JPS5926466A - Package - 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 packaging, and more particularly to breath-through pack (FTP) packaging.

P'RP packaging is widely used in the fields of pharmaceuticals, food, etc., and conventionally, this P'RP packaging has a recess (pocket) for storing articles, as shown in Figure 1.
It has a structure in which a synthetic resin sheet having the following properties and a metal foil are bonded together via an adhesive, and a polychlorinated vinyl resin has generally been used as the synthetic resin sheet. However, polyvinyl chloride resin has problems due to its poor moisture-proofing properties (11 MWJ) and the adhesive used, so recently there has been a movement to switch to polypropylene (Japanese Patent Laid-Open No. 56-74457). ). It is possible to improve moisture resistance by using C-ripropylene instead of polyvinyl chloride, but in this case, a specific adhesive must be integrally laminated with the metal foil to bond the polypropylene and metal foil. It is necessary to use
This laminated metal foil with an adhesive layer has a higher breaking strength than a single metal foil, so it can be used to store items (medications such as tablets and capsules; candy, etc.) in the four parts of the FTP package.
When taking out confectionery such as chocolate, it is necessary to apply force to break the adhesive layer at the same time as the gold FAN, which sometimes causes the item to be crushed in the recess, making it inconvenient to take out the item.

The present invention is directed to an FTP package JjiS (JU) that eliminates all of the above-mentioned drawbacks.

The present invention provides a package made by bonding a synthetic resin laminate and metal foil, each having four parts for storing an article, in which modified bollards are added to the inner layer of the synthetic resin laminate in contact with the metal foil.
It is characterized in that the J-refin-containing resin layer is replaced with a resin layer containing G-refin, and the outer layer is made of a G-refin-based resin.

Synthetic resin laminate l17 used in the present invention (as described above, a modified polyolefin-containing resin layer is used as the inner layer in contact with the metal foil, and a polyolefin resin layer is used as the outer layer. 1. A first polyolefin modified with an unsaturated carboxylic acid or a derivative thereof, meaning a mixture of the modified polyolefin and an unmodified polyolefin] 7. Limiting the blending ratio of both.
Modified polyolefin (17t o, t~Ill
It can be blended within the range of UMj@%. Here, polyolefins include ethylene homopolymers and copolymers of ethylene and other monomers.

Any known propylene homopolymers, copolymers of propylene and other monomers, etc. can be used, and among these, homopolypropylene and high Wi IJJi polyethylene are preferred. In addition, as an unsaturated carboxylic acid; (
, acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, citracone 4 + sorbic acid, mesacon 11, angelic acid, and the like.

In addition, among the @conductors, acids, acids, etc. (water, Nisdel, amides, imides, metals, etc.), the analogy is maleic anhydride, etc. Preferred are water, Nisdel such as methyl acrylate, and amide F'% such as acrylamide.

Stiff hand wounds 6-wa carboxylic acid or that ha! Modification of polyolefin with a conductor
-55545% i Publicly known banknotes marked 11 in publications etc.
Each method can be used for both purposes. For example, a polyolefin and % water maleic acid can be modified by adding a radical initiator in the presence of a solvent or in the presence of alcohol and heating. This anti-U1: Sujiren 7. Rubbers such as liquid rubber and thermoplastic rubber can also be co-existed with C Dosen's Vinyl/L Monomayu Alui. Furthermore, uni gold F+4 compound I disclosed in JP-A-56-74457 may be added. The content of unsaturated carboxylic acid or derivatives thereof in the thus-obtained henkanohorisubashifin is Y! t1 suna, wajiki IJII it &:! +,O,tlUI~15tl%, preferably 001~+omi4t%, more preferably &;lo, 2~2tl%.

Next, the A-refin tree 11f used as the outer layer.
f mainly consists of polyethylene and hollybrobylene, and these are homopolymers and copolymers with other monomers.Furthermore, the upper surface of the polyolefin resin of the mouth or Depending on the situation, other synthetic resins may be used (for example, l, iA-vinyl, redene pattern resin, etc.).

Ethylene-vinyl alcohol co+r<r>, gas barrier synthetic resins such as nylon, and agglomerated vinyl.

A layer of polystyrene resin, etc.) may be provided as appropriate.

