JPS5820436A - Manufacture of vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing paper-based containers, such as cup containers or composite douches.

Cup containers and composite cans based on paper are made by rolling up a fan-shaped blank board (paper body) A as shown in Fig. 1, overlapping its ends 1.2 and gluing it together, and as shown in Fig. 2. As shown, the structure is consistent with the VC lid B and bottom plate OK. Therefore, as shown in FIG. 3, one end 1 of the blank plate is exposed inside the container. Therefore, if the contents contained in the container are liquids such as juice or alcohol, the contents will seep out from the exposed end 1, resulting in a problem with ejection.

Therefore, in the past, in order to prevent the contents from seeping out, (1) a water-resistant tape was attached by heat welding to the 9111 part located on the inside of the container, ☆::'+
'i'iB Full covering method (', 2) As shown in Figure 4(a), a part of the outer surface of the end 1 located inside the container of the blank plate A is covered along the end. After scraping off, the same figure (b
), at the approximate center of the three ridge-like parts that have been scraped off and become thinner, they are folded back in the direction of the scraping, that is, toward the outer surface, and then turned back once with adhesive.
Is there a way to paste the branch? The thickness of the later folded part 4 is equal to the thickness 8 of the other blank plate part /'f, /f l0
J-H6, the thin plate 3 is formed in advance by scraping so that the thickness n0 is approximately half of the thickness 6 of the blank IIZA.Then, as shown in the same figure (C), the blank plate A ? After rolling up both ends i; 4i 1 and 2, the adhesive part (sealed part) is made as shown in Figure 5.

However, the former method of pasting water-resistant tape has the disadvantage that it requires a large number of man-hours and costs because all new parts must be added. Also, cover one end of the blank board with tape and add this! ii) Since the other end of the blank plate is completely twisted and sealed on part 5, the overlapping part is thick 9, the heat sealing is incomplete, and pinholes occur between the bottom plate and the quality. (There is a problem with C.
In formulas, the upper edge of the container is curled in the same way as the outer IEI, but if the seal TXII';) is thick, this curling process is also difficult.

Shigai (becomes 1)

On the other hand, the manufacturing of containers by the 4-shaped blank plate of the first company and the subsequent ze-returning work was done by the first company with a W
,''' Section T: Since it is cut, the sealing performance and +M gradualness with the bottom plate are good 9, and the quality is also good [, h
'l Tongue work is also easy, but one end of the blank plate 't'
+"+I There is a drawback that it requires a lot of man-hours to scrape off the entire edge to a constant width, which increases the cost of manufacturing the container.

Favorite 1 ((This J:Uuu missing h'(r-1'ff extinguished)(, 7, Stable quality container all cheap and IQura [Shi rate 1 degree manufacturing method all provided) This seven VC be.

In order to achieve such a target sound), the present invention provides a
Roll up and partially overlap both V+l++ and enclose them, form the entire cylindrical wall, and form a plate at the bottom of this circumferential wall. ) Due to the manufacturing method of the container, the width of the tII paper was 1 mm wider than the outer paper, and the same inner paper was pasted and pasted together.
The process of forming the iIfil paper, and folding the entire outer paper t[1] from the middle by one end 11b of the inner paper protruding from the -"flil of the outer paper, and folding it back to the outer paper t forming the inner paper, and rolling it up and forming the inner paper, the inner paper 111 of the iJ1 outer part
Place 10 on 11 Z, how about the bridge surrounding wall? Form 1 (evening). To make a notice, paste one piece of inner paper or a few seconds of outer paper in a line 1'F. In the center of the inner paper part of each outer paper ffj! Public prosecutor, foreign paper 11
The edge of the inner paper protruding from the green 11I is folded back to 111 = 5- and pasted on the inner paper to form the folded part. Next, punch out the blank board in the shape of A and make a body with one end serving as the folded part. It is a paper manufacturing company.

Hereinafter, the present invention' will be explained with reference to examples.

FIGS. 6(a) to 6(d) show an embodiment of the present invention, particularly a method for manufacturing a blank board. As shown in FIG. 5A, an outer paper 6 forming the outer wall of the container circumferential wall is superimposed and pasted on the inner paper 5 forming the entire inner wall of the container layer. As shown in FIG. 7, the outer paper 6 has a structure in which one surface of the paper 6a is coated with a polyethylene layer 6b, and the folded inner paper 5 has a structure in which the inner surface of the paper 5a is coated with a polyethylene layer 5b' for lamination. ,
It is attached to the outer paper 6 through this coating layer.

The inner paper 5 and the outer paper 6 are desirably laminated using a polyethylene extrusion coating, but of course they may also be laminated using all adhesives including -I.

An aluminum foil 5d is attached to the outer surface of the paper 5a of the inner paper 5 using a disinfectant 5C, and a polyethylene layer 5f is applied to the aluminum foil 5d via a disinfectant 5θ. It is pasted to form 6-water-resistant or gas-barrier paper J/B, 3.

Sengata, inner paper 5 is wider than outer A 1 (6, so inner paper 5 is
Both 11 rivers of , for example, protrude by t from the 11 green of Mr. Yume 6. ,,Also, the inner paper 5 and the outer paper 6 have the same n
It is 1.

Next, a folding line 8 is provided along the longitudinal direction at the central portion (1/2/) of the protruding portion 7 of the inner paper 5 by pressing or the like (see (1) in the same figure).

After that, with the front MQ folding handle j8, the outer paper 69 of the tip of the protruding part 7 is
111, the polyethylene layer 5bi of the inner paper 5 is fixed by thermocompression bonding, and as shown in FIG.
io'lf: form.

