JP4805408B1 - Three-layer laminate fabric - Google Patents

Abstract

[Problem] To provide a three-layer laminate fabric having good physical properties and texture against catching and abrasion on the back surface, having a good appearance quality, and being easy to wear and move.
A surface layer 1 is selected from the group consisting of a woven fabric, a knitted fabric and a nonwoven fabric, a resin film is used for the middle layer 2 and a synthetic fiber multifilament yarn of 33 dtex or less is used for the back layer 3. A single circular knitted fabric having 5,500 to 12,000 stitches per 45 cm ² is used, and these are laminated, and the average friction coefficient of the back layer is 0.05 to 0.19. A three-layer laminate fabric characterized.
[Selection] Figure 4

Description

  The present invention relates to a three-layer laminate fabric that is excellent in windproof properties, waterproof properties, and moisture-permeable waterproof properties, and is suitably used for various clothing items such as rain gear, mountaineering clothes, sportswear, and work clothes.

  Conventionally, as a fabric for clothing applications that require windproof, waterproof, moisture-permeable and waterproof properties, a resin film is laminated on one side of fabric such as woven fabric, knitted fabric or nonwoven fabric by means of coating or laminating, and the required performance is achieved. Fabrics consisting of filled two-layer laminates have been proposed.

However, in the case of two-layer laminated fabric obtained by laminating a fabric and a film, such as a woven or knitted or non-woven fabric, a resin film is likely to peel or damage, therefore, and the performance is lowered, direct contact with the resin film skin There was a problem that it was sticky when touched and the touch was not good.

  In order to solve such a problem, a fabric such as a woven fabric, a knitted fabric or a non-woven fabric is laminated on the surface of the film, and a fabric such as a woven fabric, a knitted fabric or a non-woven fabric is laminated to form a three-layer laminate. Fabrics with reduced peeling, damage, and stickiness are provided.

  For example, a three-layer laminate fabric in which a water-repellent nylon taffeta, a porous polytetrafluoroethylene film (film) treated with a hydrophilic polyurethane resin, and a nylon tricot knitted fabric are laminated has been proposed (Patent Document 1).

  The fabric used as the back surface of such a three-layer laminate fabric is required to be thin and light so as not to increase the thickness and basis weight of the three-layer laminate or to suppress stickiness when in contact with the skin. Therefore, a tricot knitted fabric having a concavo-convex structure on the fabric surface is often used. However, when a tricot knitted fabric is used on the back side, the hook side of the hook-and-loop fastener (“NEW ECO MAGIC” manufactured by Kuraray Fastening Co., Ltd.) and buttons are easily caught on the uneven structure of the tricot knitted fabric, and it deteriorates due to wear. There was a serious problem.

  Also, a laminate in which a woven fabric is laminated on a flexible waterproof and moisture-permeable film, and the woven fabric has a plain weave structure and is subjected to a sealing treatment when the laminate is processed into a textile product. A three-layer laminate fabric is proposed in which the total value of the cover factors of the warp and weft constituting the woven fabric is 700 to 1,300, and the fineness of the warp and weft is 55 dtex or less. (Patent Document 2 (see paragraph 0055, etc.)).

  The fabric of this three-layer laminate can suppress deterioration due to wear, for example, by using a woven fabric as the back surface. However, since the fabric tends to be harder than the knitted fabric, it is not preferable to use the fabric on the back surface that is the skin surface. Further, when the density of the woven fabric is lowered to reduce its weight, the appearance quality is deteriorated and the texture is further deteriorated.

  In addition, 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 the base fabric, and further, a fabric A using a processed yarn having a total fineness of 16 dtex or less is laminated thereon. (Patent Document 3).

  However, the moisture permeable and waterproof fabric proposed in Patent Document 3 is characterized by excellent lightness. When the fabric A is a woven fabric, there is a problem in the texture. There is a physical property problem of deterioration.

  As described above, the actual situation is that a three-layer laminate fabric that has good physical properties and texture against catching and abrasion on the back surface has not been realized yet.

Japanese Patent Laid-Open No. 55-7383 Japanese Patent No. 40482229 JP 2010-201811 A

  In view of the above points, an object of the present invention is to provide a three-layer laminate fabric that is easy to wear and easy to move when it is made into clothes by solving the problems of physical properties and texture against catching and wear on the back surface of the laminate. There is.

