SU1369661A3 - Wearing apparel affording protection from cuts - Google Patents

Abstract

A protective garment 10, such as a glove, arm guard or the like of wire 24 and fiber strands 26, 28, 30 and an elastomeric coating 16. The preferred garment is knitted from yarn 12 having a core 22 of one or more wire strands 24 and a fiber strand 26, and two wrappings of fiber strands 28, 30, preferably polyester. The knitted garment is coated, preferably by dipping in nitrile rubber, and the coating is cured in place. The garment is highly cut-resistant, nonabsorbent, highly slip-resistant, light in weight and flexible.

Description

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This invention relates to protective haberdashery articles, preferably gloves, is of high strength, flexible haberdashery, relatively light in weight, with significantly increased notch resistance, moisture and oil resistant, nonabsorbent, slip resistant, durable, comfortable to wear and wear. and economical in production.

The purpose of the invention is to increase the notch resistance.

Figure 1 shows the glove, a vertical section; 2 shows the structure of the material from which the glove is drawn; on fig.Z - the structure of the yarn, from which the glove is made.

In a haberdashery product for protection against cuts, mainly gloves, at least the working part of which consists of an envelope 2 connected to a fabric lining 1, which is on the outer surface of an elastomeric coating 3, the envelope 2 is made of yarn containing a core 4 of at least one the filaments 5 of the flexible wire with the coating and of at least one spirally wound fiber string 6, while the sheath 2 is impregnated with an elastomer coating 3 and connected therewith to the fabric lining 1. The sheath 2 is The lining 1 is preferably filled from a knitted fabric and then placed inside the casing 2. The elastomeric coating 3 is located on the entire outer surface of the casing, at least to the edge, of the cuff of the cuff, where the lining 1 is attached to the knitted glove with the blanking line 7. The coating 3 is preferably dipped by the shell 2 and together with it the lining 1 into a suitable coating material in a liquid state, remove them from the material and allow the coating to harden or cure in situ formation of the coating. The cover material penetrates through the closed fabric and secures the lining 1 in place, but does not penetrate through the lining itself (shown schematically in FIG. 2).

The core 4 is formed from a plurality of parallel wire filaments 5

and a fiber yarn 8 arranged parallel to them. The core 4 is placed in the opposite directions of the fiber yarns 6 and 9, which are wound in opposite directions, the thread 6 being placed directly on the core 4, and the thread 9 is an external thread located on the iichi 6 in the opposite direction along spirals.

The wire filaments 5 are flexible, durable and have a high corrosion resistance. The preferred wire strand material is grade 304 stainless steel, fully annealed stainless steel wire. In the proposed embodiment, used four wire strands. However, the number of wire strands can range from 1 to 20, but typically 2 to 6 strands are used. The diameter of the wire strands 5 may be 0.001-0.010 inches (0.0025-0.0254 cm), 0.002-0.006 inches

(0.0051-0.0152 cm) and most preferably 0.008 in. (0.0076 cm).

Wire with a diameter of less than 0.002 inch (0.005 cm) is not durable enough, is more expensive and does not give

noticeable advantages over large wire diameters. A wire with a diameter greater than 0.006 inches (D, 0152 cm) has significantly less flexibility. The total diameter of a single wire yarn or multiple wire yarns grouped to form core 4 should not exceed 0.02 inches, not counting the fiber yarn 8, and preferably should be less than 0.01 inch (0.024 cm) to facilitate working with yarn relative to small overall diameter in knitwear production. Stainless steel wire thread is applicable to products used in the food industry, where corrosion and food contamination should be avoided and frequent washing is required. In other

Application fins are suitable other materials, for example steel, titanium and other metals that can be used, provided they have sufficient flexibility and strength to

yarn taste and use of haberdashery.

Parallel fiber thread 8 has high tensile strength, is relatively non-absorbent.

and is a multifilament complex synthetic polymer fiber, mainly having a number of 80O-1500 denier. Suitable gut fibers include polyester, aramid multifilament yarns (aromatic polyamides and polyamide fibers. Preferred is a polyester fiber of about 1000 denier, which is free from the disadvantages of aramid fiber.

