JPS6031759A - Deodorising padding - 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 a filling object having a deodorizing effect, and more specifically, the present invention relates to a filling object having a deodorizing effect. This product relates to stuffed objects such as futons, pillows, cushions, and rope toys.

Conventional technology Normal textile products have a large surface area per unit weight, so they easily absorb odors. For example, if you stay in a room filled with cigarette smoke for several hours, the cigarette smell will stick to your clothes and it will be difficult to do so. There are times when you can't get it (you have to experience it).

Among textile products, stuffed objects have a particularly high air content filled with fibers inside the 1111 ground, so they have a stronger odor absorption effect, so when you stay at an inn, you may notice an indescribably unpleasant odor coming from your futon. This is why when you visit other people's homes, you experience the smell of socks around the kotatsu that hits your nose. 'Furthermore, in the case of bedridden patients, their bedding tends to be hung outside to dry or washed less frequently. Many cases have also been reported. These cigarette smells.

Human body odor, urine odor, etc. are usually felt particularly strongly during the rainy season or summer.

To solve this problem, activated carbon, which has high adsorption properties, has conventionally been mainly used as a deodorant. For example, a mat in which activated carbon is sealed inside a filling object has been proposed (Japanese Utility Model Publication No. 54-124713). Alternatively, a pillow has been proposed in which a bag filled with activated carbon is provided (Japanese Utility Model Publication No. 54-124717).

Additionally, mattresses made from activated carbon processed into sheets are commercially available ("Katsusei" manufactured by Yasuya ■).

However, activated carbon has a high adsorption capacity and has a deodorizing effect in a dry atmosphere, but when it absorbs moisture, the adsorption capacity rapidly decreases, and the deodorizing effect is also drastically reduced.

Also, odor components (foul odors) that are once adsorbed as the temperature changes.
is known to re-release.

Furthermore, when activated carbon is used, there is a problem that no matter how much effort is put into its shape, the properties such as elastic recovery, lightness, flexibility, and bendability, which are basically required for filling pressure, will be significantly reduced. there were.

Purpose of the Invention In view of the above-mentioned circumstances regarding deodorizing fillings, the object of the present invention is to provide a long-lasting deodorizer for the fillings, the bad odors generated around the fillings, and the bad odors generated under high humidity conditions. Cushioning properties and drape properties that are effective and required for stuffed objects.

To provide a deodorizing stuffing whose properties such as heat retention and breathability are maintained as they are.

Summary of the Invention: The present invention provides (1) a deodorizing filling material containing fibers to which a deodorizing agent is applied, characterized in that a water-soluble deodorant and a hydrophilic compound coexist in the filling material;

(2) The deodorizing filler according to claim 1, wherein the fibers are footed with a hydrophilic compound.

(3) The deodorizing filling object according to claim (1) or (2), wherein the water-soluble deodorant is an isolated product from a plant of the Camellia family.

(Claim No. 4,1 in which the fibers are microporous fibers (
Go to 1) and (3) above with the deodorizing filling material described in any of the above items.
sell.

Here, water-soluble deodorants do not simply refer to water, but also include hydrophilic organic solvents that have a high affinity with water.
! Methyl alcohol, ethyl alcohol.

Refers to deodorants that easily dissolve, such as propyl alcohol, 7setone, and ethyl acetate. For example, liquid distillates obtained by extraction and separation from the leaves of other plants of the Camellia family, such as tea, sasanqua, Koshirae, Sakaki, and Hizakaki, etc. Public bulletin). Furthermore, water-soluble deodorants such as ``Noncent'' or ``Nonsumeru'' (manufactured by Riverside Chemical ■) and Chirui and ``Airwick'' (manufactured by Omi Nidai ■) are known as commercially available products.

The fibers to which the deodorizing agent is applied may be any material conventionally used for filling materials. For example, natural fibers such as cotton feathers, cellulose-based semi-synthetic FFL fibers, polyester, boria "robilene", poly 7
Crylonitrile.

These include synthetic fibers made of polyvinyl chloride, etc. The fibers may have a round cross section, hollow fibers, irregularly shaped hollow fibers, or the like, but irregularly shaped hollow fibers are preferred in order to enhance the deodorizing effect and improve the durability of the deodorizing effect. Further, as the fine silk structure of the fiber, it is preferable that the fiber has micropores in which the micropores communicate from one end of the fiber to the other end.

The degree of hollowness needs to be adjusted to 50 or less by volume of the entire fiber including the micropores. If it exceeds 50%, the hollow portion will be crushed and the resistance to settling will be extremely reduced. In addition, long fibers such as opened crimped tow may be used as the fiber form (or carded short fibers may also be used). It is possible to increase the amount of odorant attached, but if it is less than 3 denier, the original properties of the stuffed object, such as cushioning properties, will be lost.

