JP2000355809A - Gloves made of plastic film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain gloves made of plastic films good in fitness to a hand, excellent in operating efficiency, having high durability and excellent even in embossing processability at a low cost without containing chlorine. SOLUTION: The gloves made of plastic films are obtained by superimposing the two films comprising a polyethylene-based resin material containing an ethylene-3-18C α-olefin copolymer having 0.1-100 g/10 min melt flow rate(MFR), 15-80 deg.C temperature of the maximum peak in an elution curve of a temperature rising elution fractionation(TREF) and >=2 value of H/W when the peak height is H and the width of the peak at the height of 1/3 of H is W and heat-sealing the outer periphery of the hand form. The films have 150-1,000 kg/cm2 tensile modulus of elasticity and >=200 kg/cm2 tensile breaking strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a plastic film glove. More specifically, the present invention relates to a plastic film glove that is excellent in flexibility, puncture resistance (pinhole resistance), mechanical strength, and durability, and is flexible and excellent in hand fit.

[0002]

2. Description of the Related Art In places such as homes, factories, hospitals, hotels, laboratories, the food service industry, various event venues, etc., plastic film made of plastic film which can be used simply and inexpensively and which can be used up properly from a sanitary point of view when it becomes dirty. Gloves are widespread. Conventionally, such disposable plastic film gloves are mainly made of PVC (polyvinyl chloride) film, high-pressure low-density polyethylene, low-pressure high-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer. A film obtained by laminating two plastic films such as a film and an ethylene / methyl methacrylate copolymer film and heat-sealing the outer periphery in a hand shape (heat sealing) has been widely used because of its simplicity and low cost.

[0003] However, since the PVC film contains chlorine, there is a problem of environmental pollution such as generation of dioxin during incineration. In high-pressure low-density polyethylene films and low-pressure high-density polyethylene films,
The film lacks elongation and strength, and the film has too strong a stiffness, giving a feeling of incompatibility when attached and lacking in the fit to the hand. In addition, the ethylene-vinyl acetate copolymer film and the ethylene / methyl methacrylate copolymer film have further poor film elongation and film strength, and have a blocking property, so that the wrist opening is poor during use, and the price is low. Is high.

As a means for solving such a conventional problem, a glove made of a film using a linear ethylene / α-olefin copolymer or ultra-low-density polyethylene has been proposed (JP-A-3-269103, JP-A-6-10
1104). However, the film made of this linear ethylene / α-olefin copolymer has a slightly inferior feel and handleability, and the film may be broken when handling heavy objects. Further, a film using ultra-low density polyethylene was insufficient in heat seal strength, piercing resistance, impact resistance and the like.

[0005] That is, the plastic film glove has a small gap between the hand and the glove when worn, has flexibility to easily follow the movement of the finger, and has high strength (penetration resistance and heat sealing property). Are more excellent in durability, detachability and workability. However, if the conventional film as described above is molded into a small size that fits the hand like a rubber glove, a load is applied to the heat sealing portion due to the movement of the hand at the time of wearing or working, and the heat sealing strength is reduced. In many cases, the heat-sealed part was torn without being able to bear it. Further, when pressure is applied to the fingertip or the like, the film may be broken due to insufficient elongation or puncture resistance. For this reason, conventional plastic film gloves are considerably large in size, and the opening at the wrist has to be considerably wider than the width of the wrist in consideration of detachability. However, with such a large glove, the wrist opening is large and the fingers do not fit when worn, so that it is easy to separate from the hand and fine work is difficult.

Also, plastic film gloves include:
Conventionally, there are a film having a smooth surface and a film having an embossed surface, and it is known that a glove having a good touch can be obtained by embossing. Therefore,
Improvement in embossability has been desired.

Therefore, the opening in the wrist portion is so narrow that there is no danger of falling off from the hand. Even if the opening is so narrow, the glove can be easily attached and detached and will not be broken at the time of attachment / detachment. The gap between them fits the hand little, it is hard to tear even with the movement of the fingers, and it shows flexibility and high followability,
A glove excellent in workability and having good embossability has been desired. For that purpose, it is necessary to provide high heat sealing strength, high film strength and elongation, excellent flexibility and the like in a well-balanced manner, but none of the conventional plastic films is sufficiently satisfactory in this regard.

[0008]

DISCLOSURE OF THE INVENTION The present invention provides a plastic film glove which is inexpensive, contains no chlorine, has a good fit to the hand, is excellent in workability, has high durability and is excellent in embossability. The task is to provide.