In order to achieve this object, the three-layer laminate fabric of the present invention has the following configuration (1).
(1) A resin film using a kind selected from the group of woven fabric, knitted fabric and non-woven fabric as the surface layer, and the middle layer is a single layer, and the back layer has a crimp of 33 dtex or less as the knitting yarn. Non-synthetic multifilament yarn straight yarn is used and only a single circular knitted fabric with a tengu structure having a number of stitches per 6.45 cm ² of 5,500 to 12,000 is used. the sinker loop surface of the earth as an adhesive surface with the middle layer, characterized in that said surface layer, said intermediate layer and back surface layer stacked, the average friction coefficient of the back surface layer is from 0.05 to .19 A three-layer laminate fabric.

In addition, the three-layer laminate fabric of the present invention preferably has any one of the following configurations (2) to (5) .
(2) an average surface roughness of the back surface layer of the three-layer laminate fabric, three-layer laminate fabric according to the above (1), wherein the at 7μm or less.
(3) The three-layer laminate fabric according to any one of (1) and (2) above, wherein a cover factor (CF) of the single circular knitted fabric is in the range of 400 to 900.
(4) The three-layer laminate fabric according to any one of (1) to (3) above, wherein the basis weight of the three-layer laminate fabric is 50 to 150 g / m ² .
(5) The three-layer laminate fabric according to any one of (1) to (4) above, wherein the three-layer laminate fabric has a thickness of 0.08 to 0.6 mm.

  According to the present invention, a three-layer laminate fabric excellent in windproof property, waterproof property, and moisture permeability and waterproof property can be obtained.

  By using the three-layer laminate fabric of the present invention, the back surface (skin surface) is less likely to be caught by hook-and-loop fasteners, buttons, etc., has excellent wear resistance, and has a good surface and back surface texture. Suitable for wear, work clothes, outdoor wear, leisure wear and the like.

It is a schematic diagram of the surface (needle loop surface) of the single circular knitted fabric used for this invention. It is a schematic diagram of the back surface (sinker loop surface) of the single circular knitted fabric used for this invention. It is the schematic diagram which showed the state when the single circular knitted fabric used for this invention was pulled in the width direction. It is the schematic side view which showed one example of the structure of the three-layer laminated fabric of this invention modelly.

  Hereinafter, the three-layer laminate fabric of the present invention will be described in detail with reference to the drawings.

The three-layer laminate fabric of the present invention is a resin film in which one kind selected from the group of woven fabric, knitted fabric and non-woven fabric is used as the surface layer, the middle layer is a single layer, and the back layer is 33 as knitting yarn. Only single circular knitted fabrics with a tengu structure with straight yarns of synthetic fiber multifilament yarns having no crimps below decitex and having 5,500 to 12,000 stitches per 6.45 cm ² using a sinker loop surface of the single knit fabric as adhesion surface with the intermediate layer, said surface layer, the average friction coefficient of the intermediate layer and the back surface layer stacked, back surface layer is from 0.05 to 0 .19.

The single circular knitted fabric has a soft texture because the fabric is composed of stitches and the connection of the constituent yarn A can move loosely as shown in FIG. Further, the single circular knitted fabric has a smooth structure with the surface (needle loop surface) having a gap between the stitches as shown in FIG. 1, and the back surface (sinker loop surface) has a stitch connecting portion as shown in FIG. The concavo-convex structure which becomes a convex part is exhibited. As will be described later, the back surface layer is formed of only a single circular knitted fabric with a tengu structure having a number of stitches per knitted fabric area of 6.45 cm ² of 5,500 to 12,000 .

In the three-layer laminate fabric of the present invention, the surface having a concavo-convex structure (sinker loop surface) , which is the back surface of a single knitted fabric, is laminated with an intermediate resin film. Therefore, since only the convex portions are bonded when laminated, the soft texture of the circular knitted fabric can be left.

In addition, the conventional general circular knitted fabric has poor physical properties with respect to a hook-and-loop fastener (easily caught by the hook-and-loop fastener). In order to improve that point, the fabric used for the back layer of the laminate fabric in the present invention is a single circular knitted fabric, and the number of stitches per knitted fabric area of 6.45 cm ² is 5,500 to 12,000. It is important to use one piece. The number of stitches per 6.45 cm ² is a value obtained by multiplying the number of wells per 2.54 cm and the number of courses per 2.54 cm. If there are few, it will become a coarse cloth with wide stitch intervals.

  That is, even though a single circular knitted fabric has a smooth surface, if the number of stitches is less than 5,500, the interval between the stitches becomes too wide, so that it is easily caught on a hook-and-loop fastener and the physical properties deteriorate. End up. If the number of stitches is increased, the interval between stitches becomes narrow and the physical properties against catching and the like are improved (it becomes difficult to catch). However, if the number is greater than 12,000, the basis weight is too heavy and too thick, giving the entire laminate fabric The effect will be greater.

