KR930000243B1 - Deodorant fiber - Google Patents

Abstract

The fiber is composed of first component of mixtures of fiber- forming polymers, and deodorant mixtures of ferrous salts, e.g. ferrous sulfate, and zinc compds. e.g. zinc oxide, zinc carbonate in the mixing ratio of 60:40 - 80:20, the content of which has first component 1-30 wt.% as a sheath component and second component of fiber-forming polymers as a core component in the composing ratio of 5:95 - 50:50 wt.%. At least some portion of first component exists continuously in a row or coresheath form in the fiber surfaces length direction. The resulting deodorant fiber features unlowered fiber strength, elongation and physical performnce while removing malodour efficiently.

Description

Deodorant Fiber

The present invention relates to a deodorizing fiber, and more particularly, to a deodorizing fiber prepared by incorporating a deodorizing substance capable of chemical deodorization into a fiber-forming polymer in a melt spinning process.

In recent years, as the awareness of the importance of a hygienic and healthy living environment is heightened, there is an increasing demand for the emergence of fibers having a hygienic function such as a deodorizing function.

In general, a method of removing odors includes: a sensory deodorizing method of removing odors by a stronger direction such as a fragrance for toilet, a chemical deodorizing method of removing odors by reacting odorous substances with chemicals and changing to another substance, odors Physical deodorization method of absorbing molecules of a substance into a porous material such as activated carbon to remove odors, and biological deodorization method of removing odors by decomposing odorous substances using enzymes produced by microorganisms.

Among these methods, a method of imparting a deodorizing function to fibers is a direct method of directly mixing a chemical deodorant material with a fiber-forming polymer in a spinning process during yarn production, and after immersing or coating the fiber in a yarn state or product, This allows an indirect method by addition holes to add chemical deodorant to the fiber.

However, the indirect method by post-processing is economical or the number of working processes, because subsidiary processes such as dipping, coating and drying processes have to be added, compared to the direct method of directly mixing chemical deodorant materials in the spinning process. In addition to the disadvantage, because the deodorant material is applied only to the surface of the yarn or the product, compared to the direct method, there is a problem that the touch is also lowered, and the durability of the deodorant effect, in particular, the washing resistance is poor.

Therefore, as an ideal method of imparting a deodorant function to the fiber, a chemical deodorant material that changes the odorous substance into another material by chemical reaction is mixed directly with the fiber-forming polymer in the melt spinning process during yarn production to form the deodorant fiber. It can be said to manufacture.

With this in mind, the present inventors have steadily studied the manufacture of deodorizing fibers capable of exhibiting deodorizing functions by mixing and spinning a deodorizing substance which can be chemically deodorized in a melt spinning process in a fiber-forming polymer. It has been found that the addition of a deodorant mixed in a certain ratio, exhibits a significantly higher deodorant function than when using each of these deodorant alone. Based on these findings, the present applicant has previously disclosed, in Korean Patent Application No. 19170, 1989, inorganic zinc compounds such as zinc oxide, zinc chloride, zinc phosphate, zinc sulfate, zinc carbonate, zinc acetate, zinc citrate, zinc fumarate. Melt spinning of fiber-forming polymers, such as polyethylene and polypropylene, by deodorizing substances obtained by mixing zinc compounds such as organic zinc salts and the like and ferrous sulfates such as ferrous sulfate with a weight ratio of 40:60 to 20:80 It has been proposed a deodorizing fiber obtained by spinning by mixing 0.1 to 30% by weight to these polymers in the step.

However, the deodorizing fiber obtained by the above method has a very good effect in terms of deodorizing function, but since the deodorizing material is mixed and melt-spun into the fiber-forming polymer as a whole, the deodorizing material is almost uniform throughout the deodorizing fiber. When these fibers are tensioned during the pre-processing such as stretching and burning these fibers, these deodorant substances act as defects and cause problems such as deterioration of the strength, elongation, and physical performance of the fibers. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a deodorizing fiber which can efficiently remove odors and does not deteriorate the physical performance such as the strength and elongation of the fiber. Is in.

