JPH09313572A - Dental hydraulic powder-packed body and powder-packing bag used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dental hydraulic powder packed body, by which packing cost and packing work time are reduced, with compactly packed hydraulic powder and a cup to store water necessary for preparing slurry and a powder- packing bag used therefor. SOLUTION: This dental hydraulic powder packed body is sealed at heat sealed parts on four sides, and hydraulic powder is filled in one closed space of a rectangular pack bag partitioned into two by a heat sealed part set between an opposing pair of heat sealed parts. This packed body is also made by partitioning a rectangular packing bag with an opening 1 on one side and three heat sealed parts 2, 3, and 4 on three sides into two bags of an opened bag side A and a closed bag side B by heat sealing at a heat sealed part 5 between opposing heat sealed parts 2 ad 3, and an easy cut part 6 for separating the closed bag side B from the opened bag side A and forming the opening on the closed bag side B is equipped to make the opened bag side A a powder packing part and the closed bag side B a water measuring part for slurry preparation.

Description

Detailed Description of the Invention [Industrial applications]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental water-curable powder package and a powder packaging bag used for the same, and more specifically, it is prepared by filling an amount of water-curable powder that is normally used once. Dental water-curable powder package which has a packaging part and a cup for containing water necessary for curing the water-curable powder, and can easily prepare a slurry or paste of the water-curable powder, and a powder used for the same It concerns packaging bags.

[0002]

2. Description of the Related Art Dental hydraulic powder is widely used for making a model to reproduce the inside of the oral cavity and for restoration of teeth after mixing with a proper amount of water to form a slurry or paste. By the way, since the amount of the slurry or paste poured into the impression material is substantially constant, it is convenient for the dental water-curable powder to be packaged in small amounts for each usage amount, and further, the slurry. Alternatively, it is convenient to provide a cup capable of measuring water for preparing the paste.

[0003] Conventionally, as a general packaging example provided with a measuring cup, there is known an example in which a measuring cup is attached to a packed body of a filling, and then the package is put in an outer bag and repackaged. The packaging method is disadvantageous in terms of packaging cost and packaging work due to the double packaging, and has a drawback that it is inevitably bulky packaging.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the packaging cost and the packaging work, and to pack water compactly. It is an object of the present invention to provide a dental water-curable powder package provided with a cup for containing the curable powder and water necessary for preparing a slurry or paste, and a dental water-curable powder packaging bag used for the same.

[0005]

That is, the first aspect of the present invention
The main point of this is that the water-curable powder is filled in one sealed space of a rectangular packaging bag that is hermetically sealed by four heat-sealing parts and is divided into two by the heat-sealing parts provided between a pair of opposing heat-sealing parts. The present invention resides in a dental water-curable powder package, characterized in that the second gist is a three-way heat-sealing rectangular packaging bag having an opening at one end, in which heat sealing is performed between opposing heat-sealing portions. The bag is divided into an open bag side and a closed bag side, the closed bag side is provided with an easy-cutting portion for forming an opening while separating from the open bag side, and the open bag side is a water-curable powder. A packaging part, a dental water-curable powder packaging bag, characterized in that the sealed bag side is a water measuring part for slurry or paste preparation.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan explanatory view of an example of the dental water-curable powder packaging bag of the present invention, FIG. 2 is a cross-sectional explanatory view of the dental water-curable powder packaging bag shown in FIG. 1, and FIGS. It is explanatory drawing in the usage aspect of the dental water-curable powder packaging bag shown in FIG.

First, the dental water-curable powder package according to the first aspect of the present invention will be described. The dental water-curable powder package of the present invention (hereinafter, abbreviated as package) is hermetically sealed by heat seal parts on four sides and divided into two parts by a heat seal part provided between a pair of opposing heat seal parts. A dental water-curable powder package, characterized in that one sealed space of a rectangular packaging bag is filled with a water-curable powder.

The package of the present invention is the second one of the present invention described later.
The dental water-curable powder packaging according to the gist of the above may be used, the side having the opening portion may be filled with the dental water-curable powder, and sealed by heat sealing, or a three-sided heat-sealed rectangular bag. Alternatively, the thermosetting powder may be first filled in, and then heat sealing may be performed twice to manufacture. In addition,
The powder can be easily filled by using an automatic bag feeder or the like.

In the present invention, examples of the dental water-curable powder (hereinafter abbreviated as powder), which is the content, include:
In addition to gypsum and cement, various impression materials such as alginate impression materials and agar impression materials can be mentioned. The gypsum used in the present invention may be any of ultra-hard gypsum, anhydrite, and general gypsum. Each of these gypsums is mixed with an appropriate amount of water to form a hydraulic slurry or paste.

