspect of sports clothes is also larger and larger, the development of novel textile materials and textile technology and the continuous presentation of functional fabrics promote the development of functional sports clothes, such as moisture absorption and sweat releasing, quick drying and cool feeling, water resistance, wind resistance, moisture permeability, antibiosis, antistatic property, warm keeping and ventilation, stretch resistance and the like. Among them, the most important problem during physical exercise is the management of sweat. If the air permeability of the clothes can be adjusted according to the change of the internal environment of the clothes, namely the change of humidity during the movement of a person, the clothes provide more excellent heat and humidity comfort for the sportsman.
For the function of adjusting the air permeability and comfort of the garment according to the change of the internal environment of the garment, i.e., humidity, there are some products on the market, such as "MRT fiber" developed by the japanese emperor and "Ventcool" developed by mitsubishi corporation of japan. The MRT fiber of the imperial is polyester and polyamide bicomponent fiber, and the yarns are bent due to different expansion and extension degrees of the yarns after moisture absorption due to different shrinkage rates of the two components, so that gaps among the yarns are increased, the air permeability of the fabric is improved, and hot and humid air inside the garment is released; the yarns shrink and the air permeability decreases when dry, thereby providing the heat and moisture comfort of the garment when in motion. The dynamic fiber Ventcool is prepared by adopting a unique fiber modification technology and a composite spinning technology and carrying out composite spinning on strong-hydrophilicity modified diacetate fibers and weak-hydrophilicity triacetate fibers. During drying, the modified diacetate fibers volatilize and shrink, so that the length between the two acetate fibers appears, and the fibers form spiral curls. When the fabric absorbs moisture and is wet, the modified diacetate fibers absorb moisture, swell and stretch, and the air permeability of the fabric is increased. However, the production processes of these two types of yarns are complicated and costly. Therefore, a simple and feasible preparation device is needed to realize the fabric which can adjust the air permeability and the comfort of the garment according to the change of the internal environment of the garment, namely the humidity so as to meet the market demand.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a moisture absorption deformation surface fabric and preparation facilities thereof, moisture absorption deformation surface fabric can be according to clothing internal environment humidity change promptly and adjust clothing gas permeability and travelling comfort, and the preparation facilities simple structure of moisture absorption deformation surface fabric is feasible.
In order to solve the technical problem, the utility model adopts the following technical scheme:
on the one hand, the present disclosure provides a moisture absorption deformation fabric. The moisture absorption deformation fabric comprises a base layer and a moisture absorption expansion layer attached to the surface of the base layer, wherein the moisture absorption expansion layer comprises a solid part and a hollow part.
Optionally, for the hygroscopic deformation fabric, the raw material of the hygroscopic expansion layer comprises a polyurethane material.
Optionally, for the hygroscopic deforming fabric, the polyurethane material comprises diphenylmethane diisocyanate-based polyether urethane.
Optionally, for the hygroscopic deformation fabric, the raw material of the hygroscopic expansion layer further comprises at least one of a crosslinking curing agent, an antioxidant, a stabilizer and a lubricant.
Optionally, for the hygroscopic deformation fabric, at least part of the hygroscopic expansion layer is in a dot, linear or grid pattern.
Optionally, for the moisture absorption deformation fabric, the material of the substrate layer includes at least one material of knitted fabrics and woven fabrics of polyester, nylon, polyester-polyurethane, nylon-polyurethane, and all-cotton fabrics.
On the other hand, the present disclosure provides a device for preparing a moisture absorption deformation fabric. The preparation facilities of moisture absorption deformation surface fabric includes the hot plate, follows scraper, embossing roll and the surface fabric transmission roller that the long limit of hot plate extends, and the limit that the scraper was installed to the hot plate is close to the embossing roll, and the axle of surface fabric transmission roller is parallel with the axle of embossing roll, and the surface fabric transmits between surface fabric transmission roller and embossing roll.
Optionally, for the device for preparing the moisture absorption deformation fabric, the pattern of the printing roll comprises at least one pattern of dot, line and grid patterns.