Next, l/(m), as shown in FIG.
Cut it out to form a fan-shaped blank board (paper body). At this time, two blank plates A are taken per corner, that is, two rows are taken. Therefore, at one end of the blank board A, a folded part (masking part) 9 is formed in which the 11ill green of the inner paper 5 hangs down from all sides of the outer paper 6. Note that the part that is glued to the blank board and is on the side will often come into contact with the contents of the container, so the folded part (masking part) 9
You don't have to do it like this.

Next, using these blank boards A, as shown in Figure 4 (C) of the candy, insert the inner paper 5.1. - and the outer paper 6 are covered with the sealing part, and the inside of the container is barely exposed.

According to such an embodiment, the sealing part of the container has a structure in which the inner paper and outer paper are simply overlapped, and is not as thick as in the past, so that the heat during sealing acts effectively.
Seal can be done reliably.

The probability of pinholes forming between the bent and bottom plate is also lowered, and the reliability of the container is increased. Furthermore, since the seal portion does not become thicker than necessary, the curling process can be performed reliably. In addition, the production of blank plates is easy and suitable for mass production, so production costs can be reduced.

Note that the present invention is not limited to the above embodiments, for example,
As shown in FIG.
After pasting 1 piece of paper parallel to each other and separating it from each other, cut it at the middle part of the inner paper where the gap 11 between both outer papers 6 appears (2
Dot chain thread i)! 1-0) and two blank board materials 1
0 may be manufactured. In this way, it becomes possible to produce four rows of blank boards, and the productivity is the same. 〉And even more blank boards were pasted with outer paper.''
This is possible by increasing the number of sheets.

As described above, according to the present invention, containers of stable W6 quality can be produced inexpensively and in large sizes.

[Brief explanation of drawings]

1 to 3 are diagrams showing a conventional container manufacturing method, in which FIG. 1 is a developed view of a blank plate for forming a container peripheral wall, and FIG.
The figure is also a cross-sectional view of the container, and Figure 3 is the same figure (a).
(b) is a front view of the blank plate, and (C) is a front view of the container. FIG. 5 is an enlarged sectional view of the seal portion. Figures 6(a) to 6(d) are center of gravity and plan views of the -9~ plane showing the entire method of manufacturing a blank plate for a container peripheral wall according to an embodiment of the present invention. Figure 7 is also a partially enlarged front view of the composite material for producing blank plates. Figure ff58 is a front view showing another embodiment. A... Blank board, B... Lid, C... Bottom plate, 1,
2. Both ends, 3. Thin portion, 4. Turned portion, 5.
・Inner group, 5 a + 6 a ・ Paper, 5 b, 6 b, 6 f
... Polyethylene layer, 5c, 5θ... Adhesive layer, 5d
...Aluminum foil, 6-.Outer paper, 7.Protrusion part,
8... Folding line, 9... Folding portion, 10... Trunk cable material. 10- Procedural amendment June 30, 1980 Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office ■, Indication of the case 1981 Samurai Application No. 119878 2°g Akio
Name Vh Container manufacturing method 3 Relationship with the case of the person making the amendment Patent applicant 4, attorney 6, Number of inventions increased by amendment &L. 7. Subject of amendment 1 @ 8. Content of amendment 1 Page 4 of the specification, line 1.3 "Thinning of blank board"
Correct all of the ``thinning of one end of the blank board''. 2. In the 14th line of page 5, change "container circumferential wall" to "container circumferential wall." 3. In the 4th line of the 6th section directly below, ``(inner surface as a container)'' is added between ``outer surface''. 5 Same page 7 line 7 rl/2Aj Tororu no “1/2
・Correct to "L". 6, page 10, line 6, "r5b, 6b, 6f" is corrected to r5b, 5f, 6bJ. that's all

Claims (4)

[Claims] (1) In a container manufacturing method in which a cylindrical container circumferential wall is formed by crumpling paper, partially overlapping both ends, and gluing the two ends, a bottom plate is attached to the lower part of this circumferential wall to manufacture the container. Next, the inner paper, which is wider than the outer paper and has almost the same thickness, is pasted together to form the entire body paper, and one end of the inner paper that protrudes from one end of the outer paper is attached to the outer paper from the middle. A process of folding and overlapping and bonding within the protruding area to form a folded part, and rolling the inner paper all inside and forming the container peripheral wall so that the folded part of the inner paper is located inside the container. Characteristic method for manufacturing containers. (2) The method for manufacturing a soft container as set forth in claim 1, characterized in that a folding line is provided at a protruding end portion of the inner paper that protrudes from one end of the outer paper. (3) The process of attaching an outer paper of approximately the same thickness as the inner paper and narrower than the inner paper to the center of the inner paper, and folding the edges of the inner paper that protrude from both edges of the outer paper to the outer paper side. Please paste it on the inside paper.
]i51 The process of forming the paper material, dividing the paper board stack into two at the center of the width, and if necessary, cutting it at desired intervals in the longitudinal direction. A method for manufacturing a container according to claim 1, characterized in that: (4) A plurality of narrow strip-shaped outer papers are arranged parallel to each other along the longitudinal direction on the main surface of the wide strip-shaped inner paper, and pasted so that the inner paper part is exposed on both sides of each outer paper. A step of cutting the inner paper part between each outer paper along the entire length direction, and a step of cutting the inner paper edge protruding from each outer paper edge back to the outer paper g1 and cutting it along the inner paper. 4. The method of manufacturing a container according to claim 3, further comprising the step of forming the entire body material without folding portions on both sides.