Laminate for garment and infection prevention garment

Abstract

To provide a laminate for infection-prevention garments, having waterproof performance, excellent virus barrier and blood barrier properties, and moisture permeability that prevents stuffiness when wearing during a summer season, and being lightweight with sufficient stretchability, and to provide a reusable infection-prevention garment using the laminate, having excellent waterproof performance, ozone durability and wearing comfort allowing easy movement when worn.SOLUTION: A laminate for garments has a knitted front fabric, a moisture-permeable barrier film, and a knitted backing fabric, laminated in this order. The knitted front fabric and the knitted backing fabric are mainly composed of polyamide fibers. The moisture-permeable barrier film is mainly composed of a polyurethane resin. The laminate for garments has a basis weight of 120 g / m2 or lower, and a water pressure resistance of 450 kPa or above measured by using a perforated plate specified by 6.3.1.4 in JIS K 6404-3, when tested by JIS L 1092 (2009) B method (high pressure method).SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a laminate for clothing and an infection-preventing clothing which have barrier properties against blood and viruses, and are also excellent in moisture permeability, stretchability, and light weight. [Background technology]

[0002] In recent years, in the medical field, infection prevention clothing is used in medical settings to protect the body from viruses and the like. Infection prevention clothing is required to have not only high virus barrier properties and blood barrier properties, but also high moisture permeability that can efficiently release heat and moisture generated by sweating to the outside of the fabric from the viewpoint of wearing comfort. In order to have high virus barrier properties and blood barrier properties, it is required to have high waterproof performance that is commensurate with them. If the desired waterproof performance is not achieved, blood, body fluids, etc. will easily penetrate, and the chances of the wearer of the clothing coming into contact with bacteria, viruses, etc. will increase. As a clothing material that has both waterproofness and moisture permeability to achieve virus barrier properties and blood barrier properties, a blood / virus barrier laminate in which a substrate, a resin film, and an adhesive layer are laminated has been conventionally known.

[0003] For example, Patent Document 1 describes a laminate in which a woven polyester fiber fabric is used as a surface fiber fabric, a knit polyester fiber fabric is used as a lining fiber fabric, and the surface fiber fabric, a microporous membrane made of a polycarbonate polyurethane resin, an adhesive layer, and the lining fiber fabric are laminated in this order. Patent Document 2 describes a laminate usable for medical applications in which a tricot knit fabric using polyester filaments is laminated on both sides of a film mainly composed of a polycarbonate polyurethane resin via an adhesive resin. Patent Document 3 describes a blood barrier laminate having excellent washing durability, which is a laminate in which a surface fabric, a first adhesive layer, a microporous polytetrafluoroethylene (PTFE) film having moisture permeability, a second adhesive layer, and a lining are laminated together in this order, and the surface fabric and the lining are both woven or knitted fabrics made of polyester fibers. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2014-046576 A [Patent Document 2] JP 2012-076273 A [Patent Document 3] JP 2014-121858 A

[0005] Known infection prevention clothing includes disposable types that are intended to be used once and reusable types that are intended to be used multiple times while being disinfected and washed after each use. These infection prevention clothing are required to have excellent virus barrier properties and blood barrier properties in particular. For this reason, known infection prevention clothing, particularly reusable types, are required to have washing durability for disinfection and the like. However, on the other hand, the fabric is thick and has poor stretchability. Such infection prevention clothing is prone to fatigue for the wearer due to its weight and low stretchability when worn, and is also prone to becoming stuffy when worn in the summer. Therefore, it is poor in terms of comfort and workability.

[0006] In recent years, as temperatures have risen due to global warming and other factors, there has been a growing demand for infection prevention clothing that prevents stuffiness when worn in the summer, allows ease of movement even when worn for long periods of time, and is less uncomfortable, i.e., provides improved comfort.

[0007] The laminate disclosed in Patent Document 1 is designed to provide moisture permeability to improve comfort, but there is room for further improvement in moisture permeability, and the garment may become stuffy when worn in summer. In addition, since a woven fabric is used as the outer fiber fabric, the stretchability is not sufficient, and there is room for improvement in the wearing comfort.

[0008] The laminate disclosed in Patent Document 2 has excellent stretchability because it uses tricot knit fabric on both sides of the film. However, because the tricot knit fabric is made of polyester filaments, there is room for improvement in terms of lightness. In addition, the moisture permeability of the film is not sufficient, so when worn in the summer, stuffiness may occur, and there is also room for improvement in the wearing comfort.

[0009] The blood barrier laminate disclosed in Patent Document 3 uses a PTFE film as a microporous film, and therefore does not have sufficient stretchability or light weight, and is prone to becoming stuffy when worn in summer, so there is room for improvement in ease of movement and wearing comfort.

[0010] To prevent stuffiness and improve comfort when worn in summer, it is necessary to give the fabric sufficient stretchability and lightness. However, no infection prevention clothing has yet been proposed that satisfies all the performance requirements of sufficient stretchability, lightness, moisture permeability, and waterproofness.

[0011] Moreover, in light of recent social circumstances, there is a strong demand for infection prevention clothing to have chemical resistance, particularly durability against ozone, which is used for sterilization and disinfection. Summary of the Invention [Problem to be solved by the invention]

[0012] Therefore, the object of the present invention is to provide a laminate for clothing that is a suitable material for reusable infection prevention clothing, and that not only has excellent waterproof properties as a virus barrier and blood barrier required for infection prevention clothing, but also has moisture permeability that reduces stuffiness when worn in summer, is lighter than conventional products, and has sufficient stretchability. Another object of the present invention is to provide infection prevention clothing that uses the laminate, has excellent waterproof properties as a blood and virus barrier and durability against ozone, reduces stuffiness when worn, is lightweight and has sufficient stretchability to allow easy movement when moving, and is comfortable to wear. [Means for solving the problem]

[0013] The clothing laminate of the present invention is a clothing laminate in which an outer knitted fabric, a moisture-permeable barrier film, and an inner knitted fabric are laminated in this order, the outer knitted fabric and the inner knitted fabric being mainly composed of polyamide-based fibers, the moisture-permeable barrier film being mainly composed of polyurethane resin, and the clothing laminate has a basis weight of 120 g / m 2 When tested according to JIS L 1092 (2009) Method B (high water pressure method), the water pressure resistance measured using a screen specified in JIS K 6404-3, 6.3.1.4 is 450 kPa or more.