This is not preferable because it reduces bulk and durability.

Furthermore, the fibers to which the deodorant is applied preferably have hydrophilic properties. Examples include cotton, cell-sheathed synthetic fibers, and hydrophobic synthetic fibers to which a hydrophilic compound has been added.

Examples of hydrophilic compounds include methoxypolyethylene glycol esters of acrylic acid or methacrylic acid (
The polymerization degree of polyethylene glycol is 1 to 20), polyoxyethylene glycol dimethacrylate (molecular weight 25
0-1 s o o ) Polyoxyethylene modified cold diacrylate (molecular weight 250-1 s o o ) y
, c (4? Kaisho 5fi-477
Publication No. 5 To give a specific example of a deodorizing filling material, for example, a hollow microporous material with a hollowness of 20%.
Polyoxyethylene glycol diacrylate metal material is adsorbed at 0.1 wt.A% or more on carded short fibers, and then a water-soluble deodorizing agent is applied to the fibers to form a filling material. Good to use. Addition of a polyoxyethylene glycol diacrylate compound has the effect of increasing the durability of the deodorizing effect of the water-soluble deodorant.

In a stuffed body made of fibers coated with a water-soluble deodorizing agent, the relative humidity inside the stuffed body is preferably maintained at 154 R,H or higher, preferably 404 R,H,
That's all. That is, in the case of a water-soluble deodorant, it is necessary for an appropriate amount of water to coexist with the deodorant in order to exhibit the deodorizing effect, and the conditions for developing the deodorizing effect are completely different from those in the case of activated carbon.

Figure 1 shows the effect of allowing moisture to coexist with a deodorant. In Figure 1, the horizontal axis shows relative humidity [R, H,, (%)]
] and the deodorization rate is plotted on the vertical axis.

From Figure 1, the deodorizing effect is 15 degrees R, H, and Rakanayo 5.
R, H increases rapidly under atmospheric conditions of 1.40% and above, the deodorizing effect reaches 95% or more.

The method for measuring the deodorization rate is as follows.

Method for measuring deodorization rate A sealed container is filled with a certain concentration of foul-smelling gas such as ammonia, trimethylamine, hydrogen sulfide, etc., and at the same time a certain amount of deodorizing agent is added, and the relative humidity inside each container is After a certain period of time, the gas in the container is increased under different atmospheric conditions, and the concentration is measured by neutralization titration with acid or alkali depending on the type of test gas (foul-smelling gas).
The deodorization rate was improved. Note that hydrogen sulfide was absorbed into a caustic soda aqueous solution and measured by the iodine reduction method.

Next, a method for manufacturing the deodorizing filling object of the present invention will be explained.

First, water-soluble deodorants may be deodorants that are soluble in aqueous solvents, including water, as mentioned above. An aqueous solution of the obtained liquid distillate (Fretsushikoshiraimatsu FS-500; manufactured by Shiraimatsu Shinyaku ■) or the like is suitably used. As a method for imparting water-soluble disinfection ':Ti 11 to fibers, conventionally known '77 methods such as the dipping method and the Sput method are recommended. The fiber to which the deodorant is imparted is C: hydrophilic ++C natural fiber such as cotton, island fiber, microporous fiber (Unexamined Japanese Patent Publication Q356-
No. 20612, Japanese Unexamined Patent Publication No. 11212/1983),
It is preferable to use a microporous polyester fiber with an irregular hollow cross section, or a polyester fiber that has been subjected to a hydrophilic treatment. Another method of applying deodorant is
1.60-1.64 and pore volume 0.32-0.41 c
A method for coexisting deodorizing components using a clay material of
When methods Nos. m) and 7) are used, it is necessary to fix the unglazed material powder containing the deodorizing component to the fiber surface with a binder, which lowers the processability of cotton filling production.

In the method for producing the deodorizing filling object of the present invention, a water-soluble deodorant is added in 1. After pulverizing into fine particles with a particle size of , Op or less, preferably 0.1μ or less, the emulsion or suspension is applied to microporous fibers, microporous fibers with irregular hollow cross sections, or amorphous fibers. Alternatively, in order to increase the efficiency of applying the deodorant to the fibers, it is preferable to apply the deodorant in liquid form (for example, in the form of a solution). A conventionally known method may be used for manufacturing the filling object.

That is, the drawn tow was crimped and heat set, then cut into short fibers, and then carded to form a web. The timing of applying the deodorant is not particularly limited, but if it is applied in liquid form, it is preferable to apply it immediately before cutting.

Next, in the present invention, it is necessary to maintain the moisture content (relative humidity) in the side of the deodorizing filling material at a certain level or more.