[0009]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that by using a specific polyethylene resin, high flexibility, film elongation,
A film having both good film strength and heat seal strength in a well-balanced manner was obtained, and it was found that the above problems could be solved. Thus, the present invention was completed.

That is, the present invention provides a plastic fill
The outer periphery of the hand shape is heat-sealed
Gloves with open wrists and the following:
Plastic film hand having properties (a) and (b)
Provide bags. (A) at least the tensile modulus in the MD direction of the film
Is 150-1000kg / cm^TwoThat. (B) MD and TD tensile fracture of the film
Strength is 200kg / cm ^TwoThat is all.

The present invention also relates to an ethylene / α-olefin wherein the plastic film is a copolymer of ethylene and an α-olefin having 3 to 18 carbon atoms and satisfies the following physical properties (c) and (d): The present invention provides the plastic film glove, comprising a polyethylene resin material containing a copolymer. (C) The melt flow rate is 0.1 to 100 g / 10 minutes. (D) Temperature rise The temperature of the maximum peak of the elution curve obtained by elution fractionation is 15 to 80 ° C., the height of the peak is H, and the width of the peak at one third of the height is W.
H / W value is 2 or more.

Further, the present invention provides the plastic film glove, characterized in that at least one surface of the film is embossed to a depth of 2 to 300 μm. The glove made of a plastic film is provided, wherein the film is formed by a T-die casting method.

[0013]

Embodiments of the present invention will be described below. (1) Physical Properties of Film The glove of the present invention is formed of a plastic film, and the film has the following physical properties (a) to (c).
It has all.

(A) Tensile modulus The plastic film glove of the present invention has a tensile modulus of 150 to 100 of the plastic film constituting the glove.
It is 0 kg / cm ² . The tensile elastic modulus only needs to be satisfied at least in the MD direction of the film. If the tensile elastic modulus is less than the above range, the stiffness of the film is insufficient,
It is not preferable because the handleability is deteriorated. On the other hand, if it exceeds the above range, the fit to the hand and the workability are deteriorated, which is not preferable. The preferred range of tensile modulus is from 250 to 90.
0 kg / cm ² , more preferably 300 to 850
kg / cm ² . In addition, the tensile elastic modulus here is a value measured based on JIS-Z1702.

(B) Tensile breaking strength The plastic film glove of the present invention has a tensile breaking strength of 200 kg /
cm ² or more. The tensile strength at break is determined by the MD of the film.
Both the direction and the TD direction must be satisfied. If the tensile strength at break is less than the above range, the strength of the film is insufficient, and the film is easily broken, which is not preferable. The preferred range of tensile strength at break is 25.
0 kg / cm ² or more, more preferably 290 kg
/ Cm ² or more. In addition, the tensile breaking strength here is a value measured based on JIS-Z1702.

(2) Plastic Material The glove of the present invention may be formed of a film made of any plastic material as long as the above physical properties (a) and (b) are satisfied. A resin-free resin is preferred.

More preferably, ethylene and C 3 to C 1 are used.
(C) having a melt flow rate of 0.1 to 100 g / 10 min, and (d) having a maximum peak temperature of 15 in an elution curve obtained by temperature-increasing elution fractionation. ８０80 ° C., and the height of the peak is H, and the width of the peak at one third of the height is W
Ethylene / α-having an H / W value of 2 or more
If a plastic film made of a polyethylene resin material containing an olefin copolymer is used, a plastic film satisfying the above physical properties can be obtained.

(1) Copolymer composition The copolymer is an ethylene / α-olefin copolymer having a structural unit derived from ethylene as a main component,
The comonomer α-olefin is selected from those having 3 to 18 carbon atoms. Specifically, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 1-
Heptene, 4-methyl-pentene-1, 4-methyl-hexene-1, 4,4-dimethylpentene-1 and the like can be mentioned. The comonomer is not limited to one type, and a multicomponent copolymer using two or more types such as a terpolymer is also preferable. The proportion of ethylene units in the copolymer is preferably at least 80 mol% and the comonomer is less than 20 mol%. Specific examples of the ethylene / α-olefin copolymer include ethylene / 1-hexene copolymer, ethylene / 1-butene copolymer, ethylene / 4-methylpentene-1 copolymer, ethylene / 1-octene And copolymers.

