JPH03269103A - Gloves made of plastic film - Google Patents

Abstract

PURPOSE:To obtain the subject low-cost gloves, good in operating efficiency without emitting toxic gases in incineration by superposing films, having a specific density and composed of a straight-chain ethylene-alpha-olefin copolymer and thermally fusing the outer peripheries thereof. CONSTITUTION:The objective gloves obtained by blending, e.g. (A) 100 pts.wt. straight-chain ethylene-alpha-olefin copolymer, produced by a vapor-phase low- pressure process and having 0.910g/ml density with (B) 0-900 pts.wt. resin composed of high-pressure produced low-density polyethylene, ethylene-vinyl acetate copolymer, etc., and subjecting one or both sides of the resultant films to embossing processing to preferably 2-300mu depth, superposing the two films, thermally fusing the outer peripheries thereof according to a hand-shaped form and providing each hand opening part as an opened port without breaking heat-sealed parts.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to gloves made of plastic film that are easy to manufacture and have excellent performance. This invention relates to plastic film gloves made of a specific polyethylene resin that can be easily used and disposable in various places such as workplaces, laboratories, and grocery stores.

[Conventional technology]

Conventionally, disposable plastic film gloves were
PVC film, high-pressure low-density polyethylene film, or ethylene-vinyl acetate copolymer film, etc., are stacked together and the outer periphery is heat-sealed to fit the shape of the hand.Because they are inexpensive and easy to use, they are mainly used. It is used.

[Problem to be solved by the invention]

However, since PVC film contains chlorine,
Incineration pollutes the environment, high-pressure low-density polyethylene film has low heat-sealing strength, tends to tear when force is applied to the welded area, and lacks flexibility; There were problems such as insufficient sealing strength, blocking properties, poor opening at the wrist during use, and high cost.

Therefore, the present invention solves the above-mentioned problems of conventional plastic film gloves, is low in cost, has strong heat-sealed welded parts, and has a good feel after manufacturing.
To provide a plastic film glove that is flexible, does not cause a blocking phenomenon, and does not generate toxic gas when incinerated.

[Means to solve the problem]

As a result of intensive research, the inventors of the present invention found that the density of 0.6910 g / Low density ethylene less than ml
The inventors studied α-olefin copolymers and found that they have excellent properties as a material for plastic film gloves, and completed the present invention.

That is, in the present invention, the density of the product manufactured by the gas phase low pressure method is 0.
The present invention relates to a plastic film glove made by laminating two films made of a linear ethylene-α-olefin copolymer having a weight of 910 g/ml or less, heat-welding the outer periphery to fit the hand shape, and having an open opening at the wrist.

Here, the linear ethylene-α-olefin copolymer may be used alone or in combination of two or more types.

Further, in the present invention, it is preferable to use a plastic film glove which is embossed on one or both sides of the film and has a depth of 2 to 300 μm.

Furthermore, in the present invention, for 100 parts by weight of the linear ethylene-α-olefin copolymer having a density of 0.910 g/s+/ or less produced by the above gas phase low pressure method,
A resin composition further containing 0 to 900 parts by weight of one or more resins selected from the group consisting of high-pressure low-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, and ionomer. Also preferred are plastic film gloves made from a film made from a plastic film. The amount of components other than the linear ethylene-α-olefin copolymer blended here is selected within a range that does not impair the characteristics of the linear ethylene-α-olefin copolymer.

In the present invention, the density produced by the gas phase low pressure method is 0.9
A linear ethylene-a-olefin copolymer having a concentration of 10 g/ml or less means 20 to 70% by weight of ethylene and α-
It consists of 80 to 301% by weight of olefins, preferably 40 to 60% by weight of ethylene and 60 to 40% by weight of α-olefins.

In this specification, α-olefin means one having 3 to 12 carbon atoms, and may be linear or branched, such as propylene, butene-11hexene-
11-hebutene-1, octene-1, nonene-1, decene-1, undecene-1, dodecene-1,4-methylpentene, 1,4-methylhexene-1,4,4-dimethylpentene-1, and the like.

