JP2019166804A - Composite laminate, and method of manufacturing the same - Google Patents

Abstract

To provide a composite laminate having an appearance making existence of an elastic fiber inconspicuous and excellent in sensuousness, having regularity small in disorder, and having a high elongation gathering capable of smoothly extending and shrinking over a wide size range, and a method of manufacturing the same.SOLUTION: A composite laminate has: a plurality of elastic fibers parallel disposed between 2 fabrics in one direction; and resins parallel arranged in one direction intersecting the elastic fibers, and bonding the 2 fabrics with the elastic fibers, where the 2 fabrics separate from the elastic fibers between places where the resins adjacent each other in a longitudinal direction intersect the elastic fibers, the width X of the resins in one direction is 0.2 mm-4 mm, the clearance Y of a minimum distance between the resins is 3 mm or more, the relation between X and Y satisfies 10X≥Y≥2X, the ratio of a fineness of the elastic fiber to a fineness of a fiber constituting the fabric is 0.5-400, the bending resistance of the fabric in a longitudinal direction is 10 mm-50 mm, and the elongation range in a composite laminate-completed state is 2.5 times-5 times. Also provided is a method of manufacturing the same.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a composite laminate and a method for producing the same, and more specifically, a stretchable composite laminate that is in close contact with the skin, specifically underwear, sportswear, or for children and adults. The present invention relates to a composite laminate having high stretchability, which requires a beautiful appearance and can be suitably used over a wide size range in applications such as sanitary materials such as disposable diapers and sanitary products, and a method for producing the same.

  Conventionally, in applications that adhere to the skin such as sanitary materials such as disposable diapers, stretchable materials have been used in order to improve the feeling of wearing and the wearing stability. For example, in a paper diaper, a composite laminate in which elastic fibers are inserted between laminated nonwoven fabrics is used to improve the fit with the body such as underbody, abdomen, waist, etc., or to prevent urine leakage. Have been used.

  Such a composite laminate having elasticity is often manufactured by laminating a plurality of elastic fibers in a predetermined draft and laminating with a plurality of sheet-like fabrics such as a nonwoven fabric while maintaining the state. Many of the body forms have hot melt resin extending in the direction parallel to the elastic fibers in the sheet-like fabric such as non-woven fabric, and such a composite laminate is frequently used for paper diapers and is the mainstream gather member. (For example, Patent Document 1).

  Further, when forming the gather member, a plurality of elastic elastic members (elastic fibers) are arranged between sheet-like fabrics such as non-woven fabrics, and the heat-bonding fibers are extended in the direction intersecting the elastic elastic members, Gather member (for example, patent document 2) which fixed the elastic expansion-contraction member between the sheet-like fabrics by the heat-seal | fusing by the adhering fiber, or hot melt adhesive instead of the heat-sealable fiber is applied in a predetermined pattern in a predetermined range Gather which is arranged in a striped pattern in a direction intersecting the elastic elastic member by a so-called application method called a design coat, and the elastic elastic member is intermittently fixed to the fabric in the longitudinal direction via the hot melt adhesive A member (for example, Patent Document 3) is known. Furthermore, regarding a design coat for forming a hot melt adhesive coating layer, a design coat coating system and a coating method using a design roller having an uneven plate are also known (for example, Patent Document 4).

Japanese Patent Laying-Open No. 2005-320636 JP2013-202056A JP 2017-185336 A JP 2014-076077 A

  However, in any of these composite laminates, while the tactile sensation function has been improved in recent years, the appearance aesthetics and the stretchable function have not been fully satisfactory. In other words, it is insufficient for use in advanced paper diaper products that can be used as underwear, and even apparel products such as sportswear. The reason is that the presence of the elastic fiber in the composite laminate can be clearly discriminated visually. In other words, when visually observing the appearance, the elastic fiber in the composite laminate cannot be seen or the presence of the elastic fiber cannot be confirmed, or the elastic fiber is very difficult to see or its existence is very difficult to confirm. However, the properties of the composite laminate relating to visibility that can satisfy such requirements are insufficient. In addition, when the nonwoven fabric is reduced in weight, giving priority to the tactile sensation function or the like, the above-mentioned phenomenon of insufficient required characteristics becomes more remarkable.

  The appearance and aesthetics of the composite laminate are the most important factors in developing advanced disposable diaper products and clothing. The first step in recognizing the satisfaction of appearance and aesthetics for diapers from its looks is the regularity of the folds of the composite laminate and the visibility of the presence of elastic fibers inside the composite laminate. If it is irregular or the presence of elastic fibers can be clearly discerned visually, it is considered that the commercial value of the diaper resulting from them decreases. In particular, when the composite laminate is stretched, the elastic fibers at the time of stretching in the clothing fabric are exposed (blurring phenomenon). Stand out and make the appearance unsatisfactory. And even if it tries to give the designability by dyeing | staining or a textile printing process in order to improve this, an elastic fiber floats up in stripe shape or a stripe form, and makes it difficult to express the intended color and design.

  In this way, the aesthetics are not excluded in the conventional technology, and even if this technology is applied as it is, the required functionality and the advancement of aesthetics cannot be achieved at the same time, and an excellent fit when worn. Thus, it was not possible to obtain a composite laminate having a uniform appearance, having smooth and highly regular wrinkles, and in which the presence of elastic fibers is inconspicuous.

  In addition, with regard to the gathered portion, the gathered portion having a highly regular ridge that is hardly disturbed by the buckling of the heel and the like exhibits a homogeneous appearance, so that it can contribute to improving the aesthetics of the appearance. Since it becomes stretchable, a highly stretched gather part can be obtained, and it can be smoothly stretched over a wide size range, and a more desirable composite laminate having a wide size application range can be obtained.

  Therefore, the present invention can achieve both the aesthetics and functionality required for advanced paper diaper products and clothing, and has a particularly excellent appearance with aesthetics in which the presence of elastic fibers is not conspicuous, and high rules with little disturbance. It has a high stretch heel that can be extended and contracted smoothly over a wide size range, and can further improve the aesthetics of the appearance, and can be further improved in wearability, especially in the size application range. It aims at providing a laminated body and its manufacturing method.