Compared with the prior art, the utility model discloses the main advantage of technical scheme as follows:
according to the moisture absorption deformation fabric disclosed by the embodiment of the disclosure, when the fabric absorbs moisture, the fabric printed with the pattern is subjected to moisture absorption expansion and is protruded, and the part contacting with a body is concave-convex, so that the fabric is not easy to adhere, and the dry and comfortable feeling is kept. Meanwhile, compared with the non-printed fabric, the printed fabric is stretched due to moisture absorption and expansion of the moisture absorption and expansion layer, the length of the yarn breathable pipeline is possibly reduced, gaps among yarns are increased, the fabric breathability is increased, moist and hot air in the garment can be released, and the heat and moisture comfort of the garment is improved; after the fabric is dried and the moisture is volatilized, the fabric is recovered. The fabric selection range of the substrate layer is wide, and fabrics made of different materials and fabrics with different weave structures are applicable and have better universality. In addition, the moisture absorption deformation fabric disclosed by the embodiment of the disclosure is high in washing fastness, and after washing for many times, the moisture absorption expansion deformation effect still exists, so that the fabric has better durability. The preparation facilities of moisture absorption deformation surface fabric of this disclosed embodiment only need on the basis of current gravure printing equipment go on simply reform transform can, simple feasible, with low costs, be suitable for surface fabric material and organizational structure wide range, satisfy the demand in market more easily.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a device for preparing a moisture absorption deformation fabric according to another embodiment of the present invention;
FIG. 2 is a working flow chart of a device for preparing the hygroscopic deformation fabric shown in FIG. 1;
FIG. 3 is a schematic representation of the change before and after water absorption of a long hexagonal printed polyurethane fabric provided as an example;
FIG. 4 is a schematic diagram of the change of a diamond-shaped printed polyurethane fabric before and after water absorption according to an example;
FIG. 5 is a schematic representation of the change before and after water absorption of a snowflake printed polyurethane fabric provided by an example;
FIG. 6 is a schematic representation of the change before and after water absorption of a linear hexagonal printed polyurethane fabric provided as an example.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The utility model discloses a moisture absorption deformation surface fabric that embodiment provided includes the stratum basale and attaches to the moisture absorption expanded layer on the surface of stratum basale, and the moisture absorption expanded layer includes entity portion and fretwork part. Further, the hygroscopic expansion layer may be at least partially in the form of dots, lines or a mesh pattern. The dot, line or grid pattern may comprise any shape of cells such as hexagonal, diamond, snowflake, solid dots, oval, and short lines.
The material of the hygroscopic expansion layer comprises polyurethane material. The polyurethane material comprises MDI-based polyether polyurethane, wherein MDI is diphenylmethane diisocyanate. In addition to the MDI-based polyether urethane, the raw material of the hygroscopic expansion layer may further include at least one of a small amount of a crosslinking curing agent, an antioxidant, a stabilizer and a lubricant. The polyurethane material is heated, melted and then cross-linked and solidified, and loses the property of hot melt. The cured polyurethane material absorbs water to expand; after drying, the moisture evaporated and the material recovered. Generally, in terms of the structure of the polymer material, two conditions are required for the material to have water-swelling property: one is that the molecular chain contains hydrophilic groups, and the other is lightly crosslinked to form a three-dimensional network structure. The principle of water absorption and expansion of the polyurethane material in the embodiment is that oxygen atoms in ether bonds (-CH2-CH2-O-CH2-CH2-) of polyether chain segments in the diphenylmethane diisocyanate-based polyether urethane have a pair of un-bonded lone-pair electrons, and can be connected with hydrogen atoms in water molecules to form a hydrogen bond, so that the water absorption function is formed. On the other hand, the polyurethane material contains a small amount of cross-linking agent, and when the polyurethane material is heated and melted at 120 ℃ for example, the auxiliary agent can generate bridging cross-linking reaction to form a slightly cross-linked three-dimensional network, so that the polyurethane material can repeatedly absorb water and expand.
The material of the substrate layer comprises at least one material of polyester, nylon, polyester-ammonia, nylon-ammonia knitted fabrics and woven fabrics and all-cotton fabrics.
Fig. 1 is a schematic structural view of a device for preparing a moisture absorption deformation fabric according to another embodiment of the present invention. The preparation facilities of moisture absorption deformation surface fabric that this embodiment provided reforms transform traditional gravure printing equipment, combines together it with the hot plate. As shown in fig. 1, the apparatus for preparing an absorbent shape-changeable fabric of this embodiment includes a heating plate 110, a doctor blade 120 extending along a long side of the heating plate 110, an embossing roll 130, and a fabric transfer roll 140. The edge of the heated plate 110 to which the doctor blade 120 is attached is adjacent the embossing roll 130. The axis of the fabric transfer roll 140 is parallel to the axis of the embossing roll 130 and the fabric 150 is transferred between the fabric transfer roll 140 and the embossing roll 130. The heating plate 110 may be a rectangular electric heating plate.