This is because water-soluble deodorants do not exhibit their deodorizing effect unless a certain concentration of water is present. For a water-soluble deodorant to exhibit a deodorizing effect, at least 1s% R, H,
The present inventors have discovered that the coexistence of moisture at a level higher than (relative humidity) is essential. After further detailed study, we found that in order to achieve the desired deodorizing effect, 40% R.
It is desirable to coexist with water of H. or more. The relative humidity in the side area is 1 s % R, H, preferably 40-R or more.
,)l, To stay busy, use the following methods.

For example, there is a method in which the fibers to which a water-soluble deodorizing agent is applied are themselves highly hydrophilic fibers and the fibers themselves contain water. For this purpose, for example, the fiber can be made into a unique hollow 5-microporous shape to allow the fiber to absorb moisture, or the fiber can be semi-chemically coated with a hydrophilic polymer to give a hydrophilic group to the fiber surface, resulting in a polar effect. There are methods for attaching moisture. Hydrophilic polymers include N-methylol acrylamide polymer, ethylene bisacrylamide posimer,
Polyoxyethylene-polyoxyethylene p-pyrene polymer
(Molecular! 600 to 5OO), dimethylaminomethyl methacrylate polymer, polyoxyethylene-containing 7-acrylate polymer, polyoxyethylene-containing methacrylate polymer, polyethylene glycol-polyethylene terentele 7-talate copolymer, and the like.

Hydrophilic polymers can be applied to fibers by spreading methods in a solution state, spraying methods, impregnation methods in a solution or suspension state,
A spray method or the like can be used. For example, the above-mentioned hydrophilic compound may be used alone to impart fiber properties, but it may also be used in combination with a hydrophilic spinning oil. As the hydrophilic spinning oil agent, for example, a furkyl phosphate salt such as potash cetyl phosphate, a polyphoxydiethylene (2 to 20) furkyl ether phosphate salt, etc. may be used.

The side material used for the stuffing object may be one commonly used.

Example 1 An undrawn polyethylene terephthalate yarn having a single yarn denier of 6 denier was stretched, crimped, and heat set to form a tow of 400,000 denier.

Immediately before cutting the tow into short fibers, 500 (manufactured by Shiraimatsu Shinyaku ■) was used so that the adhesion rate was 0.1% by weight based on the fiber weight of the tow. After spraying, the fibers were put into a card machine to create a web.

This web is covered with a fabric side made of polyethylene prephthalate fibers to produce a deodorizing filling material. The deodorizing filling material is shown in Table 1 along with i and 11 methylamine 5000F.
The deodorizing efficiency was measured after being left in a closed container for 10 minutes under the atmospheric conditions of temperature and relative humidity as shown in Figure 1, and the relationship between relative humidity and deodorizing efficiency (Co-C)/CoX zo o was investigated.

The results are shown in Table 1.

(Deodorizing efficiency is (Co-C) / coxx o o)
I paid ¥. Co is the trimethylamine modification before standing, and C is the trimethylamine concentration after standing for 10 minutes.

) Example 2 Polyethylene te L/7 ta L with a single yarn denier of 6 denier
/-) An aqueous solution of cetyl phosphate potash (oil agent for the spinning process) and polyethylene glycol (hereinafter referred to as PEG, 10 molar adduct) was applied to the undrawn yarn at a deposition rate of 3.0 wt% of PEG based on the weight of the filaments. The tow was applied by dipping so that the tow had a total denier of 400,000 deniers by stretching, crimping, and heat setting. Then, just before cutting into the short fibers, 0.1ij1 is added to the fiber weight.
A 20% aqueous solution of deodorant was applied by spraying so that the adhesion rate was 20%. The deodorant is Freshy Shiraima FS
-, 500 (manufactured by Shiraimatsu Shinyaku ■) was used. The fibers after spraying were applied to a carding machine to create a web.

The web was covered with the same lining as in Example 1 to form a stuffed body, and the deodorizing efficiency of the stuffed body was measured under the same conditions as in Example 1. The measurement results are shown in Table 1.

Effects of the Invention As a result of the structure of the present invention, the deodorizing filler of the present invention differs from conventional deodorizing fillers using K such as activated carbon,
It does not lose its deodorizing properties under humid conditions; on the contrary, it exhibits a remarkable deodorizing effect under humid conditions, especially under high temperature and high pressure conditions, and it does not constantly lose its deodorizing effect throughout the four seasons. There is no.

Patent applicant Teijin Ltd.

Claims (4)

[Claims] (1) A deodorizing filling object comprising fibers coated with a deodorizing agent, characterized in that a water-soluble deodorant and a hydrophilic compound coexist. (2) The deodorant filler according to claim (1), wherein the fibers are coated with a hydrophilic compound. (3) The deodorizing filling object according to claim (1) or (2), wherein the water-soluble deodorant is an isolated product from a plant of the Camellia family. (4) l! The deodorizing filling material according to any one of claims (1) to (3), wherein the fibers are microporous fibers.