2 Melt flow rate The melt flow rate (hereinafter abbreviated as "MFR") of the ethylene / α-olefin copolymer is 0.1 to 100 g.
/ 10 minutes, preferably 0.3 to 80 g / 10 minutes, more preferably 0.5 to 60 g / 10 minutes. The MFR in this case is a value measured according to JIS-K7210. If the MFR is larger than the above range, the film strength decreases, and the film formation becomes unstable. In addition, the M
When the FR is smaller than the above range, the extrudability is reduced and the moldability is deteriorated, which is not preferable.

(3) Elution Curve by Temperature-Increasing Elution Fractionation (TREF) The ethylene / α-olefin copolymer preferably used as the material for a plastic film of the present invention has the maximum peak of the elution curve obtained by the temperature-rise elution fractionation. The temperature is 15 to 80 ° C., and the height of the peak is H
The value of H / W is 2 or more, where W is the width of the peak at one third of the height.

Here, the temperature rise elution fractionation (TREF: Te
(mperature Rising Elution Fraction) is the process of completely dissolving the polymer at a high temperature, then cooling it to form a thin polymer layer on the surface of the inert carrier, and then continuously or stepwise increasing the temperature to elute the eluted components. (Polymer) is recovered, its concentration is continuously detected, and the amount of the eluted component and the elution temperature are determined. A graph drawn by the elution fraction and the elution temperature is an elution curve, from which the composition distribution (molecular weight and crystallinity distribution) of the polymer can be measured. For details on the method and apparatus for measuring temperature rise elution fractionation (TREF), see the Journal of App.
lied Polymer Science, Vol. 26, Nos. 4217-423
1 (1981).

The shape of the elution curve obtained by TREF depends on the molecular weight and crystallinity distribution of the polymer. For example, there are one peak, two peaks, and three peaks. In the two-peak curve, a peak having a higher elution temperature has a higher elution fraction than a peak having a lower elution temperature. There are a case where the peak is large (the peak height is high) and a case where the peak with the high elution temperature has a smaller fraction (lower the height of the peak) than the peak with a low elution temperature. This will be described with reference to the drawings.
2 shows an elution curve in the case of one peak, FIG. 2 shows an elution curve in the case of two peaks, FIG. 3 shows an elution curve in the case of three peaks, and FIG. FIG. 2B shows a case where a peak having a higher elution temperature is higher than a peak having a lower elution temperature, and FIG. 2B shows a case where a peak having a higher elution temperature is higher than a peak having a lower elution temperature. Indicates that the peak height is low.

In the present invention, the maximum peak of the elution curve refers to the peak in the elution curve having one peak, and the maximum peak in the elution curve having two or more peaks.
The peak at which the elution fraction is the maximum (the peak indicated by the symbol p in FIGS. 2 and 3) is shown. Further, in the present invention, H
As shown in FIGS. 1 to 3, / W is obtained by calculating the height of the maximum peak as H, and calculating the width at one third of the height as W. As shown in FIG. 1, when there is one peak, the peak is obtained from the height and width of the peak. In an elution curve having two or more peaks,
The valley between the maximum peak and another peak may be more than one-third of the height of the maximum peak, and depending on the shape, the width at the height of one-third of the height of the maximum peak May be the width of a curve formed from the maximum peak and the other peaks. In this case, the width of the entire curve formed from the maximum peak and the other peaks is represented by W (FIG. 2).
(A) and FIG. 3). Even if there are two or more peaks, if there is another peak whose valley between the maximum peak is less than one third of the height of the maximum peak, such another peak is present. Does not participate in the calculation of the width W (FIG. 2)
(B) and FIG. 3).

The TRE of the present invention thus determined
When the temperature and H / W of the maximum peak of the elution curve by F are within the above ranges, a polyethylene resin material having a narrow composition distribution and uniform crystallinity can be obtained. The balance of heat resistance is improved. On the other hand, T
If the temperature of the maximum peak of the elution curve by REF is higher than the above range, a large amount of highly crystalline components are present in the resin, and the strength of the film is undesirably reduced. On the other hand, if the peak temperature is lower than the above range, the heat resistance of the film deteriorates, which is not preferable. On the other hand, if the value of H / W is smaller than the above range, the crystallinity distribution of the resin is too wide, and the strength of the film is undesirably reduced.

