KR101839022B1 - The safety gloves for washable durability and the manufacturing method - Google Patents

Abstract

The present invention relates to safety gloves having washing durability and a manufacturing method thereof. The method includes: a step of preparing inorganic yarn; a step of sequentially covering the surface of the inorganic yarn with low melting yarn and high strength organic yarn; a step of forming a glove body by knitting the conjugated yarn comprising the inorganic yarn - the low melting yarn - the high strength organic yarn; and a step of coating the surface of the glove body with resin. The low melting yarn of the glove body is melted to coat the surface of the inorganic surface, while the inorganic yarn and the high strength organic yarn are combined to obtain the conjugated yarn, which is the major technical point. Accordingly, the surface of the in organic yarn is coated with the low melting yarn, located between the inorganic yarn and the high strength organic yarn, while the inorganic yarn and the high strength organic yarn are combined to substantially combine the conjugated yarn, with which the gloves are manufactured, and thus, even if the gloves are washed several times, the conjugated yarn does not protrude, so a user is able to be protected from stimulations to skin. Moreover, the gloves are capable of protecting the body of the user from external cutting work through the inorganic yarn and the high strength organic yarn, thereby being used in a dangerous work site.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety glove for washing durability,

The present invention relates to a safety glove having durability and a method of manufacturing the safety glove, and more particularly, to a safety glove having a low durability The present invention relates to a safety glove having a durability against washing, which is manufactured through a composite yarn which is firmly combined with the composite yarn, and which prevents the composite yarn from protruding even if it is washed several times.

BACKGROUND ART [0002] Generally, in an industrial field including a cutting process, safety cut gloves or protective clothing for protecting the body of a worker working from cutting are widely used. In particular, cut-resistant safety gloves must be worn to safeguard workers' hands from various hazards such as physical friction, machine malfunctions, sharp objects, etc., at workplaces that require an anti-cutting force. These cut-resistant safety gloves are currently being managed by quality standards such as EN-388, which is strictly standardized in many countries such as Europe and USA. For example, The blade cut resistance specification is at a performance level (level 5).

Accordingly, in order to satisfy such a level condition, development of a conventional cut-resistant safety glove has been conducted by developing organic super fibers such as ultra high molecular weight polyethylene (UHMWPE) fiber or aramid (P-aramid) Cutting resistant safety gloves using such materials have been developed because they have cutting resistance to the same sharp object. However, in the case of the prior art, since the high strength polyethylene yarn is also an organic fiber, there is a limit to resist the physical properties such as the breaking strength. Therefore, when such a high-performance cut-resistant safety glove is made using such an organic fiber, the thickness of the glove becomes very thick. Particularly, when the thickness of the glove becomes thick due to the feature of the glove, the workability of the worker is significantly reduced.

In order to overcome such disadvantages, in recent years, an inorganic or organic composite yarn has been developed using inorganic fibers such as glass fibers or metal fibers for reinforcing the cut resistance, thereby making it possible to manufacture gloves that are thin and excellent in cutting durability. Typically, glass yarns are examined as in the prior art 'Korean Patent Registration No. 10-1206337 Glass Processing Method and Cutting Protective Gloves Produced Therefrom', and the nylon yarn is double-covered around the glass yarn with the covering yarn, And a single composite yarn is obtained by covering the periphery with high density polyethylene yarn again.

However, in the case of this conventional technique, the glass yarn is simply covered with the nylon yarn and the high-density polyethylene yarn, and the composite yarn is produced without any further process. In particular, inorganic fibers such as glass fibers have excellent physical strength such as cutting strength but are not flexible compared to organic fibers and are broken by friction or bending action. For this reason, when a friction-like operation such as washing is performed, the glass yarn is separated from the nylon yarn and the high-density polyethylene yarn in the composite yarn simply joined by covering, resulting in deterioration of cut resistance and wearability of the glove.

This can be solved to some extent by coating the inorganic fiber with resin, but when the resin is coated, the cost of the yarn is increased and the thickness of the coating becomes thick, so that the fabric tends to be poor and the wearing feeling is lowered. However, in this method, the inorganic fibers coated by the washing or rubbing operation are protruded to the outside, and the skin is still stimulated even though the inorganic fibers are not directly separated.