In order to solve the above problems, the composite laminate according to the present invention is
Between two fabrics,
A plurality of elastic fibers arranged in parallel in one direction;
A composite laminate comprising a plurality of the fabrics arranged side by side in one direction intersecting with the elastic fibers and a resin that joins the elastic fibers and the elastic fibers,
The two fabrics and the elastic fibers are spaced apart from each other where the elastic fibers intersect in the longitudinal direction of the elastic fibers,
The width X of the resin extending in one direction is 0.2 mm to 4 mm, the distance Y of the shortest distance between the arranged resins is 3 mm or more, and 10X ≧ Y ≧ 2X,
The ratio of the fineness of the elastic fiber to the fineness of the fiber constituting the fabric is 0.5 or more and 400 or less,
The bending resistance of the fabric in the longitudinal direction (MD direction) is in the range of 10 mm to 50 mm, and
The stretched range of the elastic fiber composite laminate is in the range of 2.5 to 5 times.

  In such a composite laminated body according to the present invention, a so-called design coat or the like is applied to a predetermined region with a necessary amount of resin in a predetermined direction with high accuracy, or by ultrasonic waves or heating. The elastic fibers are intermittently bonded to the cloth on both sides in the longitudinal direction in the longitudinal direction of the elastic fibers in a desired form through the bonding resin generated from the cloth itself and the elastic fibers themselves. The structure in which the two fabrics and the elastic fiber are separated from each other in the longitudinal direction where the resin and the elastic fiber intersect with each other is configured with high regularity and has a high degree of expansion and contraction function. It becomes the composite laminated body provided with the gather part which has the wrinkles which have the fitting property and smooth and high regularity. The width X of the resin extending in one direction (in the present invention, the width X of the resin refers to the width at the maximum extension) is 0.2 mm to 4 mm, and the distance Y between the shortest distances between the resins arranged side by side Is not less than 3 mm and in the range of 10X ≧ Y ≧ 2X, it has excellent appearance aesthetics and can have a highly stretched heel that is highly regular and can be extended and contracted smoothly over a wide size range. Thus, a composite laminate having excellent wearability, in particular, a wide range of sizes can be obtained. In particular, in the composite laminate according to the present invention, in order to form a heel having high regularity in the gathered portion and excellent fit when worn, the bending resistance of the fabric in the longitudinal direction (MD direction) is high. The configuration is in the range of 10 mm to 50 mm, and the stretched range of the elastic fiber composite laminate is in the range of 2.5 to 5 times. Furthermore, in order to achieve excellent appearance aesthetics, the composite laminate according to the present invention adopts a configuration in which the ratio of the fineness of the elastic fiber to the fineness of the fiber constituting the fabric is 0.5 or more and 400 or less. is doing. With these configurations, in the present invention, a high-strength ridge that has an appearance with excellent aesthetics in which the presence of elastic fibers is inconspicuous, has high regularity with little disturbance, and can be stretched smoothly over a wide size range. A composite laminate having is realized.

  In the composite laminate according to the present invention as described above, the fiber fineness of the surface layer of the fabric is preferably in the range of 0.3 dtex to 1.5 dtex. More preferably, the fiber fineness of the surface layer of the fabric is in the range of 0.3 dtex to 1.0 dtex. With the configuration in which the ratio of the fineness of the elastic fiber to the fineness of the fiber constituting the fabric is 0.5 or more and 400 or less, the presence of the elastic fiber cannot be easily recognized visually, and the appearance quality is excellent. This effect is prominent when the fiber fineness of the surface layer of the fabric is in the range of 0.3 dtex to 1.5 dtex, and more prominent when it is in the range of 0.3 dtex to 1.0 dtex.

In the composite laminate according to the present invention, the outer surface of the fabric is spectroscopically measured from the outside of the composite laminate in the direction intersecting the elastic fibers with the composite laminate extended to the maximum in the extending direction of the elastic fibers. when began to colorimetry with a color meter, the ^{L *} value at the point ^{of L *} value indicates a maximum value, ^{a *} value, ^{b *} value ^{(L * 1, a * 1} , b * 1) and the ^{L *} value The color difference variation ΔE ^* v defined by the following equation using the L ^* value, a ^* value, and b ^* value (L ^* 2, a ^* 2, b ^* 2) at the point where indicates the minimum value is 1.0 or less It is preferable that
^{ΔE * v = √ [(L} * 1-L * 2) 2 + (a * 1-a * 2) 2 + (b * 1-b * 2) 2]

This employs the color difference variation ΔE ^* v as an evaluation measure of the difficulty of viewing the elastic fiber, and defines that the color difference variation ΔE ^* v is 1.0 or less. This color difference variation ΔE ^* v is measured with a spectrocolorimeter in the direction in which the outer surface of the fabric intersects the elastic fiber from the outside of the composite laminate with the composite laminate stretched to the maximum in the extending direction of the elastic fiber. This is expressed by the above equation and indicates the degree of variation in color difference in the colorimetric direction. When the fabric and elastic fiber are of the same color system, the color difference variation ΔE ^* v is particularly affected by the degree of change in the L ^* value indicating the brightness, thereby confirming whether the elastic fiber is easily visible and visible. Ease and difficulty are affected. As the color difference variation ΔE ^* v is larger, the change in the color difference at the intersection with the elastic fiber is larger. Therefore, it is easier to see the elastic fiber and to confirm the presence of the elastic fiber in appearance. When the color difference variation ΔE ^* v is 1.0 or less, the elastic fiber cannot be seen or the presence of the elastic fiber cannot be confirmed, or the elastic fiber is very difficult to see or its existence is very difficult to confirm. The required characteristics will be met.

  Moreover, in the composite laminated body which concerns on this invention, it is preferable that the fineness of an elastic fiber exists in the range of 10 dtex-300 dtex. By making the fineness of the elastic fiber within this range, it becomes possible to carry out the production of the composite laminate smoothly without any trouble.

  Moreover, in the composite laminated body which concerns on this invention, it is preferable that the said fabric is manufactured only by the spun bond method. Thereby, it becomes easy to obtain excellent characteristics in the evaluation of the buckling property of the heel described later.

  Moreover, in the composite laminated body which concerns on this invention, it is preferable that the thickness of the composite laminated body in the location where the said resin extended in one direction and the said elastic fiber cross | intersect is 0.1 mm or more and 2.0 mm or less. . When smaller than 0.1 mm, the presence of elastic fibers in the composite laminate may be visually determined, and when the composite laminate is stretched, the presence of elastic fibers can be more significantly determined. The appearance and aesthetics of the composite laminate may be reduced. If it is larger than 2.0 mm, the formed heel may be easily buckled, and the fit of the garment and the feel of the heel with smooth and regularity may be unsatisfactory.

