CN112080939A - Concave-convex forming fabric - Google Patents

Concave-convex forming fabric Download PDF

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Publication number
CN112080939A
CN112080939A CN201910513221.1A CN201910513221A CN112080939A CN 112080939 A CN112080939 A CN 112080939A CN 201910513221 A CN201910513221 A CN 201910513221A CN 112080939 A CN112080939 A CN 112080939A
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CN
China
Prior art keywords
fabric
concave
convex
concavo
base cloth
Prior art date
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Pending
Application number
CN201910513221.1A
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Chinese (zh)
Inventor
顾金凤
景红川
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Toray Fibers and Textiles Research Laboratories China Co Ltd
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Toray Fibers and Textiles Research Laboratories China Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Toray Fibers and Textiles Research Laboratories China Co Ltd filed Critical Toray Fibers and Textiles Research Laboratories China Co Ltd
Priority to CN201910513221.1A priority Critical patent/CN112080939A/en
Publication of CN112080939A publication Critical patent/CN112080939A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using knitted fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes

Abstract

The invention discloses a concave-convex forming fabric. The concave-convex molding fabric comprises base cloth and thermoplastic elastic resin attached to the base cloth, the fabric is provided with a plurality of concave parts, and the ratio of the depth of the concave parts to the thickness of the base cloth is more than 5; the thermoplastic elastomer resin contains a compound having a specific structural formula. The concave-convex forming fabric has proper concave-convex depth, moderate thickness, excellent elasticity and soft hand feeling.