The number of stitches per knitted fabric area of 6.45 cm ² is preferably in the range of 6,000 to 11,500, and more preferably in the range of 6,500 to 11,000.

  The number of wells per 2.54 cm is preferably more than 72. A larger number of both the number of wells and the number of courses results in smoother and better influences on physical properties, but the number of wells has a particular influence. Reducing the number of wells is not preferable because the stitches are stretched in the width direction to widen the stitches, the gap D is widened as shown in FIG. 3, and the surface has a concavo-convex structure. That is, it is not preferable that the surface has a concavo-convex structure, resulting in poor physical properties with respect to a hook-and-loop fastener and loss of smoothness.

  It is important that the knitting yarn constituting the single circular knitted fabric is a synthetic fiber multifilament yarn of 33 dtex or less. If the thickness exceeds 33 decitex, the basis weight is too heavy and too thick, and the effect on the entire laminate fabric is increased. The fineness of the knitting yarn is preferably 23 dtex or less and 4 dtex or more, and more preferably 17 dtex or less and 7 dtex or more.

  The single fiber fineness of the synthetic fiber multifilament yarn is preferably in the range of 0.4 to 10 dtex, and more preferably in the range of 1.2 to 8 dtex. When the single fiber fineness is 10 dtex or less, it is possible to obtain a laminate fabric having a softer back surface texture. If the single fiber fineness is less than 0.4 decitex, the yarn is too thin, resulting in poor physical properties against catching and wear.

  The synthetic fiber is not particularly limited, but is preferably a polyester fiber or a polyamide fiber from the viewpoint of strength, durability, workability, and cost.

The synthetic fiber multifilament yarn is a raw yarn that is a straight yarn that is not subjected to higher-order processing such as crimping or bulking . In particular, in order to make the lining difficult to get hooked by hook-and-loop fasteners and to have a smooth surface, it is preferable to use yarns that are hard to disperse single fibers and have good convergence properties, and it is important to use raw yarns that are straight yarns Is. By using raw silk, it is possible to further improve the physical properties against catching and wear, the ease of wearing and the ease of movement when used as clothing. In addition, the raw yarn which is a straight yarn is a concept including the thing which has the entanglement of the light entanglement grade given by the injection of a compressed air in order to give convergence property at the stage of a yarn production.

  Single circular knitted fabric can be finished to the desired number of stitches by selecting the knitting machine and setting the knitting conditions, knitting, and dyeing under conditions that match the settings of the number of wells and the number of courses.

The knitting machine is preferably knitted using a single circular knitting machine of 46 gauge or more, more preferably a single circular knitting machine of 60 gauge or more. When a knitting machine of less than 46 gauge is used, the desired number of wells and the number of courses cannot be obtained, or the stitch gap D shown in FIG. It is not preferable because a good single circular knitted fabric cannot be obtained. In consideration of the basis weight, thickness, low surface friction coefficient, and cost, it is important that the knitted structure is a tense structure.

  The dyeing process can be performed by a conventionally known dyeing method.

  The fabric used for the surface layer of the three-layer laminate fabric of the present invention is any one of a woven fabric, a knitted fabric, and a nonwoven fabric. Although the structure is not particularly limited, plain weaving, twill weaving, satin weaving, Nanako weaving, steep oblique weaving, weft double weaving, warp double weaving, etc. can be used, and weaving as weaving Flat knitting (Tengu), Kanoko knitting, rib knitting, double-sided knitting (smooth), pearl knitting, punch Rome knitting, Milan rib knitting, blister knitting, etc. Atlas knitting, half tricot knitting, double denvi knitting, satin knitting and the like can be used, and as the nonwoven fabric, short fiber nonwoven fabric, long fiber nonwoven fabric, dry nonwoven fabric, wet nonwoven fabric and the like can be used. In addition, the constituent material of the fabric used for the surface layer may be selected from natural fibers such as cotton and hemp, synthetic fibers such as polyester fibers and polyamide fibers according to the use for which the laminate fabric is used. it can. For example, when the three-layer laminate fabric of the present invention is used for mountaineering where importance is placed on strength, durability, lightness, etc., it is preferable to use a woven fabric composed of polyester fiber, polyamide fiber, etc. When it is used for sportswear in which importance is placed on performance, lightness, etc., it is preferable to use a knitted fabric composed of polyester fiber, polyamide fiber or the like. In addition, the fabric may be subjected to conventionally known water repellent treatment, antistatic treatment, or the like as necessary.