Therefore, in the case of gloves containing inorganic fibers, there is a problem that washing is not possible and the period of use is short, so that it is necessary to develop a cutting-resistant material and a product which do not deteriorate the cutting prevention performance even after washing and have no skin irritation.

Korea Patent Office Registration No. 10-1206337

The above-mentioned object is achieved by a composite yarn which is coated on the surface of an inorganic yarn and which is bonded between an inorganic yarn and a high-strength organic yarn and is firmly bonded to an inorganic yarn and a high-strength organic yarn, The composite glove does not protrude to protect the user from skin irritation, and a method of manufacturing the safety glove.

The present invention also provides a safety glove having a washing durability suitable for use in a dangerous worksite since the body of the user can be protected from the external cutting operation by the inorganic chamber and the high strength organic chamber and a method for manufacturing the safety glove.

The above object is achieved by a method of manufacturing a semiconductor device, comprising: preparing an inorganic chamber; Sequentially covering a low melting yarn and a high strength organic yarn on the surface of the inorganic chamber; Forming a glove body by knitting a composite yarn made up of the inorganic chamber, the low melting point chamber, and the high strength organic yarn into a glove shape; Coating a surface of the glove body with a resin; Melting chamber of the glove body is melted and coated on the surface of the inorganic chamber, and the inorganic chamber and the high-strength organic chamber are bonded to each other to form an integral body And a composite yarn form is obtained.

Wherein the covering step includes a step of disposing the inorganic sealant in a line and twisting the low melting point seal on the surface of the inorganic seal to twist the low melting point seal so that the surface of the inorganic seal is not exposed to the outside, Melting chamber to surround the entire surface of the low-melting-point chamber and surround the entire surface of the low-melting-point chamber by twisting the high-strength organic yarn in a direction opposite to the continuous direction of the low-melting-point chamber without exposing the surface of the exposed low-

The low melting point yarn is a low melting point nylon yarn or a low melting point PET yarn which is melted at 80 to 100 DEG C. The high strength organic yarn is preferably an ultra high molecular weight polyethylene (UHMWPE) or aramid (para-aramid) yarn And the step of melting the low-melting-point chamber is preferably a heat treatment at 100 to 140 ° C.

The above-mentioned object is also achieved by a method for producing a high strength organic material, which comprises an inorganic chamber, a low melting yarn covered on the surface of the inorganic chamber, and a high strength organic material coated on the surface of the low melting point chamber in a direction opposite to the low melting point chamber and a composite yarn in which the low melting point yarn is melted and coated on the surface of the inorganic yarn and the inorganic yarn and the high strength organic yarn are combined with each other, And a safety glove having durability against washing.

According to the structure of the present invention described above, the low-melting-point chamber existing between the inorganic chamber and the high-strength organic chamber is coated on the surface of the inorganic chamber and the inorganic chamber is combined with the high- The composite yarn does not protrude even if it is washed a number of times, so that the user can be protected from skin irritation.

In addition, it is possible to protect the user's body from the external cutting operation by the inorganic chamber and the high-strength organic chamber, which is suitable for use in a dangerous work site.

1 is a conceptual diagram of a composite yarn according to an embodiment of the present invention,
2 is a flowchart of a glove manufacturing method according to an embodiment of the present invention,
3 is a photograph of a composite yarn according to an embodiment of the present invention and a composite yarn according to the related art,
4 is a photograph of a glove manufactured using a composite yarn according to the prior art,
5 is a photograph of a glove manufactured using a composite yarn according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a safety glove having durability according to an embodiment of the present invention and a method of manufacturing the same will be described in detail with reference to the drawings.

1, the safety glove of the present invention comprises an inorganic chamber 11, a low melting yarn 13 covered on the surface of the inorganic chamber 11, And a high strength organic yarn 15 covered on the surface in the opposite direction to the low melting point chamber 13. The low melting point chamber 13 is melted and coated on the surface of the inorganic chamber 11, And a composite yarn 10 in which the inorganic yarn 11 and the high strength organic yarn 15 are combined. The composite yarn 10 is knitted to form a glove shape.

As shown in FIG. 1, first, an inorganic chamber 11 is prepared (S1).

