JPH0329767A - Extracted bag material - Google Patents

Abstract

PURPOSE:To prevent an extracted material from leaking out by extending the folded part of a bag body opening and by folding back the front and reverse sides of the extension in alternately opposite directions and combining them with each other. CONSTITUTION:Both planar parts of a bag body 15 have extensions protruding from respective opening edges to form the planar parts 16 of these extensions and one of the planar parts 16 is folded back to the outside of the bag body to form a folded part 18. Both side edges 19 of these parts are bound and fixed to the continuous marginal parts 2a, 3a of the bag body and the end parts of the part folded back to the outside is further folded back to the outside of the bag body. Both side edges of these parts are further bound and fixed to the continuous marginal parts of the bag body to form the outermost side folded part 20. After a desired extracted material has been put into the bag body and the extension tip 21 of the extended planar part 16 has been inserted between the outside folded part 18 and outermost side folded part 20, the outermost side folded part 20 is folded from the planar part 13 side to the planar part 12 side so that the bag body can be closed and the extracted material can be prevented from leaking out of the extraction bag.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to extraction bag materials.

More specifically, the present invention relates to an extraction bag material that does not substantially leak the material to be extracted when the material to be extracted, such as tea, is contained and the opening thereof is closed to perform an extraction operation. It is. [Prior Art] Currently, extraction bags such as tea bags, which contain materials to be extracted such as tea in water-permeable bags, are widely used. However, such extraction bags contain a predetermined amount of the material to be extracted in advance for a predetermined amount, and therefore, such conventional extraction bags cannot be used by storing the desired material in the desired amount. However, it was not always possible to meet the demands of consumers who wanted to do so. For this reason, extraction bag materials that allow consumers to store only the desired material to be extracted, such as crab, are now supplied separately from the material to be extracted. 1276
No. 4 discloses a container in which a pair of velpet type fasteners are fixed inside the upper end of a water permeable bag opening at one end, and a pair of floating bodies are fixed at a position below the fasteners on the outside of the bag. ing. To use this container, after storing the material to be extracted in the bag, close the zipper at the top end and insert it into the extraction liquid, so that a part of the zipper is positioned above the surface of the extraction liquid due to the floating body. As a result, the extracted materials can be prevented from leaking through the gaps in the zipper. However, such containers are bulky due to the pair of zippers and the pair of floating bodies, and are expensive, making them unsuitable for single-use, disposable use. In Japanese Utility Model Application No. 31035/1983, the applicant of the present invention discloses a bag-like body which is a water-permeable bag and is formed from both front and back sides and has one open end.

In this bag-like body, the front and back surfaces each have two folded parts extending from the open end, and one of the folded parts is folded back to the outside of the corresponding flat part, and both side ends thereof are folded back to the outside of the corresponding flat part. is adhered to the outer surface of the corresponding surface portion, the folded portion of the bottom is folded back inside the corresponding surface portion, and both side ends thereof are adhered to the inner surface of the corresponding surface portion.

Fill such a collection bag material with the desired quantity of the material to be extracted, fold the outer folded part of the bag-like body over the open end of the opposite part, and close the open end of the bag-like body. For example, an extraction bag is formed.

However, in such conventional extraction bags,
The outer folded part that closes the open end and the inner folded part facing it are not in close contact with each other, so that a part of the material to be extracted contained in the bag-like body is used.
There was an inconvenience in that about 5 to 15% of the weight of the powder leaked out of the bag during the extraction operation, and this was not completely satisfactory in practical terms. [Problems to be Solved by the Invention] The present invention solves the above-mentioned problems with conventional extraction bag materials, and provides an extraction bag in which material to be extracted does not substantially leak out during extraction operations. The aim is to provide material science. [Means and effects for solving the problems] The extraction bag material of the present invention is made of a water-permeable synthetic fiber cloth material, has a pair of flat parts arranged opposite to each other, and These pair of V-surface parts are a bag-like body which is continuous with each other at the peripheral edge part except for the open edge part. Both of the above-mentioned FtTj parts have extension parts extending from the respective opening end edges, forming flat parts of these extensions, and the other part is folded back to the outside of the bag-like body to form an outer folded part. These edges on both sides are
V4 is fixed to the continuous peripheral edge of the bag-like body,
And the end portion of the outer folded part is further folded back to the outside of the bag-like body, and the outermost folded part is formed by both of these 4l.
It is further formed by being tied and fixed to the continuous peripheral edge of the bag-like body to the l4 edge. The structure of the extraction bag material of the present invention will be explained with reference to the attached drawings. In FIG. 18 and FIG. 1B, the extraction bag material 11 is made of a water-permeable synthetic fiber cloth material, and has a pair of flat parts l2. 13, and these pair of plane parts have the other peripheral edge parts 2a. 3a, the bag-like body 15 is continuous with each other, and the both plane parts have extension parts extending from the respective gap edge parts, and these extensions form a plane part 16, and the other One of them is folded back to the outside of the pouch,
A folded portion l8 is formed, and the edge l9 on the one side of these
are the continuous peripheral edge 2a. of the bag-like body. 3a, and the end portion of the outer folded part is further folded back to the outside of the bag-like body to form the outermost folded part 20. It is formed by being tied and fixed to the periphery. Put the desired material to be extracted into the bag-like body and extend the f-face part l6.
After inserting the extension part tip 2l between the outer folded part l8 and the outermost folded part 20 as shown in FIG. When it was bent as shown in Figure 2B, it could be closed and the material to be extracted could be prevented from leaking out of the extraction bag.

