JPH10168652A - Crimped tobacco deodorant polyolefin fiber, method for producing the same, and tobacco deodorant carpet using the crimped fiber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tobacco deodorant polyolefin wound which is safe, does not deteriorate in deodorant performance due to use, washing, etc., and has a fiber-opening property to enhance deodorant effect and bulkiness suitable as a carpet material. Provided is a compressed fiber, and a tobacco deodorant carpet using the fiber. SOLUTION: The polyolefin blended with 1 to 10% by weight of a deodorant composed of a mixture of a hydrazine derivative having a solubility in water of 5 g / l or less at 25 ° C. and an inorganic substance having adsorbability is obtained. A crimped tobacco deodorant polyolefin fiber produced by drawing and hot air processing, and a tobacco deodorant carpet using the fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a tobacco deodorant polyolefin crimped fiber for deodorizing tobacco odor, a method for producing the same, and a tobacco deodorant carpet using the tobacco deodorant polyolefin crimped fiber.

[0002]

2. Description of the Related Art In recent years, with the improvement of living environment, there has been an interest in deodorizing odors generated from daily life and maintaining a comfortable living environment. Generally, as a bad odor component,
Examples thereof include sulfur compounds such as methyl mercaptan, hydrogen sulfide, and methyl sulfide; nitrogen compounds such as ammonia, methylamine and ethylamine; lower fatty acids such as propionic acid and butyric acid; formaldehyde and acetaldehyde.

[0003] These malodorous components are mixed in various ways,
Even when limited to daily life, it is present as a wide variety of malodors such as odors generated from spoiled foods, clothes and bedding, or tobacco odors generated by smoking.

[0004] In order to deodorize these various malodors, it is necessary to use a deodorant which is effective for a wider variety of malodor components. 5-98564, JP-A-5-156510
JP, JP-A-6-200415, JP-A-7-1
97309 and the like. However, although these deodorized fibers made of zinc oxide have deodorizing performance against sulfur compounds such as hydrogen sulfide and methyl mercaptan, they do not have deodorizing performance against tobacco odor (mainly acetaldehyde), and the base polymer used is polyester. It is.

Further, deodorant fibers into which zeolite has been kneaded are disclosed in JP-A-4-50368 and JP-A-5-230759.
These are deodorizing fibers utilizing the antibacterial performance of zeolite containing at least one metal ion selected from silver, copper, zinc and the like. Further, a deodorant fiber into which an inorganic deodorant has been kneaded is disclosed in
No. 52274, these are deodorizing fibers containing a physical deodorant such as silica gel or a chemical deodorant such as iron sulfate, and have a deodorizing performance against basic malodor. Although they have deodorizing performance, none of them have deodorizing performance against tobacco odor (acetaldehyde), and the base polymer used is polyester.

On the other hand, as for polyolefin fibers, a fiber obtained by impregnating a polyolefin fiber in an aqueous solution in which a deodorant is dissolved is disclosed in JP-A-4-50320, and a heat-adhesive conjugate fiber having a deodorant function is used. JP-A-63-1967
No. 18, each of them is disclosed as a bulky crimped fiber.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by incorporating a deodorant, which is particularly effective for tobacco odor, into a polyolefin as a base polymer instead of post-processing. It is an object of the present invention to provide a crimped tobacco deodorant polyolefin fiber which is safe, does not decrease the deodorant performance due to use, washing, etc., and has a fiber opening property that enhances the deodorant effect and a bulkiness suitable as a carpet material. Another object of the present invention is to provide a tobacco deodorant carpet using the tobacco deodorant polyolefin crimped fiber.

