JPH01310954A - Innoxious bad-odor reduced flexible tarpaulin - Google Patents

Abstract

PURPOSE:To provide tarpaulin reduced in a bad odor, innoxious to food and having sufficient strength and flexibility by using a large amount of a bad-odor reduced plasticizer and selecting an innoxious bad-odor reduced stabilizer. CONSTITUTION:60-120pts.wt. of an innoxious bad-odor reduced plasticizer is compounded with 100pts.wt. of a vinyl chloride resin having a polymerization degree P of 800-4,500 to prepare a main component, and one or more kind of an innoxious bad-odor reduced stabilizer and one or more kind of an auxiliary agent thereof are compounded with said main component to prepare a composition powder. This composition powder is applied to the upper and lower surfaces of base cloth A in a laminar form to form film layers B and the coated base cloth is molded. When the vinyl chloride resin having a polymerization degree P of 800 is mainly used, it is ideal to use 60pts.wt. of an adipic acid type polyester plasticizer as the bad-odor reduced plasticizer and, when the vinyl chloride resin having a polymerization degree P of 4,500 is main used, it is ideal to use 120pts.wt. of the adipic acid type polyester plasticizer as the bad-odor reduced plasticizer.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial Field of Application) The field of application of the present invention is in the field of food-related transportation bags or containers.

(Prior art) This type of transportation bag or container is mainly made of vinyl chloride resin, mixed with various plasticizers and stabilizers, but the plasticizer is phthalic acid plasticizer. It has a strong odor due to the use of a stabilizer, and the use of evolvated soybean oil as a stabilizer increases the odor.
It was completely unsuitable.

In addition, a typical example of a non-toxic, low-odor film-like material used in the food industry is stretch film (wrap film), which contains less plasticizer than vinyl chloride resin. Therefore, it lacks flexibility and cannot be used as a tarpaulin material in its original formulation.

(Problems to be Solved by the Invention) It is an object of the present invention to provide a tarpaulin that has low odor, is non-toxic for food use, and has strength and flexibility.
Specifically, a plasticizer that is human-friendly and has low odor is used, and a stabilizer that is non-toxic and has low odor is selected to obtain a non-toxic and low odor flexible tarpaulin. be.

■Structure of the invention (means for solving problems) To explain the usage example of the present invention with drawings, first, the base fabric (A
) may be any woven fabric or knitted fabric, but woven fabrics (A>) of polyester fibers, nylon fibers, and vinylon fibers are mainly used.

On the upper and lower surfaces of this base fabric, 6 parts by weight of a non-toxic, low-odor plasticizer was added to 100 parts by weight of vinyl chloride resin with a degree of polymerization ρ = 800 to 4,500.
A composition comprising 1 part of 0 to 120ffl ff as the main component, and one or more non-toxic, low-odor stabilizers and one or more auxiliary agents thereof added to the main component. The film (B) is formed by coating in layers.

When the main material is vinyl chloride resin with a polymerization degree of ρ-800, 60 parts of adipic acid polyester plasticizer is added as a low-odor plasticizer, and when the main material is vinyl chloride resin with a polymerization degree of ρ-4500. It is ideal to use 120 parts by weight of an adipic acid polyester plasticizer as a low-odor plasticizer.

The formulation is shown below: Vinyl chloride resin (p-800 to 4500) 100 parts adipic acid-based polyester plasticizer (no high and low odor plasticizer) 60 to 120 parts / epoxidized linseed oil (non-toxic, low odor stabilizer) ) 1 to 5 /ICa −
ZTI stabilizer (non-toxic, low odor stabilizer) 0.1-3. OII chelator (non-toxic, low-odor stabilizing agent) 0.1-1゜5 Zinc stearate (non-toxic, low-odor stabilizing agent) 0.05-0.511
This is a flexible tarpaulin with low odor, ni-free and strong and flexible for food use.

Example 1 Compounding example Vinyl chloride resin 15=1450 100 parts by weight Adipic acid polyester plasticizer (non-toxic, low odor plasticizer) 80 parts by weight Epoxidized linseed oil (Low odor stabilizer) 1 Ca -Z
N-based stabilizer (non-toxic, low-odor stabilizer) 0.61° chelator (non-toxic, low-odor stabilizing agent) Q, 8n lead stearate (non-toxic, low-odor stabilizing agent) 0.1 part
Color agent 3a M
This is coated in layers on the top and bottom surfaces of a polyester woven fabric using a single calender to form a product.

The low odor of this invented product and the conventional example was confirmed in the following manner.
This is based on the three-point comparison odor bag method of No. The trial results are as follows.

Next, the conventional flexible tarpaulin formulation is shown for comparison. U: Vinyl chloride resin ρ = 1450 100 mm part Phthalic acid plasticizer 80 Epoxidized soybean oil 1 Ba-Z++ stabilizer
2.2N color agent
The low odor property of the polyester fabric was confirmed using a suitable amount and applied in layers on the upper and lower surfaces of a polyester woven fabric using a single calendar method.The results were as follows.

The method for determining the odor concentration in this test is to place clean air into a test bag for 2 days! After leaving the bag at room temperature, the air inside the bag is used as sample air.

In this state, two bags containing clean air are prepared, and another bag containing sample air diluted 10 times is also prepared. These three bags are each A, B, C, D, E, F.
This will be determined by the panelists.

As can be seen from the test results shown in Table 1, each panel could not be distinguished from the other in the case of the product of the present invention.

Therefore, from the formula, it is less than 10gd-1 It shows that it became D-10. ing.

In the case of conventional products, those with sample air diluted 10 times are A and B.
, C, E, and F panelers were able to be distinguished, and the sample air diluted 30 times was able to distinguish between C and F panelers.
is determined.

This shows that the sample air was diluted 100 times, making it impossible to distinguish between all the samples.

Therefore, according to the formula, log d 1-1.241ogd2 1.24 1og d@ = 1.74 1og d4 = 1 or less log ds = 1.24 1og d6-1.74 Cut the top and bottom and average +0111 D-1,365D= It became 23.

It was found that there is an odor when compared with the present invention.

To determine the odor intensity, six panelists sniffed the sample air and determined the odor intensity based on a six-level odor intensity display table. The upper and lower results were cut off and the average value was taken as the odor intensity.

As a result, the product of the present invention had a quantity of 2, and the conventional quantity had a quantity of 3, which also revealed that the product of the present invention was of good quality.

■Effects of the invention The present invention has a polymerization degree of 15-800 to 4500 on the upper and lower surfaces of the base fabric.
60 to 120 parts by weight of a non-toxic, low-odor plasticizer is blended with 100 tons of vinyl chloride resin to form the main component, and one or more non-toxic, low-odor stabilizers are added to this main component. Since a film containing one or more of these adjuvants is applied, a flexible tarpaulin that is low in odor, non-toxic for food use, and has strength and flexibility as a tarpaulin can be obtained and can be put to practical use. It is an invention.

[Brief explanation of the drawing]

FIG. 1 is an enlarged vertical sectional view of the product of the present invention, and FIG. 2 is a partially cutaway plan view thereof. Patent applicant Okamoto Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] 60 parts by weight of a non-toxic, low-odor plasticizer per 100 parts by weight of vinyl chloride resin with a degree of polymerization P = -800 to 4,500 on the top and bottom surfaces of the base fabric.
~120 parts by weight is blended to form the main component, and a film is applied to the main component, in which one or more non-toxic, low-odor stabilizers and one or more auxiliary agents thereof are blended. Non-toxic and low odor flexible tarpaulin.