WO2008018335A1 - Gloves and process for production thereof - Google Patents

Abstract

[PROBLEMS] To provide gloves which are made by using a thin textile as the base material and therefore have such strength as not to cause breakage easily, a small thickness, and softness inherent in textile; which are produced by the steric forming of coating raw gloves in a state applied to hand models and therefore have advantages that the gloves enable good working owing to their excellent fitness to the hands, that they exhibit such moisture permeability and waterproofness as not to cause sweatiness or the invasion of water from the outside, that they little suffer from the peeling and breakage of coating layers by immoderate tension or external force, and that they can be used repeatedly through cleaning or washing; and which do not cause sweatiness even in long-time use and enable minute working such as touch panel operation in a clean room, and a process for the production of the gloves. [MEANS FOR SOLVING PROBLEMS] Gloves produced by making a raw glove of a textile having a tensile strength of 170% or above in the warp direction and a thickness of 500μm or below, covering the raw glove with a foamed urethane resin layer by a wet film-formation method through impregnation, and then forming a nonporous, moisture-permeable and waterproof polyurethane resin layer on the foamed urethane resin layer.

Description

 Specification

 Gloves and manufacturing method thereof

 Technical field

 The present invention relates to a hand bag suitable for work in a clean room and work equivalent thereto, and a method for manufacturing the hand bag.

 Background art

 [0002] From the viewpoint of workability, this type of glove is required to have a performance that stretches well and fits the fingers and provides a fine work sensation. Gloves are provided (see, for example, Patent Document 1).

 [0003] However, gloves composed of only resin or rubber are easy to tear due to excessive pulling at the time of attachment and detachment, and are damaged from places where stress forces such as fingertips are easily applied even after use. It was difficult to use. In addition, these gloves made of chlorinated bur resin, NBR rubber or natural rubber have a problem that it is hard to be used continuously for a long time.

 [0004] On the other hand, a sheet in which a thin film is bonded on a thin fiber fabric and finished in a glove shape by heat fusion so that the films face each other is also known (for example, see Patent Document 2). ). However, in the case where the resin or rubber film is bonded to the surface of the fabric in this way, the adhesion between the fiber and the film is not sufficient. There was. In addition, since the strength of the glove-like heat-sealed part is not sufficient, it is strongly required from the outside, is resistant to force, has disadvantages, and has been particularly demanded in recent years! There was a fault that could not stand. Furthermore, the glove-like method involves heat-sealing a sheet of the same shape in a flat shape with the film facing each other, and then turning it over to finish it into a glove. There were drawbacks that made it difficult to work and poor workability.

[0005] Thus, if the thickness of the film is increased in order to increase the strength against the force from the outside of the film, the glove becomes hard and does not fit in the hand, resulting in poor workability. In addition, if the width of the fused part is widened to increase the strength of the fused part, the glove will go loose and not fit in the hand. Further In addition, since this glove is not a solid but a flat glove, it does not fit in the hand and the workability is bad V, and the drawbacks are difficult to solve!

[0006] Patent Document 1: Japanese Patent Laid-Open No. 11-12823

 Patent Document 2: JP-A-6-33303

 Disclosure of the invention

 Problems to be solved by the invention

[0007] Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem by reducing the thickness of the glove while providing strength that does not easily break by using a thin fiber fabric as a base. Combined with the three-dimensional molding that coats the original hand after covering it with a hand mold, the original softness and strength of the fabric is applied, and it fits in the hand and has good workability. Even if it is used for a long time that the coating layer does not easily peel or break due to excessive tension or external force, and can be reused many times for washing and washing. The point is to provide a glove that does not stuffy and can be finely worked, such as a touch panel in a clean room, and a manufacturing method thereof.