[0008]

According to the present invention, at least one selected from the group consisting of hydrazine derivatives having a solubility in water of 5 g / liter or less at 25 ° C. and at least one selected from the group consisting of inorganic substances having adsorptivity. A crimped tobacco deodorant polyolefin fiber, comprising a polyolefin in which a deodorant composed of a mixture with one kind is blended in an amount of 1 to 10% by weight;

And a solubility in water of 5 g / 25 ° C.
A deodorant, which is a mixture of at least one selected from the group of hydrazine derivatives of at most 1 liter and at least one selected from the group of inorganic substances having adsorptivity, from 1 to 10
After the melt-spinning of the polyolefin compounded by weight, stretching is performed at a stretching ratio of 2 to 7 times, followed by hot air processing at a hot air temperature of 110 to 150 ° C. and a relaxation rate of 20% or more. Method for producing crimped tobacco deodorant polyolefin fibers,

[0010] Further, the present invention is characterized by comprising the above-mentioned crimped tobacco deodorizable polyolefin fiber and containing 0.3% by weight or more of the deodorant in the crimped polyolefin fiber with respect to the whole carpet. And tobacco deodorant carpets.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Polyolefin as a base polymer of crimped tobacco deodorant polyolefin fiber of the present invention includes polyethylene and polypropylene.
It is preferably polypropylene, particularly preferably a polypropylene having a melt flow rate of 10 to 50 g / 10 minutes (measured at 230 ° C.). The base polymer is mainly composed of polyolefin, and is preferably polyamide, polyester, or the like. May be included.

The deodorant compounded in the polyolefin is at least one selected from the group of hydrazine derivatives having a solubility in water of 5 g / liter or less at 25 ° C. and at least one selected from the group of inorganic substances having adsorptivity. Consists of a mixture with one.

As the hydrazine derivative, hydrazide, which is a dehydration condensation product of hydrazine and carboxylic acid, is used. Specifically, decanoic acid hydrazide, dodecanoic acid (lauric acid) hydrazide, tetradecanoic acid (myristic acid) hydrazide, decane Long-chain aliphatic mono- or dicarboxylic acid hydrazide such as diacid dihydrazide, dodecane diacid dihydrazide, tetradecane diacid dihydrazide, aromatic monohydric dihydrazide such as phthalic acid dihydrazide, terephthalic acid dihydrazide, and the like. And especially preferred is dodecane diacid dihydrazide. These hydrazine derivatives may be used alone or as a mixture. Examples of the inorganic substance having an adsorptivity include silicon oxide, zinc oxide, and alumina, and a composite of silicon oxide, zinc oxide, and alumina is particularly preferable.

The mixing ratio of the hydrazine derivative and the adsorptive inorganic substance compound is preferably 1: 4 to 4: 1 by weight, and the hydrazine derivative or the adsorptive inorganic substance compound has an average particle diameter of 20 μm or less. Is preferred.

The deodorant is added to the polyolefin in an amount of 1 to 10
% By weight. If the amount of the deodorant is less than 1% by weight, the deodorizing effect against tobacco odor is insufficient, and if it exceeds 10% by weight, it is difficult to obtain the fiber itself due to yarn breakage during fiber formation by melt spinning. .

[0016] The crimped tobacco deodorant polyolefin fiber of the present invention may be prepared by uniformly mixing a deodorant with the polyolefin of the base polymer having a single structure of the fiber, or by changing the fiber structure to a sheath core. The structure may be such that the core portion is a polyolefin or a polyamide, polyester or other polyolefin, and the sheath polyolefin may be mixed with a deodorant. When the fiber has a single structure, the amount of the deodorant is preferably 1 to 5% by weight, and when the fiber has a sheath-core structure, the sheath / core ratio is preferably 1/3 to 3%.
/ 1, it is possible to mix a high amount of a deodorant in the sheath. Also, even if the cross-sectional shape of the fiber is a circular cross-section,
Further, it may have a modified cross section such as a Y-shape or a triangle.

The crimped tobacco deodorant polyolefin fiber of the present invention has a bulkiness of at least 6 cm ³ / g, a deodorization rate for ammonia and acetaldehyde of at least 60%, and an excellent bulkiness with good opening properties. In addition, it has excellent deodorant performance against tobacco odor.