4 Density The ethylene / α-olefin copolymer preferably used as the plastic film material of the present invention is not particularly limited as long as it satisfies the characteristics of the above-mentioned elution curve by MFR and TREF. Is from 0.850 to 0.920 g / cm ³ , more preferably from 0.860 to 0.915 g / cm ³ . If the density is smaller than the above range, it is not preferable in terms of heat resistance, and if it exceeds the above range, the stiffness of the film is increased, and the fit and workability are undesirably reduced. In addition, the density mentioned here is measured based on JIS-K7112 (23 degreeC).

(5) Production method The method for producing the ethylene / α-olefin copolymer is not particularly limited, and the ethylene / α-olefin copolymer can be produced by a known method so as to satisfy the above-mentioned physical properties. For example, as a known method for controlling the molecular weight and the distribution of crystallinity, a polymer having desired physical properties can be obtained by appropriately adopting a method of adjusting the polymerization temperature and the amount of comonomer.

The polymerization catalyst and the polymerization method are also particularly
There are no restrictions. For example, Ziegler type catalyst
(Supported or unsupported halogen-containing titanium compound and organic alcohol
Based on combinations of minium compounds), Philips
Type catalyst (supported chromium oxide (Cr ⁶⁺)), Mosquito
Minsky type catalyst (supported or unsupported metallocene compound and
For combinations of organoaluminum compounds, especially alumoxanes
Based on this), of which tetravalent transition gold
Meta containing genus (titanium, zirconium, hafnium, etc.)
Kaminski-type catalyst using a rocene compound (metallocene
Based catalysts) are particularly preferred.

The metallocene catalysts are specifically described in JP-A-58-19309, JP-A-59-95292, JP-A-60-35005, JP-A-60-35006, and JP-A-60-35006. No. 35007, JP-A-60-35008,
JP-A-60-35009, JP-A-61-130314
JP-A-3-1630088, European Patent Application Publication No. 420,436, U.S. Pat.
055,438, and International Publication WO 91
/ 04257, or a metallocene catalyst or a metallocene / alumoxane catalyst, or a metallocene compound as disclosed in, for example, International Publication WO92 / 07123 or the like, and reacted with the metallocene compound And a catalyst comprising a compound that becomes a stable ion.

As the polymerization method, a slurry method in the presence of these catalysts, a gas phase fluidized bed method (for example,
No. 3011), a solution method, or a high-pressure bulk polymerization method at a pressure of 200 kg / cm ² or more and a polymerization temperature of 100 ° C. or more.

6 Polyethylene Resin Material The polyethylene resin material used in the present invention is mainly composed of the above-mentioned ethylene / α-olefin copolymer. However, a resin mixture with a resin other than the ethylene / α-olefin copolymer may be used. Examples of the resin that can be mixed include high-pressure low-density polyethylene, linear low-density polyethylene, ethylene polymers such as a random copolymer of propylene and ethylene, and other resins (for example, ethylene / α such as EBR and EPR). -Olefin elastomer, etc.), and particularly preferably a high-pressure low-density polyethylene.

By using such a resin mixture, it is possible to impart flexibility to the film and to improve film formation stability. When a resin mixture with the high-pressure low-density polyethylene is used, the ratio of the high-pressure low-density polyethylene in the polyethylene resin material is preferably 2%.
About 50% by weight, more preferably about 5 to 40% by weight.

Further, the polyethylene resin material includes:
Various additives may be added as needed. As the additional components, auxiliary additives generally used in resin molding materials and compositions, for example, antioxidants (phenol-based, phosphorus-based, sulfur-based, etc.), antiblocking agents, slip agents, heat stabilizers, ultraviolet rays Examples include an absorbent, a neutralizing agent, an antifogging agent, a coloring agent, an antistatic agent, an antibacterial agent, and an adhesive. Further, a rubber component such as an ethylene / propylene random copolymer can be blended as long as the properties of the present invention are not impaired. The proportion of the additive component in the polyethylene resin material is preferably 20% by weight or less,
It is more preferably at most 15% by weight.

The polyethylene resin material may be formed by dry blending each of the above components and then directly into a hopper of a film forming machine. Alternatively, a single or twin screw extruder, a Brabender blast graph, a Banbury mixer, It can be melted and kneaded using a kneader blender or the like, and can be used as a pellet in a commonly used method for film production. When the ethylene / α-olefin copolymer is used alone, it may be charged directly into a hopper of a film forming machine to produce a film.