The dental water-curable powder package of the present invention is manufactured by heat sealing. Therefore, in the present invention, as the material of the packaging bag, the material used in the conventionally known heat-sealed bag can be used without limitation. Usually, a laminate of a base material and a heat seal layer is used as the material of the bag. The heat-sealing layer is made of a thermoplastic resin film or a coating layer having a melting point which is lower than the melting point of the substrate by about 15 ° C. or more. The above-mentioned laminated body is usually used in a thickness of 15 to 150 μm, and the surface thereof may be appropriately subjected to gravure printing or the like for use.

Specific examples of the above substrate include, for example, stretched films such as nylon 6, polypropylene, polyethylene terephthalate and polycarbonate, polyethylene film, polypropylene synthetic paper, paper, vapor deposited film of metal such as silicon and aluminum, and aluminum. And the like, and a laminate of these. Since the content in the present invention is a water-curable powder, a substrate having low or no moisture permeability is preferably used. Examples of such a substrate include a stretched film of polyethylene terephthalate on which metal is vapor deposited, an aluminum foil, and the like.

Specific examples of the thermoplastic resin constituting the above heat seal layer include, for example, low density polyethylene,
Linear linear polyethylene, propylene / ethylene random copolymer, ethylene / vinyl acetate copolymer, ethylene /
Examples thereof include acrylic acid copolymers, ethylene / methacrylic acid copolymers, styrene / maleic acid copolymers.

In the package of the present invention, on the side of the bag filled with the powder, a cut portion such as a V cut is provided so that the powder can be easily taken out,
It is preferable that a cut portion such as a perforation is provided on the side of the bag that is not filled with the powder so that the bag can be easily separated. Normal,
The bag side, which is not filled with powder, is used as a metering part with a metering line for metering water for preparing the powder into a slurry or paste.

Next, a dental water-curable powder packaging bag (hereinafter abbreviated as a packaging bag) according to the second aspect of the present invention is shown in FIG.
And, as shown in FIG. 2, in the rectangular package of the three-way heat seal parts (2), (3) and (4) having the opening (1) at one end, between the heat seal parts facing each other (2), (3). ) Is provided with a heat seal part (5) to divide into an open bag side (A) and a closed bag side (B), and the closed bag side (B) is separated from the open bag side (A) and 4 is provided with an easily cut part (6) for forming the opening (7) shown in FIG.

The above-mentioned opening bag side (A) is filled with powder from the opening (1) to manufacture a dental water-curable powder package of the present invention, and a water-curable powder packaging part (hereinafter referred to as "packing"). (Abbreviated as a part), and the above-mentioned closed bag side (B)
Is separated from the opening bag side (A) shown in FIG. 3 when using the dental water-curable powder package of the present invention, and then a powder slurry or paste preparation water measuring unit (hereinafter abbreviated as water measuring unit). ) Used as. The reference numeral (10) in FIG.
Indicates a heat-sealed portion applied after filling the powder through the opening (1), and reference numeral (11) in FIG. 3 indicates an opening formed when the package of the present invention is used.

The above rectangular package is obtained by using the above-mentioned two laminated bodies, stacking their heat-sealing layers, and subjecting the three sides to linear heat-sealing according to a conventional method. At this time, as shown in FIG. 2, the heat sealing is performed by forming a seat portion made of a high melting point thermoplastic resin, which is folded in two between the overlapping surfaces of the laminated body on the lower side of the formed closed bag side (B). The film piece (8) for insertion is inserted and arranged so as to be positioned inside the package body on which the bent side is formed, and at the same time, so-called crotch opening does not occur at both ends on the lower side of the closed bag side (B). From the viewpoint of the practicality of the package of the present invention, it is preferable that the punch opening preventing punch hole (9) be formed between the laminate and the film insertion piece. In addition,
As the high melting point thermoplastic resin film, the same thermoplastic resin film as the above-mentioned substrate is used.

According to the above embodiment, the closed bag side (B)
When used as a water metering portion, as shown in FIG. 4, since a stable and wide seat portion is formed by the seat portion forming film piece (8), it can be placed stably.

The heat-sealing portion (5) provided between the heat-sealing portions (2) and (3) can be formed by a conventional method as in the case of the above-mentioned three-way heat-sealing. Since the heat seal part (5) is divided into an open bag side (A) used as a packaging part and a closed bag side (B) used as a water measuring part, its position is appropriately determined according to the quantity balance thereof. Need to decide.