The tobacco deodorant polyolefin crimped fiber of the present invention is produced by the production method described below. That is, the tobacco deodorant polyolefin crimped fiber of the present invention is selected from at least one selected from the group of hydrazine derivatives having a water solubility of 5 g / liter or less at 25 ° C and the group of inorganic substances having adsorptivity. After blending a deodorant that is a mixture with at least one type with a polyolefin of 1 to 10% by weight and melt-spinning the polyolefin blended with the deodorant, stretching is performed at a draw ratio of 2 to 7 times,
Subsequently, it is manufactured by hot air processing under conditions of a hot air temperature of 110 to 150 ° C. and a relaxation rate of 20% or more.

As the polyolefin, polypropylene, particularly polypropylene having a melt flow rate of 10 to 50 g / 10 minutes (measured at 230 ° C.) is preferably used. If the melt flow rate is less than 10 g / 10 minutes, the melt spinning temperature is lowered. It must be set at a high temperature.At a high temperature, the deodorant deteriorates and satisfactory deodorizing performance cannot be obtained.In addition, the pressure in the spinneret rapidly increases, shortening the life of the spinneret and improving the spinning stability. If the melt flow rate exceeds 50 g / 10 minutes, cross section unevenness occurs and the yarn production stability deteriorates.

The compounding of the deodorant to the polyolefin is carried out in a step prior to the melt spinning of the polyolefin. The mixing method is not particularly limited, and a high concentration of a deodorant is added to the polyolefin to form a master batch. The deodorant may be diluted to a predetermined amount with a polyolefin to which no deodorant is added. Further, additives such as a heat stabilizer, a weather resistance stabilizer, a lubricant, a dye / pigment, an antistatic agent, and a flame retardant may be appropriately added to the polyolefin.

For melt spinning of a polyolefin containing a deodorant, any known melt spinning method is adopted. When the fiber is made into a single structure, a normal spinning method is used, and when the fiber is made into a sheath-core structure, the fiber is made into a sheath-core structure. In this case, a sheath-core composite spinning method or the like is used. When the cross-sectional shape of the fiber is a circular cross-section or a modified cross-section, a melt spinning method using a circular nozzle and a modified nozzle is adopted, respectively.

The undrawn yarn after melt spinning has a draw ratio of 2 to 7
When the draw ratio is less than 2 times, the fiber strength decreases, and when the draw ratio exceeds 7 times, the yarn production stability decreases.

The hot air processing performed subsequent to the stretching is a crimping processing in which a crimp is applied by hot air. The hot air processing includes a hot air introduction chamber having a feed nozzle for jetting hot air as shown in FIG. In addition, a crimp applying apparatus is used in which a crimp chamber having a cylindrical crimp nozzle having a radial slit and a crimp fixing chamber are sequentially arranged on the entire cylinder for exhausting hot air. The slit in the crimp nozzle may be a hole. In FIG. 1, a is a drawn yarn, 1 is a yarn guide tube, 2 is a hot air introduction chamber, 3 is a hot air feed nozzle, 4 is a crimp chamber, 5 is a crimp nozzle, 6 is a crimp fixing chamber, and 7 is hot air. The inlet, 8 is a hot air exhaust port, and b is a crimped yarn.

In FIG. 1, the drawn yarn a is sent from a hot air feed nozzle 3 on the side wall of the yarn guide tube 1 in a hot air introduction chamber 2 near the yarn inlet in an oblique direction substantially the same as the running direction of the yarn. Hot air is injected at a hot air pressure of 3 to 5 kg / cm ² and sent to the crimping chamber 4 in a heated state. Crimp is given by the action of the exhaust pressure of hot air and the vortex flow by the cylindrical crimping nozzle 5 having a slit 5a on the side wall of the cylindrical body of the running path, which has a slit 5a for exhausting only the hot air at right angles and radially throughout the cylindrical body. The yarn is gradually cooled in the heated crimp fixing chamber 6 to fix the crimped form, thereby forming a crimped yarn b.