[0014] The clothing laminate of the present invention has a moisture permeability of 15,000 to 53,000 g / m as measured by the B-1 method (potassium acetate method) of JIS L 1099 (2012). 2 / 24h, and the moisture-permeable barrier film preferably does not have a number of micropores sufficient to satisfy the moisture permeability requirement.

[0015] The laminate for clothing of the present invention preferably has a longitudinal elongation percentage of 5 to 25% and a transverse elongation percentage of 10 to 45%, as measured by JIS L 1096 (2010) Method B.

[0016] The laminate for clothing of the present invention preferably has an elongation recovery rate of 70% or more one hour after removal of weight in both the longitudinal and transverse directions, as measured according to JIS L 1096 B-1 method.

[0017] It is preferable that the clothing laminate of the present invention has a virus barrier property that passes the test of ASTM F1670-08B method before the first washing, and an artificial blood barrier property that passes the test of ASTM F1671-07B method before the first washing.

[0018] The clothing laminate of the present invention is preferably such that when washed 50 times according to JIS L 0217 Method 103 and then hung to dry, the water pressure resistance measured according to JIS L 1092 (2009) Method B (high water pressure method) after the hung to dry is 350 kPa or more.

[0019] The clothing laminate of the present invention preferably has a water pressure resistance of 350 kPa or more when measured by JIS L 1092 (2009) Method B (high water pressure method) after being left in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000.

[0020] It is preferable that the water resistance of the clothing laminate of the present invention, after being left in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000, measured according to JIS L 1092 (2009) Method B (high water pressure method), is 90% or more of the water resistance measured before being left.

[0021] The infection-preventing clothing of the present invention is composed of the above-mentioned clothing laminate. Effect of the Invention

[0022] The laminate for clothing of the present invention has waterproof properties with excellent virus barrier properties and blood barrier properties, moisture permeability that does not cause stuffiness when worn in summer, and is also lightweight and has excellent stretchability. The laminate for clothing of the present invention also has durability against ozone used for disinfection. For this reason, the laminate for clothing of the present invention is a material particularly suitable for reusable infection prevention clothing.

[0023] An infection preventive garment made of the clothing laminate of the present invention is less likely to become stuffy even when worn in the summer, and is also excellent in terms of comfort and ease of use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The clothing laminate of the present invention comprises an outer knitted fabric, a moisture-permeable barrier film, and an inner knitted fabric laminated in this order. In this specification, the moisture-permeable barrier film is sometimes referred to as a "non-porous film".

[0025] The present inventors considered that it is important to use knitted fabrics mainly composed of polyamide-based fibers for both the outer and inner layers of the clothing laminate in order to obtain a clothing laminate having sufficient lightness and stretchability in addition to moisture permeability and waterproofness. That is, as will be described later in detail, by using polyamide-based fibers with a low polymer specific gravity, the laminate has a basis weight below a specific value and is particularly excellent in lightness. Furthermore, by using a specific knitted fabric for both the outer and inner layers, the laminate also has excellent stretchability. Therefore, the infection prevention clothing using the clothing laminate of the present invention can be easily moved when, for example, a medical worker wears it to perform emergency activities, and can also reduce heat. Furthermore, it can be made to have excellent wearing comfort, such as being easy to put on and take off.

[0026] In order for the clothing laminate to have excellent moisture permeability, waterproofness, light weight, and stretchability, it is preferable that the outer fabric and the lining fabric, which are mainly composed of polyamide-based fibers, have the configuration described specifically below.

[0027] [Outer fabric / Lining fabric] The outer knitted fabric and the inner knitted fabric are mainly composed of polyamide fibers. As the polyamide fibers, those composed of homopolymers such as nylon 6, nylon 66, nylon 11, nylon 12, nylon 56, nylon MXD (polymetaxylylene adipamide), and copolymers or mixtures mainly composed of these are preferably used. Among them, fibers made of nylon 6 are preferable. Compared with polyester polymers, polyamide polymers have a specific gravity that is about 20% smaller as a polymer characteristic, and are suitable from the viewpoint of light weight, which is one of the appealing points of the present invention. Therefore, in the present invention, the fibers that mainly compose the outer knitted fabric and the inner knitted fabric are polyamide fibers.

[0028] As long as the effects of light weight and moisture permeability and waterproofness are not impaired, the knitted fabric may contain fibers other than polyamide fibers, for example, synthetic fibers such as polyester fibers typified by polyethylene terephthalate, polyacrylonitrile fibers, and polyvinyl alcohol fibers, semi-synthetic fibers such as triacetate, and cellulosic fibers such as cotton, hemp, rayon, polynosic, cupra, lyocell, and acetate. The outer knitted fabric and the lining knitted fabric may contain fibers such as conductive threads as necessary.

[0029] However, the polyamide fiber content of the fibers constituting the outer knitted fabric and the lining knitted fabric is preferably 90% by mass or more, and particularly preferably 100% by mass.

[0030] . The polyamide fiber may be any of long fibers, short fibers, and staple yarns, and may be any of multifilaments and monofilaments. The filaments may be processed yarns such as flat yarns (raw silk), false twisted yarns, and air entangled yarns. From the viewpoint of making the laminate for clothing thin and providing excellent surface smoothness, raw silk is preferably used, and from the viewpoint of further improving the stretchability of the laminate for clothing, false twisted yarns are more preferably used.

[0031] The single yarn fineness of the polyamide fiber is preferably 0.7 to 10 dtex, and more preferably 1.0 to 6 dtex. If the single yarn fineness is less than 0.7 dtex, the yarn may be too thin and the moisture permeability may decrease. On the other hand, if the single yarn fineness is more than 10 dtex, the yarn may be too thick and the knitted fabric may become coarse, resulting in a poor feel to the touch, or the moisture-permeable barrier film may be exposed from the knitted fabric surface, resulting in a decrease in the durability of the laminate.

[0032] The total fineness of the polyamide fiber is preferably 10 to 80 dtex, more preferably 20 to 60 dtex. If the total fineness is less than 10 dtex, the adhesion between the outer or inner knitted fabric and the moisture-permeable barrier film may decrease, or the resin used as an adhesive during bonding may leak from the surface of the knitted fabric. On the other hand, if the total fineness exceeds 80 dtex, the knitted fabric tends to become heavy and less lightweight.

[0033] The knitted fabrics for the outer material and the knitted fabric for the lining material may be the same as or different from each other in terms of the structure and characteristic values ​​described below.