The middle layer of the three-layer laminate fabric of the present invention is a resin film forming a single layer, and various resin films known in the art can be used as the resin film. Examples of resin film materials include polyurethane resins, acrylic resins, polyvinyl chloride resins, polyester resins, polyethylene resins, polypropylene resins, fluorine-containing resins, polyamide resins, and polyimide resins. 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 in the range of 3~60g / m ^2, more preferably in the range of 3 to 50 g / m ^2.

  For example, when used for moisture-permeable and waterproof clothing, it is preferable to use a moisture-permeable and waterproof film made of polyurethane resin, polyester resin, fluorine-containing resin, or the like. 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 particle size of water vapor is about 0.4 nm and the particle size of rain and water is 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, a method of laminating a resin film and any one kind of outer fabric selected from woven fabric, knitted fabric, and nonwoven fabric and a backing that is a single circular knitted fabric includes a method of directly coating the outer fabric or the fabric of the lining, Film) and can be laminated using a conventionally known manufacturing method such as a laminating method in which the film is adhered to the fabric with an adhesive or the like.

  The direct coating method is to directly apply a resin according to the purpose in a uniform thin film form on one side of the fabric to form a film (film), by passing it through water to form a film and to dry the film. There is a dry type that turns into 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 film of a resin according to the purpose in advance and apply an adhesive thereon to laminate a fabric. 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 cures by reaction with heat or light can be used in addition to the thermoplastic resin adhesive. 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 three-layer laminate fabric of the present invention is used for moisture-permeable and waterproof clothing, one having high moisture permeability is preferable.

  The coverage with the adhesive is not particularly limited, but the higher the peel strength is. For example, when the three-layer laminate fabric of the present invention is used for moisture-permeable and waterproof clothing, there is no problem even with 100% covering of the entire surface if it is a highly moisture-permeable adhesive, but it is compatible with 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.

Using the above method, the surface layer employs a kind selected from the group of woven fabric, knitted fabric, and nonwoven fabric, the middle layer employs a resin film, and the back surface layer comprises synthetic fiber multifilament yarns of 33 dtex or less. 6. A single circular knitted fabric having 5,500 to 12,000 stitches per 45 cm ² is adopted and laminated into three layers as shown in FIG. 4 to obtain the three-layer laminate fabric of the present invention. it can.

  Furthermore, it is important that the average friction coefficient μ of the back layer of the three-layer laminate fabric of the present invention is in the range of 0.05 to 0.19, and particularly the average friction coefficient μ is 0.07 to 0.00. A range of 18 is more preferable. The average friction coefficient μ indicates the magnitude of friction, and the smaller the numerical value, the less the friction and the better the slip. By making the average coefficient of friction μ 0.19 or less, slipping is improved, and the lining characteristics of being easy to wear and easy to move can be demonstrated. Even if rubbed, it becomes hard to be damaged. On the other hand, if it is less than 0.05, the slipping is too good, and therefore, the workability is deteriorated such that parts are easily displaced during sewing, which is not preferable.

  Here, the average dynamic friction coefficient μ is a value obtained by measuring and averaging the dynamic friction coefficients in the vertical direction and the horizontal direction with a surface testing machine of a KES texture system. When clothing is used, it does not move in one direction, so the evaluation is based on the average value of the dynamic friction coefficients in the vertical and horizontal directions.

  In the three-layer laminate fabric of the present invention, the average surface roughness of the back layer is preferably 7 μm or less, more preferably 5 μm or less. The average surface roughness indicates a difference in the uneven structure on the surface of the fabric, and a larger numerical value indicates a difference in unevenness. If it exceeds 7 μm, there is too much difference in the concavo-convex structure on the surface, so that it is easily caught on a hook-and-loop fastener and the physical properties are deteriorated. Also, when you touch it with your hand, you will feel it is rough. The lower limit of the average surface roughness is about 0.8 μm.

  Here, the average surface roughness is a value obtained by measuring the surface roughness in the vertical direction and the horizontal direction with a surface testing machine of a KES texture system and averaging the measured values. In the case of clothing, it does not move in one direction, so evaluation is performed by obtaining an average value of surface roughness in the vertical and horizontal directions.