The inorganic yarn 11 having high strength is prepared so that the glove manufactured through the composite yarn 10 has excellent durability against washing and resistance to cutting. The inorganic yarn 11 corresponds to a yarn used for the examination of the composite yarn 10. The inorganic yarn 11 may be a glass yarn, a metal yarn, a basalt yarn, and mixtures thereof. It is preferable that the thickness of the inorganic chamber 11 is 50 to 200 D in the case of the glass seal, 35 to 60 m in the case of the metal seal, and 50 to 200 D in the case of the basalt seal.

The low melting point chamber 13 and the high strength organic chamber 15 are sequentially covered on the surface of the inorganic chamber 11 (S2).

A low melting yarn 13 is covered on the surface of the inorganic chamber 11 and then a high strength organic yarn 15 is applied to the surface of the coated low melting point chamber 13 So that the inorganic chamber (11) - the low melting point chamber (13) - the high strength organic chamber (15) are sequentially covered from the center to the outside. The low-melting point chamber 13 and the high-strength organic chamber 15 to be covered are formed by arranging the inorganic chamber 11 in a line and twisting the low-melting point chamber 13 on the surface thereof, The low-melting-point chamber 13 is twisted so as to surround the entire surface of the inorganic chamber 11 so as not to be exposed to the outside. The surface of the low-melting-point chamber 13 is exposed to the outside, and the surface of the low-melting-point chamber 13 is exposed to the outside of the low-melting-point chamber 13 The high-strength organic chamber 15 is twisted to surround the entire surface of the low melting point chamber 13.

The low-melting point chamber 13 and the high-strength organic chamber 15 are covered with each other in opposite directions. If the same is covered in the same direction, the thread may not be firmly coupled during the manufacturing process and may be loosened in one direction. In order to prevent this, the speakers are run in opposite directions. In addition, when the twist yarns are twisted in the opposite direction when the composite yarn 10 is produced, a composite yarn 10 that is soft in the same direction can be obtained. Therefore, when manufacturing gloves as in the present invention, 13 and the high-strength organic chamber 15 in the opposite directions.

The low-melting point chamber 13 is generally made of a soft twisted yarn or a medium twist yarn in a range of 200 to 400 T / M (Twist per Meter), but in the present invention, a soft yarn of 600T / M-1500 is used. It is most preferable that the yarn is wound in the range of 600T / M-1500 in order to wrap the inorganic yarn 11 and to impart the coating effect to the inorganic yarn 11. When the twist yarn is less than 600 T / M, protrusion of the glass fiber occurs in the finished composite yarn 10, and when the yarn exceeds 1500 T / M, the finished composite yarn 10 becomes rough and hard, .

Unlike the low-melting-point chamber 13, the high strength organic yarn 15 which is wound in the direction opposite to the low-melting-point chamber 13 is weakly twisted at 200 to 250 T / M. When the yarn is less than 200 T / M, it is difficult to produce a desired composite yarn because it is difficult to produce a satisfactory yarn. If the yarn exceeds 250 T / M, it is difficult to check the yarn immediately after the yarn. 10) is rough and hard.

Among these, the low melting point chamber 13 means nylon or polyethyleneterephthalate (PET) having a low melting point. Nylon generally has a melting point of 6,6-nylon of 260 ° C, a melting point of 6-nylon of 215 ° C, and a melting point of 6,10-nylon of 209 ° C. However, in the present invention, a low-melting point nylon yarn or a low-melting point PET yarn which is not a general nylon but is melted at 80 to 100 DEG C is used. This is because, when the low melting point chamber 13 is not used, the polymer is decomposed at a temperature higher than a predetermined temperature, and the low melting point chamber 13 is melted because pyrolysis is performed before the coating and adhesion effect is manifested. There is a drawback that it is difficult. The low-melting point nylon yarn or the low-melting point PET yarn, which is melted at 80 to 100 DEG C, is used because of the disadvantage that the high strength organic yarn 15 which is subsequently blown together with the low melting point chamber 13 may change its properties at a high temperature of 200 DEG C or more .