(3) Plastic Film In the present invention, a raw film is produced from a resin raw material such as the above-mentioned polyethylene resin material. The film source is the inflation tubular film manufacturing method, T
The film can be manufactured by using a known film manufacturing method such as a die casting method, but it is particularly preferable to use a T-die casting method in view of flexibility and embossability.

The thickness of the film is not particularly limited, but is preferably from 10 to 150 μm, particularly preferably from 15 to 13 μm.
0 μm. If the thickness of the film is less than the above range, the film is apt to be broken, while if it exceeds the above range, the workability tends to decrease and the production cost increases.

The raw film can be embossed on at least one side, if necessary. In embossing, a film is pressed between a chill roll and a pressure roll having an appropriate surface roughness, and an uneven pattern is provided on one or both surfaces of the film. By embossing, not only the appearance of the film becomes beautiful and its commercial value is improved, but also when it is used as a glove, it has an effect of making it easy to grasp an object due to unevenness of the surface and preventing blocking between films. In addition, a pleasant touch is obtained because the feel is good and there is no sticky feeling, and the film does not adhere to the hand due to good sliding property between the hand, and the workability at the time of mounting is rather high.

The types of emboss include turtle shell, lattice, silk,
Examples include diamond, iridescent, hemp, satin, and splash, and any of them may be used. Emboss depth (JIS-B060
1) is 2 to 300 μm, more preferably 40 to 180 μm. If the emboss depth is less than the above range, the effect of embossing cannot be obtained, while if the emboss depth exceeds the above range, the heat sealability is deteriorated, and the appearance is undesirably rough.

(4) Glove The plastic film glove of the present invention has a hand-shaped outer periphery heat-sealed and a wrist portion opened. Such a glove is obtained by stacking two plastic films obtained by the above method, heat-sealing (heat-welding) the outer periphery to a glove shape in a hand shape, and cutting the outside of the heat-welded portion. . Here, so-called thermal fusing in which thermal welding and cutting are performed simultaneously may be performed. The conditions for the heat welding are not particularly limited, and conventionally known conditions can be appropriately employed.
C., pressure 1 to 10 kg / cm ² , welding time about 0.1 to 1 second. Note that the wrist portion may be left in advance and heat-welded to form an opening. Alternatively, the entire outer periphery of the bill may be heat-welded and cut with scissors to form an opening when used.

Here, a glove mold (die) used for making gloves.
Usually collects the bills of several men and women to determine the size of S, M, L
It can be designed by determining the size of the outer circumference so as to increase the size of the outer circumference, and further appropriately selecting the degree of narrowing of the wrist, the length of the finger, the opening angle, and the like. In the past, if the size of the hand was too close, the film was easily broken and the work was difficult. Since the film is hard to tear due to high heat resistance and heat sealing strength, and the workability is not impaired because the film elongation is high, it is necessary to design gloves that are close to the size of the hand and fit more closely. It is possible. Therefore, when determining the size of the outer periphery based on each of the sizes, it is possible to select a size closer to the hand as compared with the conventional product. Normally, the glove mold designed in this way is attached to a glove bag making machine, and the outer periphery of the bill is heat-welded under the above-described conditions, whereby a desired glove can be obtained.

The glove of the present invention thus obtained is
The wrist part is thin and can take a shape that fits more easily. Conventionally, if the wrist part is thinner, the film does not stretch and it is not easy to attach and detach, and if you pull it forcibly, the heat seal part often peels off and tears, but the glove of the present invention has the film elongation and heat seal strength. Since it is high, it can be easily attached and detached from a thin wrist portion, and it is hard to be broken even when a load is applied to the heat seal portion. FIG. 4 shows an example of the shape (type) of the glove of the present invention and a typical shape of a conventional glove. FIG. 4A shows an example of the glove type of the present invention,
(B) is a conventional typical glove type. Compared with the conventional glove type, the glove of the present invention has a thin wrist portion and can be shaped to fit the hand more.

The gloves of the present invention are inexpensive, have excellent hygiene properties, and can be easily used. Therefore, the gloves can be used up properly for reasons of hygiene such as contamination. Therefore, it can be used in various places such as homes, factories, hospitals, hotels, laboratories, restaurant industries, and various event venues. In particular, the gloves of the present invention are flexible and have high fit,
It is now possible to perform fine fingertip operations that were not possible when using conventional products. For example, in a laboratory, small articles such as sample sorting can be easily picked. In addition, it is possible to pinch a gem clip that has been left on a desk, and the fit makes it easy for the texture of the picked object to be transmitted to the fingers. Therefore, in addition to detailed work in the laboratory, it is effectively used for places where safety and health must be maintained, such as homes, hospitals, hotels, restaurants, etc., and assembly of precision machine parts in factories, etc. be able to.