In order to achieve the object as described above, the present invention is a deodorizing fiber obtained by adding a deodorant material consisting of a mixture of ferrous salt and zinc compound to the fiber-forming polymer, the deodorizing fibers are deodorizing fibers and fiber-forming polymer It is to provide a deodorizing fiber, characterized in that the first component of the mixture of materials is a sheath component and the core component includes only a fiber-forming polymer.

In the deodorizing fibers as described above, the ratio of the sheath component and the core component is preferably 5:95 to 50:50 by weight.

In the deodorizing fiber as described above, the first component is preferably arranged in parallel or super-core so that at least part of the first component is continuously present in the longitudinal direction.

The first component constituting the sheath component of the deodorant fiber according to the present invention is substantially the same as the component constituting the deodorant fiber as set forth in the 1989 Patent Application No. 19170 by the applicant.

Therefore, also in the present invention, any fiber-forming polymer capable of melt spinning can be used as the fiber-forming polymer, such as polyolefin-based polymers such as polyethylene and polypropylene, polyvinyl chloride, vinylon, polystyrene, polyamide, polyester and the like. Do.

On the other hand, the individual deodorant substances usable in the present invention are all known compounds, but in the present invention, these compounds are mixed and used at a specific ratio to increase the deodorizing function. These deodorants are preferably mixtures of zinc compounds and ferrous salts. As the zinc compound, various zinc compounds such as zinc oxide, zinc chloride, zinc phosphate, inorganic zinc compounds such as zinc sulfate and zinc carbonate, and organic zinc salts such as zinc acetate, zinc citrate and zinc fumarate can all be used. Especially preferred are zinc oxide and zinc carbonate.

Moreover, although various ferrous salts can be used as a ferrous salt, Ferrous sulfate is especially preferable.

It is well known to use ferrous salt as a deodorizing substance. However, when the ferrous salt is mixed with a fiber-forming polymer, the ferrous salt discolors due to high melt spinning temperature of the fiber-forming polymer. The problem arises that the fiber-forming polymer is colored in brown to significantly lower the merchandise value of the deodorant fibers and the fiber-forms made from the deodorant fibers.

In the present invention, in order to solve such a problem, the first iron salt was used in combination with a zinc compound, so that even if the first iron salt is included in the fiber-forming polymer to melt spinning, the first iron salt is brown according to the high spinning temperature. There is little discoloration to, and combined with the deodorizing effect of the zinc compound, exhibits a deodorizing effect more than the combined inherent deodorizing effect of each compound.

On the other hand, as mentioned above, it is preferable that the mixing ratio of the deodorant substance which consists of a ferrous salt and a zinc compound shall be 60: 40-80: 20 by weight ratio.

Further, in the deodorizing fiber of the present invention, the sheath component of the first component is such that 99 to 70% by weight of the fiber-forming polymer is 1 to 30% by weight of the deodorizing material, so that an appropriate combination ratio during polymerization of the fiber-forming polymer. It is also possible to prepare the same as the conventional composite fiber manufacturing method by mixing the deodorant material or by mixing the deodorant material of the appropriate combination ratio into the fiber-forming polymer in the melt release step.

If the amount of deodorant added in the sheath component is less than 1% by weight, the deodorizing effect is too weak. If the amount is more than 30% by weight, the deodorizing function is excellent, but the presence of these deodorant particles results in the deodorant fiber. The problem is that the physical performance of the yarn, such as the strength, elongation of the yarn decreases.

In addition to the deodorizing substance which is a mixture of the ferrous salt and the zinc compound, the deodorant fiber of the present invention may optionally contain various conventionally known additives such as colorants, fillers, plasticizers, stabilizers, ultraviolet absorbers, and the like. .

