JP5602040B2 - Laminated fabric - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a laminate fabric used for various clothes that require windproof, waterproof, moisture-permeable and waterproof properties such as rain gear, climbing clothes, sportswear, and work clothes.

  Conventionally, in clothing applications that require windproof, waterproof, moisture-permeable and waterproof properties, a laminated fabric that satisfies the required performance by laminating a resin film on one side of a fabric or knitted fabric by means of coating or laminating. Is provided.

  The fabric used for these laminated fabrics is often woven because of its light weight and good physical properties against snags. However, generally used woven fabrics are inferior in elasticity, so that the fabric feels tight and cramped during attachment and detachment and exercise.

  On the other hand, in the knitted fabric, the constituent yarn can move because the fabric is composed of stitches. For this reason, laminate fabrics using knitted fabrics are often used in fields such as sports that are structurally stretchable and do not impede movement.

  However, there are problems that it is heavier than the woven fabric and has poor physical properties against the snag on the fabric surface.

  On the other hand, a moisture permeable waterproof fabric having a three-layer structure is proposed in which a moisture permeable waterproof layer is laminated on one side of a base fabric, and further a fabric made of processed yarn having a total fineness of 16 dtex or less is laminated thereon. (Patent Document 1).

  However, although the moisture permeable waterproof fabric proposed in Patent Document 1 is characterized by excellent lightness, there is a problem that physical properties against snag and the like are inferior when the fabric surface is used as a front surface.

  For this reason, it has been proposed that a laminate fabric that is stretchable, lightweight, and has good physical properties with respect to, for example, snacks on the fabric surface has not yet been proposed.

JP 2010-201811 A

  In view of the above-described points, the object of the present invention is to solve a problem of physical properties with respect to snacks on the fabric surface, and is a lightweight and stretchable laminate fabric that is easy to put on and take off when used as various clothing. Is to provide.

In order to solve this problem, the laminate fabric of the present invention has the following configuration (1).
(1) It consists of false-twisted synthetic fiber multifilament yarn having a total fineness of 20 to 60 dtex and a single fiber fineness of 0.2 to 10 dtex, and the number of stitches per 6.45 cm ² is 6, 000 to 13,000 single circular knitted fabrics and resin films are formed from at least two layers , and the resin film is laminated on the needle loop surface of the single circular knitted fabrics. Fabric.

Moreover, in the laminated fabric of this invention, Preferably, it is a laminated fabric which consists of a structure in any one of the following (2)-(5).
(2) The laminated fabric according to (1), wherein the synthetic fiber multifilament yarn is a polyester fiber or a polyamide fiber.
(3) The laminated fabric according to (1) or (2), wherein the single circular knitted fabric has a cover factor (CF) of 800 to 1700.
(4) The laminate fabric according to any one of (1) to (3), wherein the weight of the single circular knitted fabric is 30 to 100 g / m ² .
(5) The average elongation in the vertical and horizontal directions according to JIS L 1018-2003 8.14.2 elongation at constant load is 5 to 100% of the laminate fabric (1) to ( 4) The laminated fabric according to any one of the above.

  The laminate fabric of the present invention has excellent physical properties (anti-snagging properties) with respect to the snag on the fabric surface, durability with respect to the hook-and-loop fastener, etc., and is lightweight and stretchable. It has excellent windproof properties, waterproof properties, moisture permeability and waterproof properties, etc., and realizes a laminate fabric that is most suitable for various clothing such as rain gear, mountaineering clothes, sportswear or work clothes.

It is a schematic diagram of the surface (needle loop surface) of a single circular knitted fabric. It is a schematic diagram of the back surface (sinker loop surface) of a single circular knitted fabric. It is the schematic side view which showed an example of the laminated body fabric of this invention. It is the schematic side view which showed an example of the laminated body fabric of this invention. It is the microscope picture which expanded and showed the part which the fabric structure collapse | crumbled which became the factor determined to be the 1st grade of the test piece whose durability test result with respect to the hook-and-loop fastener was 1st grade. It is the microscope picture which expanded and showed the part which has the fluff which became the factor judged as the 2nd grade of the test piece whose durability test result with respect to the hook-and-loop fastener was the 2nd grade, but the fabric structure does not collapse . It is the microscope picture which expanded and showed the part where the fluff which became the factor judged that the 3rd grade of the durability test result with respect to a hook_and_loop | surface fastener, and the fabric structure did not collapse together.