The hot air temperature in hot air processing is 1
The temperature is in the range of 10 to 150 ° C., and in this temperature range, a temperature that can soften the yarn and does not lead to melting is appropriately selected according to the polyolefin used. The relaxation rate in the hot air processing is set to 20% or more. By this hot air processing, a crimped tobacco deodorant polyolefin fiber having good crimpability and bulkiness is obtained.

The crimped tobacco deodorant polyolefin fiber of the present invention has excellent deodorizing performance against malodors, especially tobacco odor, and also has good crimpability and bulkiness.
Used as a suitable material for carpet, the tobacco deodorant polyolefin crimped fiber of the present invention is constituted alone or in combination with other fibers, and the deodorant in the fiber is 0.3 to the entire carpet. Carpets containing more than 10% by weight exhibit excellent deodorant properties against tobacco odor.

[0027]

The present invention will be described below in more detail with reference to examples. In the examples, evaluation of deodorant performance and bulkiness was based on the following method.

<Evaluation of deodorant performance> 5 g of the knitted fabric of the sample fiber was put into a polypropylene container containing a malodorous component having the following predetermined initial concentration, sealed, allowed to stand at room temperature for the following predetermined time, and then detected. , The residual odor gas concentration in this container was measured, and the deodorizing rate was determined by the following equation. Deodorization rate (%) = (Remaining concentration of odorous gas / Initial concentration of odorous gas) × 100 Odorous gas Initial concentration of odorous gas Leaving time Ammonia 200 ppm 20 minutes Acetaldehyde 80 ppm 240 minutes The deodorization rate satisfactory in performance is 60% That is all.

<Evaluation of bulkiness> Samples are bundled to form a lump-shaped sample of about 120,000 denier. This litter sample is placed on a measuring table, and an initial load A (20 g) is placed thereon.
After one minute, load B (200 g) is further placed on initial load A. After one minute, the height (Hcm) of the sample is read. The sample protruding from the sample stage is cut off, and the weight of the remaining sample (X
g) was measured, and the bulkiness was determined by the following equation. Bulkiness (cm ³ / g) = 4H / X

Example 1 As a deodorant, a mixture of dodecane diacid dihydrazide (solubility: 1 g / liter or less) / a zinc oxide / silicon oxide / alumina composite (average particle size: 10 μm) in a mixing ratio of 1: 2 was used. A polymer obtained by blending 30% by weight of a deodorant with polypropylene having a melt flow rate (hereinafter referred to as MFR) of 30 g / 10 minutes (measured at 230 ° C.) is used. It was diluted to a concentration of 0.5% by weight.
The obtained diluted polymer is melted using an extruder set at 200 ° C. in the first zone and 220 ° C. in the second zone, discharged by a Y-shaped spinning nozzle, and wound up at a take-up speed of 350 m / min. An undrawn yarn was obtained.

This undrawn yarn is drawn at a drawing temperature of 80 ° C. and a draw ratio of 3.22 times, and subsequently hot-air processed at a hot air temperature of 120 ° C. and a relaxation rate of 30% by a crimping device as shown in FIG. As a result, a crimped yarn having a Y-shaped cross section of 1000 denier / 60 filaments was obtained with good spinning stability. Table 1 shows the physical properties, deodorizing performance, and bulkiness of the obtained crimped yarn. FIG. 3 shows a photograph of a fiber cross section of the obtained crimped yarn.

Example 2 MFR 30 g / 10 min (23
A polymer obtained by mixing 30% by weight of the same deodorant used in Example 1 with polypropylene (measured at 0 ° C.) in an MFR of 30 g
/ 10 minutes (measured at 230 ° C.) with polypropylene so that the deodorant became 3% by weight. Except for using the obtained diluted polymer, a crimped yarn of 1000 denier / 60 filaments was obtained in the same manner as in Example 1. Table 1 shows the physical properties of the obtained crimped yarn. In addition, for this crimped yarn, M
After spinning in the same manner as in Example 1 using a deodorant-free polypropylene having an FR of 30 g / 10 minutes (measured at 230 ° C.),
Using a doubled amount of the crimped yarn obtained by drawing and hot air processing, the mixture was air-entangled to obtain a mixed yarn. The content of the deodorant in this mixed yarn was 1% by weight, and the deodorizing performance and bulkiness of the mixed yarn are shown in Table 1.