A feature of the present invention is that the deodorizing material composed of a mixture of ferrous salt and zinc compound as described above is mixed with the fiber forming polymer in the melt spinning step to produce the deodorizing fiber, The above-mentioned deodorizing material is mixed only with the fiber-forming polymer which will form the sheath portion of the deodorizing fiber (first component), but not with the whole. By complex spinning these polymers without mixing the substances (core component), the first component containing the deodorant substance is arranged in parallel or super core so that at least a part of the surface of the fiber is continuously present in the longitudinal direction. In the manufacture of deodorant fibers.

In the deodorizing fiber proposed by the applicant, in the melt spinning step, since the so-called substance is uniformly mixed in the whole polymer without distinction between the sheath and the core component, the deodorizing fiber is deodorized by the zinc compound and ferrous salt particles, which are deodorizing substances. It exists throughout the fiber and acts as a drawback by the tension at the time of processing, such as extending | stretching and combustibles, and deteriorates the physical performance of the yarns, such as strength and elongation, and a problem arises in this invention, A first component made of a fiber-forming polymer containing a deodorant material is used only as a sheath component, and a deodorant fiber is prepared using a second component made of a fiber-forming polymer alone, which does not include a deodorant material, as a core component. Therefore, the problem of lowering the physical performance of the yarn due to the addition of the deodorant substance is composed only of the fiber-forming polymer. At the same time that the core component can be compensated enough, deodorant effect desired by the deodorizing material contained in the sheet's ingredients also it can be sufficiently achieved.

On the other hand, in the deodorizing fiber of this invention, it is preferable that the ratio of the said sheath component and a core component is 5: 95-50: 50 by weight ratio. If the ratio of the sheath component is less than 5% by weight, the deodorizing effect of the deodorant fiber is insufficient. If the ratio of the sheath component is more than 50% by weight, the share of the deodorizing material in the deodorant fiber portion by the deodorant substance particles is increased. Too high, there is a problem that the physical properties of the yarn, such as strength and elongation is lowered.

The deodorizing fibers of the present invention can be used alone or in combination with other existing fibers to be used in the manufacture of towels, kitchenware, bedding, socks, sportswear, shoes, duvets, filters, shoes and the like.

Next, a preferred embodiment of the present invention is described. However, the present invention is not limited to these examples.

The measurement method of the deodorizing function shown in the following Examples and Comparative Examples is as follows, the side of the strength, elongation, etc. used a general method by the use of Instron.

[How to measure]

Deodorizing ability evaluation: After a predetermined time, the deodorizing ability was evaluated by measuring the residual amount of odorous substances (in ppm).

(A) Ammonia: 10 ml of 28% ammonia water was completely gasified in a Erlenmeyer flask with an internal capacity of 300 lm, and 1.0 g of the sample was added to the vessel and stored at 25 ° C. After a predetermined time, a north-type gas detector was used. The residual ammonia concentration in the flask was measured.

(B) Trimethylamine: Take 10 ml of 0.8% aqueous trimethylamine solution into a 300 ml Erlenmeyer flask and completely gasify it. Then, 1.0 g of the sample is added to the container and stored at 25 ° C. The residual concentration of trimeamine in the flask was measured.

(C) Hydrogen sulfide: 1 ml of 800 ml sodium sulfide solution and 0.1 ml of 1 N sulfuric acid were added to a conical flask with an internal capacity of 300 ml to generate hydrogen sulfide, and 1.0 g of sample was added and stored at 25 ° C. After a predetermined time, A hydrogen sulfide concentration in the flask was measured using a North Asthma gas detector.