The single circular knitted fabric used in the three-layer laminate fabric of the present invention preferably has a cover factor (CF) in the range of 400 to 900, and more preferably in the range of 450 to 850. The cover factor can be calculated by the following formula.
CF = {√T × W} + {√T × C}
CF: Cover factor T: Fineness of the component yarn (decitex)
W: Number of wells per 2.54 cm length of fabric width C: Number of courses per 2.54 cm length of fabric length When the cover factor is less than 400, the knitted fabric density becomes too low. If the physical properties and slippage are deteriorated and the knitted fabric density exceeds 900, the knitted fabric density becomes too high, so that the weight per unit area is heavy and the influence on the entire laminate fabric is increased.

Three-layer laminate fabric of the present invention preferably has a total basis weight in the range of 50 to 150 g / m ^2, and more preferably in the range of 60~140g / m ^2. If it exceeds 150 g / m ² , it will be quite heavy when worn and uncomfortable, so it is often undesirable depending on the application. If it is less than 50 g / m ² , it is too light, so that the tear strength and the like are weakened, and it becomes easy to be damaged when it is made into clothing, which may be undesirable in terms of use.

  The three-layer laminate fabric of the present invention preferably has a thickness in the range of 0.08 to 0.6 mm, and more preferably in the range of 0.1 to 0.5 mm. If it exceeds 0.6 mm, it is too thick, and it becomes difficult to move when worn as a garment. If it is less than 0.08 mm, it is too thin, and physical properties such as tear strength are lowered, and it is not preferable because it is easily damaged when it is made into clothes.

  In the three-layer laminate fabric of the present invention, the average deviation of the friction coefficient of the back layer is preferably 0.027 or less, and more preferably 0.023 or less. The average deviation of the friction coefficient indicates the fluctuation of the friction coefficient, and the larger the value, the more the roughness becomes felt. When the average deviation of the coefficient of friction exceeds 0.027, the roughness becomes too large, which may make the user feel uncomfortable when touched or worn.

  Here, the average deviation of the friction coefficient is a value obtained by measuring and averaging the average deviation of the friction coefficient in the vertical direction and the horizontal direction with a surface testing machine of the KES texture system. When clothing is used, it does not move in one direction, so evaluation is made by averaging the average deviations of the friction coefficients in the vertical and horizontal directions.

Three-layer laminate fabric of the present invention preferably has an average flexural rigidity in the range of 0.8~18gf · cm ² / cm, and more preferably in the range of 0.1~15gf · cm ² / cm . The average bending stiffness indicates the bending hardness of the fabric, and the smaller the value, the softer the fabric. If the average bending stiffness exceeds 18 gf · cm ² / cm, the fabric becomes too hard, and thus it becomes difficult to move when worn as clothing. If it is less than 0.8 gf · cm ² / cm, the fabric becomes too soft, so that the strength such as tearing or rupture is lowered, and it becomes unsuitable for clothing.

  Here, the average bending stiffness is a value obtained by measuring and averaging the bending stiffness in the longitudinal direction and the transverse direction with a pure bending tester of the KES texture system. In the case of clothing, since the bending force in one direction does not work, the average value of the bending rigidity in the vertical direction and the horizontal direction is evaluated.

  Hereinafter, although it demonstrates in more detail based on an Example, this invention is not limited to these Examples. In addition, each physical property in an Example is measured with the following method.

(1) Number of stitches per 6.45 cm ² The number of stitches was calculated by multiplying the number of wells per 2.54 cm of the knitted fabric and the number of courses. 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) Average friction coefficient Surface test machine KES-FB4 (manufactured by Kato Tech Co., Ltd.) based on the KES texture system
Was measured. A 20 × 20 cm test piece was applied with a tension of 20 gf / cm in an environment of 20 ° C. × 65% RH, and a 0.5 mmφ piano wire was wound on a 10 × 5 × 5 mm contact at 50 gf. The sample is pressed and moved horizontally at a constant speed of 0.1 cm / second, and the coefficient of friction (MIU) is measured. The vertical and horizontal friction coefficients (MIU) of the fabric were measured by the above-described method, and an average value of 10 times in total of 5 times was calculated as an average friction coefficient.

(3) Average surface roughness Based on the KES texture system, surface testing machine KES-FB4 (manufactured by Kato Tech Co., Ltd.)
Was measured. A 20 × 20 cm test piece is attached with a tension of 20 gf / cm in an environment of 20 ° C. × 65% RH, and a 0.5 mmφ piano wire is folded to a width of 5 mm. The surface roughness (SMD) is measured by moving horizontally at a constant speed of 0.1 cm / sec. The vertical and horizontal surface roughness (SMD) of the fabric was measured by the above method, and an average value of 10 times in total was calculated for each 5 times to obtain an average surface roughness (μm).