  And it is preferable that the maximum value of the thickness of the composite laminate between the elastic fiber adjacent to the longitudinal direction of the elastic fiber and the portion where the elastic fiber intersects is 1 mm or more and 20 mm or less. More preferably, it is 2 mm or more and 10 mm or less. If it is smaller than 1 mm, the presence of elastic fibers in the stretched composite laminate may be clearly discernable visually, and if the composite laminate is stretched, the presence of elastic fibers can be discriminated more significantly. The appearance and aesthetics of the composite laminate may be deteriorated. When it is larger than 20 mm, the formed heel may be easily buckled, and the fit of the garment and the smooth and regular feel of the heel may be unsatisfactory.

  Moreover, in the composite laminated body which concerns on this invention, it is preferable that the heat softening point of the said elastic fiber is 100 degreeC or more and 240 degrees C or less. As a result, the bonding with the design-coated resin can be easily performed.

  Moreover, in the composite laminated body which concerns on this invention, it is preferable that the said resin extended in one direction contains the component same as the structural component of the said fabric and / or the said elastic fiber. This facilitates the bonding with the design-coated resin.

  This invention is a manufacturing method of the above composite laminated bodies, Comprising: It has the process of inserting and arrange | positioning several elastic fiber in parallel in one direction between two fabrics, The present invention also provides a method for producing a composite laminate, wherein the elastic fiber has an extension range of 2.5 to 5.5 times when inserted.

  According to the present invention, it is possible to achieve both the stretch functionality and aesthetics required for clothing and advanced paper diaper products, and in particular, it has an appearance that is excellent in aesthetics where the presence of elastic fibers is inconspicuous and is less disturbed. It has high regularity and has a highly stretchable heel that can be expanded and contracted smoothly over a wide size range, further improving the appearance aesthetics, and excellent wearability, especially a composite that can expand the range of size application A laminate can be provided.

It is the external appearance photograph which image | photographed an example of the test piece of the composite laminated body which concerns on this invention from the substantially planar direction. FIG. 2 is an appearance photograph obtained by photographing the test piece of the composite laminate of FIG. 1 from a substantially cross-sectional direction, where A indicates a thickness at a location where a resin extending in one direction and an elastic fiber intersect, and B is extending in one direction. The measurement location of the maximum value of the thickness between the locations where the resin and the elastic fiber intersect is shown. FIG. 2 is an external view photograph taken from a substantially planar direction showing a state in the middle of stretching when the test piece of the composite laminate of FIG. 1 is stretched by hand in the extending direction of the elastic fiber. FIG. 4 is an external view photograph taken from a substantially planar direction showing a state in which the test piece of the composite laminate of FIG.

Hereinafter, embodiments of the present invention will be described in detail.
First, FIG. 1 illustrates an external appearance photograph taken from a substantially planar direction of a typical example of a test piece of a composite laminate according to the present invention. FIG. 2 shows a photograph of the appearance of the test specimen of the composite laminate of FIG. 1 taken from a substantially cross-sectional direction, and A in the figure shows the thickness at the point where the resin extending in one direction and the elastic fiber intersect. , B indicates the measurement location of the maximum value of the thickness between the locations where the resin extending in one direction and the elastic fiber intersect. FIG. 3 illustrates an appearance photograph taken from a substantially planar direction, showing a state in the middle of stretching when the test piece of the composite laminate of FIG. 1 is stretched by hand in the direction in which the elastic fiber extends. FIG. 4 illustrates an appearance photograph taken from a substantially planar direction, showing a state in which the test piece of the composite laminate of FIG. 3 is extended to the maximum in the same direction.

  The composite laminate in the present invention has elastic fibers made of, for example, polyurethane elastic yarns arranged in parallel in one direction between two fabrics. The elastic fibers are arranged in a linear shape or a curved shape or a combination thereof, and are sandwiched between fabrics.

  In the composite laminated body in this invention, it has resin extended in one direction arranged in multiple numbers in the direction which cross | intersects an elastic fiber. That is, the resin is arranged in a direction that intersects the direction in which the elastic fiber is inserted. This resin is a resin for bonding two pieces of fabric to elastic fibers, and is a bonding resin that is accurately applied to a predetermined region in a predetermined direction by a so-called design coat. Alternatively, a bonding resin generated from the fabric itself or the elastic fiber itself (in particular, the fabric itself) by ultrasonic waves or heating may be used. The two fabrics and the elastic fiber are separated from each other between the portions where the adjacent resin and the elastic fiber intersect in the longitudinal direction of the elastic fiber. In the above, extending in one direction means that the resin is linear and is disposed in one direction as a whole. As the linear form, any of a linear form, a curved form, or a combination thereof can be adopted. Arranging in one direction as a whole means arranging such a linear form within a range of parallel lines within a predetermined width, and the direction in one direction is the direction of such virtual parallel lines. The direction. The angle at which the elastic fiber and the resin extending in one direction intersect is not particularly limited, but is preferably within a range of 90 ± 20 °, more preferably within a range of 90 ± 10 °, and more preferably 90 ± 5 °. If it is in the range, it is more preferable.

  In the composite laminate in the present invention, each fabric and the elastic fiber are separated from each other between the elastic fiber and the resin extending in one direction adjacent to each other in the longitudinal direction of the elastic fiber.

  The thickness between the resin and the elastic fiber extending in one direction is preferably 0.1 mm or more and 2.0 mm or less, and more preferably 0.2 mm or more and 2.0 mm or less. When smaller than 0.1 mm, the presence of elastic fibers in the composite laminate may be visually determined, and when the composite laminate is stretched, the presence of elastic fibers can be more significantly determined. The appearance and aesthetics of the composite laminate may be reduced. If it is larger than 2.0 mm, the formed heel may tend to bend, and the fit when worn and the feel of the heel with smooth and regularity may be unsatisfactory.

  And between the said places adjacent to the longitudinal direction of an elastic fiber, it is preferable that the maximum value of the thickness is 1 mm or more and 20 mm or less, More preferably, it is 2 mm or more and 10 mm or less. If it is smaller than 1 mm, the presence of elastic fibers in the stretched composite laminate may be clearly discernable visually, and if the composite laminate is stretched, the presence of elastic fibers can be discriminated more significantly. The appearance and aesthetics of the composite laminate may be deteriorated. If it is larger than 20 mm, the formed heel may tend to bend, and the fit when worn and the feel of the heel with smooth and regularity may be unsatisfactory.