The high strength organic yarn 15 refers to an ultra high molecular polyethylene (UHMWPE) or an aramid yarn (P-aramid yarn). By using an ultra-high molecular polyethylene or aramid yarn other than a general polymer yarn, Most preferably, the yarn 10 is produced. In general, the polymer chamber is a flexible and cutable material, whereas the high-strength organic chamber (15) composed of an ultra-high molecular polyethylene or an aramid chamber has a very high molecular weight of a polymer and exhibits a metal-like property. These high strength organic chambers 15 have features such as very high impact resistance, high resistance to wear and abrasion, very low coefficient of friction, self-lubricating and non-adhesive surfaces, and very good chemical resistance. That is, even if a force for cutting is applied to the high-strength organic yarn 15, the composite yarn 10 is not easily broken, and therefore, the composite yarn 10 having excellent cutting resistance can be manufactured.

The composite yarn 10 is knitted to form a glove body in the shape of an arm (S3).

The composite yarn 10 made up of the inorganic chamber 11, the low-melting point chamber 13 and the high-strength organic chamber 15 is knitted and knitted into an armor shape to form a glove body. The technique of forming the glove body through knitting is generally the same as the technique for manufacturing gloves, so that detailed description is omitted.

A resin is coated on the surface of the glove body (S4).

The composite yarn 10 is knitted to form a glove body, and then resin is coated on the surface of the palm to provide gripability in the post-processing process. A method of coating the resin on the palm side of the glove is performed by dipping the palm side of the glove body into the resin dissolved in the solvent and then taking out the palm side again. The glove body is immersed in the coating solution consisting of the resin and the solvent, and the solvent is evaporated by evaporating the solvent, so that only the resin present in the coating solution is coated on the palm surface of the glove body.

The glove body is heat-treated to melt the low melting point chamber 13 (S5).

When the heat treatment is performed, water is evaporated and the resin is coated on the palm of the glove, and at the same time, the glove is coated with the composite yarn 10 constituting the main body of the glove. Melting low-melting-point chamber 13 is melted. When the low-melting-point chamber 13 is melted, the low-melting-point chamber 13 is coated on the surface of the inorganic chamber 11, and the inorganic composite yarn 11 and the high- ) Shape is obtained. At this time, if a high-melting-point chamber which is melted at a high temperature is used without using the low-melting-point chamber 13 as in the present invention, the room is not melted through heat treatment for removing moisture, and heat treatment at another high temperature is required. However, when the heat treatment is performed at a high temperature, there arises a problem that the high strength organic chamber 15 is injured.

At this time, in the heat treatment process, the water contained in the gloves is evaporated through a water tank process to extract the solvent contained in the resin after the dipping process, and the heat treatment process is performed at 100 to 140 ° C to melt the low melting point chamber 13 do. The results are shown in Table 1 when the drying temperature was varied through the heat treatment after the dipping process of the glove body.

Experiment 1 Experiment 2 Experiment 3 Experiment 4 Heat treatment temperature 80 ℃ 100 ℃ 120 DEG C 135 ℃ Degree of melting × △ ○ ○ Degree of coating × △ ○ ○ Touch △ ○ ○ ○

(?: Good,?: Normal, poor: poor)

The resin coated on the glove body may be selected from the group consisting of acrylonitrile butadiene rubber (NBR), polyurethane (PU), latex, silicon and mixtures thereof, It is preferable to use a solvent capable of completely dissolving the resin such as dimethylformamide (DMF), methylformamide (MMF) and the like. Various coatings may be used to facilitate application of the gloves of the present invention to work having various properties. For example, acrylonitrile butadiene rubber (NBR) may be used as a coating component and a latex may be used as a coating component when carrying out rough work such as a carpenter's work. , Polyurethane (PU) is used as a coating component when precision work is required, and silicone can be used as a coating component in a work requiring heat resistance.

The composite yarn 10 used for weaving to form the glove of the present invention can be confirmed from FIG. FIG. 3A is a composite yarn 10 produced by the manufacturing method of the present invention. Even if the composite yarn 10 is twisted, the inorganic yarn 11, the low melting point yarn 13, and the high strength organic yarn 15 are not separated It can be confirmed that they are integrally and firmly coupled. In contrast, FIG. 3B is a composite yarn in which inorganic yarn and resin yarn are mixed, which is a conventional method, is easily separated by human force, and the resin is blackened during the heat treatment process, which is disadvantageous in appearance. In the case of the prior art (Korean Patent Registration No. 10-1206337), since the composite yarn is not integrally formed as in the present invention, when it is twisted, the glass yarn, nylon yarn and high density polyethylene yarn are separated from each other to wash the gloves There is a problem that it can not be done. In contrast, in the case of the present invention, since the composite yarn 10 is firmly coupled even when twisted, the washing durability is excellent.