The synthetic resin laminate used in the present invention can be obtained by integrally laminating the above components by the known method G.

As for the gold used in the present invention, aluminum foil is most typical, and Koga aluminum foil is particularly preferred.

Next, the thickness G of each layer may be determined by considering the purpose of use, etc., but usually the modified polyolefin-containing resin layer of the inner layer is 5 to 1 ooμ, preferably t110 to 50t.
・The 17th layer is I
o O/7 or higher4. , preferably i, j 200-7
Q Q p, gold 1<s foil Tp=tt:t 5~
50 /Z, fjFmaL, < It-i + 5~
g.

! ! It is.

Figure 2 shows the packaging of the present invention! This is a commercial example, in which synthetic resin 11i' + lamination and polyurethane resin Ji42 is used as the outer layer, and modified polyolefin-containing resin layer 5 is used as the inner layer. The package of the present invention (l:1 joint office,
The article 6 is stored in the first recess 11<5 formed on the resin layer 17, and then the gold foil 4 is pasted to complete the process.

In the device 4- of the present invention, the inner layer of the synthetic resin laminate 1 that comes into contact with the metal ♀i'i 4 is formed of the modified polyolefin-containing resin layer 5. The package of the present invention can be bonded to the metal foil 4 with sufficient strength by the railing, and does not require the use of adhesives as in conventional products. By applying the necessary IC force to break the metal foil, it is easier to remove the item than with conventional packaging.

Moreover, since the synthetic resin laminate of the packaging according to the present invention is made up of 12 to 10 layers of polyolefin, moisture resistance is immediately improved. Moreover, the packaging body of the present invention uses an adhesive. Because there is no medicine, there is no forgetting to remember hygiene 1-.

Food f, (very useful as any packaging).

Next, put the present invention into practice! IM example G will be explained in more detail.

Samurai example 1 High density! ! J″Polyethylene (Melt Indenos (MI)
)'7S'/lo minute, density: 095g/(ze) + +
1 [1 part of h1, 1 part of water maleic acid 10 parts of dicumyl peroxa, (+'0.5 nails) 11 parts of xylene 60 [1rlj l pl (kJ IJIIe,
Melt by heating and incubate at 125°C for 2 hours with 1η heating.
i",,sa"! Ta.

Next, a counter-reprimand: Put the object into the person m's Alton, and the reaction product is itdensaj+, then dry and manipulate it! 1 (Water Malein IN% modified polyethylene was obtained. This modified polyethylene: Cloud of! [Water 71 to inic acid containing clear td, L + JJ
l-% and M engineering: o, 8 g/ + 0 minutes.

■；SoO Example 2 Instead of polyethylene, use homopolypropylene (+u:2?/Nυ, density: 0.91 F//(waste)4 Modified polypropylene was prepared by the same method, and the maleic anhydride monoacid content of the modified polypropylene was 25% by weight.

Example 114M Crushing Example 1 111/This modified polypropylene l0t
l'IfJ%.

High 11' 1 degree Birikokoren (MI: I'jlI 0
min, density: o95q/'crl ) 9 [+ jl
j L(% (7) Re combination '1 Muse wo 22 Q ”
C's tank 1, ';-'c river, out 1, 4% &'l c/
Ijj? , tj to G: , , IsuiU+ , and further double-layer sea 1.4414 ,'2. Using apparatus i'j (screw diameter 3 [1 question and 4 u rra+ coextrusion molding machine)
'4'+;
'/i'1lTt: 0.95y/c7r+) (f:r1+'/', f+1:
Manufactures FJff 5 fj/7, latter 50o7+)
The resulting two-layer sheet was used with a synthetic resin laminate to form four parts (pockets) for the article 11i/delivery using a hot air forming machine in a conventional manner. Next, this sheet is fed to the pharmaceutical tablet filling line [7] After storing the tablets in the four parts, 2 U O'C, + kg/cnI, for 5 seconds'
Hot-sealed with 20μ aluminum foil using ILF+.

The peel strength of the aluminum foil and double layer sheet of this package was measured using an Instron tensile tester and was 2.2k.
g/20 moe. Also, the size of the pocket that encloses the lock ^11 is long diameter 20i wn, short % a 6r.
Mn.