  The width X of the resin extending in one direction is preferably 0.2 mm or more and 4 mm or less at the maximum extension, and more preferably 0.4 mm or more and 3 mm or less. If it is smaller than 0.2 mm, the elastic fibers in the composite laminate are easy to move, and when the expansion and contraction are repeated, the uniformity of wrinkles is reduced, or adjacent elastic fibers are close to each other, and the presence can be visually determined. In some cases, the appearance and aesthetics of the composite laminate may be reduced. If the thickness is larger than 4 mm, the presence of elastic fibers may be noticeable in a streak shape or a stripe shape when the composite laminate is viewed with transmitted light. Further, the elongation of the composite laminate may be reduced, and the placement size may be increased, or the fit when worn and the smooth and regular feel of the heel may be unsatisfactory.

  And especially as for the space | interval of the resin extended to one direction, it is preferable that the space | interval Y of the shortest distance between the arranged resin is 3 mm or more. If the distance Y between the shortest distances between the resins is smaller than 3 mm, it becomes difficult to appropriately form the wrinkles by the cloth between the resins.

  Furthermore, in the composite laminated body in this invention, said Y exists in the range of 10X> = Y> = 2X. That is, the width X of the resin extending in one direction is 0.2 mm to 4 mm, the distance Y of the shortest distance between the resins arranged side by side is 3 mm or more, and 10X ≧ Y ≧ 2X. This makes it possible to form a highly regular heel that is less disturbed and less buckling, improves the aesthetics of the appearance, and provides a heel that has a good fit and a smooth and satisfying feel when worn. A composite laminate having is realized.

The fabric used for the composite laminate in the present invention is preferably a woven fabric, a knitted fabric, a non-woven fabric, etc., and a particularly preferable fabric is a non-woven fabric, a wet non-woven fabric manufacturing method such as a papermaking method, a resin bond method, a thermal bond method, a needle punch method. , Any of those obtained by a dry nonwoven fabric manufacturing method such as a spunbond method, a spunlace method, a melt blow method and a flash spinning method, and may be a single layer or a plurality of laminates. Good. However, when the fabric is manufactured only by the spunbond method, it is possible to form a superior regularity with less irregularity, less buckling, and high regularity. Also, the basis weight of the nonwoven fabric is preferably from ^10g / ^{m 2 ~20g} / m 2 or less, more preferably ^{12g / m 2 ~18g / m 2} .

  The material of the fibers constituting the fabric is not particularly limited, but polyester, polyamide, polyacrylonitrile, polypropylene, polyethylene, copolymers of various α-olefins such as propylene and ethylene, synthetic fibers such as polyurethane, regenerated fibers such as rayon and acetate, Semi-synthetic fibers, natural fibers such as wool and cotton are preferred.

  The form of the fibers constituting the fabric may be either long fiber filaments or short fiber spun yarns. Two or more types of fibers may be mixed or mixed, crimped, or other composites Fibers can be selected widely.

The composite laminate in the present invention is one in which elastic fibers are used at least in part.
The elastic fiber used in the present invention is a polyurethane elastic fiber, a polyether ester elastic fiber, a polyamide elastic fiber, or a so-called rubber thread made of natural rubber, synthetic rubber or semi-synthetic rubber, and an elastomer. Those obtained by cutting the film into fibers, or fibers obtained by combining or mixing with other organic synthetic resin bodies mainly composed of these, crimped fibers, etc. can be adopted, and the fibers themselves have enthalpy elasticity. preferable. From the viewpoint of better exhibiting stretchability as a composite laminate, the most preferred is a polyurethane elastic fiber (typically, the polyurethane elastic yarn as described above).

  The elastic fiber used in the composite laminate in the present invention may be a bare yarn or may be covered (covered) with other elastic fibers or non-elastic fibers. From the viewpoint of stretchability, the bare laminate is most preferable as the composite laminate.

  The polyurethane elastic fiber is a polyester mainly composed of a long-chain diol such as a copolyesterdiol as a soft segment, a diisocyanate such as diphenylmethane-4,4 diisocyanate as a hard segment, and a bifunctional hydrogen compound as a chain extender. Polyether methylene glycol having a polytetramethylene ether glycol as a soft segment, diphenylmethane-4,4 diisocyanate as a hard segment, and a low molecular weight difunctional hydrogen compound as a chain extender is preferred as a main component.

  In addition, the polyether / ester-based elastic fiber is preferably composed mainly of polytetramethylene ether glycol as a soft segment and polybutyl terephthalate or polybutyl isophthalate as a hard segment.

  In the present invention, from the viewpoint of imparting desired stretchability to the final product, it is preferable to use polyurethane elastic fibers as described above.

  The polyurethane polymer used in the polyurethane elastic fiber that can be used in the present invention is a soft segment, an isocyanate, and a chain extender, each having a long-chain polyether segment, a polyester segment, or a polyether ester segment as main components. It is preferable to be comprised from the hard segment which uses diamine or diol as a main structural component.

  The raw material constituting the soft segment of such a polyurethane polymer is 1) a polymer or copolymer obtained from tetrahydrofuran, tetramethylene glycol, 3-methyl-1,5-pentanediol, tetrahydrofuran, 3-methyltetrahydrofuran or the like. Some polyether segments, 2) Polyester segments obtained from diols such as ethylene glycol, tetramethylene glycol, 2,2-dimethyl-1,3-propanediol, and dibasic acids such as adipic acid and succinic acid, and 3) poly Polyether ester segments obtained from-(pentane-1,5-carbonate) diol, poly- (hexane-1,6-carbonate) diol, etc. can be used, but among them, polyether obtained from tetramethylene glycol Segment, i.e. polytetramethylene ether glycol (hereinafter, abbreviated as PTMG) are preferred.

  In the elastic fiber used in the composite laminate of the present invention, the polyurethane polymer is prepared by subjecting a prepolymer product obtained by polyaddition reaction of a hydroxyl-terminated soft segment precursor with an organic diisocyanate (capping reaction) to an amine chain extender or diol. It can be obtained by chain extension with a chain extender. Furthermore, for the purpose of adjusting the heat softening point, it is also preferable to obtain the prepolymer product by further reacting with an organic diisocyanate and then reacting with a chain extender.

