JP2579524Y2 - PET bottles - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] This invention is applied to liquor or juice or
The present invention relates to a plastic bottle containing soy sauce and the like. Currently,
The bottle name is commonly used widely,
Bottles formed using polyethylene terephthalate
In the following, in the present invention,
Is that .

[0002]

2. Description of the Related Art Conventionally, in a PET bottle,
Juice, liquor, soy sauce, etc. are stored and usually sold in a sealed stopper . And usually the container is polyethylene terephthalate
The cap is generally made of polyethylene.
This uses flexible polyethylene to tightly and tightly seal the container.
It is closed .

[0003]

The present invention is to provide a However before Symbol conventional pet
Tobottle has the following problems. It is before Symbol Bae
Consumes the contents of the plastic bottle and replaces the plastic bottle with the container
This is the case when reproducing. In such a case, the
Act on the Promotion of Separated Collection and Recycling of Products
In the bylaws, PET bottles are made of the polyethylene lid
Must be removed.
It is difficult for local governments that enforce the above laws to comply
And only a small percentage of local governments barely
Are running. This is cumbersome and costly to remove the cap
Can not be done because it becomes too large. This invention has been made to solve the above problems, an object of the container
Solves the problem of removing the cap when collecting for recycling
And a pet bottle that eliminates the hassle of removing the cap
Is to provide Another purpose is to collect the container
Provide PET bottles that can be recycled extremely effectively during recycling
And other purposes are sake, juice,
Stop fermentation after filling, such as noodle soup, or sterilize
Use for liquid to be filled by heating to high temperature,
The goal is to provide PET bottles that are not attenuated. Another
The purpose of this is to use the conventional
PET bottles that can suppress deterioration of contents much longer
It is to provide.

[0004]

In order to achieve the above object, the plastic bottle of the present invention is described in which the cap 2 has a hardness higher than that of the synthetic resin forming the container 1 described later.
A PET bottle formed of low polyethylene terephthalate , wherein the container 1 with the cap 2 is formed of polyethylene terephthalate.
The cap 2 is placed inside the cap 2 and the cap 2 is placed in the container 1.
When it is attached, it is deformed by the mouth of the container 1
The PET bottle having a sealing portion 7 for closing a mouth portion.
You. The cap 2 is made of polyethylene terephthalate.
And a container 1 to which the cap 2 is attached, and the container
Both poly packing 4 disposed between 1 and the cap 2
Formed by ethylene terephthalate,
Hardness of each polyethylene terephthalate forming 1, 4
Is a plastic bottle characterized by the following relationship, container 1 ≧ cap 2> packing 4 .

[0005]