[0034] The knitting density of the outer knitted fabric is preferably 40-150 courses / 2.54 cm and 25-100 wales / 2.54 cm, and more preferably 45-150 courses / 2.54 cm and 28-100 wales / 2.54 cm. On the other hand, the knitting density of the lining knitted fabric is preferably 40-150 courses / 2.54 cm and 25-100 wales / 2.54 cm, and more preferably 45-100 courses / 2.54 cm and 28-80 wales / 2.54 cm. If the course density and wale density are below the above ranges, the knitted fabric will have coarse weaving points and will tend to have more voids in the knitted fabric, which will result in the moisture-permeable barrier film being exposed to the knitted fabric surface through the voids, and the waterproofing that barriers blood and viruses will be easily reduced. On the other hand, if the course density and wale density exceed the respective ranges described above, the constraint by the weaving points will be strengthened, and the tear strength and burst strength of the knitted fabric will decrease, the knitted fabric will become heavier and less lightweight, and the moisture permeability of the laminate will tend to decrease.

[0035] The weight of the outer knitted fabric and the lining knitted fabric is 20 to 70 g / m 2 It is preferable that the thickness is 20 to 50 g / m 2 It is more preferable that the weight of the outer knit fabric and the inner knit fabric is 20 g / m 2 By setting the thickness to 70 g / m or more, the laminate for clothing is not too thin and has excellent tensile strength, burst strength, and water pressure resistance.2 By setting the weight as below, when the clothing laminate is used for infection prevention clothing or the like, the clothing becomes lighter and the wearing comfort is improved.

[0036] In addition, the total weight of the outer and lining knits is 40 to 95 g / m 2 It is preferable that the thickness is 40 to 90 g / m 2 More preferably, 45 to 90 g / m 2 When the total basis weight of the outer knitted fabric and the lining knitted fabric satisfies the above range, the clothing laminate becomes sufficiently light, and when used as infection prevention clothing, it allows ease of movement and reduces heat.

[0037] The knitted fabric may be either a warp knitted fabric or a weft knitted fabric. Examples of the warp knitted fabric include denby knitting, cord knitting, and atlas knitting, and examples of the weft knitted fabric include flat knitting, rib knitting, pearl knitting, and smooth knitting. In particular, tricot knitted fabrics are preferred because they have less stretchability than knitted fabrics having other structures and do not have too large stitch gaps. In addition, tricot knitted fabrics are preferred because they can provide a long greige fabric in the knitted fabric length direction during knitting and can reduce seams, allowing the knitted fabric to be uniformly laminated on the moisture-permeable barrier film when forming a clothing laminate. Among these, half tricot knitting is preferred from the viewpoints of light weight, durability, and shape stability.

[0038] When the outer and inner fabrics are made of polyamide tricot, the yarn constituting the outer fabric is thicker than the yarn constituting the inner fabric, and the knitted fabric has a high basis weight and is strong, which improves abrasion resistance. In this case, the knitted fabric for the inner fabric can be made lighter than the knitted fabric for the outer fabric. In addition, the knitted fabric stretches, so it has good stretchability.

[0039] [Non-porous membrane (moisture-permeable barrier membrane)] The non-porous membrane is mainly composed of a polyurethane resin having water swelling properties in order to provide excellent stretchability. The non-porous membrane is preferably a dry polyurethane film in terms of waterproofness and durability. The dry polyurethane film is preferably laminated with the outer knitted fabric and the lining knitted fabric by a lamination method described later.

[0040] In known techniques, for example, as described in the above-mentioned Patent Document 1, moisture permeability is achieved by a microporous film. In contrast to this, in the present invention, the moisture-permeable barrier film does not have the number of micropores required to achieve the required moisture permeability. Instead, as described below, it is preferable that the moisture-permeable barrier film is formed of a film mainly made of a polyurethane resin having water swelling properties to achieve moisture permeability. Here, "not having the number of micropores required to achieve the required moisture permeability" means that it is acceptable for the film to have micropores in an amount that is less than the amount that would affect the moisture permeability, as long as the blood barrier property or virus barrier property is not affected.

[0041] As the polyurethane resin, a conventionally known resin obtained by reacting a polyisocyanate component with a polyol component can be used.

[0042] As the polyisocyanate component, aromatic diisocyanates, aliphatic diisocyanates, alicyclic diisocyanates, etc. are used alone or in combination. Specifically, tolylene-2,4-diisocyanate, 4,4'-diphenylmethane diisocyanate, 1,6-hexane diisocyanate, 1,4-cyclohexane diisocyanate, etc. may be mentioned as the main component. If necessary, trifunctional or higher polyisocyanates may be used.

[0043] Examples of the polyol component include polyether polyols and polyester polyols. Examples of the polyether polyols include polyethylene glycol, polypropylene glycol, and polytetraethylene glycol. Examples of the polyester polyols include reaction products of diols such as ethylene glycol and propylene glycol with dibasic acids such as adipic acid and sebacic acid, and ring-opening polymers such as caprolactone. Other examples include polymers of oxyacid monomers or prepolymers thereof. In order to obtain high moisture permeability using polyurethane resin alone, it is preferable to use polyol components containing a relatively large amount of polyoxyethylene groups, such as polyethylene glycol and polyoxypropylene polyoxyethylene copolymers, within a range that does not adversely affect water swelling and the tag feeling of the film.

[0044] The nonporous film may contain a small amount of resin other than polyurethane resin, for example, about 20 mass% or less in the solid content, as long as the effect of moisture permeability and waterproofing described later is not impaired. Examples of such resins include polymers or copolymers such as polyacrylic acid, polyvinyl chloride, polystyrene, polybutadiene, polyamino acids, and polycarbonates. Examples include those polymers or copolymers modified with fluorine, silicon, etc. In addition, various additives such as pigments and fillers, and various functional materials such as antibacterial agents, deodorants, and flame retardants may be contained as a third component.

[0045] The non-porous membrane must have water swelling to exhibit moisture permeability. The water swelling rate of the non-porous membrane is preferably 5 to 30%, more preferably 8 to 25%. If the water swelling rate is less than 5%, moisture permeability is difficult to achieve even if the membrane thickness is adjusted to be thin. If the water swelling rate exceeds 30%, when the non-porous membrane is processed into a laminate for clothing, the deformation due to swelling of the membrane when wet becomes larger than that of the outer fabric and the inner fabric. As a result, the outer fabric or the inner fabric and the non-porous membrane tend to peel off easily, and the abrasion resistance of the membrane also tends to decrease. Here, the water swelling rate refers to the increase in length after a test piece cut to a width of 10 mm and a length of 150 mm is immersed in water at 20°C for 10 minutes.