(4) Average deviation of friction coefficient Based on the KES texture system, surface testing machine KES-FB4 (manufactured by Kato Tech Co., Ltd.)
Was measured. A 20 × 20 cm test piece was applied with a tension of 20 gf / cm in an environment of 20 ° C. × 65% RH, and a 0.5 mmφ piano wire was wound on a 10 × 5 × 5 mm contact at 50 gf. The sample is pressed against the sample and moved horizontally at a constant speed of 0.1 cm / second, and the average deviation (MMD) of the coefficient of friction is measured. The average deviation (MMD) of the vertical and horizontal friction coefficients of the fabric was measured by the above method, and an average value of 10 times in total was calculated for each 5 times to obtain the average deviation of the friction coefficient.

(5) Average bending rigidity Based on the KES texture system, it measured using the pure bending tester KES-FB2 (made by Kato Tech Co., Ltd.). When a 20 × 20 cm test piece is held at an effective sample length of 20 × 1 cm in an environment of 20 ° C. × 65% RH and bent under the condition of a maximum curvature of ± 2.5 cm ⁻¹ , the curvature is ± 0.5 to A value obtained by dividing the change in bending moment per unit width of ± 1.5 cm ^{−1 by} the curvature was measured. The longitudinal and lateral bending rigidity of the fabric was measured by the above method, and an average value of 10 times in total was calculated for each 5 times to obtain an average bending rigidity (gf · cm ² / cm).

(6) Mass per unit area Mass (g / m ² ) per unit area of the test piece was measured based on JIS L 1096.

(7) Thickness Based on JIS L 1096, the thickness of the test piece was measured. For the measurement, a dial thickness gauge (“Model H-2.4N” manufactured by Ozaki Mfg. Co., Ltd.) was used.

(8) Durability against hook-and-loop fastener The hook side of the hook-and-loop fastener ("NEW ECO MAGIC" manufactured by Kuraray Fastening Co., Ltd.) facing the test stand side of the friction tester II type friction element described in JIS L 0849 The test piece base was mounted with the back layer (skin surface layer) of the laminate fabric facing the friction element side. However, the hook-and-loop fastener attached to the friction element was attached so that the hook row and the reciprocating direction were parallel. Moreover, when the test piece had elasticity, it bonded together to the test stand using the double-sided tape.

In this state, a load of 2N was applied to the friction element, and each of the three pieces in the warp direction and the horizontal direction was rubbed 100 times. The state of the rubbed part of the test piece was evaluated in the following four stages, the average values in the vertical and horizontal directions were calculated, and the numbers after the decimal point were rounded off.
<< Evaluation Criteria >> Grade 1: 10% or more of the parts where the area of the fabric structure is rubbed is rubbed
Grade 2: Less than 10% of the rubbed area of the fabric structure
3rd grade: The fabric structure is not broken, but there is some fluff
Level 4: No change

(9) Texture In the evaluation of the texture, 10 men and women evaluated the touch feeling of the back surface of the laminate fabric in the following four stages.
≪Evaluation criteria≫ 1st grade: Uncomfortable to touch
Second grade: The touch is rather bad
3rd grade: just feel better
4th grade: comfortable to touch

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

Example 1
For the surface layer, a woven fabric with a warp and weft of 56 dtex and a plain weave fabric (weight per unit: 54 g / m ² ) made of 24 filament nylon raw yarn (straight yarn) and water-repellent treatment with a fluorine-based water repellent. Prepared.

As an intermediate layer, a hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was prepared.

  The hydrophilic non-porous resin film made of the polyurethane resin was adhered to one side of the woven fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminated fabric.

Furthermore, a tengu using a 17 dtex, 7-filament nylon raw yarn prepared for the backside layer by gravure printing with a gravure coater with a polyurethane adhesive on the film surface of the two-layer laminated fabric to a coverage of 45%. The circular knitted fabric of the structure was bonded to obtain a three-layer laminate fabric (weight per unit: 101 g / m ² , thickness: 0.19 mm) of the present invention.

The single circular knitted fabric used for the back layer is knitted using a 60 gauge 30 inch knitting machine, and is 78 wells / 2.54 cm, 86 courses / 2.54 cm, and the number of stitches is 6, using a normal dyeing method. The finished product was 708 pieces / 6.45 cm ² , and the cover factor was 676.

The friction coefficient of the back layer of this three-layer laminate fabric was 0.127, and the average surface roughness of the back layer was 2.37 μm. Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.

Example 2
For the surface layer, a plain fabric woven fabric (weight per unit: 38 g / m ² ) composed of nylon raw yarns of 22 decitex and 20 filaments for both warp and weft was prepared as a woven fabric having a water repellent treatment with a fluorine-based water repellent. .