The following example can be given as one measure of the above dimensional relationship. For example, if the amount of gypsum used at one time is about 20 g, the length is about 200 mm and the width is about 90 g.
mm, the heat-sealing allowance is about 5 mm.
It is preferable to apply a heat seal part (5) at a position about 130 mm from the opening (1). The packaging bag having such a dimensional relationship can maintain the flat shape even when the opening bag side (A) is filled with about 20 g of gypsum, and is substantially the same as that normally required on the closed bag side (B). It is possible to store and measure the amount of slurry or paste preparation water. And
In the present invention, it is preferable to determine the dimensional relationship of the packaging bag of the present invention within a range of approximately ± 20% of the above-mentioned typical dimensional relationship.

The above-mentioned easy-cutting portion (6) is usually composed of so-called perforations, but it may be an easy-cutting portion in which diagonal short cutting portions or C-shaped cutting portions are provided in a row. Good.
The easy-cut portion (6) is linearly provided inside the heat-sealing portion (5) on the side of the closed bag (B) in parallel therewith. In addition, when a laminate having a cutting direction is used as the above-mentioned laminate, it is not necessary to provide a cut as described above, and in this case, a single cut point along the cutting direction is the above-mentioned easy cut. A cutting part (6) will be formed.

As shown in FIG. 4, the closed bag side (B) is separated from the open bag side (A) by the easy cutting part (6),
Although it is used as a water metering unit, for convenience in this case, an appropriate metering line (not shown) may be provided on the closed bag side (B). When the above-mentioned laminated body is transparent, such a measuring line may be provided on either the inside or outside of the closed bag side (B), but when the above-mentioned laminated body is opaque,
It is preferable to provide the inside of the closed bag side (B) from the viewpoint of weighing accuracy.

In the packaging bag of the present invention, the packaging section and the water measuring section are integrally formed and have a predetermined volume. That is, the packaging bag of the present invention having such a structure takes advantage of the peculiar fact that the amount of powder and the amount of slurry or paste preparation water used per time of the slurry or paste poured into the impression material are substantially constant. After being completed by using the packaging unit and the water measuring unit, the water measuring unit can be used to conveniently and appropriately prepare the slurry or paste.

The above-mentioned slurry or paste is prepared by mixing water and powder measured in the water measuring section.
The two may be mixed in a separate container after being taken out from the packaging unit, or may be added in the packaging unit by adding water to the packaging unit. The amount of water is approximately constant as a slurry or paste concentration suitable for pouring into the impression material and as necessary to prepare a slurry or paste that is sufficiently hardened after a suitable period of time.

[0024]

As described above, the packaging body of the present invention reduces packaging cost and packaging as compared with the conventional packaging example in which a measuring cup is attached to the packaging body of the filling, and the packaging body is put in an outer bag and repackaged. It has the advantages that the work can be shortened, it can be compactly packaged, and it can be easily manufactured by using the conventional three-way heat-sealing bag technology.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of an example of a dental water-curable powder packaging bag of the present invention.

FIG. 2 is an explanatory cross-sectional view of the dental water-curable powder packaging bag shown in FIG.

FIG. 3 is an explanatory view of a usage state of the dental water-curable powder packaging bag shown in FIG.

FIG. 4 is an explanatory view of a usage state of the dental water-curable powder packaging bag shown in FIG.

[Explanation of symbols]

 1: Opening 2: Heat-sealing part 3: Heat-sealing part 4: Heat-sealing part 5: Heat-sealing part 6: Easy-cutting part 7: Opening 8: Film piece for forming seat part 9: Punch hole for preventing crotch opening 10: Heat-sealing Part A: Opening bag side B: Closed bag side

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Mizuno 1 Toho-cho, Yokkaichi-shi, Mie Mitsubishi Chemical Co., Ltd. Yokkaichi Operations

Claims (2)

[Claims] 1. A four-sided heat-sealing portion is hermetically sealed,
Dental water-curable powder, characterized in that the water-curable powder is filled in one sealed space of a rectangular packaging bag divided into two by the heat-sealed portions provided between a pair of opposed heat-sealed portions. Packaging. 2. A three-way heat-sealing rectangular packaging bag having an opening at one end, which is heat-sealed between opposing heat-sealing portions to be divided into an opening bag side and a closed bag side, and the closed bag side is The opening bag side is provided with an easy-cutting part for forming an opening and separated from the opening bag side, the opening bag side is a water-curable powder packaging part, and the closed bag side is a slurry or paste preparation water measuring part. A characteristic water-curable powder packaging bag for dental use.