[0042]

EXAMPLES Hereinafter, the present invention will be described specifically with reference to examples, but the present invention is not limited to these examples. The methods for measuring and evaluating various physical properties in the following examples and comparative examples are as follows.

(1) MFR: JIS-K7210 (19
0 ° C, 2.16 kg load) (unit:
g / 10 minutes). (2) Density: Measured according to JIS-K7112 (23 ° C.) (unit: g / cm ³ ).

(3) Measurement of elution curve obtained by TREF: Measurement of the elution curve by TREF in the present invention was performed as follows. The measurement was carried out using a cloth separation apparatus (CFC T150A, manufactured by Mitsubishi Chemical Corporation) as a measurement apparatus according to the measurement method in the attached operation manual. The cross separation apparatus includes a temperature-rise elution separation (TREF) mechanism for separating a sample using a difference in dissolution temperature,
This is an apparatus in which a size exclusion chromatograph (Size Chromatography: SEC), which separates the separated sections by molecular size, is connected online.

First, the sample to be measured (ethylene · α
-Olefin copolymer) using a solvent (o-dichlorobenzene) to give a concentration of 4 mg / ml.
It was melted at ℃ and injected into a sample loop in the measuring device. The following measurements were performed automatically according to the set conditions.

The sample solution held in the sample loop is separated by using a difference in dissolution temperature in a TREF column (inside diameter of 4 m filled with glass beads as an inert carrier).
m, 150mm length stainless steel column attached to the device)
Was injected 0.4 ml. The sample was cooled at a rate of 1 ° C./min from 140 ° C. to 0 ° C. and coated on the inert carrier. At this time, from the high crystal component (the one that is easy to crystallize) to the low crystal component (the one that hardly crystallizes)
The polymer layer is formed on the surface of the inert carrier in this order. TR
After holding the EF column at 0 ° C. for an additional 30 minutes, 2 ml of the component dissolved at a temperature of 0 ° C. was added at a flow rate of 1 ml / min.
From REF column to SEC column (Showa Denko KK,
AD80M · S, 3 tubes). While fractionation by molecular size was being performed by SEC, the temperature of the TREF column was raised to the next elution temperature (5 ° C.) and maintained at that temperature for about 30 minutes. The measurement of each elution section by SEC was performed at intervals of 39 minutes. The following temperature is used as the elution temperature,
The temperature was raised stepwise.

Elution temperature (° C.): 0, 5, 10, 15, 2
0, 25, 30, 35, 40, 45, 49, 52, 5
5,58,61,64,67,70,73,76,7
9,82,85,88,91,94,97,100,1
02,120,140 ° C.

With respect to the solution separated according to the molecular size in the SEC column, the absorbance in proportion to the concentration of the polymer was measured with an infrared spectrophotometer attached to the apparatus (wavelength 3.42 μm).
m, detection by stretching vibration of methylene) to obtain chromatograms for each elution temperature category. Using built-in data processing software,
A baseline of the chromatogram of each elution temperature section obtained by the above measurement was drawn and subjected to arithmetic processing. The area of each chromatogram was integrated and an integrated elution curve was calculated. Also,
This integrated elution curve was differentiated by temperature to calculate a differential elution curve. The plot of the calculation results was output to a printer. In the plot of the output differential elution curve, the elution temperature is plotted on the horizontal axis.
The difference was 89.3 mm per 0 ° C. and the differential amount on the vertical axis (elution fraction: the total integrated elution amount was standardized to 1.0, and the change at 1 ° C. was defined as the differential amount) at 76.5 mm per 0.1. .

Next, the temperature at the highest peak (maximum peak) from this differential elution curve is defined as the maximum peak temperature, and the peak height of this maximum peak is defined as H, and the height is one third of that. The value of H / W was calculated with the width at W as W.

(4) Tensile modulus: Using a film name (Strograph M50) manufactured by Toyo Seiki Co., Ltd.
mm × 15 mm width test piece) in the MD direction
Measured according to O-1184 (unit: kg / c
m ² ).