As an intermediate layer, a hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was prepared.

  The hydrophilic non-porous resin film made of the polyurethane resin was adhered to one side of the woven fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminated fabric.

Furthermore, a tengu using 8 decitex, 5 filament nylon raw yarn prepared for the back layer was printed by gravure printing with a gravure coater with a polyurethane adhesive on the film surface of the two-layer laminated fabric to a coverage of 45%. The circular knitted fabric of the structure was bonded to obtain a three-layer laminate fabric (weight per unit: 74 g / m ² , thickness: 0.14 mm) of the present invention.

The single circular knitted fabric used for the back layer is knitted using a 60 gauge 30 inch knitting machine, and is 82 wells / 2.54 cm, 91 courses / 2.54 cm, number of stitches 7 by a normal dyeing method. It was finished to 462 pieces / 6.45 cm ² , and the cover factor was 489.

  The friction coefficient of the back surface of this three-layer laminate fabric was 0.159, and the average surface roughness of the back layer was 4.61 μm. Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.

Example 3
For the surface layer, a woven fabric having a plain weave fabric (weight per unit: 40 g / m ² ) made of nylon raw yarn of 33 decitex and 34 filaments for both warp and weft was prepared with a water repellent treatment with a fluorine-based water repellent. .

As an intermediate layer, a hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was prepared.

  The hydrophilic non-porous resin film made of the polyurethane resin was adhered to one side of the woven fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminated fabric.

Furthermore, a tengu using 22 dtex, 12 filament raw polyester yarn prepared for the back layer by gravure printing with a gravure coater with a polyurethane adhesive on the film surface of the two-ply laminated fabric so that the coverage is 45%. The circular knitted fabric of the structure was bonded to obtain a three-layer laminate fabric (weight per unit: 99 g / m ² , thickness: 0.2 mm) of the present invention.

The single circular knitted fabric used for the back layer is knitted using a 46 gauge 30 inch knitting machine, and is 81 wells / 2.54 cm, 91 courses / 2.54 cm, 7 stitches, using a normal dyeing method. It was finished to 371 pieces / 6.45 cm ² and the cover factor was 807.

  The friction coefficient of the back layer of this three-layer laminate fabric was 0.148, and the average surface roughness of the back layer was 2.64 μm. Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.

Example 4
For the surface layer, a knitted fabric that has been subjected to a water repellent treatment with a fluorine-based water repellent on a smooth knitted fabric (weight per unit: 56 g / m ² ) composed of 22 decitex, 24 filament polyester false twisted crimped yarn Got ready.

As an intermediate layer, a hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was prepared.

  A hydrophilic non-porous resin film made of the polyurethane resin was adhered to one side of the knitted fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminated fabric.

Further, a tengu using 22 dtex, 12 filament polyester raw yarn prepared for the back layer by gravure printing with a gravure coater with a polyurethane adhesive on the film surface of the two-layer laminated fabric to a coverage of 45%. The circular knitted fabric of the structure was bonded to obtain a three-layer laminate fabric (weight per unit: 117 g / m ² , thickness: 0.34 mm) of the present invention.

The single circular knitted fabric used for the back layer was knitted using a 46 gauge 30 inch knitting machine, and 84 wells / 2.54 cm, 95 courses / 2.54 cm, 7 stitches, by a normal dyeing method. It was finished to 980 pieces / 6.45 cm ² and the cover factor was 840.

  The friction coefficient of the back layer of this three-layer laminate fabric was 0.168, and the average surface roughness of the back layer was 1.76 μm. Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.

Comparative Example 1
For the surface layer, a plain woven fabric (weight per unit: 38 g / m ² ) composed of nylon raw yarn of 22 dtex 20 filaments for both warp and weft was prepared.

As an intermediate layer, a hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was prepared.

  The hydrophilic non-porous resin film made of the polyurethane resin was adhered to one side of the woven fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminated fabric.

Furthermore, a 22 decitex, 24 filament polyester false twist crimp prepared by gravure printing with a gravure coater with a polyurethane adhesive on the film surface of the two-layer laminated fabric so that the coverage is 45%. A circular knitted fabric with a tengu structure using yarn was bonded to obtain a three-layer laminate fabric (weight per unit: 94 g / m ² , thickness: 0.26 mm).

The single circular knitted fabric used for the back layer is knitted using a 46 gauge 30 inch knitting machine, and is 62 wells / 2.54 cm, 84 courses / 2.54 cm, and 5208 stitches by a normal dyeing method. /6.45 cm ² and the cover factor was 685.