The linear ethylene-α-olefin copolymer having a density of 0.910 g/ml or less used in the present invention is preferably produced by the following continuous production method: In a fluidized bed reaction zone, IO Temperature between 80℃ and 700℃
At pressures below 0 KP and +al, the molar ratio of higher α-olefin: ethylene is 0.
．． 35:1 to 8.0:1 of ethylene and at least one higher α-olefin having from 3 to 12 carbon atoms; and (bl at least 25 mol %) at least one diluent gas. The mixed gas is represented by the following formula: Mg, Ti (OR), , Ro represents an aliphatic or aromatic hydrocarbon group having 1 to 14 carbon atoms, X is selected from the group consisting of chlorine atom, bromine atom, iodine atom and mixtures thereof, and ED is an aliphatic or aromatic acid represents an organic electron donating compound selected from the group consisting of alkyl esters, aliphatic ethers, cyclic ethers, and aliphatic ketones, m is 0.5 to 56, n is 0, ■, or 2, p is from 2 to 116, and q is from 2 to 85. 6) diluting said precursor composition with an inert carrier material. In addition, the following formula ■: Al (R'), X', H,
(ff) (In the formula, X'' represents a chlorine atom or a group OR', and Ro and R''
independently represent a saturated hydrocarbon group having 1 to 14 carbon atoms, e is 0 to 1.5, f is 0 or l, and d+e+f=3. ) A method of complete activation with an organoaluminum compound represented by provided that the activating compound has a total aluminum:titanium molar ratio in the reaction zone of 10:1 to 4.
00:1. Details regarding this manufacturing method are described in JP-A-59-230011.

Alternatively, the linear ethylene-α-olefin copolymers of the invention may be prepared as follows: ethylene and at least one C3-C12 α-olefin are combined in a gas phase. Approximately 1°C to approximately 115°C
At a temperature of (A) (1) vanadium trihalide ta+ with chlorine, bromine or iodine and an electron donor (b) which is a liquid organic Lewis base in which the vanadium trihalide is soluble;
(2) The following formula ■: MX, (III) (wherein M represents a boron atom or a group A I R + 3-1 +, and each R represents an alkyl group) However, the total number of carbon atoms in any R group does not exceed 14, X represents a chlorine atom, bromine atom or iodine atom, a is 0, l or 2, provided that when M represents a boron atom a is 3); and a supported precursor material consisting essentially of a solid inert support consisting essentially of silica or alumina; Formula ■: AiR, (IV) (In the formula, R represents the same meaning as the definition of Formula ■.

), and (C) the following formula V: R', CX'+,, + (V) (wherein R1 represents a hydrogen atom or an unsubstituted or halogen-substituted lower alkyl group, XI represents a halogen atom, and b is 0, 1 or 2. Details of this method are described in JP-A-59-23006.

The film used in the present invention is manufactured by a blown tubular film manufacturing method or a T-die casting method, and embossing is applied to one or both sides of the film as necessary.

The thickness of the film is between 10 and 200μ, preferably 20μ
The thickness is between 100μ and 100μ. This is because if the thickness is less than 10μ, the film will be easily torn, and if it exceeds 200μ, workability will deteriorate and manufacturing costs will increase.

Embossing is applied to one or both sides of a film by pressing the film between a chill roll and a pressure roll having an appropriate surface roughness. Embossing not only gives the film a beautiful appearance and improves its commercial value, but when used as gloves, the uneven surface makes it easier to grip objects and prevents the films from blocking each other. .

Types of embossing include tortoiseshell, lattice, silk, diamond, bead, linen, satin, and splash, and all of these are effective, but the embossing depth (measured in accordance with JIs BO601) is 2 to 300 μ, preferably 5 to 20
It is 0μ.

This does not show the above effect when it is less than 2μ, and 300μ
If it exceeds .mu., the heat sealability will be poor and the appearance will be undesirably rough.

The plastic film glove of the present invention is manufactured as follows: A film is manufactured by an inflation method or a T-die method, and its surface is embossed as necessary.

Next, after overlapping the two films, the outer periphery of the handprint is heat-sealed and welded, and the outside of the heat-welded part is cut to form a glove. Here, thermal welding and cutting may be performed simultaneously, so-called thermal cutting.

Note that the wrist portion may be left in advance and thermally welded to form an open opening, but it is also possible to thermally weld the entire periphery of the hand and cut it with scissors during use to form an open opening.