Example 3 MFR 30 g / 10 min (23
A polymer prepared by mixing 30% by weight of the same deodorant as used in Example 1 with polypropylene (measured at 0 ° C.) in MFR 30
g / 10 minutes (measured at 230 ° C.) with polypropylene to dilute the deodorant to 6% by weight to obtain a sheath polymer.
Except for using a deodorant-free polypropylene having a FR of 30 g / 10 min (measured at 230 ° C.) as a core polymer and using a sheath-core composite spinning nozzle having a Y-shaped hole as the spinning nozzle,
Under the same conditions as in Example 1, a sheath-core composite crimped yarn having a Y-shaped cross section of 1000 denier / 60 filaments was obtained with good yarn production stability.

Table 1 shows the physical properties of the obtained crimped sheath-core composite yarn. In addition, MFR30 is applied to this sheath-core composite crimped yarn.
After spinning in the same manner as in Example 1 using polypropylene having no deodorant of g / 10 minutes (measured at 230 ° C.), drawing and hot air processing are used, and air entanglement is performed using twice the amount of crimped yarn. This was processed to obtain a mixed yarn. The content of the deodorant in this mixed yarn was 1% by weight, and the deodorizing performance and bulkiness of the mixed yarn are shown in Table 1.

Example 4 The same procedure as in Example 3 was carried out except that the spinning nozzle was replaced with a sheath-core composite spinning nozzle having a triangular hole shape.
A sheath-core composite crimped yarn having a triangular cross-section of the filament was obtained with good spinning stability. Table 1 shows the physical properties of the obtained sheath-core composite crimped yarn.
FIG. 4 shows a photograph of the fiber cross section. Also, the MFR is 30 g / 10 min (230
(Measured in ° C.) and spinning in the same manner as in Example 1 using a deodorant-free polypropylene, air-entangled using twice the amount of crimped yarn obtained by stretching and hot air processing to obtain a mixed yarn. Was. The content of the deodorant in this mixed yarn was 1% by weight, and the deodorizing performance and bulkiness of the mixed yarn are shown in Table 1.

Example 5 Example 3 was repeated except that the spinning nozzle was replaced with a sheath-core composite spinning nozzle having a circular hole shape.
Under the same conditions as in Example 3, a sheath-core composite crimped yarn having a circular cross section of 1000 denier / 60 filaments was obtained with good yarn production stability. Table 1 shows the physical properties of the obtained sheath-core composite crimped yarn, and FIG. 5 shows a photograph of the fiber cross section. In addition, the sheath-core composite crimped yarn has an MFR of 30 g / 10 min (measured at 230 ° C.).
After spinning in the same manner as in Example 1 using polypropylene having no deodorant, the resulting mixture was stretched and subjected to hot air processing to carry out air entanglement using twice the amount of a crimped yarn to obtain a mixed yarn.
The content of the deodorant in this mixed yarn was 1% by weight, and the deodorizing performance and bulkiness of the mixed yarn are shown in Table 1.

(Example 6) MFR 30 g / 10 min (23
A polymer obtained by mixing 30% by weight of the same deodorant used in Example 1 with polypropylene (measured at 0 ° C.) in an MFR of 30 g
/ 10 minutes (measured at 230 ° C.) with polypropylene so that the deodorant became 3% by weight. 0.5% by weight of a pigment is added to the obtained diluted polymer, and the extruder A is set to 185 ° C in the first zone, 190 ° C in the second zone, 195 ° C in the third zone, and 200 ° C in the fourth to seventh zones. , MFR 30g /
0.5% by weight of pigment was added to deodorant-free polypropylene for 10 minutes (measured at 230 ° C) and melted in extruders B and C set to the same conditions as in extruder A, and the pore shape was triangular. At a take-up speed of 533 m / min to obtain an undrawn yarn.