 Means for solving the problem

 [0008] In order to solve the above-mentioned problems, the present invention comprises a glove-like hand from a fiber fabric having a longitudinal tensile elongation of 170% or more and a thickness of 500 in or less. A glove having a hand impregnated with a foamed urethane resin layer was constructed. Here, the tensile elongation refers to the elongation when a point between two points on the fabric is approximately 5 mm wide and 2.5 kg. For example, when the original distance lcm becomes 2 cm by pulling (original distance) 200%), the tensile elongation is 200%. The vertical direction is a direction along the length direction of the finger. The thickness of the fiber fabric is the thickness measured according to JIS L 1096.

 Here, it is preferable that a non-porous moisture-permeable and waterproof polyurethane resin layer is further coated on the foam layer.

 [0010] Further, the fiber fabric may be made of wooly polyester or wooly nylon.

Or, a fabric made by combining these and urethane elastic yarn is preferable.

[0011] Further, in most regions excluding the fingertip portion, finger crotch portion and sewing portion, the thickness of the glove including the film-formed foam layer and the polyurethane resin layer is 500 am or less. preferable. Here, the thickness of the glove refers to the thickness measured according to JIS K 6250.

[0012] Further, the present invention comprises a glove-like hand made from a fiber fabric having a longitudinal tensile elongation of 170% or more and a thickness of 500 m or less, and urethane foam is foamed on the hand. Also provided is a method of manufacturing a glove characterized in that the layer is impregnated. Here again, preferably, a nonporous moisture-permeable waterproof polyurethane resin layer is further deposited on the foamed layer.

 The invention's effect

 [0013] According to the glove and the manufacturing method according to the present invention as described above, it is possible to obtain a glove that is thin but strong because it is based on a hand that is a fabric cloth sewn into a glove shape! In addition, since the foamed urethane resin is impregnated and applied to the fabric, the adhesiveness is significantly improved while maintaining flexibility compared to the conventional method in which only the vicinity of the fabric surface is adhered, and the heat fusion part There is no problem of fusion strength because it is a manufacturing method! /.

 [0014] Also, make your hands with long fiber fabrics! /, Sewing sewing machines that are less dusty! /, And the edges are fixed by impregnation with resin, so there is no dust generation from them. It can be used as a glove that can be used well as a clean room glove and has improved durability, and can be reused many times by washing and washing, which has been particularly demanded in recent years.

 [0015] Further, since the impregnated layer is foamed, a soft glove having excellent overall elongation can be constructed without impairing the original elongation characteristics of the fabric having a tensile elongation of 170% or more. Therefore, it is possible to provide gloves that fit well in the hand, have good workability, and are comfortable to fit, both for those with slightly larger hands. In addition, it is possible to construct a glove that can maintain an excellent fit feeling to the steam compared to conventional film gloves.

 [0016] Further, when a coating layer (nonporous moisture-permeable waterproof polyurethane resin layer) is formed, the degree of adhesion is higher than that of a conventional method in which the coating layer is directly coated only on the cloth due to the presence of the impregnation layer. Is further improved. Accordingly, the coating layer itself can be thinned, and a glove having a thin and soft fit as a whole can be provided. Specifically, it has been confirmed that the coating layer of the present invention can provide a glove having a good workability that is soft and fits in the hand with a thinness of about 10 to 30 m and sufficient adhesion and strength.

[0017] In addition, since the adhesion strength of the coating layer is improved by the presence of the impregnation layer, the coating layer does not easily peel off even when a glove is pulled or an external force is applied, and the fused portion is peeled off. Since there is no separation, the durability is improved, and it can be reused many times by washing and washing. Since the impregnated layer is foamed and the coating layer is thin with a non-porous moisture-permeable waterproof resin with hydrophilic groups, the entire glove can be given moisture permeability and waterproofness, making it more sultry than conventional film gloves. 《Can maintain excellent fit.

 Brief Description of Drawings

 [0018] FIG. 1 is an enlarged photograph of the glove surface after the test with the number of friction of “100”, (a) is Example 1, (b) is Comparative Example 3, (c) is Comparative Example 4, ( d) Photo of Comparative Example 5.

 [Fig. 2] An enlarged photograph of the surface of the glove after the test with the number of friction of “400 times” for Example 1, (a) is 25 magnifications, and (b) is 100 magnifications.