[0046] The method for producing the non-porous membrane is not particularly limited as long as it can be made into a film. For example, after melting a block of polyurethane chips, extrusion molding is performed using a T-die or the like. Alternatively, a dry film is preferably produced by dispersing or dissolving the resin solid content in a solvent, applying the resulting solution to a release paper or release cloth using a comma coater or the like, and then drying the solution at 50 to 150°C for about 30 seconds to 5 minutes to make a film.

[0047] The above-mentioned solvent for the polyurethane resin (composition) forming the non-porous membrane is preferably a solvent mainly composed of N,N-dimethylformamide or methyl ethyl ketone, which is a good solvent for polyurethane resin. The solid content of the polyurethane resin (composition) is preferably about 15 to 35 mass%. If it is less than 15 mass%, a large amount of solution is required when applying to a release cloth having a large fineness of 200 decitex or more and strong unevenness, and it is difficult to completely cover the release cloth surface. If it exceeds 35 mass%, the leveling property decreases, and problems such as difficulty in controlling the coating thickness when obtaining a non-porous membrane are likely to occur.

[0048] The thickness of the non-porous membrane is preferably in the range of 5 to 30 μm, more preferably 7 to 20 μm. If the thickness is less than 5 μm, the waterproof performance tends to decrease. If the thickness exceeds 30 μm, the weight of the laminate becomes heavy, resulting in poor lightness and poor moisture permeability.

[0049] In the clothing laminate, the knitted fabric for the outer material and the knitted fabric for the inner material may be directly laminated with the non-porous membrane, but in the present invention in which knitted fabrics are used for both the outer material and the inner material, it is preferable to provide an adhesive layer on the knitted fabric. In other words, it is preferable from the viewpoint of peel strength that the knitted fabric and the non-porous membrane are laminated via an adhesive layer.

[0050] During lamination, it is preferable to apply as little tension as possible to the knitted fabric and the nonporous membrane. If too much tension is applied, the knitted fabric and the nonporous membrane will have inherent distortion, and clothing formed from the clothing laminate will be prone to shrinkage in washing.

[0051] The type of adhesive used in the adhesive layer is not particularly limited. For example, adhesives mainly composed of polyurethane resin, polyester resin, polyamide resin, polytetrafluoroethylene resin, polyethylene resin, polypropylene resin, polyacrylic resin, polyvinyl chloride resin, ethylene-vinyl alcohol copolymer resin, etc. can be mentioned. Among them, it is preferable that the adhesive has excellent compatibility with the non-porous membrane, so that the adhesive layer is preferably made of a polyurethane adhesive, similar to the polyurethane resin constituting the non-porous membrane, and more specifically, it is more preferable that the adhesive can absorb water molecules into the resin, similar to the non-porous membrane.

[0052] When the adhesive layer is formed on the entire surface of the non-porous membrane, the water pressure resistance and the barrier properties against viruses and blood of the laminate can be improved. In this case, from the viewpoint of moisture permeability, it is preferable that the adhesive is capable of absorbing water molecules. Since the adhesive layer may be exposed between the knitted fabric and the strong gloss may impair the appearance, it is preferable to bond the adhesive layer to the lining side on the entire surface. On the other hand, when the adhesive layer is formed in a pattern other than the entire surface, the moisture permeability and texture of the clothing laminate can be improved. The pattern shape is not particularly limited, but examples include dots, lines, lattice, checkered patterns, and tortoiseshell patterns, and it is preferable that the adhesive layer is uniformly arranged on the entire clothing laminate.

[0053] When the adhesive layer is adhered in a pattern, the area occupied by the adhesive layer on the non-porous membrane or knitted fabric is preferably about 25 to 90% of the total area, more preferably 40 to 70%. If the coating area of ​​the adhesive layer is too small, peel resistance tends to decrease and moisture permeability tends to increase. On the other hand, if the coating area of ​​the adhesive layer is too large, peel resistance tends to increase and moisture permeability tends to decrease. In order to balance peel resistance and moisture permeability, the above range is preferable.

[0054] The thickness of the adhesive layer is generally preferably 5 to 100 μm, more preferably 10 to 70 μm, and particularly preferably 20 to 50 μm. If the thickness is less than 5 μm, it is difficult to obtain a durable laminate even if the adhesive occupies a large area. On the other hand, if the thickness of the adhesive layer exceeds 100 μm, the manufacturing cost increases, and the moisture permeability may decrease or the texture may become hard.

[0055] [Laminates for clothing] As described above, the clothing laminate of the present invention comprises an outer knitted fabric, a moisture-permeable barrier film, and an inner knitted fabric laminated in this order.

[0056] From the viewpoint of light weight, the laminate for clothing of the present invention is preferably as thin as possible. 2 The clothing laminate of the present invention, particularly when used for infection prevention clothing, must have a basis weight of 110 g / m 2 It is preferable that the thickness is less than 105 g / m 2 It is more preferable that the weight per unit area is 120 g / m or less. 2 If the basis weight is larger than 40 g / m, when the clothing laminate is used for infection prevention clothing, the lightweight property is insufficient, and the wearer feels fatigued and has poor comfort. On the other hand, if the basis weight is too small, the tensile strength, burst strength, and water pressure resistance are likely to decrease. For this reason, the basis weight is set to 40 g / m 2 More preferably, it is equal to or greater than this.

[0057] The laminate for clothing of the present invention has a moisture permeability of 15,000 to 53,000 g / m2 as a characteristic value for excellent moisture permeability, as measured according to the B-1 method (potassium acetate method) of JIS L 1099 (2012). 2 / 24h is preferable, and 20000 to 47000g / m 2 / 24h is more preferable. If the moisture permeability is below the above range, the moisture permeability is insufficient, so that the surface of the laminate is likely to condense, and when the clothing laminate is used as infection prevention clothing, etc., a stuffy feeling is likely to occur, which reduces wearing comfort. On the other hand, if the moisture permeability is above the above range, there is a risk that the desired waterproofness related to the barrier properties against blood and viruses cannot be obtained.