  Hereinafter, the laminated fabric of the present invention will be described in detail with reference to the drawings.

The laminate fabric of the present invention is composed of false twisted synthetic fiber multifilament yarn having a total fineness of 20 to 60 dtex and a single fiber fineness of 0.2 to 10 dtex, and 6.45 cm ^2. It is formed from at least two layers of a single circular knitted fabric and a resin film whose number of per stitches is in the range of 6,000 to 13,000.

  In general, a double circular knitted fabric is often used for a laminate fabric that requires stretchability. However, as the name suggests, double circular knitted fabric is a knitted fabric with two layers of stitches, and the fabric tends to be heavy. For this reason, it is necessary to make the stitches coarser in order to make the fabric lighter, but the physical properties against snags and the like are poor.

  As shown in FIG. 1, a single circular knitted fabric with a single stitch can make the fabric lighter. However, since the stitches are one layer, there is a problem that when the resin films are laminated, a resin such as an adhesive easily enters the gap D of the stitches, and only that portion becomes glossy and the quality is deteriorated.

Therefore, first, it is necessary that the number of stitches per 6.45 cm ² is 6,000 to 13,000. The number of stitches per 6.45 cm ² is a value obtained by multiplying the number of wells per 2.54 cm by the number of courses per 2.54 cm. For example, the knit is wide and coarse.

  By setting the number of stitches to 6,000 or more, the interval between stitches is narrow, and the gap between stitches is narrow, so that the physical properties for snag and the like are good. Moreover, it becomes a cloth in which a resin such as an adhesive is difficult to enter. If the number of stitches is increased, the interval between stitches becomes narrow and the physical properties with respect to the snug and the like are improved. However, if the number exceeds 1,3,000, the fabric weight becomes too heavy and the laminate fabric becomes heavy. The number of stitches is more preferably 7,000 to 12,500, and further preferably 7,500 to 12,000.

  Moreover, it is important that the fibers constituting the single circular knitted fabric are false twisted synthetic fiber multifilament yarns.

  The false twisting is a processing method in which a yarn is strained by heat-setting in a state where the yarn is twisted and returning the twist to obtain a bulky yarn. The false-twisted multifilament yarn has fine distortion in each single fiber, so that the yarn can be swollen, and the gap D of the stitches can be narrowed when the yarn is formed. The false twisting method can be processed by conventional false twisting methods such as a 1 heater false twist method and a 2 heater false twist method.

  Moreover, the said fiber needs to be a thermoplastic synthetic fiber which can be false twisted, and a polyester fiber and a polyamide fiber can be used more preferably from a viewpoint of intensity | strength, durability, workability, and cost.

  Further, the fibers need to be multifilaments, and if they are monofilaments, the yarn cannot be swollen even if false twisting is performed, and the gaps of the stitches become wide when made into a fabric. From that viewpoint, the number of filaments is preferably 6 or more, and more preferably 12 or more. The upper limit is 150.

  Furthermore, it is important that the fibers constituting the single circular knitted fabric have a total fineness of 20 to 60 dtex, and more preferably 22 to 50 dtex. If the total fineness is less than 20 dtex, the strength such as rupture and wear becomes weak, and if it exceeds 60 dtex, it becomes too thick, resulting in a heavy laminate fabric.

  It is important that the single fiber fineness is 0.2 to 10 dtex, more preferably 0.3 to 8 dtex, and further preferably 0.4 to 5 dtex. If the single fiber fineness is less than 0.2 decitex, the yarn becomes too thin, resulting in poor physical properties for snags and the like. On the other hand, if it exceeds 10 decitex, the fabric becomes too hard, which makes it uncomfortable to wear various garments.

  The single circular knitted fabric can be knitted by selecting a knitting machine and setting knitting conditions, and setting and adjusting the number of wells and the number of courses by dyeing, so that the desired number of stitches can be finished.

  The knitting machine is preferably knitted using a single circular knitting machine of 46 gauge or more, and more preferably a single circular knitting machine of 58 gauge or more. When a knitting machine of less than 46 gauge is used, it is difficult to obtain the desired number of stitches, and the above-mentioned stitch gap D is widened. Therefore, it becomes impossible to obtain a single circular knitted fabric having no problem of physical properties with respect to snag or the like and no problem of quality in which a resin such as an adhesive enters the gap D. The knitting structure is not particularly limited, such as a flat knitting (tengu), a kanoko knitting, and a 1 × 1 tengu, but a tengu structure is preferred in consideration of physical properties and cost with respect to basis weight, thickness, and snug.