The pattern of the embossing roll 130 may include at least one of dot, line and grid patterns. The dot, line or grid pattern may comprise any shape of cells such as hexagonal, diamond, snowflake, solid dots, oval, and short lines. As an alternative embodiment, the pattern of embossing roll 130 may include at least one of a dispersed hexagonal pattern, a dispersed diamond pattern, a dispersed snowflake pattern, a dispersed circular pattern, a continuous hexagonal pattern, and a continuous snowflake pattern.
Fig. 2 is a working flow chart of the device for preparing the hygroscopic deformation fabric shown in fig. 1.
As shown in FIG. 2, in step S310, a heating plate with a doctor blade on one side is brought close to the embossing roll at a set slope so that the doctor blade abuts the embossing roll, and heating of the heating plate is initiated. As an alternative embodiment, a rectangular heating plate with a scraper on one side is close to an embossing roller of the printing equipment at a certain inclination, the scraper is tightly attached to the embossing roller, and a heating button of the heating plate is turned on to start heating. The heating temperature of the heating plate may be set to 100-150 deg.c.
In step S220, the polyurethane material is placed on a heating plate to be melted. As an alternative embodiment, after the temperature of the heating plate is stabilized, the polyurethane material is placed on the heating plate and melted.
In step S230, the polyurethane material is melted on the heating plate and flows onto the embossing roll, and the polyurethane melt on the non-engraved portion of the embossing roll is scraped off by the scraper, so that the polyurethane melt is left in the concave pattern of the embossing roll.
In step S240, the fabric transfer is started, and when the embossing roller imprints the fabric, the polyurethane melt enters into the cavities or concave-convex parts adhered to the surface of the fabric, and forms mechanical attraction by solidification, thereby generating a binding force. As an alternative embodiment, after the embossing roller is uniformly coated with the polyurethane melt, the fabric conveying roller is started, and when the embossing roller embosses the fabric, the polyurethane melt enters into the cavities or the concave-convex parts adhered to the surface of the fabric, and forms mechanical attraction through solidification, so that the binding force is generated.
And step S250, drying the fabric to obtain the moisture absorption deformation fabric. As an optional implementation mode, the fabric is dried by blowing to obtain the polyurethane printed fabric. And standing the fabric for a set number of days at room temperature so that the polyurethane material is completely crosslinked and cured, and finally preparing the polyurethane printed fabric capable of absorbing moisture, expanding and deforming.
According to the printed fabric prepared by the preparation device, after the fabric absorbs moisture, the fabric printed with the pattern is absorbed by the moisture and expanded to form the bulge, and the contact part of the fabric with the pattern is concave and convex, so that the fabric is not easy to adhere, and the dry and comfortable feeling is kept. Meanwhile, compared with the non-printed fabric, the printed fabric is stretched due to moisture absorption and expansion of the polyurethane, the length of the yarn breathable pipeline is possibly reduced, the breathability of the fabric is increased, moist and hot air in the garment can be released, and the heat-moisture comfortable feeling of the garment is improved; after the fabric is dried and the moisture is volatilized, the fabric is recovered. The utility model discloses a moisture absorption deformation surface fabric basement surface fabric selection range is wide, the surface fabric of different materials, for example dacron, polyamide fibre, wash the looped fabric or the shuttle of ammonia, polyamide ammonia etc to and the surface fabric of different organizational structure all can be suitable for, has better universality. In addition, the polyurethane printed fabric has high washing fastness, and the moisture absorption expansion deformation effect still exists after washing for many times, so that the polyurethane printed fabric has better durability.
The following describes the performance of the printed fabric prepared by the preparation device of the embodiment of the present invention in detail through several comparative experiments. The experimental procedure used was as follows: after the fabric absorbs water with the same weight of the fabric, namely the water absorption rate is 100%, the weight is weighed in a constant temperature and humidity environment, after the water absorption rate is calculated, the air permeability is measured according to GB/T5453-1997, and the water absorption rate and the air permeability are measured for different times of 30 minutes, 60 minutes, 120 minutes, 180 minutes and the like in sequence according to the same method.