This undrawn yarn is drawn at a drawing temperature of 100 ° C. and a draw ratio of 2.70 times, and subsequently subjected to hot air processing at a hot air temperature of 125 ° C. and a relaxation rate of 20% using a crimping device as shown in FIG. Then, the mixture was further air-entangled to obtain a crimped yarn having a triangular cross section of 2400 denier / 180 filaments with good spinning stability. The content of the deodorant in this crimped yarn was 1% by weight, and the yarn physical properties, deodorant performance and bulkiness of the obtained crimped yarn are shown in Table 1.

Comparative Example 1 In Example 1, the diluted polymer was replaced with a diluted polymer obtained by diluting the diluted polymer with polypropylene having an MFR of 30 g / 10 minutes (measured at 230 ° C.) so that the deodorant became 0.5% by weight. A crimped yarn having a Y-shaped cross section of 1000 denier / 60 filaments was obtained in the same manner as in Example 1 except for the above. Table 1 shows the physical properties, deodorizing performance, and bulkiness of the obtained crimped yarn. The obtained crimped yarn had good bulkiness and poor deodorizing performance.

Comparative Example 2 Spinning was carried out in the same manner as in Example 1 except that the diluted polymer was diluted with polypropylene having an MFR of 30 g / 10 minutes (measured at 230 ° C.) so that the deodorant became 6% by weight. An attempt was made to obtain a crimped yarn in the same manner as in Example 1 except that a spinning nozzle having a circular hole was used as the nozzle. However, the yarn production stability was poor, and a crimped yarn could not be obtained.

Comparative Example 3 In Example 3, the sheath polymer was changed to a diluted polymer obtained by diluting the deodorant with polypropylene having an MFR of 30 g / 10 min (measured at 230 ° C.) so that the deodorant became 12% by weight. Except for the above, a crimped yarn was obtained in the same manner as in Example 3, but the yarn production stability was poor and a crimped yarn could not be obtained.

Comparative Example 4 In Example 1, MFR3
After spinning in the same manner as in Example 1 except that polypropylene of 0 g / 10 minutes (measured at 230 ° C.) and a Y-shaped spinning nozzle were used as the spinning nozzle, the film was stretched and hot air processed. A drawn yarn having a Y-shaped cross section was obtained. Table 1 shows the deodorizing performance and bulkiness of the drawn yarn.

Comparative Example 5 In Example 1, the MFR3
After spinning in the same manner as in Example 1 except that polypropylene of 0 g / 10 min (measured at 230 ° C.) and a spinning nozzle having a triangular hole were used as the spinning nozzle, stretching was performed without hot air processing. Thus, a drawn yarn having a triangular cross section was obtained. Table 1 shows the deodorizing performance and bulkiness of the drawn yarn.

(Comparative Example 6) In Example 1, the MFR3
After spinning in the same manner as in Example 1 except that a spinning nozzle having a circular hole shape was used as the spinning nozzle, polypropylene was used without spinning and deodorant at 0 g / 10 minutes (measured at 230 ° C.). A drawn yarn having a circular cross section was obtained without hot air processing. Table 1 shows the deodorizing performance and bulkiness of the drawn yarn.

[0045]

[Table 1]

[0046]

The crimped tobacco deodorant polyolefin fiber of the present invention has excellent deodorizing performance, especially against tobacco odor, and is safe by using the deodorizing property by kneading, and is deodorized by use and washing. It has no odor performance, and has openability and bulkiness that enhance the deodorizing effect, and is suitable as a carpet material due to its bulkiness. In addition, a carpet using the tobacco deodorant polyolefin crimped fiber of the present invention is also useful as a tobacco deodorant carpet in homes, offices, vehicles, and the like.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an example of a crimping apparatus in hot air processing used for obtaining a tobacco deodorant polyolefin crimped fiber of the present invention.