Example 1

The deodorant obtained by mixing ferrous sulfate and zinc oxide at 70% by weight: 30% by weight was melt mixed with polyethylene terephthalate at 270 DEG C to prepare a masterbatch containing 70% by weight of deodorant. The master batch thus prepared is mixed with polyethylene terephthalate so that the content of the deodorant is 15% by weight, and the polyethylene terephthalate is used as the first component of the sheath component using a decompression device manufactured by a composite company. It melt-spun at 290 degreeC using the prepared 2nd component as a core component. At this time, the ratio of the sheath component and the core component was adjusted to 20: 80% by weight, and the shape of the fiber cross section was super-core. Fineness was prepared in 225D strand number 24F.

The unstretched yarn was drawn at 3 times the draw ratio, the heat roller temperature at 85 ° C., and the hot plate temperature at 135 ° C., and the combustion conditions were set at 150,000 rpm, the twist number 2,000 tpm, and the temperature at 162 ° C. After the production of the false twisted yarn of 75D / 24F, the strength, elongation and deodorizing ability were measured and the results are shown in [Table 1].

Comparative Example 1

A filament was obtained by melt spinning at 290 ° C., except that a deodorizing material and polyethylene terephthalate were used in the same manner as the sheath component of Example 1, except that a detention apparatus for general yarn was used. At this time, the cross-sectional shape was type 0, and the fineness was made of 225D strands 24F. This undrawn yarn was treated in the same manner as in Example 1 described above, and after stretching and burning, the strength, elongation and deodorizing ability were measured. The results are shown in [Table 1].

Example 2

Except for changing the ratio of the sheath component and the core component to 50: 50% by weight, the strength, elongation and deodorizing ability of the false twisted yarn prepared in the same manner as in Example 1 was measured and the results are shown in [Table 1]. ].

Comparative Example 2

Except for changing the ratio of the sheath component and the core component to 55% by weight: 45% by weight, the strength, elongation and deodorizing ability of the false twisted yarn prepared in the same manner as in Example 1 were measured and the result was measured. Table 1].

Example 3

Except for changing the mixing ratio of ferrous sulfate and zinc oxide to 80% by weight: 20% by weight was measured the strength, elongation and deodorizing ability of the combustible yarn prepared in the same manner as in Example 1 as a result Is shown in [Table 1].

Comparative Example 3

Except for changing the mixing ratio of ferrous sulfate and zinc oxide to 90% by weight: 10% by weight was measured the strength, elongation and deodorizing ability of the combustible yarn prepared in the same manner as in Example 1 as a result Is shown in [Table 1].

[Comparative Example 4]

Except for changing the amount of deodorant added to the sheath component to 40% by weight, the strength, elongation and deodorizing ability of the false twisted yarn prepared in the same manner as in Example 1 was measured and the results are summarized in Table 1 below. ].

[Comparative Example 5]

Except for the use of polyethylene terephthalate without using a deodorant, the strength, elongation and deodorizing ability of the false twisted yarn prepared in the same manner as in Comparative Example 1 was measured and the results are shown in [Table 1].

TABLE 1

※ N.D: Indicates a state that is not detected.

Claims (6)

In the deodorizing fiber obtained by adding a deodorizing substance composed of a mixture of ferrous salt and a zinc compound to the fiber forming polymer, the deodorizing fiber comprises a first component comprising a mixture of the fiber forming polymer and the deodorizing substance as a sheath component. And the core component contains only a fiber-forming polymer. The deodorizing fiber according to claim 1, wherein the ratio of the sheath component and the core component is 5: 95-50: 50 by weight ratio. The deodorizing fiber according to claim 1 or 2, wherein the first component is arranged in parallel or super-core so that at least a part of the first component is continuously present in the longitudinal direction. The deodorizing fiber according to claim 1 or 2, wherein the content of the deodorizing component in the sheath component is 1 to 30% by weight. The deodorizing fiber according to claim 1, wherein the ferrous salt is ferrous sulfate, and the zinc compound is zinc oxide or zinc carbonate. The deodorizing fiber according to claim 1, 2 or 5, wherein the mixing ratio of the ferrous salt and the zinc compound is 60:40 to 80:20 by weight ratio.