 BEST MODE FOR CARRYING OUT THE INVENTION

 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

 [0020] The glove according to the present invention comprises a glove-like hand made of a fiber fabric having a longitudinal tensile elongation along the finger length direction of 170% or more and a thickness of 500 m or less. The raw hand is impregnated with a foam layer of urethane resin. The foam layer is a urethane film wet film-forming foam layer. Preferably, a non-porous moisture-permeable and waterproof polyurethane resin layer is further deposited on the foam layer. In the following embodiments, a force-separate hand that explains an example using a sewing hand can also be used.

 [0021] The fiber fabric constituting the hand is preferably a fabric made of woolly polyester or woolly nylon, or a fabric made by combining these with urethane elastic yarn.

 [0022] If the tensile elongation in the longitudinal direction of the raw cloth is less than 170%, the elongation of the finger part of the glove is particularly bad, and the flexibility of the finger part is poor and the fitting comfort is lowered. More preferably, it is set to 200% or more. In addition, if the thickness of the fabric is thicker than 500 m, the flexibility of the finger part is lowered, and the fit feeling is lowered with the feeling of stickiness and workability is also lowered. More preferably set to 400 in or less

[0023] And, in most regions excluding the fingertip portion, the finger crotch portion and the sewing portion, the thickness of the glove including the film-formed foam layer and the polyurethane resin layer is 500 m or less, more preferably 400 Hm or less. Set to

Example [0024] Next, various tests performed on the gloves of Examples and Comparative Examples will be described.

[0025] In Examples 1 and 2 and Comparative Examples 1 and 2, each of the textile fabrics shown in Table 1 is composed of a glove-like hand, and a urethane resin foam layer is impregnated and adhered to the hand. Further, a non-porous moisture-permeable and waterproof polyurethane resin layer is further applied.

[0026] [Table 1]

[0027] (Making and scouring the hand)

 Fabrics that have been punched into a glove shape are sewn to produce a fiber glove, and then the scouring process is performed on the produced sewing hand. Scouring is performed at 85 ° C to 95 ° C for 15 minutes using lg / L of a scouring agent (“SSK-15” manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) in 30 times the weight of the original hand. Done.

 [0028] After scouring, waste water treatment is performed, and then a rinsing treatment is performed. Rinsing is performed at room temperature for 3 minutes using 30 times the weight of the hand. After rinsing, it is drained and then dehydrated and dried at 110 degrees for 10 minutes.

 [0029] (Impregnation of foam layer)

 A wet film-formable urethane resin (Dainippon Ink Chemical Co., Ltd. “Crisbon 8006HVLD”) 10wt% with the above-mentioned hand over an aluminum hand mold and the hand mold with the master hand dissolved in a mixed solvent of DMF and toluene Immerse it in a solution (resin 10wt%, DMF85wt%, toluene 5wt%) at 4mm / sec, pull it up at 4mm / sec, soak it in warm water at 50 ° C for 60 minutes, and replace the solvent DMF in the resin solution with water. Then, pull up from the water, dry at 110 ° C for 10 minutes, and cool to a hand mold temperature of around 50 ° C with a fan.

[0030] (Adhesion of non-porous moisture-permeable and waterproof polyurethane resin layer) Next, 10 wt% solution (resin 10 wt%, IP A43. 6 wt%, xylene 30 wt%) polyurethane resin for dry processing dissolved in a mixed solvent of xylene / IPA ("Crisbon NYT-18" manufactured by Dainippon Ink & Chemicals, Inc.) , Toluene 13.7wt%, DMF2.7wt%) 12mm / sec, pulled up at 4mm / sec, dried at 110 ° C for 20 minutes, cooled to a temperature that can be removed with a fan, and then released To do.

 [0031] (Fitting comfort test)

 For each glove of Examples 1 and 2 and Comparative Examples 1 and 2 created as described above, the results of testing the thickness of the glove, the tensile elongation in the longitudinal direction, and the fitting comfort of the glove (finger bending / extensibility) Shown in 2. The fitting comfort was evaluated by five panelists in three stages: “◯”… good, “△” ··· Slightly dissatisfied, “Χ” ··· Evil! /.