Experiment 1
The base layer is made of a polyester-ammonia fabric, and the printed pattern is a long hexagon. The change of the long hexagonal printed polyurethane fabric before and after water absorption is shown in figure 3. As can be seen from figure 3, after the long hexagonal printed polyurethane fabric absorbs water, the moisture absorption expansion layer absorbs water to expand. If the base layer is used as a skin-close surface, the base layer is not close to the skin after absorbing sweat, so that the wearing comfort of the garment is improved.
Analysis of the air permeability test results:
TABLE 1 comparison of air Permeability of unprinted polyester-ammonia fabric and long hexagonal printed polyester-ammonia fabric at different water contents
As can be seen from the comparison results in Table 1, in a dry state, compared with the non-printed fabric, the sizing material in the long hexagonal printed polyester-ammonia fabric restrains the hairiness on the surface of the fabric, the length of the air-permeable pipeline of the fabric is reduced, the air-permeable aperture is increased, and the air permeability is improved. For unprinted fabrics, as the humidity increases, water occupies the pores of the fabric and a continuous film of water is easily formed between the fibers, so air permeability is significantly reduced. However, at the beginning stage of humidity increase of the printed fabric, moisture is absorbed and expanded by the polyurethane adhesive, and yarns can be pulled, so that the air permeability of the fabric is improved; as the humidity is further increased, water occupies the pores of the fabric and a continuous water film is easily formed between the fibers, so the air permeability is decreased. But the air permeability of the printed fabric is still obviously improved compared with that of the non-printed fabric with the same water content, so that the printed fabric has more excellent hot and wet comfort.
Experiment 2
The base layer is made of a polyester-ammonia fabric, and the printed pattern is diamond-shaped. The change before and after water absorption of the diamond-shaped printed polyurethane fabric is shown in figure 4. As can be seen from FIG. 4, after the diamond-shaped printed polyurethane fabric absorbs water, the polyurethane adhesive absorbs water and expands. If the base layer is used as the skin-close surface of the garment, the base layer absorbs sweat to prevent sweat dripping, and the wearing safety of the garment is improved.
Analysis of the air permeability test results:
TABLE 2 comparison of air permeability of unprinted polyester-ammonia fabric and diamond-shaped printed polyester-ammonia fabric at different water contents
As can be seen from the comparison results in Table 2, in a dry state, compared with the non-printed fabric, the sizing material in the diamond-shaped printed polyester-ammonia fabric restrains the hairiness on the surface of the fabric, the length of the air-permeable pipeline of the fabric is reduced, the air-permeable aperture is increased, and the air permeability is improved. For unprinted fabrics, as the humidity increases, water occupies the pores of the fabric and a continuous film of water is easily formed between the fibers, so air permeability is significantly reduced. However, at the initial stage of humidity increase of the printed fabric, moisture is absorbed and expanded by the polyurethane adhesive, and yarns can be pulled, so that the air permeability of the fabric is slightly improved; as the humidity is further increased, water occupies the pores of the fabric and a continuous water film is easily formed between the fibers, so the air permeability is decreased. But the air permeability of the printed fabric is still obviously improved compared with that of the non-printed fabric with the same water content, so that the printed fabric has more excellent hot and wet comfort.
Experiment 3
The base layer is made of a polyester-ammonia fabric, and the printed pattern is in a snowflake shape. The change of the snowflake-shaped printed polyurethane fabric before and after water absorption is shown in figure 5. As can be seen from figure 5, after the snowflake-shaped printed polyurethane fabric absorbs water, the polyurethane adhesive absorbs water and expands. If the base layer is used as the skin-close surface of the garment, the base layer is not close to the skin after absorbing sweat, so that the wearing comfort of the garment is improved.
Analysis of the air permeability test results:
TABLE 3 comparison of air Permeability of unprinted polyester-ammonia fabrics and snowflake-shaped printed polyester-ammonia fabrics at different moisture contents
As can be seen from the comparison results in Table 3, the sizing material in the snowflake-shaped printed polyester-ammonia fabric restrains the hairiness on the surface of the fabric, the length of the air-permeable pipeline of the fabric is reduced, the air-permeable aperture is increased, and the air permeability is improved in a dry state compared with the non-printed fabric. For unprinted fabrics, as the humidity increases, water occupies the pores of the fabric and a continuous film of water is easily formed between the fibers, so air permeability is significantly reduced. However, at the initial stage of humidity increase of the printed fabric, moisture is absorbed and expanded by the polyurethane adhesive, and yarns can be pulled, so that the air permeability of the fabric is slightly improved; as the humidity is further increased, water occupies the pores of the fabric and a continuous water film is easily formed between the fibers, so the air permeability is decreased. But the air permeability of the printed fabric is still obviously improved compared with that of the non-printed fabric with the same water content, so that the printed fabric has more excellent hot and wet comfort.