  The dyeing method can be processed by a conventionally known dyeing method. Further, conventionally known water repellent treatment, antistatic treatment, etc. can be applied as necessary.

The single circular knitted fabric used for the laminate fabric of the present invention preferably has a cover factor (CF) in the range of 800 to 1,700. The cover factor is a value calculated by the following formula.
CF = {√T × W} + {√T × C}
CF: Cover factor T: Total fineness of the component yarn (Decitex)
W: Number of wells per 2.54 cm C: Number of courses per 2.54 cm

  If the cover factor is less than 800, the density of the knitted fabric is too low, which causes a problem of physical properties with respect to snag and the like and a problem of quality in which a resin such as an adhesive enters the gap D, which is not preferable. On the other hand, if it exceeds 1,700, the density of the knitted fabric becomes high, and the fabric weight is too high, so that it is heavy as a laminated fabric, and the texture becomes coarse and hard. The cover factor is more preferably 900 to 1,500.

Further, it is preferable that the basis weight of the single circular knitted fabric is 30 to 100 g / m ^2. If it exceeds 100 g / m ² , it is not preferable because it becomes too heavy when it is made into a garment and becomes uncomfortable. On the other hand, if it is less than 30 g / m ² , since it is sometimes too light as a laminate fabric, the bursting strength is weakened, and it becomes easy to be damaged when used in various garments. Basis weight, more preferably in the range of 40~90g / m ^2.

Conventionally known resin films can be used as the resin film used for the laminate fabric of the present invention. Examples of the resin film material include polyurethane resins, acrylic resins, polyvinyl chloride resins, polyester resins, polyethylene resins, polypropylene resins, fluorine-containing resins, polyamide resins, polyimide resins, and the like. And may be appropriately selected according to the intended use. The thickness is preferably 3 to 100 μm, more preferably 5 to 50 μm. Basis weight is preferably 3~60g / m ^2, more preferably in the range of 3 to 50 g / m ^2.

For example, when used for clothing in the sports field where stretchability is particularly necessary, it is preferable to use a highly stretchable resin film made of polyurethane resin.
Moreover, when using for moisture-permeable waterproof clothing, it is preferable to use the moisture-permeable waterproof film which consists of a polyurethane-type resin, a polyester resin, a fluorine-containing resin, etc. In addition, the moisture-permeable and waterproof film can be divided into a porous resin thin film produced by a wet production method and a hydrophilic nonporous resin thin film produced by a dry production method. Good.

  The porous resin thin film is an open cell body in which a large number of ultrafine and uniformly dispersed pores are formed in a state of communicating with each other, and the pore width is approximately 0.3 to 3 μm. It is preferable. Since the water vapor has a particle size of about 0.4 nm and the particle size of rain and water is in the range of about 0.1 to 3 mm, water vapor having a particle size smaller than the pore width passes through the pores. It has excellent moisture permeability and waterproofness by preventing the penetration of rain and water having a particle size larger than the width. In addition, unlike the porous resin thin film described above, the hydrophilic non-porous resin thin film does not have a large number of open-celled pores, and has a hydrophilic group having hydrophilicity inside, thereby providing a moisture-permeable function. Is secured. When the water vapor concentration on one side of the hydrophilic nonporous resin thin film increases, the water vapor is taken into the thin film by the hydrophilic group inside the thin film, and further, the water vapor in the thin film moves to the other surface side where the water vapor concentration is low. Thus, the hydrophilic nonporous resin thin film exhibits excellent moisture permeability and waterproofness by allowing water vapor to pass through its own hydrophilic group.

  In the present invention, for the lamination of the single circular knitted fabric and the resin film, a conventionally known manufacturing technique such as a method of directly coating the fabric or a laminating method in which a film (film) is produced and adhered to the fabric with an adhesive or the like. Can be laminated.

  The direct coating method is to apply a resin according to the purpose in a uniform thin film directly on one side of the fabric to form a film (film), by passing it through water to form a film and drying it. There is a dry type that forms a film. In general, there are knife over roll coating, direct roll coating, reverse roll coating, gravure coating, etc. as the method of coating the resin. Good.