 [0032] [Table 2]

[0033] As can be seen from the results in Table 2, in Examples 1 and 2, in Example 1, the stretch in the longitudinal direction of the fabric is larger, and the elongation of the glove fingers is also larger as 175. It became a comfortable glove. Compared to this, Example 2 is sufficient for use in a clean room with a little dissatisfaction. In Comparative Example 1, since the tensile elongation in the longitudinal direction of the fabric is small, the elongation of the finger part of the glove is deteriorated, and therefore, the flexibility of the finger part is poor and the fitting comfort is considered to be affected. In Comparative Example 2, although the elongation is sufficient, the fabric thickness is as large as 680 m, and the volume of the impregnated layer that penetrates further increases. Seems to have gone bad.

 [0034] (Tensioning, tearing, dust resistance test)

Table 4 below shows the results of the tensile test, tear test, and dust resistance test performed on the gloves of Example 1 and Comparative Examples 3 to 5. [0035] The gloves of Comparative Examples 3 to 5 are those described in Patent Document 2 described above, which are finished in a glove shape by heat fusion so that the films face each other from a sheet obtained by laminating a thin film on a thin fiber fabric. It is the conventional fusion glove for clean rooms illustrated. Comparative Example 3, the trade name of "Prof _eS io n on seam glovesj (Co., Ltd. Goldwyn), Comparative Example 4, the trade name" MX203 "(stock company made Max), Comparative Example 5, the trade name of" VIOMAC BION II ”(Kondo Kogyo Co., Ltd.) Table 3 below shows the measurement results of the thickness of each glove (measured in accordance with the JIS K 6250A method) and longitudinal bow I tension.

 [0036] [Table 3]

[0037] For the tensile test, prepare a test piece (1. Ocm x 10cm) including a sewn or fused part of each glove, perpendicular to the sewn or fused part at a pulling speed of 15cm / min and a distance between chucks of 6cm. The sample was pulled in the direction, and the resistance until the specimen started to tear was measured.

 In addition, the tear test involves preparing a test piece (5. Ocm x 10 cm) that includes a sewn or fused part of each glove, making a tear along the sewn or fused part, and then both ends at the boundary of the tear. The part was supported, pulled at a pulling rate of 15 cm / min, and a distance between chucks of 6 cm. Also, in the dust resistance test, 20 gloves were prepared in accordance with JIS B 9923, and the number of dusts of 0.3 am or more in the first and third washing was measured.

[0038] [Table 4] Tensile test Tear test Dust resistance test (number)

 (kgf / cm (kgf / cm) 1st 3rd Example 1 3.7 2.0 25 24 Comparative Example 3 1.2 0.63 130 176 Comparative Example 4 0.92 0.5 1 729 526 Comparative Example 5 0.79 0.52 142 59

[0039] As can be seen from the results in Table 4, Example 1 has a durability about 3 to 4 times that of the fused gloves of Comparative Examples 3 to 5, both in terms of tension and tear. In each test, Comparative Examples 3 to 5 were actually torn along the fused part, whereas Example 1 was torn apart from the sewn part. Thus, in Example 1, the sewing part has higher durability than the other parts, and the sewing part of Example 1 has a durability far exceeding the above 3 to 4 times compared to Comparative Examples 3 to 5. It has the power S component power. From the above, the glove according to the present invention is provided with an impregnation layer and a coating layer on the original hand sewn in the shape of a glove having a heat fusion part as in Comparative Examples 3 to 5, so that the original hand The sewing part of the resin is impregnated with resin!