The material of the extraction bag is made of synthetic fiber cloth, which is made of short and long fibers and has a basis weight of 12 to 30 g/m.
” is preferable, and either woven cloth or knitted cloth may be used.

The woven fabric is 15-30 denier monofilament yarn of nylon 6 with a warp density of too-120 yarns/25.4 m.
Plain woven fabric with a weft density of 90 to 110 pieces/25.4 mm is preferable. There are no particular limitations on the dimensions of the extraction bag material, but the practical L width is 5cmN15cm and the length is 7Crfl"25cm. Therefore, the width of the outer folded part is 2cm to 8cm. Width is 2cm~7
cm, and the Y width of the flat part of the extension is generally 2 cm to 8 cm. In the extraction bag material of the present invention, the continuous edge and bottom of the bag-like body and both edges of each folded portion may be bonded with an adhesive, but it is generally preferable that they be fused. [Effects of the Invention] The extraction bag material of the present invention can receive the desired material to be extracted at the opening end and the extended flat part and put it into the extraction bag. You can check the extracted material.

In addition, it can be easily inserted without spilling outside, and it has become possible to make extraction bags with larger materials. The blockage can be easily closed by inserting and bending one of the flat parts of the extension. Even if you put the extraction bag into a pot, teapot, or teapot and pour water or hot water into it, the opening is tightly sealed, so the material to be extracted will not leak out, and it is highly water permeable, so the extraction time is quick. The effect has been enhanced. After use, the material to be extracted can be easily taken out by unfolding it and opening the flat part of the extension. Since there is no turning part inside the pouch, the material to be extracted can be easily released without leaving any residue. Since it is made of synthetic fiber material, even if it is wet, you can pat it dry with a dry cloth several times, making it sanitary, reusable, and economical.

[Brief explanation of drawings]

FIG. IA and FIG. IB are front views of the present invention, respectively;
FIG. 2A and FIG. 2B are side cross-sectional explanatory views of the extraction bag material in a state where the opening of the present invention is closed, and FIG. 3A and FIG.
The figures are a front view and a side cross-sectional view of a conventional extraction bag material, respectively, and FIG. 4 is a side cross-sectional view of the conventional extraction bag material with its opening closed. 1
．． 11... Extraction bag material 2.3.12.1
3. Flat part 2a. 3a... Continuous peripheral portions 12a, 13a... Continuous peripheral portions 4, l4... Bag-like body 5.15... Open end portion 6... ......Outside folded part l6...
...Extension v surface part 7...Inner folded part 17.17°
...Bending ridge line l8・ ◆ 8.9・ l9・ ・ 20 ・ ・ 2 l ・ ・ 22 ・ ・

Claims (1)

[Claims] It is made of a water-permeable synthetic fiber cloth material, and has a pair of flat parts arranged opposite to each other, and these pair of flat parts are connected to each other at the peripheral edge except for one opening edge. The bag-like body is continuous, and each of the two halves has extension portions extending from the respective open end edges, and the other one forms a flat portion of the extension. It is folded back to the outside to form an outer folded part, and the edges on both sides thereof are tied and fixed to the continuous peripheral edge of the bag-like body, and the end portion of the outer folded part is further folded to the outside of the bag. The outermost folded part is folded back to the outside of the shaped body.
An extraction bag material characterized in that these both side edges are further tied and fixed to the continuous peripheral edge of the bag-like body.