The present invention is constructed as described above, and includes the cap 2
Or, the hardness of the packing 4 is formed to be lower than the hardness of the container 1.
As a result, when the cap 2 is attached to the container 1,
The portion where cap 2 or packing 4 contacts container 1 is keyed.
The cap 2 or the packing 4 is elastically deformed.
Because it can be in close contact, the container 1 can be sealed.
Wear. And when collecting for recycling container 1
Is the cap 2, or both the packing 4 and the container 1 are
Tylene terephthalate, the same type of synthetic resin
To remove cap 2 or packing 4 from container 1.
It can be collected as it is without taking it. That is, container 1
Trouble to remove cap 2 or packing 4 from
Can be omitted. Moreover, the conventionally recovered polyethylene
When regenerating the lentephthalate container, crush it to make it fine.
Powder and use it in a shirt, skirt,
Textile products such as fabrics, slacks, curtains, carpets, etc.
It is manufactured. In this case, the plastic bottle of the present invention is a container 1
A cap 2 or a packing having a lower hardness than the container 1
4 is mixed to form a fine powder, so the container as a whole
Polyethylene teref with much lower hardness than only one
Tarate powder can be formed and low hardness is required
Said shirts, skirts, jackets and slacks
The best source for textiles such as textiles, curtains, carpets, etc.
Can be supplied, and regeneration can be performed effectively.
Wear. The invention is then constructed as described above, with the cap
2 or packing 4 etc. together with the container 1
Because it is made of phthalate,
It can be used for filling hot liquids. Traditional sake,
For fermentation, noodle soup, etc.
For this purpose, it has been filled by heating to a high temperature . And
In this case, the cap used should be polyethylene.
The outside of the inner lid that is flexible and close to the container
Like an outer lid made of high softening temperature polypropylene etc.
Is attached by pressing against, the loss of elasticity of the inner lid due to the heat,
Due to the pressure welding, a reduction in the degree of sealing due to the loss of elasticity is reduced.
It has been supplemented. Because of this, the cap in that case
Is composed of an inner lid and an outer lid that
It was a complex heavy structure. However, the inventor of this invention
Top 2, packing 4 etc. are polyethylene terephthalate
And heat softening of polyethylene terephthalate
Point 230-240 ° C, melting point 256 ° C
It is. Therefore, since it has a softening point higher than the boiling point of water,
Even if sake, juice, noodle soup, etc. are filled at high temperature
It is not affected and the elasticity does not change.
It is not a complicated double structure but a simple structure.
It can be used for filling heated liquid. Next, this device
In the cap 2, or the packing 4, the container 1
Formed by polyethylene terephthalate
Polyethylene terephthalate is a traditional cap
Gas barrier property is much higher than polyethylene
Therefore, we display plastic bottle of this invention in store for a long time
Even more, the deterioration due to oxidation of the contents is far more
Can be longer. The invention of claim 2 is a cap.
2 has a lower hardness than the container 1, and
A sealed portion 7 that is deformed by the container 1 when wearing is formed.
By doing so, it is possible to further strengthen the sealing when wearing
it can.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a container made of synthetic resin, for example, a bottle. The container 1 was made of polyethylene terephthalate. Reference numeral 2 denotes a cap, which is formed of polyethylene terephthalate, which is the same kind of resin as the container 1, but has a lower hardness by the container 1. In FIG.
Indicates an engagement protrusion. In FIG. 2, reference numeral 4 denotes a packing. In the case shown in FIG. 2, the packing 4 is formed of the same kind of synthetic resin polyethylene terephthalate as the container 1 and has a lower hardness than the container 1. In this figure, the cap 2 is formed to have a lower hardness than the container 1 and a higher hardness than the packing 4 in this case. However, in this case, the cap 2 may be formed to have the same hardness as the container 1. In this case, the cap 2 was formed of the same synthetic resin as that of the container 1, polyethylene terephthalate. That is, the hardness of each of the container 1, the cap 2, and the packing 4 is as follows: container 1> cap 2, and container 1> cap 2.
> Packing 4 and container 1 = Cap 2> Packing 4 And this synthetic resin container 1
May be of a type that is screwed into the cap 2 as shown in FIG. 3, and the cap 2 is provided with a sealing portion 7 that is deformed by the upper end portion 6 of the container 1 as shown in FIGS. 4 and 5. It may be something.

[0007]