Complex thread 8 in the core provides certain advantages. The multifilament yarn is continuous, unlike the staple yarn, and slips and / or flows with other parts of the core during the manufacture and subsequent use of the product made from the yarn. The high strength multifilament yarn perceives the main tensile load to which the yarn is subjected to 35

knitwear and subsequently for any given number in the final use of the product. The multifilament yarn also increases the flexibility of the central part of the yarn relative to the core, which is completely made of metal, and thus makes it easy to open. In addition, the fiber yarn of the core improves the basic quality of the yarn, contributing to a more even wrapping in the yarn twisting process. Wrapping is the process of wrapping the core with a filament. In the case of a wire core, the first winding or wrapping thread 6 slides in the longitudinal direction and the fiber thread Q of the core provides a much greater uniformity with close proximity or contact between adjacent winding threads around the core. In addition, the presence of a fiber yarn in the core provides a cushioning effect that contributes to the resistance of the notch wire.

Fibrous filaments 6 and 9 are made of synthetic polymer fibers. Each thread or strand is formed from twisted filament yarns. Composite or spun polyester or polyamide fibers are fibers suitable for wrapping. Each thread 6 and 9 is numbered 210-630 denier, and in the preferred embodiment 440 denier. Filaments 6 and 9 are preferably polyester. Ho45

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Both yarns 6 and 9 are wound to ensure that consecutive turns are adjacent to each other (FIG. 3). Each thread is wound in the opposite direction. Although two wound filaments are preferred, perhaps a greater number of them. However, it is desirable to have an even number of threads to balance the tension that occurs. To facilitate the use of yarn in hall machines and to preserve the flexibility of the final product, the overall diameter of the yarn should not exceed 0.050 inch (0.127 cm).

The sheath 2 of the glove is zipped rather than formed by known methods, in order to provide flexibility, comfort, seamless construction and high production efficiency from a single yarn of 9 yarn. The overall diameter of the yarn is about 0.025 inches (0.064 cm).

Sheath 2 can be made of double yarn, i.e. It is knitted from two yarns of 9 yarns, but in this case a yarn of smaller diameter is required to reduce the weight of the glove. A single yarn glove is more preferable, since the strength and resistance to the notch of the product are largely determined by the metal yarn of the core and the coating 3 on the fabric rather than

t aramid and polyamide yarns provide certain advantages in viscous high-strength, notch-resistant gloves that are used without a coating; these materials have not been sufficiently beneficial if the gloves have to be cut, as is done in the present invention. Aramid and polyamide fibers are very difficult to coat (i.e., to ensure adhesion of the coatings to it) and, in addition, aramid fibers are much more expensive than polyester fibers.

The multifilament yarns 6 and 9 can be a spun yarn with a number from 1 to 60, preferably from 15 to 35, according to the cotton yarn numbering system. Filament type fibers are better than spun fibers, because they are stronger, less abrasive, in knitwear and more resistant to notching, because their tensile strength is 5

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Both yarns 6 and 9 are wound to ensure that consecutive turns are adjacent to each other (FIG. 3). Each thread is wound in the opposite direction. Although two wound filaments are preferred, perhaps a greater number of them. However, it is desirable to have an even number of threads to balance the tension that occurs. To facilitate the use of yarn in hall machines and to preserve the flexibility of the final product, the overall diameter of the yarn should not exceed 0.050 inch (0.127 cm).

The sheath 2 of the glove is zipped rather than formed by known methods, in order to provide flexibility, comfort, seamless construction and high production efficiency from a single yarn of 9 yarn. The overall diameter of the yarn is about 0.025 inches (0.064 cm).

Sheath 2 can be made of double yarn, i.e. It is knitted from two yarns of 9 yarns, but in this case a yarn of smaller diameter is required to reduce the weight of the glove. A single yarn glove is more preferable, since the strength and resistance to the notch of the product are largely determined by the metal yarn of the core and the coating 3 on the fabric rather than

fiber strands 6 and 9. Thus, using a slightly thicker core with four metal filaments and, therefore, yarn of a larger diameter to form a glove made from a single yarn provides more distinct advantages than using thinner yarn and Advanced twin yarn technology for glove manufacturing. The opposite is true in the case of uncoated gloves, in which the wrapping material has a significantly higher strength and resistance to incision, such as aramid. Single yarn gloves according to the proposed design are more flexible and less expensive than double yarn gloves.

Sheath 2 can also be made with aramid fiber 10 numbered 1,500 denier in the core, instead of four three stainless steel wires can be used, each with a diameter of 0.004 inch (0.010 cm), but everything is the same as in the previous version.