  The friction coefficient of the back layer of this three-layer laminate fabric was 0.239, and the average surface roughness of the back layer was 5.27 μm. Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.

Comparative Example 2
For the surface layer, a woven fabric obtained by water-repellent treatment with a fluorine-based water repellent on a plain weave fabric (weight per unit: 54 g / m ² ) composed of 56 dtex and 24 filament nylon raw yarn for both surface and weft was prepared.

As an intermediate layer, a hydrophilic non-porous resin film (weight per unit area: 13 g / m ² ) made of polyurethane resin was prepared.

  The hydrophilic non-porous resin film made of the polyurethane resin was adhered to one side of the woven fabric using a polyurethane adhesive by a laminating method to obtain a two-layer laminated fabric.

Furthermore, 44 decitex, 34 filament nylon false twisted crimps prepared for the back layer by gravure printing with a gravure coater with a polyurethane adhesive on the film surface of the two-layer laminated fabric to a coverage of 45%. A circular knitted fabric with a tengu structure using yarn was bonded to obtain a three-layer laminate fabric (weight per unit: 142 g / m ² , thickness: 0.42 mm). The single circular knitted fabric used for the back layer is knitted using a 40 gauge 30 inch knitting machine, 64 wells / 2.54 cm, 80 courses / 2.54 cm, and 5120 stitches by a normal dyeing method. /6.45 cm ² and the cover factor was 955.

  The friction coefficient of the back layer of this three-layer laminate fabric was 0.248, and the average surface roughness of the back layer was 5.18 μm. Tables 1 and 2 show the evaluation results and the like of this three-layer laminate fabric.

Comparative Example 3
For the surface layer, a woven fabric obtained by subjecting a plain weave fabric (weight per unit: 38 g / m ² ) made of nylon raw yarn of 22 decitex and 20 filaments for both warp and weft to a water repellent treatment with a fluorine-based water repellent was prepared.

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

Furthermore, 8 decitex, 5 filament nylon false twisting crimp prepared for the back layer by gravure printing with a gravure coater with 45% coverage of polyurethane adhesive on the film surface of the two-layer laminated fabric A double knitted warp knitted fabric using yarn was bonded to obtain a three-layer laminate fabric (weight per unit: 79 g / m ² , thickness: 0.15 mm). The warp knitted fabric used for the back layer was knitted using a tricot knitting machine, and 45 wells / 2.54 cm, 64 courses / 2.54 cm, number of stitches 2880 / 6.45 cm ² by a normal dyeing method. The cover factor was 308.

  The friction coefficient of the back surface of this three-layer laminate fabric was 0.205, and the average surface roughness of the back layer was 10.46 μm. The evaluation results of this three-layer laminate fabric are also shown in Tables 1 and 2.

  The three-layer laminate fabric of the present invention is excellent in wear resistance and has a good texture on the front and back surfaces, so it can be used for various apparel applications such as rain gear, sportswear, work clothes, outdoor wear, and leisure wear. Can do.

  In particular, it can be suitably used in fields such as tents, bags, sleeping bags, etc., except for clothing applications.

1: Surface layer of laminated fabric 2: Middle layer of laminated fabric 3: Back layer of laminated fabric A: Constituent yarn of knitted fabric D: Gap between stitches

Claims (5)

It is a resin film that uses a kind selected from the group consisting of woven fabric, knitted fabric, and nonwoven fabric as the surface layer, and the intermediate layer is a resin film having a single layer, and the back layer is a synthetic film that does not have a crimp of 33 dtex or less as the knitting yarn. Only a single circular knitted fabric with a ten-fold structure in which straight yarns of fiber multifilament yarns are used and the number of stitches per 6.45 cm ² is 5,500 to 12,000 is used. the loop surface as a bonding surface with the intermediate layer, said surface layer, said intermediate layer and back surface layer stacked, the average friction coefficient of the back surface layer is characterized by a 0.05 to 0.19 three Layer laminate fabric.   The three-layer laminate fabric according to claim 1, wherein an average surface roughness of a back layer of the three-layer laminate fabric is 7 µm or less.   The three-layer laminate fabric according to claim 1 or 2, wherein a cover factor (CF) of the single circular knitted fabric is in a range of 400 to 900. The three-layer laminate fabric weight per unit area, the three-layer laminate fabric according to claim 1, characterized in that a 50 to 150 g / m ^2.   The three-layer laminate fabric according to any one of claims 1 to 4, wherein a thickness of the three-layer laminate fabric is 0.08 to 0.6 mm.

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