[Effect of the Invention] The invention is configured as described above,
The hardness of the packing 2 or the packing 4 is lower than the hardness of the container 1.
When the cap 2 is attached to the container 1
Part where the cap 2 or packing 4 and the container 1 are in contact
This is because the cap 2 or the packing 4 is elastically deformed.
The container 1 can be sealed more tightly.
Can be. And for collection of container 1 for recycling
In this case, the cap 2 or the packing 4 and the container 1 are shared.
Is polyethylene terephthalate, the same kind of synthetic tree
Cap 2 or Packing 4
What is necessary is just to collect | recover without removing from it. Ie container
Troublesome hand to remove cap 2 or packing 4 from 1
The interval can be omitted. Pet bots that have been collected
When it is regenerated, it is ground to a fine powder, which is
Shirts, skirts, jackets, slacks, cartes
Manufactures textile products such as carpets and carpets.
The plastic bottle of the present invention has a hardness of
The low cap 2 or packing 4 mixes to form a fine powder.
So much more than the container 1 alone
Forming polyethylene terephthalate powder with low hardness
The said washer which is required to have low hardness
Pants, skirts, jackets, slacks, curtains,
To fiber products such as do was speak, it is possible to supply the best of raw materials
Can be reproduced effectively. Then this idea
Is configured as described above, and the cap 2 or the packing 4
Is also formed with polyethylene terephthalate together with the container 1.
Because of this, it can be used to fill heated liquid as described below.
Can be used. Conventional sake, juice, noodle soup, etc.
Stop fermentation after filling, or heat to high temperature for sterilization etc.
It has been filled. And the cap used in this case
As a cap, it is flexible and close to the container like polyethylene
Outside the inner lid, a polyp with a softening temperature higher than the boiling point of water
Attach the outer lid made of ropylene, etc.
Loss of elasticity of the inner lid due to the heat
It compensated for the decrease in sealing due to loss of elasticity.
You. For this reason, the cap is removed from the inner lid and outer lid as described above.
It was a complex of a double structure consisting of: But in this invention
Cap 2, packing 4, etc. are polyethylene terephthalate
Made of polyethylene terephthalate
The softening point is 230-240 ° C and the melting point is 256
゜ C. For this reason it has a softening point higher than the boiling point of water
And then add sake, juice, noodle soup, etc.
Is not affected at all, and the elasticity does not change at all,
With a simple structure instead of the complicated double structure
It can be used for heat filling as described above. Next,
In the device of the present invention, the cap 2 or the packing 4, the container
No. 1 is made of polyethylene terephthalate.
As a result, polyethylene terephthalate is
Far more gas barrier than polyethylene etc.
Because of its high performance, the plastic bottle of this invention can be stored in stores for a long time.
Even if it is displayed, the deterioration of the content activity due to oxidation
Can be much longer. In addition, the invention of claim 2
Cap 2 has a lower hardness than bottle 1
And a sealing portion 7 which is further deformed by the container 1 when mounted.
The seal is stronger when installed
can do.

[Brief description of the drawings]

FIG. 1 is a sectional view of a part of a plastic bottle showing an embodiment of the present invention.

FIG. 2 shows a second embodiment of the present invention, and is a cross-sectional view of a part of a plastic bottle .

FIG. 3 is a sectional view of a part of a plastic bottle , showing a third embodiment of the present invention.

FIG. 4 is a view showing a fourth embodiment of the present invention and corresponding to FIG. 3;

FIG. 5 is a view showing a fifth embodiment of the present invention and corresponding to FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Container 2 Cap 3 Engagement concave part 4 Packing 5 Engagement convex part 7 Sealing part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-251357 (JP, A) JP-A-54-148686 (JP, A) Actually open 1983-183346 (JP, U) Actually open 1983 183359 (JP, U) Japanese Utility Model Showa 58-33436 (JP, U) Japanese Utility Model Showa 57-183250 (JP, U) Japanese Patent Publication No. 47-5152 (JP, B1) (58) Field surveyed (Int. ⁶ , DB name) B65D 39/00-55/16

Claims (3)

(57) [Scope of request for utility model registration] 1. A cap 2 for forming a container 1 described below.
Polyethylene terephthalate with lower hardness than synthetic resin
Form shape by, the container 1 fitted with the cap 2, characterized in that formed by polyethylene terephthalate
PET bottle . 2. The cap 2 has a cap 2 on its inside.
When the container is attached to the container 1, the container is deformed by the mouth of the container 1.
2. A sealing part 7 which is provided and seals the mouth part.
PET bottles . 3. The cap 2 is made of polyethylene terephthalate.
And a container 1 to which the cap 2 is attached, and
The packing 4 provided between the container 1 and the cap 2 is shared.
Formed by polyethylene terephthalate
Of each polyethylene terephthalate forming 2, 1, 4
Hardness in the following relation, container 1 ≧ cap 2> packing 4
A plastic bottle characterized by comprising.