Description

Concave-convex forming fabric
Technical Field
The invention relates to a concave-convex forming fabric.
Background
The surface concave-convex structure of the existing fabric is generally realized by the change of the texture design or by a hot roller embossing technology. Among them, in the study of the hot roll embossing technology, for example, a hot-embossed nonwoven fabric disclosed in chinese patent document CN108691136A, a nonwoven fabric containing thermoplastic fibers is hot-embossed, and the ratio of the thickness in the bottom surface region of the recessed portion to the thickness of the nonwoven fabric in the non-embossed region is at most 0.1, and although it has a significant 3D structure, the hot roll embossing technology has problems that the depth of the concave-convex structure is shallow, the shape is simple, and the shape retention is poor due to the limitation of the diameter and curved surface of the heated roll roller.
In addition, in the conventional molding process, the base fabric and the foamed polyurethane resin layer are generally sandwiched and adhered, and then, the base fabric and the foamed polyurethane resin layer are subjected to hot press molding (for example, a cup of a brassiere) on a metal mold having a concave-convex surface.
In addition, the fabric coated with the hot melt adhesive is subjected to melt molding under high-temperature treatment, and although a product with proper concave-convex depth can be obtained, the hot melt adhesive is hardened after being melted and cooled, so that the elasticity and the hand feeling are poor.
Disclosure of Invention
The invention aims to provide a concave-convex forming fabric which has proper concave-convex depth, moderate thickness, excellent elasticity and soft hand feeling.
The concave-convex forming fabric comprises base cloth and thermoplastic elastic resin attached to the base cloth. The fabric is provided with a plurality of concave parts, and the ratio of the depth of the concave parts to the thickness of the base fabric is more than 5; and the thermoplastic elastic resin includes a compound having the following structural unit a:
Figure 749386DEST_PATH_IMAGE001
;
n is 5 to 200.
Compared with the common hot-embossing product, the concave-convex forming fabric has obvious concave-convex effect and good shape retention; and has moderate thickness, good elasticity and soft hand feeling.
Detailed Description
The concave-convex forming fabric comprises base cloth and thermoplastic elastic resin attached to the base cloth. The fabric has a plurality of concave parts, and the concave parts can be on the surface of the fabric or on the reverse side of the fabric. In the present invention, the degree of unevenness is expressed by the ratio of the depth of the concave portion to the thickness of the base fabric. If the ratio of the depth of the concave portion to the thickness of the base fabric is 5 or less, the effect of the concave-convex is not significant, and therefore the ratio of the two is more than 5 in the present invention. The larger the ratio is, the stronger the surface irregularity effect is, but the shape retention of the three-dimensional structure tends to be lowered, and therefore 6 to 10 is preferable.
The thermoplastic elastic resin used in the present invention includes a compound having the following structural unit a:
Figure 666526DEST_PATH_IMAGE002
;
n is 5 to 200.
The structural unit A is connected to the chain segment of the polyurethane, so that the molecular chain can be lengthened, and the elastic effect of the resin can be improved due to the existence of the hard segment and the soft segment on the molecular chain.
Preferably, the content of the structural unit A in the thermoplastic elastomer resin is more than 10000ppm and not more than 250000 ppm. From the viewpoint of the concavo-convex forming effect, if the content of the above-mentioned structural unit is too small, the concavo-convex forming effect tends to be deteriorated; on the other hand, the larger the content of the structural unit, the harder the hand tends to be. The content of the above-mentioned structural unit is more preferably 20000ppm or more and 150000ppm or less.
The air layer structure is a structure in which the upper and lower surface layers are connected together by spacer threads to form a sandwich structure. Because of having sandwich structure, the interval space gap is great, is difficult to corrugate, and polyurethane resin processing back compares with the surface fabric of weave such as plain weave, twill, undershirt cloth, and no matter the shaping effect has more obvious superiority still with the shape retention. In consideration of wearing comfort and the like, the base fabric is preferably one having a grammage of less than 600g/m2The air layer structure knitted fabric of (1). More preferably, the gram weight is 100 to 600g/m2More preferably 150 to 500g/m2。
Preferably, the heat retaining property of the uneven molded fabric of the present invention is 0.6 or more.
Preferably, the shape retention of the concavo-convex molded fabric of the present invention after 20 times of home washing is 80% or more.
Preferably, the warp or weft of the concavo-convex forming fabric of the invention is stretched for 1500 times for 30% to have a shape retention rate of 70% or more.
The present invention will be further described with reference to examples and comparative examples, but the present invention is not limited thereto.
The invention relates to a method for testing various parameters, which comprises the following steps:
(1) content of structural units
Approximately 15mg of the fabric was cut out as a test sample, and subjected to Magnetic Resonance Imaging (MRI) analysis to determine the content of the structural units.
(2) Heat insulating property
Clo values were determined according to the KES-F7 method.
(3) Keeping the shape of the product
Firstly, randomly cutting 3 pieces of fabric with the size of 10 cm-8 cm as a test sample. 3 test specimens were measured according to JIS L0217103: after 20 standard washes by 1995, the total number of irregularities on the surface of the test specimen was counted, and then the test specimen was pressed against one of the test specimens using a 200g plate, and a 500g weight was added thereto, and after 60 seconds, the weight was removed, and after 60 seconds, the state of the irregularities on the surface of the test specimen was observed, and the number of squashed portions was counted. The shape-retaining rate after washing of one test sample is calculated according to the following formula: shape retention after washing (%) = (1-number of crushed concavo-convex portions/total number) × 100%; testing the rest two test samples according to the method, and taking the average value as the shape-preserving rate of the invention after washing;
and secondly-1, cutting 3 pieces of fabric with the warp direction of 10cm and the weft direction of 8cm to serve as a test sample. The test was carried out by holding one of the test specimens with both ends in the warp direction on a fatigue resistance test apparatus DC-210 (manufactured by Dailong scientific Seiki, Japan) and setting the tensile condition at 30% 1500 times, and the result was the yield after warp stretching. Testing the rest two test samples according to the method, and taking the average value as the shape-preserving rate after the warp stretching;
and 2, cutting 3 pieces of fabric with the size of 8cm in the warp direction and 10cm in the weft direction to serve as a test sample. In the fatigue resistance test apparatus DC-210 (manufactured by Kagaku scientific Seiki, Japan), both ends of one of the test specimens in the weft direction were sandwiched, and the test was conducted under a 30% stretching condition set 1500 times, and the result was the yield after the warp stretching. The remaining two test pieces were tested as above and the average value was taken as the shape retention after weft stretching of the present invention.
The chemicals used in the following examples and comparative examples were polyurethane chemicals from Rihua chemical Co., Ltd,
Figure 1
。
example 1
100g/L of medicament A-1 is selected to have a gram weight of 200g/m2The air layer knitted fabric is padded, the rolling residual rate is 65%, then the air layer knitted fabric is dried in a drying machine at 100 ℃ for 3 minutes, and then the air layer knitted fabric is molded on a high-temperature high-pressure molding machine at 180 ℃ for 1 minute to obtain the concave-convex molding fabricThe results of the various performance tests are shown in Table 1.
Example 2
The amount of the agent A-1 was adjusted to 300g/L, and the same procedures as in example 1 were repeated to obtain a textured molded fabric of the present invention, wherein the results of the performance tests are shown in Table 1.
Example 3
The amount of the agent A-1 was adjusted to 500g/L, and the same procedures as in example 1 were repeated to obtain a textured molded fabric of the present invention, wherein the results of the performance tests are shown in Table 1.
Example 4
Selecting 100g/L medicament A-2 with a gram weight of 400g/m2The air layer knitted fabric of (3) was subjected to padding processing in the same manner as in example 1 to obtain a concavo-convex formed fabric of the present invention, and the results of the respective performance tests are shown in Table 1.
Example 5
Selecting 100g/L medicament A-3 with a gram weight of 200g/m2The single jersey knitted fabric of the present invention was padded in the same manner as in example 1 to obtain a concave-convex formed fabric of the present invention, and the results of the performance tests are shown in table 1.
Example 6
The air layer knitted fabric was replaced with a plain woven fabric, and the same operation as in example 1 was carried out to obtain a textured molded fabric of the present invention, and the results of the performance tests thereof are shown in table 1.
Example 7
The amount of the agent A-1 was adjusted to 30g/L, and the same procedures as in example 1 were repeated to obtain a textured molded fabric of the present invention, wherein the results of the performance tests are shown in Table 1.
Example 8
The amount of the agent A-1 was adjusted to 100g/L, and the same procedures as in example 1 were repeated to obtain a textured molded fabric of the present invention, and the results of the performance tests are shown in Table 1.
Comparative example
The same procedure as in example 1 was repeated except that the polyurethane resin was not processed to obtain a concave-convex formed fabric, and the results of the performance tests thereof are shown in Table 1.
TABLE 1
Figure 716839DEST_PATH_IMAGE004
According to the results of Table 1 below,
(1) from examples 1, 2 and 3, it is understood that the higher the content of the structural unit A, the better the shape-retaining effect under the same conditions.
(2) From examples 1 and 4, it is clear that the gram weight is 400g/m under the same conditions2The fabric and the gram weight of the fabric are 200g/m2Compared with the fabric, the heat retaining property and the shape retaining rate of the fabric are both superior to those of the fabric.
(3) From examples 1 and 6, it is understood that the heat retaining property and shape retaining rate of the air layer-weave knitted fabric are superior to those of the plain weave woven fabric under the same conditions.
(4) From example 8 and example 7, it is understood that under the same conditions, the heat retaining property and shape retaining rate of the fabric with the structural unit A content of 10000ppm are superior to those of the fabric with the structural unit A content of 5500 ppm.
(5) As is clear from comparative example and example 1, the heat retaining property and shape retention of the fabric obtained without using the polyurethane resin are superior to those of the fabric obtained by using the polyurethane resin under the same conditions.

