JPH02219773A - Bag for clothing storage - 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 [Field of Industrial Application] The present invention relates to an insect-proof packaging bag suitably used for preserving clothing.

[Prior Art] Conventionally, p-dichlorobenzene, naphthalene, camphor, and the like have been used as insect repellents, particularly insect repellents for clothing. However, these conventional insect repellents
Each of them emits a unique strong odor, and after storage, clothing (9 clothing, accessories made of natural fibers such as feathers, 2 fur, etc.),
Includes bedding. (The same applies hereafter) has the disadvantage that it leaves behind an odor. Also.

Naphthalene and camphor are less effective against clothing pests such as burs, burrs, and snail beetles. The toxicity and environmental pollution of p-dichlorobenzene have also become a problem.

Furthermore, all of these conventional insect repellents are used in thick containers such as costume boxes and chests of drawers, making the containers heavy and expensive.

[Problems to be solved by the invention] Due to changes in lifestyles in recent years, the periods in which clothing is used have diversified, and along with this, storage methods have changed from traditional clothing boxes to simple forms such as polyethylene bags. is increasingly being demanded.

It is often thought that storing clothing in polyethylene bags and sealing them tightly prevents pests from entering the bag, thereby providing an insect repellent effect. However, in reality, the eggs of clothing pests such as burs are often already laid on clothing before it is stored, and the eggs and newly rumored larvae are so minute that they cannot be visually identified, so they are stored and stored. They often suffer from unexpected feeding damage. Also, because the larvae themselves are small, their presence may be overlooked. Therefore, it is conceivable to store the insect repellent in a bag along with clothing.

However, p-dichlorobenzene, naphthalene, and camphor, which are conventional insect repellents, easily penetrate synthetic resins, especially polyethylene or polypropylene fills 14, so when they are used in polyethylene bags, for example, their odors are released to the outside. Not only that, but also the problem arises that chemical vapor of sufficient concentration to exert an insect repellent effect cannot be obtained. Pyrethroid insect repellents have a weak odor, but they are similar in that the active ingredients permeate through the polyethylene film and lose their insect repellent effect.

In addition, there is an insect repellent (Japanese Patent Application Laid-Open No. 62-26201) that volatilizes alcohol as an insect repellent ingredient in a closed container, but in this case, the disadvantage is that the alcohol may come into direct contact with clothing and stain it. have

As a result of extensive research into clothing storage bags, the present inventors have found that a synthetic resin bag containing 1,3.5-)rioxane (hereinafter simply referred to as "trioxane") satisfies the purpose. This discovery led to the completion of the present invention.

That is, the present invention is a bag for storing clothes, which is characterized in that an insect repellent containing trioxane as an active ingredient is contained in a bag made of two synthetic resins.

The insect repellent used in the present invention contains trioxane as at least one of its active ingredients.For ordinary purposes, a solid trioxane preparation in the form of powder, granules or tablets is used.

There is no preclude from using an aqueous solution or an organic solvent solution which optionally contains trioxane.

The synthetic resin used for the bag of the present invention is polyethylene,
Polypropylene, polyvinylidene chloride.

Polyvinyl alcohol, polyester, polyamide and polyvinyl acetate are preferred.

Furthermore, composite materials of synthetic resins reinforced by coating or coating with materials having no gas barrier properties such as paper or non-woven fabrics for reinforcement or decoration can also be used.

The thickness of the synthetic resin film forming the bag varies depending on the type of bag material. For example, in the case of polyethylene or polypropylene, 0.02
~0.1 mm is preferred. Thinner or thicker ones may also be used.

The dose of insect repellent varies depending on the amount of clothing, condition, etc. 2 Usually, the dose is 0.00 as trioxane per liter of space volume.
1-2. Preferably, Gg is used.

The clothing storage bag of the present invention is produced, for example, by the following procedure, but is not necessarily limited to this. Namely, clothing is placed in a polyethylene bag together with an insect repellent containing trioxane as an active ingredient. . Next, the openings of the nine bags were sealed by heat sealing.

2. Tie tightly or as a sealing method.

It is also preferable to use a bag equipped with a zipper for opening and closing, that is, a so-called zippered plastic bag.

As a result of repeated studies on the material of the bag of the present invention, the present inventors surprisingly found that trioxane vapor, despite its high vapor concentration, The present invention was completed based on the discovery that it is extremely difficult to penetrate a film made of polyethylene or polypropylene.