FIG. 2 is an enlarged cross-sectional view of a crimp nozzle in the crimp applying device of FIG.

FIG. 3 is a photograph (200 magnification) of a fiber cross section of the crimped yarn obtained in Example 1.

FIG. 4 is a photograph (200 magnification) of a fiber cross section of the crimped yarn obtained in Example 4.

FIG. 5 is a photograph (200 magnification) of a fiber cross section of the crimped yarn obtained in Example 5.

[Explanation of symbols]

 a drawn yarn 1 yarn guide tube 2 hot air introduction chamber 3 hot air feed nozzle 4 crimp chamber 5 crimp nozzle 5a slit 6 crimp fixing room 7 hot air inlet 8 hot air exhaust port b crimp yarn

──────────────────────────────────────────────────続 き Continuation of front page (51) Int.Cl. ⁶ Identification symbol FI C08L 101/12 C08L 101/12 D02G 1/00 D02G 1/00 Z D02J 1/22 D02J 1/22 J (72) Inventor Sakakura Hideo 4-2-1, Ushikawa-dori, Toyohashi-shi, Aichi Prefecture Inside the Toyohashi Plant (72) Inventor Yukiko Sayama 2-1-1, Ushikawa-dori, Toyohashi-shi, Aichi Prefecture Inside the Toyohashi Plant (72 Inventor Tamiji Yamagata 1-3-21 Masago, Ibaraki-shi, Osaka

Claims (9)

[Claims] 1. A deodorant comprising a mixture of at least one selected from the group of hydrazine derivatives having a solubility in water of 5 g / liter or less at 25 ° C. and at least one selected from the group of inorganic substances having adsorptivity. A tobacco deodorant polyolefin crimped fiber, characterized in that the agent comprises a polyolefin blended in an amount of 1 to 10% by weight. 2. The crimped tobacco deodorant polyolefin fiber according to claim 1, wherein the polyolefin is a polypropylene having a melt flow rate of 10 to 50 g / 10 minutes (measured at 230 ° C.). 3. The bulkiness is 6 cm ³ / g or more, and the deodorizing rate for ammonia and acetaldehyde is 60% each.
The crimped tobacco deodorant polyolefin fiber according to claim 1 or 2, which is the above. 4. The tobacco deodorant polyolefin crimp according to claim 1, wherein the hydrazine derivative is a long-chain aliphatic mono- or dicarboxylic acid hydrazide or an aromatic mono- or dicarboxylic acid hydrazide. fiber. 5. The tobacco deodorant polyolefin according to claim 1, wherein the mixture ratio of the hydrazine derivative and the inorganic substance having adsorptivity is 1: 4 to 4: 1. Crimped fiber. 6. The hydrazine derivative or the inorganic substance having adsorptivity is a fine powder having an average particle size of 20 μm or less.
The tobacco deodorant polyolefin crimped fiber according to the above. 7. A deodorant which is a mixture of at least one selected from the group of hydrazine derivatives having a solubility in water of 5 g / liter or less at 25 ° C. and at least one selected from the group of inorganic substances having adsorptivity. After melt-spinning a polyolefin containing 1 to 10% by weight of an agent, stretching is performed at a stretching ratio of 2 to 7 times, and then hot air temperature of 11
A method for producing a tobacco deodorant polyolefin crimped fiber, characterized in that hot air processing is performed at 0 to 150 ° C. and a relaxation rate of 20% or more. 8. The method for producing crimped tobacco deodorant polyolefin fiber according to claim 7, wherein polypropylene having a melt flow rate of 10 to 50 g / 10 minutes (measured at 230 ° C.) is used as the polyolefin. 9. The crimped tobacco deodorant polyolefin fiber according to claim 1, 2, 3, 4, 5, or 6, and the crimped polyolefin fiber. The deodorant in it is 0. 0 to the whole carpet.
A tobacco deodorant carpet characterized by containing at least 3% by weight.