[0058] The laminate for clothing of the present invention has excellent stretchability. As characteristic values ​​showing this, it is preferable that the elongation rate in the vertical direction is 5 to 25% and the elongation rate in the horizontal direction is 10 to 45% as measured according to the B method of JIS L 1096. It is more preferable that the elongation rate in the vertical direction is 8 to 22%, and it is more preferable that the elongation rate in the horizontal direction is 15 to 42%. When the elongation rates in the vertical direction and the horizontal direction of the laminate for clothing satisfy the above ranges, when the laminate is used to make an infection prevention garment, the laminate stretches sufficiently in accordance with the movement of the wearer's body, so that the wearer can move more easily and is excellent in wearing comfort. When the elongation rate in the vertical direction of the laminate is 15% or less and the elongation rate in the horizontal direction is 30% or less, when a force is applied to the laminate during the movement of the wearer of the infection prevention garment, the water pressure resistance and blood and virus barrier properties can be prevented from decreasing due to the non-porous membrane becoming thinner.

[0059] As a characteristic value showing that the laminate for clothing has excellent stretchability, it is further preferable that the elongation recovery rate in both the vertical direction and the horizontal direction after one hour of unloading, measured according to the B-1 method of JIS L 1096, is 70% or more. In particular, from the viewpoint of wearing comfort, it is more preferable that the elongation recovery rate is 80% or more. If the elongation recovery rate is 70% or more, it can be said that the laminate has sufficient elasticity for practical use. Details of the method for measuring the elongation recovery rate will be described later.

[0060] As described above, the non-porous membrane in the laminate for clothing of the present invention does not have a number of micropores to satisfy the required moisture permeability. Therefore, the non-porous membrane, i.e., the laminate for clothing, has a good water pressure resistance, which is an index of virus barrier property and blood barrier property. In detail, the laminate for clothing of the present invention must have a water pressure resistance of 450 kPa or more when tested by JIS L 1092 (2009) B method (high water pressure method) as an index of water resistance, measured using a perforated plate as specified in JIS K 6404-3 6.3.1.4. Since the laminate for clothing of the present invention has high stretchability, the fabric stretches when measuring the water pressure resistance, so the water pressure resistance is measured using a perforated plate as described above. It is more preferable that this water pressure resistance is 500 kPa or more. By making the water pressure resistance 450 kPa or more, the laminate for clothing of the present invention exhibits excellent waterproofness and has excellent barrier properties against blood and viruses. In addition, since the non-porous film itself absorbs water molecules, it can also have excellent moisture permeability.

[0061] As a result, the clothing laminate of the present invention can exhibit performance such that the virus barrier property before the first washing passes the test of ASTM F1670-08B method, and the artificial blood barrier property before the first washing passes the test of ASTM F1671-07B method.

[0062] The laminate for clothing of the present invention has the above-mentioned laminate structure, and therefore has excellent washing durability. Specifically, when the laminate for clothing of the present invention is washed 50 times according to JIS L 0217 Method 103 and then hung to dry, the water pressure resistance of the laminate for clothing of the present invention measured according to JIS L 1092 (2009) Method B (high water pressure method) after hanging to dry is 350 kPa or more. Therefore, the infection-preventing clothing of the present invention composed of the laminate for clothing of the present invention also has particularly excellent washing durability.

[0063] The laminate for clothing of the present invention has the above-mentioned laminate structure, specifically, it is a laminate using a non-porous membrane, and since hydrolysis by ozone gas from inside the membrane does not occur as in the case of a microporous membrane, it has excellent durability to an ozone atmosphere. Specifically, the laminate for clothing of the present invention can be made to have a water pressure resistance of 350 kPa or more as measured by JIS L 1092 (2009) Method B (high water pressure method) after being left in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000.

[0064] Similarly, the clothing laminate of the present invention can be designed so that after being left in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000, the water resistance measured by JIS L 1092 (2009) Method B (high water pressure method) is 90% or more of the water resistance measured before being left.

[0065] Therefore, the infection-preventing clothing of the present invention, which is made of the clothing laminate of the present invention, also has excellent ozone resistance, and can be repeatedly subjected to sterilization, disinfection, and the like using ozone.

[0066] [Method of manufacturing laminate for clothing] Next, a method for producing the laminate for clothing of the present invention will be described by taking as an example a production method in which a lamination method is used as a method for forming a non-porous membrane on one surface of a knitted fabric.

[0067] In the lamination method, first, a resin composition for forming a nonporous film (for example, a resin composition containing a resin for forming a nonporous film and an organic solvent) is attached to the surface of a release material (such as release paper, release cloth, or release film). At this time, a nonporous film is formed while providing a clearance and adjusting the thickness, and then heat-treated to completely react and obtain a film. The release material can be appropriately removed after the nonporous film is bonded to the outer knit fabric or after aging.

[0068] Next, an adhesive layer is formed on the outer knitted fabric or the non-porous membrane. The adhesive layer can be formed by a method using a resin solution or a method using a hot melt.

[0069] For example, in the case of a method using a resin solution, a two-component curing polyurethane resin solution adjusted to a viscosity in the range of 500 to 5000 mPa·s is applied to the entire surface of the adhesive layer formation surface or in a pattern on the formation surface. The adhesive layer is then formed by drying. Once the adhesive layer is formed, the knitted fabric and the non-porous membrane are bonded together via the adhesive layer, and then pressure-bonded or thermo-press-bonded to obtain a laminate of the outer knitted fabric and the non-porous membrane.

[0070] In the case of the hot melt method, it is preferable to use a moisture-curing resin that reacts with moisture in the air. In practical use, it is more preferable that the moisture-curing resin melts at a temperature range of about 80 to 150 ° C. In this case, the hot melt resin is first melted while considering the melting point of the resin and the viscosity at the time of melting. Then, the molten resin is applied onto the knitted fabric or the non-porous film, and is matured while cooling at room temperature to form an adhesive layer. Then, the knitted fabric and the non-porous film are bonded together through the adhesive layer and pressed to obtain a laminate of the outer knitted fabric and the non-porous film.

[0071] Thereafter, the lining knitted fabric can be laminated to the imperforate membrane in the same manner as in the case of the outer knitted fabric.

[0072] [Technical effects of laminates for clothing and infection prevention clothing] As described above, the clothing laminate of the present invention has a non-porous film (moisture-permeable barrier film) and a lining knit laminated in this order on the outer knit fabric. That is, the clothing laminate of the present invention has a structure in which the non-porous film is sandwiched between knit fabrics. The reason for using two sheets of the outer knit fabric and the lining knit fabric in the clothing laminate of the present invention is to protect the non-porous film, since when one side of the non-porous film is used in an exposed state, the exposed non-porous film is easily deteriorated, such as peeling due to friction when it comes into contact with an object. In addition, the reason is to prevent discomfort caused by direct contact between the non-porous film and the skin surface or insufficient moisture permeability, which may occur when wearing clothing composed of the clothing laminate of the present invention.