  Examples of the organic diisocyanate used for the polyurethane polymer in the present invention include bis- (p-isocyanatophenyl) -methane (hereinafter abbreviated as MDI), tolylene diisocyanate (TDI), bis- (4-isocyanatocyclohexyl)- Methane (PICM), hexamethylene diisocyanate, 3,3,5-trimethyl-5-methylenecyclohexyl diisocyanate and the like can be used, and MDI is particularly preferable.

  Various diamines such as ethylenediamine, 1,3-cyclohexanediamine, 1,4-cyclohexanediamine and the like are preferably used as diamine chain extenders for forming polyurethaneurea.

  The diamine chain extender is not limited to only one type of diamine, and may be composed of a plurality of types of diamines. A chain terminator can be included in the reaction mixture to help control the final molecular weight of the polyurethaneurea. Usually, a monofunctional compound having active hydrogen as a chain terminator, such as diethylamine, can be used.

  Further, the chain extender is not limited to the diamine, and may be a diol. In particular, it is suitable for obtaining an elastic fiber having a heat softening point of 100 ° C to 180 ° C. For example, ethylene glycol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, 1,2-propylene glycol, 1,4-cyclohexanedimethanol, 1,4-cyclohexanediol, 1,4-bis (Β-hydroxyethoxy) benzene, bis (β-hydroxyethyl) terephthalate, paraxylylene diol, and the like can be used. The diol chain extender is not limited to only one type of diol, and may be composed of a plurality of types of diols. Moreover, you may use together with the compound containing one hydroxyl group which reacts with an isocyanate group. In this case, various methods such as a melt polymerization method and a solution polymerization method can be adopted as a method for obtaining such a polyurethane, and the method is not limited. The polymerization formulation is not particularly limited, and for example, a method of synthesizing polyurethane by simultaneously reacting a polyol, a diisocyanate, and a chain extender composed of a diol can be employed. It may be a thing.

  Furthermore, it is also preferable to blend a stabilizer, a thermal conductivity improver and a pigment within a range not impairing the effects of the present invention.

  For example, hindered phenol-based drugs such as so-called BHT and Sumitizer (registered trademark) GA-80 manufactured by Sumitomo Chemical Co., Ltd. Trademark) ”and other benzotriazole-based, benzophenone-based agents, phosphorus-based agents, various hindered amine-based agents, fluororesin powders or silicone resin powders based on polyvinylidene fluoride, metal soaps such as magnesium stearate In addition, bactericides and deodorants containing silver, zinc, and these compounds, as well as various lubricants such as lubricants such as silicone and mineral oil, barium sulfate, cerium oxide, betaine, phosphate compounds, and phosphate ester compounds An inhibitor or the like may be added, or may exist by reacting with the polymer. In particular, in order to further enhance the durability to light and various nitric oxides, a nitric oxide scavenger, for example, HN-150 manufactured by Nippon Hydrazine Co., “Hostanox (registered trademark)” SE10 manufactured by Clariant Corporation, etc. It is preferable to contain a thermal oxidation stabilizer.

  In order to promote melting and thermal softening, it is preferable to contain, for example, alumina, boron nitride, aluminum nitride, silica, silicon nitride, magnesium oxide, magnesium carbonate, silicon carbide or the like as a thermal conductivity improver.

  For example, the pigment preferably contains titanium oxide, zinc oxide, zirconium phosphate or the like. Among these, titanium oxide is preferred from the viewpoint of suppressing the glare caused by peeling of the elastic fibers and obtaining a composite laminate having a homogeneous appearance in which the elastic fibers are not noticeable. As long as it is titanium oxide, either a rutile type or an anatase type is preferably used. Further, from the viewpoint of suppressing reflection of light and stably producing a polyurethane elastic yarn, it is preferable that the average primary particle diameter is in the range of 0.15 μm to 0.3 μm. The content in the polyurethane elastic fiber is preferably 0.3% by mass or more from the viewpoint of preventing glare, and from the viewpoint of stably spinning the polyurethane elastic fiber to prevent clogging of the die. It is preferable that it is 3 mass% or less.

  In order to promote melting and thermal softening, it is preferable to contain, for example, alumina, boron nitride, aluminum nitride, silica, silicon nitride, magnesium oxide, magnesium carbonate, silicon carbide or the like as a thermal conductivity improver.

  N, N-dimethylacetamide (hereinafter abbreviated as DMAc), dimethylformamide, dimethyl sulfoxide, N-methylpyrrolidone and the like can be used as a solvent when the polyurethane polymer is used as a solution. It is the most commonly used solvent.

  The solution concentration of the polyurethane polymer is preferably a dry spinning method in which a filament yarn of a polyurethane elastic fiber is obtained at a solution concentration of 30% by mass to 50% by mass (based on the total mass of the solution).

  In the present invention, the method for spinning polyurethane-based elastic fibers from a polyurethane polymer is not particularly limited. For example, 1) As a spinning method for polyurethane-based elastic fibers using diol as a chain extender, melt spinning is used. A method, a dry spinning method or a wet spinning method can be employed. 2) As a spinning method for polyurethane-based elastic fibers using diamine as a chain extender, a normal dry spinning method can be employed.

  In the present invention, the use of a filament yarn of polyurethane-based elastic fiber is suitable from the viewpoint of high stretchability, particularly stretch recovery stress, but the elastic fiber itself tends to be noticeable. Therefore, the following fiber specifications and combinations are preferable.

  The fineness of the fibers and elastic fibers constituting the fabric can be appropriately selected according to the intended use, but is preferably in the range of 0.1 dtex to 5000 dtex.

  The fineness of the fabric constituting the composite laminate in the present invention represents the maximum fineness of the fibers distributed on the fabric surface.

  The fineness of the fibers constituting the fabric is more preferably 0.1 dtex to 500 dtex, more preferably 0.1 dtex to 50 dtex, and most preferably 0.3 dtex to 30 dtex from the viewpoint of highly uniform wrinkle formation. And from a viewpoint of the favorable touch of a composite laminated body, Preferably, it is 0.2 dtex-5 dtex, More preferably, it is 0.2 dtex-2.0 dtex, More preferably, it is 0.2-1.5 dtex. Therefore, in the present invention, the fiber fineness of the surface layer of the fabric is preferably in the range of 0.3 dtex to 1.5 dtex, more preferably the surface of the fabric, from the viewpoints of highly uniform wrinkle formation and good feel. The fiber fineness of the layer is in the range of 0.3 dtex to 1.0 dtex.