〔Example〕

Example 1 Density 0.906g/+1/, melt index 0.8
A film with a thickness of 70 μm was produced by the T-die method using an ethylene-butene-1 copolymer (manufactured by Union Carbide Co., Ltd., DFDA-1137) of 1 g/10 minutes, and after overlapping two films, a bill was formed. The width of the outer periphery is 2, leaving the wrist part.
The gloves were thermally welded using Step (3) and the outside was cut with scissors to produce 10 plastic film gloves.

Dishwashing work was carried out using this for one hour, but no breakage of the thermally welded portion due to heat sealing occurred after 100 sheets were loaded. In addition, these gloves have a rubber-like feel, and the sensations of the hands are directly transmitted to the plate of work i, so there were no accidents such as dropping and breaking the plate.

Example 2 A film similar to that of Example 1 was produced, and the outer surface was coated with 200
Gloves were manufactured in the same manner as in Example 1, except that the embossing was performed to an embossing depth of μ, and the same tests were conducted.

In this example, since the surface was embossed, the workability was further improved compared to that in Example 1, and even after washing dishes for 2 hours, there was no accident of breaking the dishes.

Example 3 A film similar to Example 1 was produced, and 100% of the film was coated on both sides.
Gloves were manufactured in the same manner as in Example 1, except that the embossing was performed to an embossing depth of μ, and the same tests were conducted.

In this example, both sides are embossed, so the inner surface of the glove feels better against the hand than in Examples 1 and 2, and workability is further improved, even after washing dishes for 3 hours. There were no incidents of plates breaking.

Example 4 A film similar to Example 1 was manufactured, and 20
Gloves were manufactured in the same manner as in Example 1, except that embossing with an embossing depth of 0 μ was performed, and the same tests were conducted.

In this example, since the inner surface was embossed, it was easy to put the hand in and take it out, and the glove had a good feel and a soft feel as a glove. Moreover, it was easy to work with, and even after washing dishes for an hour, there were no incidents of breaking dishes.

Comparative Example 1 High pressure low density polyethylene (density 0.920 g/a/, melt index 1.3 g/
Gloves were produced in the same manner as in Example 1, except that 10 minutes (manufactured by Nippon Unicar, DND-2450) were used, and the tests were conducted in the same manner.

The strength of the heat-welded parts of these gloves was weak, and 9 out of 10 gloves were torn after 1 hour of washing dishes. In addition, the gloves felt stiff and the sensation of the hand was not transmitted to the plate being used as a control, and five plates were accidentally dropped during the above-mentioned working time.

Comparative Example 2 Ethylene-vinyl acetate copolymer (density 0.935 g/
m1. Vinyl acetate content 10%, melt index 1.
3g/10min 1 Nippon Unicar, DQDJ-1830)
Gloves were manufactured in the same manner as in Example 1, except that the gloves were used, and the tests were conducted in the same manner.

These gloves had stronger heat-welded parts and better workability than Comparative Example 1, which used high-pressure low-density polyethylene, but 5 out of 10 gloves were torn after 1 hour of dishwashing work, and 3 plates were washed. A fall accident occurred.

〔Effect of the invention〕

The plastic film gloves of the present invention use a specific ethylene-α-olefin copolymer film with properties close to rubber as a material, so the heat-sealed part will not be damaged and the hands will feel more comfortable when working. It is transmitted as it is,
Very easy to work with. In addition, when using a film with an embossed surface, it feels better in the hand and has better contact with the object, further improving workability.

Claims (3)

[Claims] (1) Density manufactured by gas phase low pressure method is 0.910 g/m
This plastic film glove is made by laminating two films made of a linear ethylene-α-olefin copolymer having a diameter of 1 or less and heat-welding the outer periphery to fit the hand shape, and having an open opening at the wrist. (2) one or both sides of the film are embossed;
The plastic film glove according to claim 1, wherein the depth thereof is 2 to 300 microns. (3) Density manufactured by gas phase low pressure method is 0.910 g/m
From the group consisting of high-pressure low-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid ester copolymer, and ionomer, per 100 parts by weight of a linear ethylene-α-olefin copolymer of 1 or less 2. The plastic film glove according to claim 1, which is made of a film produced from a resin composition containing 0 to 900 parts by weight of one or more selected resins.