The thus manufactured glove of the present invention can be seen from FIGS. 4 and 5. FIG. 4 shows a part of the glove manufactured by the manufacturing method of the present invention, in which the glove is rubbed even though the inorganic chamber 11, the low melting point chamber 13, and the high strength organic chamber 15 are firmly combined And it can be confirmed that the composite yarn 10 does not protrude to the outside of the fabric. In contrast to this, FIG. 5 shows a conventional woven glove using a composite yarn in which an inorganic yarn and a resin yarn are mixed. When the gloves are rubbed, the composite yarns are separated from each other and protrude to the outside of the fabric. There is a disadvantage that washing can not be performed.

In the prior art (Korean Patent Registration No. 10-1206337), when gloves are manufactured using glass yarns, the glass yarns are crushed during use or washing. When the glass yarns are broken, the cutting performance of the gloves is degraded and the wearing comfort is degraded It was followed. Further, even if the glass is not directly removed, there is a problem that the glass is projected to the outside by the washing or rubbing action, and the skin irritation is still caused. However, in the case of the present invention, the low-melting-point chamber 13 existing between the inorganic chamber 11 and the high-strength organic chamber 15 is coated on the surface of the inorganic chamber 11 and at the same time the inorganic chamber 11 and the high- The composite yarn 10 is prevented from protruding even when it is washed a number of times through the composite yarn 10 so that the effect of protecting the user from skin irritation can be obtained . In addition, since the inorganic body 11 and the high-strength organic chamber 15 can protect the user's body from external cutting work, it is suitable for use in dangerous work sites.

10: Composite yarn
11: Weapon room
13: Low melting point room
15: High strength organic chamber

Claims (5)

A method for manufacturing a safety glove having durability,
Preparing an inorganic chamber;
Sequentially covering a low melting yarn and a high strength organic yarn on the surface of the inorganic chamber;
Forming a glove body by knitting a composite yarn made up of the inorganic chamber, the low melting point chamber, and the high strength organic yarn into a glove shape;
Coating a surface of the glove body with a resin;
And melting the low melting point chamber by heat treating the glove body,
Melting chamber of the glove body is melted and coated on the surface of the inorganic chamber, and the inorganic chamber and the high-strength organic chamber are bonded to each other,
Wherein the covering comprises:
The low melting point yarn is twisted on the surface of the inorganic yarn and the low melting point yarn is twisted so that the surface of the inorganic yarn is not exposed to the outside to surround the entire surface of the inorganic yarn, Wherein the high-strength organic yarn is twisted in a direction opposite to the continuous yarn direction of the low-melting-point yarn so as to surround the entire surface of the low-melting-point yarn without exposing the surface of the low- Gt; delete The method according to claim 1,
Wherein the low melting point yarn is a low melting point nylon yarn or a low melting point PET yarn which is melted at 80 to 100 DEG C and the high strength organic yarn is an ultra high molecular weight polyethylene (UHMWPE) or aramid (Para-aramid) A method of manufacturing a safety glove having durability. The method according to claim 1,
Melting the low-melting-
Wherein the heat treatment is performed at 100 to 140 캜. In a safety glove having a washing durability,
A low melting yarn covered on the surface of the inorganic chamber and a high strength organic yarn covered on the surface of the low melting point chamber in a direction opposite to the low melting point yarn, And a composite yarn in which the low melting point yarn is melted and coated on the surface of the inorganic yarn, and the inorganic yarn and the high strength organic yarn are combined. The composite yarn is knitted to form a glove shape,
Melting the low melting point yarn by twisting the low melting point yarn on the surface of the inorganic yarn to twist the low melting point yarn so that the surface of the inorganic yarn is not exposed to the outside, The high-strength organic yarn is twisted in a direction opposite to the continuous yarn direction of the low-melting-point yarn so as to surround the entire surface of the low-melting-point yarn without surrounding the front surface of the yarn and the exposed surface of the low- Washing safety gloves with durability.

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