  Further, the fineness of the elastic fiber is preferably 10 dtex to 300 dtex. If an elastic fiber having an elastic fiber fineness of less than 10 dtex is used, there is a tendency that the elastic fiber cannot withstand running friction during production, and yarn breakage tends to occur, and if an elastic fiber exceeding 300 dtex is used, manufacture There is a tendency that the sensor side cannot endure the running friction.

  And the composite laminated body in this invention employ | adopts the structure whose ratio of the fineness of the elastic fiber with respect to the maximum fineness of the fiber distributed on the fabric surface is 0.5 or more and 400 or less from a viewpoint of external appearance quality. More preferably, it is 0.5 or more and 300 or less.

  In order to obtain a composite laminate in which the presence of elastic fibers in the composite laminate is difficult to distinguish, i.e., a homogeneous laminate with inconspicuous elastic fibers, the influence of surface reflected light is more dominant than transmitted light. The maximum fineness of the fibers distributed in the fiber and the fineness ratio between the elastic fibers are important.

  When the ratio of the fineness of the elastic fiber to the maximum fineness of the fiber distributed on the fabric surface exceeds 400, the presence of the elastic fiber is noticeable and the appearance quality is impaired.

  If the ratio of the fineness of the elastic fiber to the maximum fineness of the fiber distributed on the fabric surface is 0.5 or more and 400 or less, the presence of the elastic fiber cannot be easily recognized visually, and the appearance quality is particularly excellent.

  This effect is prominent when the fiber fineness of the surface layer of the fabric is in the range of 0.3 dtex to 1.5 dtex, and more prominent when it is in the range of 0.3 dtex to 1.0 dtex. When the ratio of the fineness of the elastic fiber to the maximum fineness of the fiber distributed on the fabric surface is larger than 400, the presence of the elastic fiber in the composite laminate may be clearly visually recognized. It becomes easier to discriminate visually, and the appearance and aesthetics of the composite laminate are deteriorated. More preferably, it is 0.5 or more and 300 or less. If it is less than 0.5, the elasticity of the elastic fiber is substantially insufficient, so that wrinkles are not easily formed, and stretchability is hardly exhibited.

  In the present invention, in order to form beautiful wrinkles that are particularly highly stretched and highly regular, the bending resistance of the fabric in the longitudinal direction (MD direction) is in the range of 10 mm to 50 mm, and a composite laminate of elastic fibers A configuration in which the extension range in the completed state is in the range of 2.5 to 5 times is adopted. The bending resistance is measured by a measurement method described later. By setting the bending resistance within an appropriate range, it is possible to form a wrinkle that is less likely to be buckled and easily stretched. And in order to enable the gather part which has a wrinkle to extend | stretch appropriately over a wide size range, the expansion | extension range in the composite laminated body completed state of an elastic fiber is made into the range of 2.5 times-5 times.

  In the method for producing a composite laminate according to the present invention, a plurality of elastic fibers are inserted between two fabrics in parallel in one direction, and the elastic fibers when the elastic fibers are inserted are arranged. The expansion range is set to a range of 2.5 times to 5.5 times. The stretch range of the elastic fiber when inserting the elastic fiber is a draft of the elastic fiber when the composite laminate is manufactured. By producing in the stretch range of the elastic fiber, the stretch range of the elastic fiber in the completed composite laminate is 2.5 to 5 times. That is, the draft at the time of manufacture is not the degree of expansion of the finished product.

Furthermore, in the composite laminate according to the present invention, in order to obtain a composite laminate having a homogeneous appearance in which elastic fibers are not visible or inconspicuous, the color difference variation ΔE ^* v defined as follows is not more than a specific value ( 1.0 or less). The color difference variation ΔE ^* v is a value calculated from an L ^* value, an a ^* value, and a b ^* value in a Lab color system using a non-contact type spectrocolorimeter, which will be described later. The L ^* value in the Lab color system is an index representing lightness, the a ^* value is a position between red and green, and the b ^* value is an index representing a position between yellow and blue. As the color difference variation ΔE ^* v is larger, the change in the color difference at the intersection with the elastic fiber is larger. Therefore, it is easier to see the elastic fiber and to confirm the presence of the elastic fiber in appearance. When the color difference variation ΔE ^* v is 1.0 or less, the elastic fiber cannot be seen or the presence of the elastic fiber cannot be confirmed, or the elastic fiber is very difficult to see or its existence is very difficult to confirm. The required characteristics will be met.

  In the present invention, the elastic fiber may be an original yarn, and it is also preferable to use a fabric or a fiber constituting the fabric that is colored in advance. Although it does not specifically limit about the coloring method of a fabric and the fiber which comprises it, From the viewpoint of coloring with the same color as an elastic fiber, it is also preferable to color by cheese dyeing etc. which can adjust a color.

  Preferred as the elastic fiber used in the present invention is that there is no practical problem, including process passability, and excellent shape at the point where the elastic fiber and the resin extending in one direction intersect. From the viewpoint of obtaining, those having a thermal softening point in the range of 100 ° C. or higher and 240 ° C. or lower are preferable. When the heat softening point is lower than 100 ° C., the form may be destroyed by heat treatment from a resin extending in one direction at the time of tumbler drying or composite laminate production, such as dyeing process and practical use. If it is higher, the compatibility between the resin extending in one direction and the elastic fiber is low, which may adversely affect the formation of wrinkles. The range of the thermal softening point is more preferably 110 ° C. or higher and 200 ° C. or lower, and most preferably 120 ° C. or higher and 160 ° C. Within this range, a heat roll, an ultrasonic welder, a high frequency welder, an electromagnetic induction welder, or a composite welder thereof, which is a well-known method, is used to extend in one direction in which a plurality of them are arranged in a direction crossing the elastic fiber. It is suitable for the resin constituting the elastic fiber and / or the material constituting the fabric to be softened or melted.

  In the fabric used for the composite laminate according to the present invention, there are resins extending in one direction arranged in a direction intersecting with the elastic fibers, and the resins are hot melt adhesives, solvent-based adhesives, etc. The materials constituting the various adhesives and elastic fibers and / or fabrics are heat-softened or melted.

  When the material constituting the fabric is heat-softened or melted, various known methods such as heat embossing and ultrasonic fusion can be employed.

  It is also preferable that a mechanical entanglement method such as a needle punch or a water jet is added to the resin region extending in one direction.