  The laminating method is to form a resin in accordance with the purpose in advance and apply an adhesive thereon to laminate the fabric. Alternatively, an adhesive may be applied to the cloth and a film-formed resin may be laminated. In general, there are knife over roll coating, direct roll coating, reverse roll coating, gravure coating, etc., as the method of applying the adhesive. Use the coating formulation to achieve the desired film thickness and coverage. Just apply.

  As the adhesive, conventionally known adhesives such as a curable resin adhesive that can be cured by reacting with heat or light as well as a thermoplastic resin adhesive can be used. For example, there are a polyester resin, a polyamide resin, a polyurethane resin, a silicone resin, an acrylic resin, a polyvinyl chloride resin, and a polyolefin resin. In particular, when the laminate fabric of the present invention is used for moisture-permeable and waterproof clothing, those having high moisture permeability are preferable.

  The coverage with the adhesive is not particularly limited, but the higher the peel strength is. For example, when the laminated fabric of the present invention is used for moisture-permeable and waterproof clothing, there is no problem with 100% covering all over the adhesive if it is a highly moisture-permeable adhesive, but considering both moisture permeability and water resistance. In general, the coverage is preferably 40 to 80%. A knife coater or the like can be used when it is desired to achieve full coverage with a coverage of 100%, and a gravure coater or the like can be used when the coverage is controlled to 40 to 80%. The gravure coater uses a roll engraved with dot-shaped recesses on the surface, and adjusts the area and depth of the recesses and the spacing between the recesses by processing by transferring an adhesive into the recesses and transferring to a resin film. The coverage can be set freely.

Further, the surface on which the resin film is laminated on the single circular knitted fabric can be originally either the surface (needle loop surface) as shown in FIG. 1 or the back surface (sinker loop surface) as shown in FIG. However, in the present invention, it is particularly important to laminate the needle loop surface.

That is, for example, when it is desired to leave the softness peculiar to the knitted fabric, a resin film may be laminated on the sinker loop surface and the needle loop surface may be used as the surface of the laminate fabric. Since the sinker loop surface has a concavo-convex structure as shown in FIG. 2, only the convex portions are bonded when laminated with the resin film, so that a soft texture is obtained.

However, as in the present invention, particularly when focusing on the physical properties for such snag, it is important that the sinker loop surface by laminating a resin film on the needle loop side to form a laminate fabric surface. Since the needle loop surface is smooth as shown in FIG. 1, the needle loop surface can be adhered to the entire surface when laminated with the resin film, and can be made difficult to peel off from the resin film, which is advantageous for snags .

  By using the above method, a single circular knitted fabric and a resin film are laminated as shown in FIG. 3 to obtain a two-layer laminate fabric as an example of the present invention. In FIG. 3, 1 is a single circular knitted fabric layer of a laminate fabric, and 2 is a resin film layer of the laminate fabric.

  In the laminated fabric of the present invention, a knitted fabric, a woven fabric, or a new resin may be laminated on the back surface (resin film surface). Since a laminated body composed of two layers of a cloth and a resin film is easily peeled off due to catching or friction, the lining is usually attached by sewing when making various clothing. However, since the resin film is easily peeled off in applications such as mountain climbing and sports, the resin film can be protected by laminating a knitted fabric, a woven fabric, or a new resin on the resin film surface. A schematic side view of the laminate fabric is shown in FIG. 3 is the resin film protective layer of the laminate fabric.

  The type of knitted fabric to be laminated on the back (resin film side) is not particularly limited, but the flat knitted fabric (tengu), Kanoko knitting, rib knitting, double knitting (smooth), pearl knitting, punch Rome knitting, Milan rib There are warp knitted fabrics such as single denvi knitting, single cord knitting, single atlas knitting, half tricot knitting, double denvi knitting and satin knitting.

  There are no particular restrictions on the fabric, such as plain weave, twill weave, satin weave, Nanako weave, steep oblique weave, weft double weave, warp double weave, warp double weave, but false twisted yarn to make the fabric stretchable It is preferable to use a stretchable fiber such as a side-by-side type composite fiber.

  The materials constituting these fabrics can be appropriately selected according to the use for which the laminated fabric is used, such as synthetic fibers and natural fibers, but polyesters are used from the viewpoint of strength, durability, workability, and cost. Fibers and polyamide fibers can be preferably used.