In other words, the present invention applies to bags made of polyethylene or polypropylene!・This is a bag for storing clothing, which is characterized by containing an insect repellent containing rioxane as an active ingredient.

Polyethylene and polypropylene are preferred as resins for use in clothing storage bags because they have high stability as materials and are inexpensive.

It is surprising that polyethylene and polypropylene films, which are generally said to have high permeability to organic compound vapors, have difficulty permeating trioxane vapors.

Plastic films such as polyester, polyvinylidene chloride, or polyvinyl chloride, which are said to have high gas barrier properties, or aluminum foil on these.

It goes without saying that composite materials laminated with cellophane, polyethylene or polypropylene are also effective in blocking trioxane, but the drawback is that these materials are generally more expensive than polyethylene and polypropylene. Note that these materials with high gas barrier properties are also effective when used together with conventional insect repellents such as p-dichlorobenzene.

Here, experimental examples show that trioxane is much less permeable through polyethylene films and polypropylene films than other insect repellents in comparison to its saturated vapor concentration.

(Experiment example) 2 g of various insect repellent powders were placed in 5 cm x 7 cm bags made of 0.04 mm thick low-density polyethylene film and 0.08 mm thick unstretched polypropylene film, and the openings of the 2 bags were placed. Heat seal.

The bags were hung in a room maintained at a temperature of 25±1'C. The weight loss was measured after 24 hours and the results are shown in Table 1 for the polyethylene bags and in Table 2 for the polypropylene bags. For reference, the saturated vapor composition of each drug is also listed.

Table 1 Table 2 [Example] Next, the present invention will be explained in more detail with reference to Examples.

Example 1 0.25 g of trioxane was placed in a low-density polyethylene film bag with a thickness of 0.04 m + n manufactured by Nippon Sha Co., Ltd., and 10 50-day-old burr larvae (approx. Three wire mesh baskets with a diameter of 3 cm containing 50 mg) and 2 cm square wool fabric were fixed. Subsequently, 2 liters of clean air with sufficient humidity was filled, and the two bags were heat-sealed and sealed. The net size of the bag was 30cm x 1Bcm.

After leaving the bag in a constant temperature room at 23° C. for 48 hours, the bag was opened, and the survival of the burr larvae and the amount of feeding damage to the wool fabric (weight loss f) were examined.

Comparative Example 1 An insect control test similar to Example 1 was conducted using the same amount of p-dichlorobenzene instead of trioxane.

Comparative Example 2 An insect control test similar to Example 1 was conducted using the same amount of naphthalene instead of trioxane.

Comparative Example 3 An insect control test similar to Example 1 was conducted using the same amount of d,l-camphor instead of trioxane.

Comparative Example 4 (R,5)-1-ethynyl- instead of trioxane
The same amount of 2-methylbent-2-enyl (IR)-cis, transchrysanthemate was placed in a small petri dish, and the same insect repellent test as in Example 1 was conducted.

Control Example 1 The same insect repellent test as in Example 1 was conducted without using any insect repellent.

Example 1. The results of Comparative Examples 1 to 4 and Control Example 1 are shown in Table 3. The amount of feeding damage was expressed as an average value per 10 heads.

Table 3 [Effects of the Invention] In the clothing storage bag of the present invention, trioxane vapor having an insect repellent effect is generated from the insect repellent containing trioxane as an active ingredient, while trioxane vapor is difficult to permeate through polyethylene or polypropylene. Therefore, the concentration of trioxane in the atmosphere inside the bag quickly reaches an effective concentration, and thereafter this concentration is maintained for a sufficient period of time for the insect repellent effect to appear.

During this time, the clothing pests are quickly killed by the action of trioxane. During long-term use, trioxane gradually permeates through the bag and is lost, but since the two bags are sealed, no new clothing pests can enter, and the clothing can be stored safely. Moreover, there is no risk of staining clothing.

Furthermore, by using the clothing storage bag of the present invention,
It is possible to avoid the use of p-dichlorobenzene, which is problematic in its toxicity and environmental pollution.

Claims (2)

[Claims] (1) A bag for storing clothing, characterized in that a synthetic resin bag contains an insect repellent containing trioxane as an active ingredient. (2) A bag for storing clothing, characterized in that the bag is made of polyethylene or polypropylene and contains an insect repellent containing trioxane as an active ingredient.