  Furthermore, a resin preferable as a resin extending in one direction is a resin containing the same kind of material as that of the fabric and elastic fibers in order that the present invention enhances the effect thereof, and more preferably includes a component of the fabric and elastic fibers. preferable. And when using resin containing the component of this cloth and elastic fiber as resin extended in one direction, it is preferred to heat-soften or melt cloth or elastic fiber, and form resin extended in one direction, Most preferred is a case where both the fabric and the elastic fiber are formed by heat softening or melting.

  The composite laminate of the present invention is a composite laminate having elasticity, and is a garment that is in close contact with the skin, specifically underwear, sportswear, diapers for children and adults, sanitary products, masks, and medical wear. It is suitable for use in hygiene materials such as surgical clothes, bandages, supporters, medical materials, etc., and also because of its excellent aesthetics, interior products such as curtains and furniture, bedding, lining, girdles, bras, inti Applications include mate products, clothing waistbands, stretch sportswear, and stretch outerwear.

  Hereinafter, evaluation of the regularity of wrinkles in the present invention will be described with reference to examples. First, a method for measuring and evaluating each characteristic used in the description of the present invention will be described.

[Thermal softening point]
The thermal softening point was measured as one of the heat resistance indicators of elastic fibers. The elastic fiber was measured for temperature dispersion of the dynamic storage elastic modulus E ′ at a heating rate of 10 ° C./min using a dynamic elastic modulus measuring device RSAII manufactured by Rheometric. The thermal softening point was determined from the intersection of the tangent line in the plateau region of the E ′ curve and the tangent line of the E ′ curve where E ′ descends due to thermal softening. Note that E ′ is a logarithmic axis, and temperature is a linear axis.

[Evaluation of wrinkles of composite laminate] (Buckling evaluation of wrinkles)
The composite laminate is stretched 20% in the MD direction, fixed at both ends with a length of 30 cm, and left for 24 hours at a temperature of 20 ° C. and a relative humidity of 65%. Then, the shape of the eyelid was observed visually and the following determination was performed.
(Buckling of the heel)
A: There are no turbulences in the habit.
A: 1 to 3 wrinkle disturbances.
(Triangle | delta): The disorder | damage | failure of a ridge is 4-10 places.
X: Disturbance of wrinkles is 10 or more.

[Measurement of bending resistance of fabric]
The MD softness (mm) was measured according to JIS L1906 “General long fiber nonwoven fabric test method” (flexibility A method (cantilever method)).

[Measurement of elongation after completion of composite laminate of elastic fibers]
The composite laminate was stretched and fixed to the maximum in the stretching direction, and the elastic fiber in the composite laminate was cut accurately to a length of 10 cm. Next, the resin for joining the composite laminate was dissolved in a solvent (for example, toluene, acetone, cyclohexane, menthol, etc.), and the cut elastic fibers were taken out from the composite laminate. Then, the length r (cm) in the relaxed state after leaving the elastic fiber taken out for 24 hours in 23 degreeC and 65% relative humidity environment was measured. The measurement was carried out on 10 elastic fibers taken out, and the average value R was used to determine the elongation in the completed composite laminate from the following formula.
Elongation (times) = 10 / R in the completed composite laminate

[Measure color variation of composite laminate]
The composite laminate to be measured is stretched to the maximum in the stretching direction and fixed, and black on the lining (L ^* = 20 ± 1, a ^* = 0.2 ± 0.2, b ^* = 0.3 ± 0.2) ) Was placed. Using a color master (D25 DP-9000 type signal processor) as a non-contact type spectrocolorimeter, colorimetric diameter φ = 1 mm, L ^* value, a ^* value, b in L * a * b * color system ^* 40 values were measured at intervals of 0.5 mm in the width direction of the composite laminate. From the measurement results, the color difference fluctuation “ΔE ^* v” is set such that the point with the maximum value of L * is L ^* 1, a ^* 1, b ^* 1, and the point with the minimum value is L ^* 2, a ^* 2, b ^* 2. Was obtained from the following formula.
^{ΔE * v = √ [(L} * 1-L * 2) 2 + (a * 1-a * 2) 2 + (b * 1-b * 2) 2]

[Fineness of fabric]
The fibers on the surface of the fabric are observed using a scanning electron microscope, the maximum value (α) of the diameters of 10 randomly selected surface fibers is measured, and the density (ρ) g / m of the substance constituting the fabric ³ was obtained from the following formula.
Fineness (dtex) = ρ × π × (α / 2) ² × 10000

[Fineness of elastic fiber]
In the present invention, the fineness of the elastic fiber is an apparent fineness measured according to ISO2060, and the measurement method is as follows. The sample of the elastic fiber used for the measurement of the apparent fineness is a sample that is allowed to stand for 24 hours in an environment of 20 ° C. and 65% relative humidity. The elastic fiber is cut to a length d (unit: m) under no load, and an apparent fineness (dtex) = yarn mass (g) of length d (m) × 10000 ÷ d is obtained to one decimal place. Here, the length d is usually 0.1 m, but it is not necessary to be a single continuous fiber, and the total length d ′ of the plurality may be 0.1 m. In this case, when a sample of elastic fibers is taken out from the composite laminate, the elastic fibers arranged between the two fabrics may be sampled from a location separated from each fabric. For example, the composite laminate is cut with scissors along a resin extending in one direction and arranged in a direction intersecting the elastic fibers, and the elastic fiber pieces having a good linear shape have a total length. The dimensions are measured with an optical microscope until 0.1 ± 0.01 m, a plurality of elastic fiber pieces are selected, and the total length d ′ is obtained. Next, there is a method in which the total mass of a plurality of elastic fiber pieces selected with a precision balance is measured, and the total mass (g) × 10000 ÷ d ′ of the elastic fiber pieces is calculated to obtain the fineness of the elastic fibers.

[Example 1]
As shown in Table 1, 16 156 dtex polyurethane elastic yarns (thermal softening point: 220 ° C.) were inserted at a draft of 4 times when inserted between fabrics. As a fabric, a PP (polypropylene) non-woven fabric having a laminated structure of spunbond layers / spunbond layers (indicated as “SS” in Table 1), a basis weight of 17 g / m ² , and surface layer fibers Used at a fineness of 0.8 dtex. The bending resistance in the MD direction of this nonwoven fabric was 45 mm. A hot melt adhesive is used as the resin for joining the polyurethane elastic yarn and the nonwoven fabric as the fabric, and a standard product (manufacturer: Bostic, product number: AFX-162) with high cohesive force is used as the resin. used. The resin width X and the inter-resin distance Y were set as shown in Table 1. As a result, as shown in Table 1, the elongation of the elastic fiber (elongation in the completed state of the composite laminate of elastic fibers) is 3.6 times, the buckling property of the heel is ◎, and ΔE ^* v is 0.5. As a result, a composite laminate having a desired high elongation, beautiful regular wrinkles, and excellent appearance aesthetics was obtained.