[0040] In addition, the results of the dust generation resistance test are also considerably smaller in Example 1 than in the gloves of Comparative Examples 3 to 5, which is very excellent in dust generation resistance and a clean room with a cleanness of 100 is sufficient. It can be seen that it is a glove that can be used. As a result, the sewing part in which the glove of the present invention is sewn with the sewing machine is also fixed by impregnation with the resin! /, Thus preventing dust generation! / And sewing. It can be seen that the wet hand film-forming foam layer of urethane resin is impregnated in the hand and the generation of fabric scraps from the inside of the gloves is also prevented.

 [0041] (Abrasion resistance test)

In addition, FIGS. 1 and 2 show the results of the abrasion resistance test performed on the gloves of Example 1 and Comparative Examples 3 to 5. The abrasion resistance test method is the CE test EN388, using the test equipment “Nu_ MartindaleJ (manufactured by James H. Heal & Co. td.), And the abrasive paper is water resistant paper (3M sandpaper (dry & wet)). ) # 2000) Figure 1 is an enlarged photograph (100 magnifications) of the glove surface after the test with 100 times of friction, (a) in Example 1 and (b) in comparison. Examples 3 and (c) are Comparative Example 4 and (d) is Comparative Example 5. Figure 2 shows Example 1 This is an enlarged photograph of the surface of the glove after the test with the number of frictions “400”, (a) is 25 times magnification and (b) is 100 magnifications. In Comparative Examples 3 to 5, since the damaged part occurred at the number of wear “100 times”, it was not continued and the number of wear was not made “400 times”.

[0042] The glove of Example 1 showed no damage to the surface coating even when the number of friction was "400". As for the gloves of Comparative Examples 3 to 5, as shown in FIG. As a result, the glove according to the present invention has a coating layer that adheres to the impregnation layer impregnated into the fiber fabric and can be coated even when a force is applied from the outside, compared to a fusion glove that is directly applied only to the fabric. It can be seen that the layer does not peel easily, the durability is improved, and it can be reused many times by washing and washing, which has been particularly demanded in recent years.

Yes

 [0043] (Air leak test)

 Table 5 shows the results of the air leak test for the gloves of Example 1 and Comparative Examples 3 to 5. The air leak test was conducted with 10 gloves each in accordance with CE test EN374-2.

[0044] [Table 5]

表 5より、実施例 1の手袋は十分な耐水性を有しており、本発明の手袋が、比較例 3 〜5のような熱融着部がなぐ手袋状に縫製した原手に含浸層、コーティング層をそ れぞれ設けたものであることから、エアリークの原因となりやすい繋ぎ部分 (縫製部分 )も樹脂の含浸で高レ、強度および耐水性を有して!/、ること力 S分力、る。

From Table 5, the glove of Example 1 has sufficient water resistance, and the glove of the present invention is impregnated on the original hand sewn into a glove shape having a heat-sealed portion as in Comparative Examples 3 to 5. Since each coating layer is provided, the joints (sewing parts) that are likely to cause air leaks are also impregnated with resin and have high resistance, strength and water resistance! A force.

Claims

The scope of the claims  [1] A hand in the shape of a hand bag is formed from a fiber fabric having a longitudinal tensile elongation of 170% or more and a thickness of 500 m or less, and a foam layer of urethane resin is impregnated on the hand Let the gloves.  [2] The glove according to claim 1, wherein a nonporous moisture-permeable waterproof polyurethane resin layer is further coated on the foamed layer.  [3] The glove according to claim 1 or 2, wherein the fiber fabric is a fabric made of woolly polyester or woolly nylon, or a fabric made by combining these with urethane elastic yarn. [4] In any one of claims 1 to 3, wherein the thickness of the glove including the foamed layer and the polyurethane resin layer is 500 m or less in most regions excluding the fingertip portion, the finger crotch portion, and the sewing portion. The listed gloves. [5] A hand in the form of a hand bag is formed from a fiber fabric having a longitudinal tensile elongation of 170% or more and a thickness of 500 m or less, and a urethane resin foam layer is impregnated and attached to the hand A glove manufacturing method characterized by having  6. The method for producing a glove according to claim 5, wherein a nonporous moisture-permeable waterproof polyurethane resin layer is further applied after impregnating and attaching the foam layer.