[0073] The clothing laminate of the present invention is suitable for infection prevention clothing used in medical applications. This clothing has excellent waterproof properties that provide a barrier against blood and viruses, reduces stuffiness when worn, and has sufficient stretchability, making it easy to move around when working while wearing it, and is therefore comfortable to wear. The medical applications referred to here are not limited to the medical field targeting hospitals, but also include the surrounding fields of care, nursing, and pharmaceuticals. EXAMPLES

[0074] Various physical properties in the following Examples and Comparative Examples were measured by the following methods.

[0075] (1) Fineness Measurements were performed based on the provisions of JIS L 1013, 8.3.1.

[0076] (2) Observation of the thickness and cross-sectional structure of the non-porous membrane The cross section was photographed at a magnification of 2000 times using a Hitachi S-4000 field emission scanning electron microscope. From the obtained image, the thickness of the non-porous membrane was measured and the cross-sectional structure, i.e., the presence or absence of micropores, was observed.

[0077] (3) Weight of knitted fabrics, non-porous membranes, and laminates for clothing The obtained knitted fabric, nonporous membrane, and clothing laminate were measured in accordance with "8.3.2 Mass per unit area under standard conditions, Method A" of JIS L 1096 (2010) to calculate the basis weight of these knitted fabrics, nonporous membranes, and clothing laminates.

[0078] (4) Elongation rate The obtained laminate for clothing was cut into a size of 60 mm x 300 mm to prepare a test piece. The elongation percentage of this test piece was measured according to the method B described in 8.16.1 of JIS L 1096 (2010). Specifically, the elongation percentage was determined in both the longitudinal and transverse directions when the test piece was elongated to a tensile load of 14.7 N under conditions of a gripping distance of 200 mm and a pulling speed of 20 cm / min.

[0079] (5) Elongation recovery rate The obtained clothing laminate was cut into a size of 60 mm x 300 mm to prepare a test piece. The elongation recovery rate of this test piece was measured according to the B-1 method (constant load method) described in 8.16.2 of JIS L 1096 (2010). In detail, the test piece was fixed to the upper clamp, and after applying an initial load, the lower clamp was fixed. Next, marks were made on the test piece at intervals of 200 mm (L0), a load of 14.7 N was applied, and after leaving it for 1 hour, the length between the marks (L1) was measured. Next, the weight was removed, and after 1 hour, the initial load was applied, and the length between the marks (L2) was measured again, and the elongation recovery rate was calculated using the following formula. Elongation recovery rate (%)=[(L1-L2) / (L1-L0)]×100

[0080] (6) Breathability The obtained laminate for clothing was used as a test piece, and the moisture permeability was measured according to the method specified in JIS L1099, B-1 method (potassium acetate method) to evaluate the moisture permeability.

[0081] (7) Water resistance and washability The obtained clothing laminate was used as a test piece, and the water pressure resistance was measured using a mesh plate specified in 6.3.1.4 of JIS K 6404-3 in accordance with Method B (high water pressure method) specified in JIS L 1092 (2009) to evaluate the water resistance.

[0082] (8) Washability The obtained laminate for clothing was used as a test piece, and after washing 50 times according to JIS L 0217 Method 103 and hanging drying, the water pressure resistance was evaluated after hanging drying by measuring according to JIS L 1092 (2009) Method B (high water pressure method).

[0083] (9) Artificial blood barrier properties of clothing laminates: Measured according to ASTM F1671-07B test method.

[0084] (10) Virus barrier properties of clothing laminates: Measured according to ASTM F1670-08B test method.

[0085] (11) Ozone durability (water pressure resistance) of clothing laminates After leaving the specimen in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000, the water pressure resistance was measured using JIS L 1092 (2009) Method B (high water pressure method).

[0086] (12) Ozone durability of clothing laminates (water pressure resistance retention rate) After leaving the sample in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000, the water pressure resistance retention rate was calculated from the water pressure resistance measured according to JIS L 1092 (2009) Method B (high water pressure method) and the water pressure resistance measured before leaving the sample.

[0087] (13) Wearing comfort An infection prevention garment consisting of a long-sleeved top and pants was made using the clothing laminate. This infection prevention garment was worn by medical workers, who were asked to perform the same tasks as normal medical work for one day in a midsummer environment (temperature above 30°C) and to judge the wearing comfort (not feeling stuffy) and ease of movement, and the following two-stage evaluation was conducted. ○: Both comfort and ease of operation are good. ×: Both comfort and ease of operation are poor.

[0088] Example 1 [Preparation of outer knit fabric] A half tricot knitted fabric with a knitting structure of front reed: 1-2 / 1-0, back reed: 1-0 / 2-3 was knitted using a 28-gauge tricot knitting machine and nylon 6 multifilament raw silk of 33 dtex / 6f. The resulting fabric was dyed under known conditions to obtain a knitted fabric for the outer layer with a knitting density of 47 courses / 2.54 cm x 30 wales / 2.54 cm.

[0089] [Preparation of lining fabric] A half-tricot knitted fabric with a knitting structure of front reed: 1-2 / 1-0 and back reed: 1-0 / 2-3 was knitted using a 28-gauge tricot knitting machine and nylon 6 multifilament raw silk of 22 dtex / 7f. The resulting fabric was dyed under known conditions to obtain a lining knitted fabric with a knitting density of 47 courses / 2.54 cm x 30 wales / 2.54 cm.

[0090] [Production of non-porous membranes] A polyurethane resin solution for forming a nonporous membrane (solid content concentration 19 mass%, viscosity 3500 mPa s / 25°C) having the composition shown in Formulation 1 below was prepared and degassed. Then, the resin solution was applied at 100 g / m2 on a release paper using a comma coater. 2 and dried at 100° C. for 2 minutes to form a non-porous membrane with a thickness of 15 μm.

