KR100190816B1 - Package container material for high viscosity liquid products - Google Patents

Abstract

The present invention relates to a high-viscosity liquid product packaging container material which improves the fluidity of contents when high viscosity contents are used by reducing the friction of the inner surface of the container by molding the container using a material compounded with silicone oil and polyethylene or polypropylene resin.

Description

High viscosity liquid product packaging material

The present invention relates to a high viscosity liquid product packaging container material. More specifically, the present invention relates to a high-viscosity liquid product container material which improves the fluidity of contents when using high viscosity contents by reducing friction of the inner surface of the container by molding the container using a material compounded with silicone oil and polyethylene or polypropylene resin. will be. High-viscosity liquid products in the present invention include liquid detergents having a viscosity of 2 PS (poise) or more, hair cosmetics, basic cosmetics, liquid seasonings and the like.

In general, high viscosity liquid products such as hair cosmetics have high viscosity, and when the consumer squeezes the container for the remaining amount after using more than half of the contents, the speed of the contents coming out is slowed due to friction between the contents and the sides of the container. If the remaining amount is small, the remaining amount cannot be used by the frictional force, and consumers have to throw away the remaining product, or there is inconvenience of mixing and shaking water in a container with a small amount of content.

In order to solve this inconvenience, companies that manufacture high-viscosity liquid products at home and abroad may produce and sell products filled with contents in upside down containers, but in this case, there are design restrictions that the container closure should be flat and wide. -It is impossible to use elliptical, round, and faucet caps.-Also, if the cap is opened due to careless handling during distribution, there is a risk of leakage of contents.

Due to its characteristics, liquid products contaminate the entire product even if only one product is leaked during distribution.In particular, liquid products may cause contamination from the upper box storage products to the lower box products when leakage occurs. There is.

In addition, leaks during store displays, such as retail stores, can contaminate the entire shelf and affect other products near the product.

Therefore, the present inventors have continuously studied to solve this problem, and as a result of molding the container using a compound of silicone oil and polyethylene or polypropylene resin, the frictional force of the container surface is reduced to improve the flowability of the liquid product contents. It has been found that the usability is greatly improved even in the presence of a small amount, thereby completing the present invention.

The present invention relates to a liquid packaging container material formed by melt-kneading 0.3 to 3% by weight of silicone oil in a high density polyethylene, a low density polyethylene or a polypropylene resin in a plastic packaging container.

According to the present invention, a compound compounded by mixing 0.3 to 3% by weight of silicone oil in polyethylene or polypropylene resin may be used, and after mixing the silicone oil and the resin to prepare a master batch, the master batch may be mixed with a resin. It can also be mixed and used.

In this case, when the silicone oil content in the container is used at 0.3% by weight or less, the frictional force reduction effect of the container surface does not appear as expected, and when the silicone oil is used in an amount of 3% by weight or more, the friction surface of the container is proportional to the increase in the content of cyrylcone There is no reduction effect, and may also cause a problem that the adhesion of the ink is lowered when screen printing on the container.

The method which can be preferably used when preparing the liquid product container material according to the present invention includes a blow molding method or an injection blow method.

The sheet of the material according to the present invention was found to have a significantly reduced friction compared to the sheet made of polyethylene only (see Table 1), and the container prepared according to the present invention also has a fluidity of the contents when using a high viscosity liquid product. Significantly improved (see Table 2).

Hereinafter, the present invention will be described in more detail with reference to the following examples.

However, these examples are only for illustrating the present invention in detail, and the technical scope of the present invention in any form is not limited to these examples.

(Example 1)

A master batch of pellets was prepared by melt kneading 8% by weight of silicone oil in low density polyethylene.

(Example 2)

2 wt% of the master batch of Example 1 was mixed with high density polyethylene to prepare a sheet having a thickness of 1 mm by a hot press method (content of silicone oil relative to the total sheet: 0.16 wt%).

(Example 3)

The same sheet as in Example 2 was prepared by mixing 10 wt% of the master batch of Example 1 in high density polyethylene (content of silicon oil relative to the whole sheet: 0.8 wt%).

(Example 4)

The same sheet as in Example 2 was prepared by mixing 30 wt% of the master batch of Example 1 in high-density polyethylene (content of silicone oil in the total sheet: 2.4 wt%).

(Example 5)

The same sheet as in Example 2 was prepared by mixing 40 wt% of the master batch of Example 1 in high density polyethylene (content of silicone oil relative to the whole sheet: 3.2 wt%).

(Example 6)

The master batch of Example 1 was mixed with 2% by weight of high density polyethylene to form a container having a capacity of 250 ml by the blow molding method (content of silicone oil in the total container: 0.16% by weight).

(Example 7)

The same container as in Example 6 was formed by mixing 5% by weight of the master batch of Example 1 in high density polyethylene (content of silicone oil: 0.4% by weight of the total container).

(Example 8)

The same container as in Example 6 was formed by mixing 10% by weight of the master batch of Example 1 in high density polyethylene (content of silicone oil in the total container: 0,8% by weight).

(Comparative Example 1)

The same sheet as in Example 2 was prepared using only high density polyethylene.

(Comparative Example 2)

The same sheet as in Example 2 was prepared by mixing 30% by weight of low density polyethylene with high density polyethylene.

(Comparative Example 3)

The same sheet as in Example 6 was prepared using only high density polyethylene.

(Experimental example 1: comparison of frictional force)

The frictional force of the container material according to the present invention was measured by the following method.

In order to compare the frictional force by material composition, the friction values of the sheets of Examples 2, 3, 4, and 5 and Comparative Examples 1 and 2 were measured using a friction tester, and the degree of smoothness of the sheets was evaluated by sensory evaluation.

The lower the friction value, the smoother the sensory evaluation, the lower the frictional force of the sheet.

Table 1: Friction Force Comparison

From the results of Table 1, the sheets of Examples 3, 4, and 5 containing silicon oil may be found to have significantly lower friction than the sheets of Comparative Examples 1 and 2 containing no silicone oil.

(Experimental Example 2: Comparison of Fluidity when Small Contents Remain)

The container of Examples 6, 7, 8 and Comparative Example 3 was filled with 40g of the hair cosmetic content with a viscosity of 50 PS, and the container was suspended upside down at 180 ° angle to measure the amount of the content which flowed down after 10 seconds. The more, the more excellent the fluidity was evaluated.

[Table 2. Liquidity Comparison]

From the results in Table 2, it can be seen that the fluidity of the high viscosity liquid product is much better than that of the containers of Examples 7 and 8.

No content

Claims (4)

A plastic packaging container comprising: a high viscosity liquid product packaging container material formed by melt-kneading 0.3 to 3% by weight of silicone oil in polyethylene or polypropylene resin. The packaging container material of claim 1, wherein the silicone oil is added to the container by a masterbatch or compound method. The packaging material of claim 1, wherein the packaging material is produced by blow molding or injection blow. The packaging container material of claim 1, wherein the high viscosity liquid product is a kitchen detergent, a hair cosmetic, a basic cosmetic, or a liquid seasoning.