  The newly laminated resin may be laminated on the entire surface, or may be laminated on a non-entire surface such as a dot shape, a line shape, or a mesh shape. In the case of laminating on the entire surface, the coverage is preferably 50% or more in order to prevent the resin film from peeling off as the coverage increases.

  Examples of the resin include polyurethane resins, acrylic resins, polyester resins, and the like, and may be appropriately selected according to the application to be used. Moreover, components other than resin may be included. For example, to improve surface touch, inorganic particles such as silicon oxide, titanium oxide, titanium nitride, boron nitride, boron carbide, silicon carbide, silicon nitride, potassium titanate, zinc oxide, alumina, aluminum borate and acrylic In order to improve the coating strength, organic fine particles such as polyurethane, polyester, polyamide, etc., cross-linking agents, antioxidants, thickeners, etc. can be added pigments for coloring. .

  In the laminate fabric of the present invention, the average elongation in the vertical direction and the horizontal direction according to JIS L 1018-2003 8.14.2 elongation at constant load is preferably in the range of 5 to 100%. Here, the average elongation is an average of measured values in the vertical and horizontal directions. This is because when the laminate fabric is worn as various clothes and moved, it is not stretched in one direction of the fabric or in the horizontal direction, but the fabric is stretched three-dimensionally according to the roundness of the body. The average value of the measured values in the vertical and horizontal directions is evaluated.

  When a general woven fabric is used for the outer fabric, the laminate fabric has an average elongation of about 2% and hardly stretches. By using a laminate fabric having an average elongation of 5% or more and making it into various garments, it is possible to eliminate stretching of the fabric during attachment / detachment or exercise. However, if it exceeds 100%, the physical properties with respect to snag and the like are inferior. The average elongation is more preferably in the range of 10 to 90%.

  The laminate fabric of the present invention preferably has a JIS L 1058-2003 7.4 “anti-snag property on the fabric surface by the ICI pilling tester method” of grade 3 or higher.

  Moreover, it is preferable that the durability with respect to the hook-and-loop fastener on the surface of the fabric is second or higher in both the vertical direction and the horizontal direction.

  Hereinafter, the present invention will be described in more detail based on examples. In addition, each physical property in an Example was measured with the following method.

(1) Number of stitches The number of stitches was calculated by multiplying the number of courses per 2.54 cm of the knitted fabric and the number of wells. In the measurement, the number of wells per 2.54 cm and the number of courses of the flatly placed dough were counted, and each of five locations was measured, and the average value was obtained by rounding off the decimal point.

(2) Weight per unit area Mass (g / m ² ) per unit area of the test piece was measured based on JIS L 1018-2003 8.4.2.

(3) Average elongation JIS L 1018-2003 8.14.2 Based on the cut strip method of elongation at constant load, a 2.5 × 20 cm test piece was sampled and 9.8 N per 2.5 cm width of the sample ( An average value was calculated by measuring 5 sheets each in the vertical and horizontal directions with a constant load of 1 kgf). Further, the elongation at constant load in each of the vertical and horizontal directions was added, and the added value was halved to obtain the average elongation.

(4) Durability against hook-and-loop fastener The hook side of the hook-and-loop fastener (Kuraray Fastening Co., Ltd. “EM 20R for sewing CM Magic T”) is applied to the friction tester II type friction element described in JIS L 0849-2003. The test piece was attached toward the test stand, and the test piece was attached with the surface of the laminated fabric facing the friction element. However, the hook-and-loop fastener attached to the friction element is cut to about 2.5 x 2 cm and attached to the center of a white cotton cloth with a size of about 5 x 5 cm using double-sided tape. Were installed so that they were parallel. Moreover, the magnitude | size of the test piece was about 22 * 3 cm, and it affixed on the test stand using the double-sided tape. In this state, a 2N load was applied to the friction element, and friction was performed by reciprocating 100 times at a speed of 30 reciprocations per minute between 10 cm on the test piece. The test pieces were rubbed in the warp direction and the horizontal direction, respectively, and the friction piece was replaced with a new one each time. The state of the rubbed part of the test piece was evaluated in the following three stages, the average value in each of the vertical and horizontal directions (up to one digit after the decimal point) was calculated, and the numbers after the decimal point were rounded off.
≪Evaluation criteria≫
1st grade: Some fabric structure collapsed 2nd grade: Fluffy but no fabric texture collapsed 3rd grade: No fluffy fabric texture collapsed