[Examples 2 to 8, Comparative Examples 1 to 7]
As shown in Table 1, one of the conditions was changed as compared with Example 1 (the heat softening point of the polyurethane elastic yarn was 220 ° C.). In addition, "SMS" in Table 1 represents that the nonwoven fabric has a three-layer structure of spunbond layer-melt blow layer-spunbond layer.

As shown in Table 1, in Examples 1 to 8, since the conditions defined in the present invention are satisfied, it has a highly stretched wrinkle that has high regularity with little disturbance and can be expanded and contracted over a wide size range, And the composite laminated body which has the external appearance excellent in the aesthetics in which presence of an elastic fiber is not conspicuous was obtained. On the other hand, in Comparative Examples 1-7, since any of the conditions prescribed | regulated by this invention was not satisfy | filled, the composite laminated body which satisfy | fills both the aesthetics in which presence of an elastic fiber is not conspicuous, and the target performance of a wrinkle was not obtained. That is, in Comparative Example 1, the fabric had too high bending resistance, and the fabric was too hard, so that satisfactory evaluation on the buckling property of the heel was not obtained. In Comparative Example 2, the draft at the time of insertion of the polyurethane elastic yarn was too small, and satisfactory evaluation was not obtained with the elongation and the buckling property of the heel in the finished state of the composite laminate of elastic fibers. In Comparative Example 3, the resin width was too small, and satisfactory evaluation was not obtained with the buckling property of the ridge. In Comparative Example 4, the resin width was too large, and satisfactory evaluation could not be obtained with the elongation and the buckling property of the heel in the finished state of the composite laminate of elastic fibers. In Comparative Example 5, the distance between the resins was large, and the relationship between the resin width X and the distance between the resins Y was out of the range defined in the present invention, so that satisfactory evaluation was not obtained with the buckling property of the ridges. In Comparative Example 6 and Comparative Example 7, the polyurethane elastic yarn was too thick, a satisfactory evaluation was not obtained with the buckling property of the heel, and the color difference variation ΔE ^* v exceeded 1.0, and the elastic fiber was conspicuous The aesthetics of the excellent appearance could not be obtained.

  The composite laminate and the manufacturing method thereof according to the present invention can be applied to any composite laminate that is required to have a stretchable gather part, and can be used for underwear, sportswear, children's and adult paper diapers, and sanitary goods. It is suitable for uses such as sanitary materials.

Polyurethane polymer in the elastic fibers used in the composite laminate of the present invention, the hydroxyl-terminated soft segment precursors be polyaddition reaction in an organic diisocyanate di amine chain extender and the resulting prepolymer product by (capping reaction) or It can be obtained by chain extension with a diol chain extender. Furthermore, for the purpose of adjusting the thermal softening point, it is also preferable to obtain the prepolymer product by further reacting with an organic diisocyanate and then reacting with a chain extender.

Claims (11)

Between two fabrics,
A plurality of elastic fibers arranged in parallel in one direction;
A composite laminate comprising a plurality of the fabrics arranged side by side in one direction intersecting with the elastic fibers and a resin that joins the elastic fibers and the elastic fibers,
The two fabrics and the elastic fibers are spaced apart from each other where the elastic fibers intersect in the longitudinal direction of the elastic fibers,
The width X of the resin extending in one direction is 0.2 mm to 4 mm, the distance Y of the shortest distance between the arranged resins is 3 mm or more, and 10X ≧ Y ≧ 2X,
The ratio of the fineness of the elastic fiber to the fineness of the fiber constituting the fabric is 0.5 or more and 400 or less,
The bending resistance of the fabric in the longitudinal direction (MD direction) is in the range of 10 mm to 50 mm, and
The composite laminate is characterized in that the elastic fiber has a stretch range of 2.5 to 5 times in a completed composite laminate.   The composite laminate according to claim 1, wherein the fiber fineness of the surface layer of the fabric is in the range of 0.3 dtex to 1.5 dtex.   The composite laminate according to claim 1 or 2, wherein a fiber fineness of a surface layer of the fabric is in a range of 0.3 dtex to 1.0 dtex. When measuring the color of the outer surface of the fabric from the outside of the composite laminate in a direction intersecting with the elastic fibers with the spectrocolorimeter in a state where the composite laminate is extended to the maximum in the extending direction of the elastic fibers, L ^{* L *} value value at the point showing the maximum value, ^{a *} value, ^{b *} value ^{(L * 1, a * 1} , b * 1) and ^{L * L} value at the point showing the minimum value ^* value, a ^The color difference variation ΔE ^* v defined by the following formula using the ^* value and the b ^* value (L ^* 2, a ^* 2, b ^* 2) is 1.0 or less. The composite laminate described.
^{ΔE * v = √ [(L} * 1-L * 2) 2 + (a * 1-a * 2) 2 + (b * 1-b * 2) 2]   The composite laminated body in any one of Claims 1-4 whose fineness of the said elastic fiber exists in the range of 10 dtex-300 dtex.   The composite laminate according to any one of claims 1 to 5, wherein a ratio of the fineness of the elastic fiber to the fineness of the fiber constituting the fabric is in the range of 0.5 to 300.   The composite laminate according to any one of claims 1 to 6, wherein the fabric is produced only by a spunbond method.   The composite laminate according to claim 1, wherein a thickness of the composite laminate at a location where the resin extending in one direction and the elastic fiber intersect is 0.1 mm or more and 2.0 mm or less.   The maximum value of the thickness of the composite laminate between the elastic fiber adjacent to the longitudinal direction of the elastic fiber and the elastic fiber intersecting with the elastic fiber is 1 mm or more and 20 mm or less. A composite laminate according to any one of the above.   The composite laminate according to any one of claims 1 to 9, wherein the resin extending in one direction contains the same component as the constituent component of the fabric and / or the elastic fiber.   The method for producing a composite laminate according to any one of claims 1 to 10, comprising a step of inserting and arranging a plurality of elastic fibers in parallel in one direction between two fabrics, A method for producing a composite laminate, wherein the elastic fiber has an extension range of 2.5 to 5.5 times when the elastic fiber is inserted.