(5) Tensile breaking strength: JIS-Z1702 in both the MD direction and the TD direction of a film (dumbbell-shaped test piece shown in FIG. 5) using “Strograph M50” manufactured by Toyo Seiki Co., Ltd. (Unit: kg / cm ² ).

(6) Punching impact strength (unit: kg-cm /
cm) Using a testing machine based on JIS-P8134, the obtained film was allowed to stand for 24 hours or more in an atmosphere of 23 ° C., and after conditioning, the measurement was performed in the same atmosphere. The larger the value, the better the impact resistance. (7) Puncture strength (unit: g) Measuring device (manufactured by Shimadzu Corporation, Autograph DCS2)
000), needle-shaped jig (tip angle; 0.5R, diameter;
1.0 mm, length: 30.0 mm), 500
The film was pierced at a speed of mm / min. The maximum strength when the film was torn was defined as the piercing strength.

(8) Fit: Evaluated according to the following criteria. ◎ ・ ・ ・ Compared with the conventional product, following the movement of the fingers, there is no uncomfortable feeling. ○: Compared to the conventional product, there is a feeling of following the movement of fingers slightly, but there is a sense of discomfort. Δ: Fit feeling similar to that of the conventional product. ×: Compared to the conventional product, feeling of discomfort is strong and does not follow the movement of the finger.

(9) Workability Evaluation was made based on the following criteria.・ ・ ・: The tactile sensation of the object is transmitted, and an operation close to a bare hand can be performed.・ ・ ・: There is a tactile sensation from the object compared to the conventional product. Δ: Only the same tactile sensation as the conventional product can be obtained for the object. C: Workability is remarkably inferior to bare hands.

2 Wearing gloves, the work of grasping and picking up ten staples scattered on the desk was performed, and the time required until all ten staples were grasped was measured. For reference, the same work was performed with bare hands and the time required was measured.
This was 16 seconds.

[0056]

Example 1 (1) Production of plastic film 1 Preparation of polyethylene resin material Ethylene / 1-hexene copolymer (trade name "Kernel KF360", manufactured by Nippon Polychem Co., Ltd.) produced using a metallocene catalyst : MFR = 3.5 g / 10 min, density =
An anti-blocking agent and a slip agent were added to 0.898 g / cm ³ , the maximum peak temperature of the elution curve by TREF = 56 ° C., and H / W = 3.9), and the mixture was melt-kneaded and pelletized.

(2) Formation of Film A film having a thickness of 30 μm and a width of 25 cm was obtained by T-die casting using the pellets obtained in the above (1). Next, the film is pressurized with a chill roll and a pressure roll having a surface roughness of 239, and a depth of 120
μm embossing was applied.

(2) Preparation of gloves 1. Design and production of glove type 83 handprints of 83 men and women were collected to obtain S, M and L sizes.
The outer circumference is around this size (1-8cm on average)
The glove type was designed to be large. Furthermore, in order to reduce the looseness of the palm part, narrowing down from the wrist part to narrow the width of the wrist part, and improving the finger length and opening angle so that it fits more with the finger, glove type ( Mold).

2 Bag Making Test The mold (S size) obtained in the above 1 was attached to a glove bag making machine (trade name “SJP-18”, manufactured by Shin-Etsu Kiko Co., Ltd.). Two plastic films obtained in the above (1) 2 were superposed, and the superposed films were continuously heat-sealed at 80 shots per minute using the mold heated to 180 ° C. to obtain 100 sheets of S I got size gloves. The heat sealing pressure at this time was 3 kg / cm ² . About the obtained glove, the measurement and evaluation of various physical properties were performed by the method mentioned above. Table 1 shows the results.

[0060]

Example 2 The ethylene / 1-hexene copolymer of Example 1 was replaced with an ethylene / 1-hexene copolymer (trade name "Kernel KF370", manufactured by Nippon Polychem Co., Ltd .: MFR =
3.5 g / 10 min, density = 0.905 g / cm ³ , TR
Maximum peak temperature of elution curve by EF = 62 ° C., H / W
= 3.9), except that gloves were prepared, and various physical properties were measured and evaluated. Table 1 shows the results.

[0061]

Comparative Example 1 The ethylene / 1-hexene copolymer of Example 1 was replaced with another ethylene / 1-hexene copolymer (trade name “Novatech SF240”, manufactured by Nippon Polychem Co., Ltd.):
MFR = 2.0 g / 10 min, density = 0.920 g / cm
^3. Maximum peak temperature of elution curve by TREF = 93
C., H / W = 7.5) except that gloves were prepared in the same manner as in Example 1, and various physical properties were measured and evaluated. Table 1 shows the results.