  Photomicrographs of fabrics in each grade are shown in FIGS. 5, 6, and 7 as reference photographs. FIG. 5 shows an example of the first grade state. As shown in the center of the photograph, the state where the knitting yarn is completely cut and the stitches are lost even at a glance is called “disintegration of the fabric structure”. FIG. 6 shows an example of the second grade state, and the state in which the stitches remain as shown in the center of the photograph is called “there is fuzz but there is no collapse of the fabric structure”. FIG. 7 shows an example of the third grade state, which is “no fuzzing and no collapse of the fabric structure”.

(5) Snug test JIS L 1058-2003 7.4 Based on the ICI type pilling tester method, the anti-snugg property of the surface of the fabric was determined.

(6) Appearance Evaluation For appearance evaluation, 10 men and women evaluated the appearance of the surface of the laminate fabric.
≪Evaluation criteria≫
○: The surface of the fabric is very beautiful. △: The surface of the fabric is the same as a general knitted surface. ×: The surface of the fabric is not clean.

(7) Comprehensive evaluation as laminated fabric << Evaluation criteria >>
○: Excellent as a laminate fabric ×: Not excellent as a laminate fabric

Example 1 (Reference Example 1)
For dressing, a single circular knitted fabric with a 10-gauge 30-inch knitting machine was used to fabricate a single circular knitted fabric of 33 decitex 36 filament polyester (single fiber fineness 0.92 decitex), and normal dyeing A circular knitted fabric (weight per unit: 60 g / m ² , 83 wells / 2.54 cm, 103 courses / cm, number of stitches 8549 pieces / 6.45 cm ² ) prepared by the above method and subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin is bonded to the sinker loop surface of the circular knitted fabric with a polyurethane adhesive by a laminating method to form a two-layer laminate fabric Obtained.

Furthermore, using a polyurethane adhesive on the film surface of the two-layer laminate fabric, a circular knitted fabric with a tense structure using a 17 dtex 7-filament nylon raw yarn (raw yarn) prepared for backing (weight per unit: 22 g) / M ² ) were bonded together to obtain a three-layer laminate fabric (weight per unit: 126 g / m ² ) of Reference Example 1 . Since the film is bonded to the sinker loop surface, the use surface (surface) is the needle loop surface.

Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.
Example 2 (Invention Example 1)
For dressing, a single circular knitted fabric with a 10-gauge 30-inch knitting machine was used to fabricate a single circular knitted fabric of 33 decitex 36 filament polyester (single fiber fineness 0.92 decitex), and normal dyeing A circular knitted fabric (weight per unit: 60 g / m ² , 83 wells / 2.54 cm, 103 courses / cm, number of stitches 8549 pieces / 6.45 cm ² ) prepared by the above method and subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film made of polyurethane resin (weight per unit: 13 g / m ² ) is adhered to the needle loop surface of the circular knitted fabric using a polyurethane adhesive by a laminating method, and the two-layer lamination of the present invention is performed. A body fabric (weight per unit area: 92 g / m ² ) was obtained.

The evaluation results and the like of this two-layer laminate fabric are shown in Tables 1 and 2.
Example 3 (Reference Example 2)
For dressing, a single circular knitted fabric with a 10-gauge 30-inch knitting machine was used to fabricate a single circular knitted fabric of 33 dtex 72 filament polyester (single fiber fineness 0.46 dtex), and ordinary dyeing A circular knitted fabric (weighing: 66 g / m ² , 96 well / 2.54 cm, 111 course / cm, number of stitches 10656 / 6.45 cm ² ) processed by the above method and subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin is bonded to the sinker loop surface of the circular knitted fabric with a polyurethane adhesive by a laminating method to form a two-layer laminate fabric Obtained.

Furthermore, a warp knitted fabric with a half structure using a 22 dtex 9-filament nylon raw yarn (raw yarn) prepared for backing using a polyurethane adhesive on the film surface of the two-layer laminate fabric (weight per unit: 26 g) / M ² ) were bonded together to obtain a three-layer laminate fabric (weight per unit: 136 g / m ² ) of Reference Example 2 .

Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.
Example 4 (Reference Example 3)
As a surface material, a 44-decitex 12 filament nylon false twisted yarn (single fiber fineness 3.67 dtex) was knitted into a single circular knitted fabric with a ten-gauge structure using a 46 gauge 30 inch knitting machine, and then normal dyeing A circular knitted fabric (weighing: 79 g / m ² , 79 well / 2.54 cm, 102 course / cm, 8058 stitches / 6.45 cm ² ) prepared by the above method and subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film (weight per unit: 13 g / m ² ) made of polyurethane resin is adhered to the sinker loop surface of the circular knitted fabric using a polyurethane adhesive by a laminating method , and the two layers of Reference Example 3 A laminate fabric (weight per unit area: 111 g / m ² ) was obtained.

The evaluation results and the like of this two-layer laminate fabric are shown in Tables 1 and 2.
Comparative Example 1
As a surface material, a 33-decite 36-filament polyester false twisted yarn (single fiber fineness 0.92 dtex) is knitted into a smooth double knitted fabric using a 40-gauge 33-inch knitting machine. A circular knitted fabric (weight per unit: 71 g / m ² , 59 wells / 2.54 cm, 62 course / cm, number of stitches 3658 / 6.45 cm ² ) prepared by the above method and subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was adhered to one side of the circular knitted fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminate fabric. .

Furthermore, using a polyurethane adhesive on the film surface of the two-layer laminate fabric, a circular knitted fabric with a tense structure using a 17 dtex 7-filament nylon raw yarn (raw yarn) prepared for backing (weight per unit: 22 g) / M ² ) was laminated to obtain a three-layer laminate fabric (weight per unit: 136 g / m ² ).

Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.
Comparative Example 2
As a surface material, a 17-decite 5-filament nylon false twisted yarn (single fiber fineness 3.4 dtex) is knitted into a single circular knitted fabric with a ten-gauge structure using a 46 gauge 30 inch knitting machine, and then normal dyeing A circular knitted fabric (weighing: 23 g / m ² , 65 wells / 2.54 cm, 83 courses / cm, number of stitches 5395 / 6.45 cm ² ) prepared by the above method and subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin is adhered to the sinker loop surface of the circular knitted fabric using a polyurethane adhesive by a laminating method, and a two-layer laminate fabric ( A basis weight: 55 g / m ² ) was obtained.

The evaluation results and the like of this two-layer laminate fabric are shown in Tables 1 and 2.
Comparative Example 3
For dressing, a single circular knitted fabric with a 10-gauge 30-inch knitting machine is used to fabricate a single circular knitted fabric of 33 dtex 12 filaments (single fiber fineness 2.75 dtex) and processed by ordinary dyeing methods. A circular knitted fabric (water weight: 61 g / m ² , 82 wells / 2.54 cm, 108 courses / cm, number of stitches 8856 / 6.45 cm ² ) subjected to water repellent treatment was prepared.

A hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin is adhered to the sinker loop surface of the circular knitted fabric using a polyurethane adhesive by a laminating method, and a two-layer laminate fabric ( A basis weight: 93 g / m ² ) was obtained.

  The evaluation results and the like of this two-layer laminate fabric are shown in Tables 1 and 2.

1: Single circular knitted fabric layer of laminate fabric 2: Resin film layer of laminate fabric 3: Resin film protective layer of laminate fabric A: Constituent yarn D of knitted fabric D: Gap between stitches

Claims (5)

It consists of false-twisted synthetic fiber multifilament yarn having a total fineness of 20 to 60 dtex and a single fiber fineness of 0.2 to 10 dtex, and the number of stitches per 6.45 cm ² is 6,000 to 13 A laminated fabric characterized in that it is formed of at least two layers of 1,000 single circular knitted fabrics and a resin film , and the resin film is laminated on the needle loop surface of the single circular knitted fabric.   The laminated fabric according to claim 1, wherein the synthetic fiber multifilament yarn is a polyester fiber or a polyamide fiber.   The laminate fabric according to claim 1 or 2, wherein the single circular knitted fabric has a cover factor (CF) of 800 to 1,700. Laminate fabric according to claim 1, basis weight of the single circular knitted fabric is characterized in that it is a 30 to 100 g / m ^2.   5. The average elongation rate in the vertical direction and the horizontal direction according to JIS L 1018-2003 8.14.2 elongation rate under constant load is 5 to 100% of the laminate fabric. 2. Laminated body fabric as described in above.

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