? 'I? The diameter was 7.4 wm, and the radius of curvature at the bottom was 1). The moisture permeability of this package was measured for each pocket enclosing a tablet. The results are shown in Table 1. The encapsulated tablets could be easily removed by bursting the aluminum foil, and it was confirmed that the tablets were easily removed.

Example 2 The modified polypropylene obtained in Production Example 2 was used instead of the modified polyethylene used in Example 1, and homopolypropylene (MI: 0.9
F//NO content, density: 0.9 + 7/cr/I)
In Example 1, a package was manufactured in 1-7 in the same manner as in Example 1.

Seal strength fl of the resulting package: 38 to 9/2
It was omm. Also, it was easy to take out the tablet. Moisture permeability II'L per IX1 box
is shown in table p451.

Comparative Example 1 Homopolypropylene (MI:
9Li/+o min, density: 0.917 /Cn! )
A single layer sheet (layer 1115 Op) was obtained. Using this sheet, a pocket for enclosing a tablet was formed in the same manner as in Example 1.

On the other hand, 50 p 1 of homopolypropylene resin containing modified polypropylene was placed on a 20 μ thick hard aluminum foil.
7, and a first aluminum 221 coated with the resin was obtained.

Next, the sheet No. 011 is supplied to the pharmaceutical tablet enclosing line 1.
7. After storing the tablet, 200″c, +i+g/i, +
It was hot-sealed with the aluminum foil for seconds.

The moisture permeability of this package was measured in the same manner as in Example 1. The results are shown in Table 1. Also, what about the test for taking out the sealed tablets? In this case, a large amount of force is required to burst the aluminum foil coated with the adhesive resin layer, and it is inconvenient to take out the aluminum foil compared to that of Example 2.

Comparative Example 2 High-density polyethylene (MI: 417-/IIJ min+
4% 1-1(:o,qsy/d) 5o
O-mel thick polyvinyl chloride (density: 14 t/cr
d) A two-layer sheet having a thickness of so μ was prepared by dry lamination, and a recess 1f19 for tablet insertion was formed in this sheet in the same manner as in Example 1. As in Example 1, the G tablet was charged to 11V and then 11V to 21Jμ.
Aluminum foils were bonded together using reinforced vinyl-vinyl acetate copolymer as an adhesive.

The moisture permeability of this package was measured in the same manner as in Example 1.

The results are shown in Table 1. In addition, the removal of tablets that were 1 inch thick [7
In this case, since the adhesive layer was present together with the aluminum foil, a great deal of force was required [7, and it was difficult to remove the aluminum foil.

Comparative Example 5 Same as Comparative Example 1.
4Y/(Go) single layer sheet (layer thickness 530μ) (J+
Ta.

Using this sheet, a pocket for enclosing a tablet was formed in the same manner as in Example 1.

After the tablets were delivered to the IIM, a 20μ aluminum foil was pasted using vinyl chloride-vinyl acetate copolymer as an adhesive.
I set it. The moisture permeability of the package was measured in the same manner as in Example 1,
The results are shown in Table 1. Note that it was inconvenient to take out the enclosed @1c agent.

Table 1 Middle: 'j7'24 hr, Anm) (g/l pocket measurement conditions: temperature 40°C2 relative humidity 90%, 7
Figure 1 is an explanatory diagram of a conventional packaging body, and Figure 2 is a detailed explanatory diagram of the present invention.

1...Synthetic resin laminate, 2...IJN resin resin layer, 3...Modified polyethylene T-fin-containing resin layer.

4...Metal foil, 5...Recess (Hokent), 6...
Goods.

7...Adhesive layer l Fraudulent applicant: Idemitsu Petrochemical Co., Ltd. Shionogi II! ! Kuwa Co., Ltd.

Claims (2)

[Claims] (1) In a package formed by laminating a synthetic resin M layer having four parts for storing an article and a metal foil, the inner layer in contact with the metal foil as a synthetic resin laminate is a modified polyolefin-containing resin layer. A packaging body characterized by using a polyolefin-based (grease-resistant layer) for the outer layer. (2) The modified polyolefin is modified with an unsaturated carboxylic acid or tenon, 4 to d form/ζbo IJ, and the acid addition species of rufin is O, UO+ to 15% by weight. 1. Packaging as described in section.