Claims (6)

1. The concave-convex forming fabric comprises base cloth and thermoplastic elastic resin attached to the base cloth, and is characterized in that: the fabric is provided with a plurality of concave parts, and the ratio of the depth of the concave parts to the thickness of the base fabric is more than 5; the thermoplastic elastic resin includes a compound having the following structural unit a:
Figure 525823DEST_PATH_IMAGE001
,
r is
Figure 933802DEST_PATH_IMAGE002
;
n is 5 to 200.
2. The concavo-convex molding fabric as set forth in claim 1, wherein: the content of the structural unit A is more than 10000ppm and less than or equal to 250000 ppm.
3. The concavo-convex molding fabric according to claim 1 or 2, characterized in that: the gram weight of the base fabric is less than 600g/m2The air layer structure knitted fabric of (1).
4. The concavo-convex molding fabric according to claim 1 or 2, characterized in that: the heat preservation performance of the fabric is more than 0.6.
5. The concavo-convex molding fabric according to claim 1 or 2, characterized in that: the shape retention rate of the fabric after 20 times of home washing is over 80 percent.
6. The concavo-convex molding fabric according to claim 1 or 2, characterized in that: the shape retention rate of the fabric after 30% stretching for 1500 times of warp or weft is more than 70%.
CN201910513221.1A 2019-06-14 2019-06-14 Concave-convex forming fabric Pending CN112080939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910513221.1A CN112080939A (en) 2019-06-14 2019-06-14 Concave-convex forming fabric

Publications (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05321121A (en) * 1992-05-11 1993-12-07 Toyobo Co Ltd Leather-like short fiber nonwoven fabric
KR20050091628A (en) * 2005-05-26 2005-09-15 박상호 Coating fabric with concave and convex pattern and method for producing the same
CN107109784A (en) * 2014-12-15 2017-08-29 世联株式会社 Cloth and silk and its manufacture method with concave-convex design
CN108729000A (en) * 2018-06-19 2018-11-02 安踏（中国）有限公司 A kind of fabric and fabric processing method, a kind of dress ornament

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05321121A (en) * 1992-05-11 1993-12-07 Toyobo Co Ltd Leather-like short fiber nonwoven fabric
KR20050091628A (en) * 2005-05-26 2005-09-15 박상호 Coating fabric with concave and convex pattern and method for producing the same
CN107109784A (en) * 2014-12-15 2017-08-29 世联株式会社 Cloth and silk and its manufacture method with concave-convex design
CN108729000A (en) * 2018-06-19 2018-11-02 安踏（中国）有限公司 A kind of fabric and fabric processing method, a kind of dress ornament

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