Experiment 4
The base layer is made of a polyester-ammonia fabric, and the printed patterns are linear hexagons. The change of the linear hexagonal printed polyurethane fabric before and after water absorption is shown in figure 6. As can be seen from FIG. 6, after the linear hexagonal printed polyurethane fabric absorbs water, the polyurethane adhesive absorbs water and expands. If the base layer is used as the skin-close surface of the garment, the base layer is not close to the skin after absorbing sweat, so that the wearing comfort of the garment is improved.
Analysis of the air permeability test results:
TABLE 4 comparison of air Permeability of unprinted polyester-ammonia fabric and linear hexagonal printed polyester-ammonia fabric at different water contents
From the comparison results in table 4, it can be seen that, in the dry state, compared with the non-printed fabric, the sizing material in the linear hexagonal printed polyester-ammonia fabric restrains the hairiness on the surface of the fabric, the length of the air-permeable pipeline of the fabric is reduced, the air-permeable aperture is increased, and the air permeability is improved. For unprinted fabrics, as the humidity increases, water occupies the pores of the fabric and a continuous film of water is easily formed between the fibers, so air permeability is significantly reduced. However, at the initial stage of humidity increase of the printed fabric, moisture is absorbed and expanded by the polyurethane adhesive, and yarns can be pulled, so that the air permeability of the fabric is slightly improved; as the humidity is further increased, water occupies the pores of the fabric and a continuous water film is easily formed between the fibers, so the air permeability is decreased. But the air permeability of the printed fabric is still obviously improved compared with that of the non-printed fabric with the same water content, so that the printed fabric has more excellent hot and wet comfort.
The above mentioned embodiments are only examples of the present invention, and not intended to limit the scope of the claims of the present invention, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the claims of the present invention.
Claims (5)
1. The moisture absorption deformation fabric is characterized by comprising a base layer and a moisture absorption expansion layer which is attached to the surface of the base layer in a dot, linear or grid pattern mode, wherein the moisture absorption expansion layer comprises a solid part and a hollow part;
the moisture absorption expansion layer comprises a polyurethane material, and after the fabric absorbs moisture, the fabric of the solid part of the moisture absorption expansion layer absorbs moisture and expands to form bulges, so that the parts contacting with a body are concave and convex.
2. The hygroscopic deformation fabric as claimed in claim 1, wherein said hygroscopic expansion layer is made of a material comprising a polyurethane material.
3. The absorbent shape-changing fabric according to claim 2, wherein the polyurethane material comprises diphenylmethane diisocyanate-based polyether urethane.
4. The utility model provides a preparation facilities of moisture absorption deformation surface fabric, its characterized in that includes the hot plate, along scraper, embossing roll and the surface fabric transmission roller that the long limit of hot plate extends, the limit that the scraper was installed to the hot plate is close to the embossing roll, and the axle of surface fabric transmission roller is parallel with the axle of embossing roll, and the surface fabric transmits between surface fabric transmission roller and embossing roll.
5. The apparatus for preparing an absorbent shape-changing fabric according to claim 4, wherein the pattern of the embossing roll comprises at least one pattern selected from the group consisting of dot, line and mesh patterns.
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| CN110757947A (en) * | 2019-11-29 | 2020-02-07 | 李宁（中国）体育用品有限公司 | Moisture absorption deformation fabric and preparation device and preparation method thereof |
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| CN110757947A (en) * | 2019-11-29 | 2020-02-07 | 李宁（中国）体育用品有限公司 | Moisture absorption deformation fabric and preparation device and preparation method thereof |
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Effective date of registration: 20210518 Address after: 101111 Beijing Tongzhou District Zhongguancun science and Technology Park Tongzhou yuan Guang mechanical and electrical integration industrial base Xingguang five street 8 Patentee after: LINING (CHINA) SPORTS GOODS Co.,Ltd. Patentee after: Li Ning Sports Technology (Shenzhen) Co.,Ltd. Address before: 101111 Beijing Tongzhou District Zhongguancun science and Technology Park Tongzhou yuan Guang mechanical and electrical integration industrial base Xingguang five street 8 Patentee before: LINING (CHINA) SPORTS GOODS Co.,Ltd. |