[0091] <Prescription 1> Water-swellable polyurethane resin 100 parts by weight (25% solids) Methyl ethyl ketone 30 parts by mass

[0092] [Lamination processing] A moisture-permeable polyurethane resin-containing adhesive solution (solid content concentration 37%, viscosity 4000 mPa s / 25°C) having the composition shown in Formulation 2 below was applied to the surface of the produced non-porous membrane that did not have a release paper at a rate of 30 g / m2 using a comma coater. 2 The adhesive layer was then coated with a lining fabric and dried at 90°C for 3 minutes to form an adhesive layer with a thickness of approximately 11 μm. The lining fabric was then laminated on top of the adhesive layer, and heat-pressed at a temperature of 90°C and a pressure of 294 kPa, followed by aging at 40°C for 4 days to obtain a laminate with a configuration of "lining fabric / adhesive layer / nonporous membrane."

[0093] <Prescription 2> Moisture-permeable polyurethane resin-containing adhesive 100 parts by mass (solid content 45% by mass) Isocyanate crosslinking agent 8 parts by weight Methyl ethyl ketone 30 parts by weight

[0094] The release paper of the obtained laminate was peeled off, and the non-porous membrane surface was coated with a moisture-curing polyurethane hot melt adhesive melted at 120°C using a gravure roll (20 mesh) engraved with a dot pattern, in an amount of 10 g / m. 2 Then, an outer knitted fabric was laminated on the coated surface and pressed at a pressure of 300 kPa, and then aged for 3 days in an environment of 40°C x 80% RH to obtain a clothing laminate of Example 1 having a laminate structure of "outer knitted fabric / adhesive / nonporous membrane / adhesive / lining knitted fabric."

[0095] The properties of the outer knitted fabric are shown in Table 1, the properties of the lining knitted fabric are shown in Table 2, and the properties of the moisture-permeable barrier film (non-porous film) are shown in Table 3.

[0096] [Table 1]

[0097] [Table 2]

[0098] [Table 3]

[0099] The properties of the clothing laminate of Example 1 are shown in Tables 4 and 5.

[0100] [Table 4]

[0101] [Table 5]

[0102] Example 2 Compared to Example 1, the outer knit fabric was changed as follows. That is, a multifilament having a total fineness of 22.0 dtex / 7f was obtained using nylon 6 fiber having a single yarn fineness of 3.1 dtex. This multifilament was used to obtain a tricot knit fabric having a knitting density of 45 courses / 2.54 cm×31 wale / 2.54 cm. This knit fabric was used as the outer knit fabric. As the lining knit fabric, a tricot knit fabric having a knitting density of 45 courses / 2.54 cm×31 wale / 2.54 cm was obtained using the same filament as in Example 1. This knit fabric was used as the lining knit fabric.

[0103] Other than that, the same procedures were followed as in Example 1 to obtain a laminate for clothing of Example 2.

[0104] The properties of the outer knitted fabric in Example 2 are shown in Table 1, the properties of the lining knitted fabric in Example 2 are shown in Table 2, and the properties of the moisture permeable barrier film in Example 2 are shown in Table 3. The properties of the clothing laminate in Example 2 are shown in Tables 4 and 5.

[0105] Comparative Example 1 [Preparation of resin composition for forming microporous membrane] 30 parts by mass of an ester-type polyurethane resin solution using N,N-dimethylformamide as a solvent (Seiko Chemical Industries, Ltd.'s "Luckskin UJ8517", solid content 25% by mass), 10 parts by mass of fumed silica fine powder (Nippon Aerosil Co., Ltd.'s "AEROSIL R974", average primary particle diameter 12 nm), and 10 parts by mass of N,N-dimethylformamide were mixed. The mixture was roughly kneaded and then uniformly kneaded using a three-roll mill to prepare 50 parts by mass of resin solution A.

[0106] 0.1 parts by mass of an oil-soluble and water-soluble fluorosurfactant ("SURFLON S-386" manufactured by AGC Seimi Chemical Co., Ltd.) was dissolved in 35 parts by mass of N,N-dimethylformamide, and then 5 parts by mass of a fluororesin water repellent emulsion ("NUVA N2114 LIQ" manufactured by Clariant Japan Co., Ltd.) was mixed and dispersed to prepare 40.1 parts by mass of resin solution B.

[0107] Resin solution A and resin solution B were mixed according to the following <Formulation 1>, and then stirred with a Disper-type stirrer while vacuum degassing to prepare a polyurethane resin composition for forming a microporous membrane. This polyurethane resin composition had a solid content of 23 mass%, a viscosity of 10,000 mPa s / 25°C, and, based on the solid content, the fluorine-based water repellent content was 5 mass%, the oil-soluble and water-soluble fluorine-based surfactant content was 0.3 mass%, and the silica fine powder content was 30 mass%.

[0108] <Prescription 1> Ester-type polyurethane resin solution 50 parts by weight (Seiko Chemicals "Luckskin UJ8517", solid content 25% by mass) Resin solution A 50 parts by mass Resin solution B 40.1 parts by mass Isocyanate compound 1.5 parts by mass (Dainichi Seika Chemicals "Rezamin X Crosslinking Agent")

[0109] [Production of microporous membranes] The calendared side of the release cloth is used as the coating surface, and a coating amount of 100 g / m is applied using a comma coater. 2 The polyurethane resin composition of <Formulation 1> was applied to the substrate. The polyurethane resin composition was coagulated by immersing the substrate in a coagulation bath of a 15% by mass aqueous solution of N,N-dimethylformamide (20°C) for 2 minutes. The substrate was then washed with hot water at 50°C for 5 minutes. The substrate was then squeezed with a mangle to remove water, and then dried at 130°C for 2 minutes to form a microporous film on the surface of the release cloth. The substrate was then set at 170°C for 1 minute, and after the substrate returned to its normal state, the release cloth was peeled off to obtain a microporous film.

[0110] The obtained microporous membrane had an average thickness of 30 μm and a basis weight of 25 g / m 2 A large number of micropores with a diameter of 1 μm or less were formed throughout the film.

[0111] The obtained microporous membrane was then bonded to the outer knit fabric of Example 2. In detail, a moisture-curable polyurethane hot melt adhesive ("Takemelt MA3229" manufactured by Mitsui Takeda Chemical Co., Ltd.) melted at 120°C was applied to the outer knit fabric of Example 2 using a gravure roll (20 mesh) engraved with a dot pattern in an amount of 10 g / m. 2 The above-mentioned microporous membrane was then laminated on the coated surface and pressed at a pressure of 300 kPa, and then aged for 3 days in an environment of 40°C x 80% RH to obtain a laminate of "surface knitted fabric / adhesive / microporous membrane."