The lining 1, made of cotton or other suitable fabric, in particular polyester, provides increased comfort due to its softness and ability to absorb sweat. In the manufacture of gloves, the lining 1 is placed on the form to which it exactly corresponds. Then, the casing 2 is placed on the cladding, and the lining with the casing is immersed on the mold in an elastomeric coating material in a liquid state. 1 and binds it in place within the shell 2 during solidification or curing of the coating material. The shell is coated and the lining attached to it is removed from the mold after curing, and then the lining with the shell is rubbed along the edge of the cuff with the help of line 7.

The preferred elastomeric coating material is nitrile rubber because it is flexible even at low temperatures, stretchable, durable, oil- and moisture-resistant, has a toughness and notch resistance, and is relatively slip-resistant. The term nitrile rubber covers acrylonitrile rubber, acrylonitrile-butadiene rubber, nitrile-silicone rubber, which combines the characteristic properties of silicones with the oil resistance of nitrile rubber, acryponitrile-butadiene rubber, and nitrile-butadiene rubber. The preferred nitrile rubber is carboxyl-butadiene-acrylo-nitrile copolymer latex, supplied by

by Rycold ChemicaJ. Co, which includes zinc thiobutyl zimate, clay filler and pigment. In addition, other elastomers can be used, such as synthetic polymers (including plastisols and organosols) and natural rubber (polyisoprene). The coating material is solidified or solidified at the site of formation after immersion and

Removing material from a bath in a glove. The technology of coating fabric gloves with elastomeric materials is well known.

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The glove is immersed in such a way as to apply a continuous, continuous (i.e., without bare yarn) coating layer over the entire surface of the glove. The thickness of the coating should be minimal while ensuring full coverage of the fabric, maintaining maximum flexibility, and also revealing a pattern on the surface that creates a yarn that is opposed to each other. The thickness of the coating must be sufficient to render the glove impermeable to liquid and to provide good wear resistance and, in addition, it must be thick enough to ensure the resistance of the glove to an incision. When using nitrile rubber as the coating 3 and the overall design of the glove (Fig. 1), the weight of the coating material to be taken, calculated on the dry matter, for an average size glove is about 082 pounds (37 g). The shell mass is about 0.121 pounds (55 g), and the lining is 0.1031 pounds (47 g), so the glove is generally light enough, especially considering its strength, notch resistance and other factors.

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After immersing the glove and removing it from the coating material, the curing of the nitrile rubber in the form of a coating is carried out by heating the coating on the casing to a curing temperature for a sufficient period of time.

Improved resistance

The need for firm gripping of objects can be achieved by increasing the friction coefficient of the palmar and finger parts of the glove by turning on or adding abrasive to the glove surface before the coating material hardens. Such material may include, for example, pumice. In addition, natural rubber or flaky material can be applied to the surface and / or the glove can be embossed with a pattern on the palmar and finger parts.

Thus, the proposed protective haberdashery or clothing is resistant to liquids, does not absorb dirt, oil, blood and other liquids, is resistant to notching, abrasive-resistant, small in weight, flexible and comfortable to wear, is not abrasively, alone or in relation to other objects or clothing in contact with it (if the coating is not modified intentionally to increase friction). It also provides protection against heat. When the product is made in the form of gloves, it provides a good feeling when worn and a good neck. Although glove industry uses layers of material

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In order to impart resistance to the notch and provide protection, the proposed product provides a one-piece design that is highly resistant to notch.

Claims (4)

1. A haberdashery article for protection against cuts, mainly gloves, at least the working part of which consists of a sheath connected to the fabric lining and having an elastomeric coating on the outer surface, which is so as to increase the resistance of the notch - is made of yarn containing a core of at least one strand of coated flexible wire and of at least one spiral fiber wound onto it, while the sheath is impregnated with an elastomer coating and is bonded by yours with fabric lining. 2. Product non.l, characterized in that the core has a fibrous filament parallel to the wire filament. 3. A product according to claim 1, wherein the core has from 2 to 20 filaments of stainless annealed steel wire, each with a diameter of 0.025-0.25 mm, and the overall diameter of the yarn exceeds 1.27 mm. 4. Product according to claim 1, characterized in that the fibrous filament of the coating of the core is made of polyester fiber. l , Sha21 Fig.Z (.2