[0062]

Comparative Example 2 The ethylene / 1-hexene copolymer of Example 1 was replaced with an ethylene / 1-octene copolymer (trade name “Do
wlex ・ 2047AC ”, manufactured by Dow Chemical Company: MFR
= 2.3 g / 10 min, density = 0.917 g / cm ³ , T
Maximum peak temperature of elution curve by REF = 76 ° C., H /
A glove was prepared in the same manner as in Example 1 except that W = 0.89), and various physical properties were measured and evaluated. Table 1 shows the results.

[0063]

[Table 1]

As can be seen from the results of these Examples and Comparative Examples, the gloves using the conventional film broke at the time of wearing, but did not break with the gloves of the present invention. Further, the glove of the present invention follows the movement of the finger because of its excellent flexibility, and has a much less uncomfortable feeling than the conventional glove.

Further, in the case of a glove in which a conventional film is formed by a conventional mold and a case in which a film of the present invention is formed by a new hand-fitting type, a stapling needle scattered on a desk is picked up and picked up. As a result, the glove of the present invention was able to perform the same operation in 21 seconds, while the conventional glove required 88 seconds, while the bare glove took 16 seconds to pick up ten stapler needles. As described above, the glove of the present invention is made with a mold that fits more easily, and can be operated with bare hand feeling.

[0066]

The gloves of the present invention are of a type which is inexpensive, hygienic and easy to use, and can be used up properly when soiled or hygienic. Further, it is formed of a material containing no chlorine. In particular, the gloves of the present invention are excellent in piercing resistance (pinhole resistance), mechanical strength, heat sealing strength, durability, etc., have remarkably higher film strength than conventional products, and are flexible and stretchable. Therefore, it is possible to form a mold having a small gap between the hand and a shape close to the shape of the hand, and it is possible to obtain an excellent fit. Therefore, it is easy to attach and detach, and it is easy to follow the movement of fingers,
It is possible to perform fine work of fingertips that could not be done when using conventional products. In addition, the embossability is excellent, and a glove with a good touch can be obtained. Therefore, it can be used in various places such as homes, factories, hospitals, hotels, laboratories, restaurant industries, and various event venues.

[Brief description of the drawings]

FIG. 1 shows an elution curve for a single peak.

FIG. 2 shows an elution curve for two peaks. FIG.
2A shows a case where a peak having a higher elution temperature has a higher peak height than a peak having a lower elution temperature, and FIG. 2B shows a case where a peak having a higher elution temperature has a higher peak height than a peak having a lower elution temperature. Is low.

FIG. 3 shows an elution curve for three peaks.

FIG. 4 is a view showing an example of a glove type according to the present invention;
(A) is a glove type of the present invention, and (b) is a conventional glove type.

FIG. 5 is a schematic view of a dumbbell-shaped test piece used for measuring tensile breaking strength.

[Explanation of symbols]

 p: maximum peak

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) // B29K 23:00 C08L 23:04

Claims (4)

[Claims] 1. A plastic film formed of
The outer periphery of the hand shape is heat sealed and the wrist part is
An open glove having the following physical properties (a) and (b)
Gloves made of plastic film. (A) at least the tensile modulus in the MD direction of the film
Is 150-1000kg / cm^TwoThat. (B) MD and TD tensile fracture of the film
Strength is 200kg / cm ^TwoThat is all. 2. The method according to claim 1, wherein the plastic film is a copolymer of ethylene and an α-olefin having 3 to 18 carbon atoms and satisfies the following physical properties (c) and (d).
The plastic film glove according to claim 1, wherein the glove is made of a polyethylene resin material containing an olefin copolymer. (C) The melt flow rate is 0.1 to 100 g / 10 minutes. (D) Temperature rise The temperature of the maximum peak of the elution curve obtained by elution fractionation is 15 to 80 ° C., the height of the peak is H, and the width of the peak at one third of the height is W.
H / W value is 2 or more. 3. The plastic film glove according to claim 1, wherein at least one surface of the film is embossed to a depth of 2 to 300 μm. 4. The film according to claim 1, wherein the film is formed by a T-die casting method.
3. The plastic film glove according to any one of 3.