[0112] The lining knitted fabric of Example 2 was laminated on the microporous membrane surface of this "outer knitted fabric / adhesive / microporous membrane" in a similar manner to obtain a clothing laminate of Comparative Example 1 having a laminated structure of "outer knitted fabric / adhesive / microporous membrane / adhesive / lining knitted fabric."

[0113] The properties of the outer knitted fabric in Comparative Example 1 are shown in Table 1, the properties of the lining knitted fabric in Comparative Example 1 are shown in Table 2, and the properties of the moisture permeable barrier film in Comparative Example 1 are shown in Table 3. The properties of the clothing laminate in Comparative Example 1 are shown in Tables 4 and 5.

[0114] Comparative Example 2 Compared to Comparative Example 1, the outer fabric was changed from knitted fabric to woven fabric. In detail, nylon 6 fiber with a single yarn fineness of 1.6 dtex was used to obtain a filament with a total fineness of 22.0 dtex / 14 f. Using this filament, a woven fabric with a horizontal density of 167 f / 25.4 mm and a vertical density of 227 f / 25.4 mm was obtained. This woven fabric was used as the outer fabric.

[0115] Other than that, the same procedures were followed as in Comparative Example 1 to obtain a laminate for clothing of Comparative Example 2.

[0116] The properties of the outer fabric in Comparative Example 2 are shown in Table 1, the properties of the lining knit in Comparative Example 2 are shown in Table 2, and the properties of the moisture permeable barrier film in Comparative Example 2 are shown in Table 3. The properties of the clothing laminate in Comparative Example 2 are shown in Tables 4 and 5.

[0117] As shown in Tables 4 and 5, the clothing laminates of Examples 1 and 2 both had the required moisture permeability and were excellent in elongation rate and elongation recovery rate. In addition, they had sufficient water pressure resistance, which gave them excellent blood barrier property and virus barrier property, and they maintained the required blood barrier property and virus barrier property even after 50 washes, giving them excellent washing durability. They also had good ozone durability.

[0118] The clothing laminate of Comparative Example 1 had a moisture-permeable barrier film made of a polycarbonate-based polyurethane resin and had micropores, and therefore the water resistance was reduced by the presence of the micropores, and the water pressure resistance was reduced compared to the clothing laminates of Examples 1 and 2. Although the blood barrier property and virus barrier property were both "passed," the performance was not as good as that of the clothing laminates of Examples 1 and 2 due to the reduced water pressure resistance. In addition, the clothing laminate of Comparative Example 1 had a significantly reduced water pressure resistance after 50 washes compared to the initial water pressure resistance before washing, because surfactants and water entered the microporous parts of the moisture-permeable barrier film during washing, causing the pore size to expand.

[0119] The clothing laminate of Comparative Example 2 had a moisture-permeable barrier film made of a polycarbonate-based polyurethane resin and had micropores. In addition, a woven fabric was used as the outer fabric instead of a knitted fabric. As a result, the laminate did not stretch because the outer fabric was a woven fabric. In addition, because the outer fabric was a woven fabric and the laminate did not stretch, the initial water pressure resistance before washing showed performance comparable to that of Examples 1 and 2, even though the moisture-permeable barrier film was made of a polycarbonate-based polyurethane resin and had micropores. However, the water pressure resistance after 50 washes was significantly lower than the initial water pressure resistance before washing, because surfactants and moisture entered the microporous parts of the moisture-permeable barrier film during washing, expanding the pore size, as in Comparative Example 1.

[0120] In the clothing laminates of Comparative Examples 1 and 2, hydrolysis by ozone gas progressed from the microporous parts of the moisture-permeable barrier film, causing the moisture-permeable barrier film to deteriorate, so that the water resistance after being left in an ozone atmosphere was 0 kPa. This water resistance of 0 kPa means that when the clothing laminate gets wet, water penetrates from the front surface of the clothing laminate through the moisture-permeable barrier film to the back surface.

[0121] In the clothing laminate of Comparative Example 2, the outer fabric was a woven fabric rather than a knitted fabric, and so the stretchability was correspondingly reduced, resulting in a rating of "X" for comfort.

Claims

1. A clothing laminate comprising an outer knitted fabric, a moisture-permeable barrier film, and an inner knitted fabric laminated in this order, The outer knitted fabric and the lining knitted fabric are mainly made of polyamide fibers, The moisture-permeable barrier film is mainly composed of polyurethane resin, The clothing laminate has a basis weight of 120 g / m ２ The laminate for clothing has a water pressure resistance of 450 kPa or more when tested according to JIS L 1092 (2009) Method B (high water pressure method) using a perforated plate specified in JIS K 6404-3, 6.3.1.

4.

2. Moisture permeability measured by JIS L 1099 (2012) B-1 method (potassium acetate method) is 15,000 to 53,000 g / m ２ 2. The clothing laminate according to claim 1, wherein the moisture-permeable barrier film has a moisture permeability of 24 h / 24 h and does not have a number of micropores sufficient to satisfy the moisture permeability.

3. The laminate for clothing according to claim 1 or 2, wherein the elongation rate in the warp direction is 5 to 25% and the elongation rate in the lateral direction is 10 to 45%, as measured by JIS L 1096 (2010) Method B.

4. 3. The laminate for clothing according to claim 1, which has an elongation recovery rate of 70% or more in both the warp and weft directions one hour after removal of the load, as measured according to JIS L 1096 B-1 method.

5. 3. The laminate for clothing according to claim 1 or 2, wherein the virus barrier property before the first washing passes the test of ASTM F1670-08B method, and the artificial blood barrier property before the first washing passes the test of ASTM F1671-07B method.

6. 3. The laminate for clothing according to claim 1 or 2, which, when washed 50 times according to JIS L 0217 Method 103 and then hung to dry, has a water pressure resistance of 350 kPa or more as measured according to JIS L 1092 (2009) Method B (high water pressure method) after the hung to dry.

7. The clothing laminate according to claim 1 or 2, wherein the water pressure resistance measured by JIS L 1092 (2009) Method B (high water pressure method) after being left in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000 is 350 kPa or more.

8. 3. The clothing laminate according to claim 1 or 2, wherein the water resistance measured by JIS L 1092 (2009) Method B (high water pressure method) after being left in an ozone atmosphere with an exposure concentration of 2.0 ppm and a CT value of 5000 is 90% or more of the water resistance measured before being left.

9. An infection-preventing garment comprising the clothing laminate according to any one of claims 1 to 8.

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