JP2944236B2 - Antibacterial antifungal deodorant nonwoven fabric with hydrophilicity - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a durable antibacterial property,
It has anti-mold, deodorant and permanent hydrophilic properties.
Medical hygiene materials such as hospital bed sheets, bandages, wrapping materials and diapers, living-related materials such as towels and table cloths, and short-term materials that can be suitably used as bedding materials such as sheets and futon covers. The present invention relates to a fibrous nonwoven fabric.

[0002]

2. Description of the Related Art In recent years, there has been proposed a variety of antibacterial and deodorant textile products because of the necessity of creating a healthy and comfortable living environment. For example, Japanese Patent Publication No. 63-54013,
JP-A-63-175117, JP-A-1-2504
No. 13 proposes to impart antibacterial properties by ionic dissociation of antibacterial metals (Ag, Cu, Zn) supported on so-called zeolite. In order to impart antibacterial properties, a biguanite derivative and an organosilicon type 4
A method of applying various antibacterial agents such as quaternary ammonium salts to fibers or fabrics has also been proposed.

[0003] However, the fibers and fabrics obtained by these methods may not be used depending on the intended use.
Especially for newborns and other people with sensitive skin,
There are hygiene problems.

[0004] In recent years, attempts have been made to apply chitosan or chitosan derivatives, which have no toxicity to the human body and are extremely safe, to antibacterial products. Products using the antibacterial properties of chitosan include, for example,
JP-A-83875 and JP-A-63-102623 propose a film or fishing net provided with chitosan.

[0005] The safety of chitosan is supported by the record that chitin containing chitosan has been edible as an agricultural product such as crab, shrimp or mushroom. Recently, it has been added to diet foods,
It is also listed in the list of natural food additives compiled by the Ministry of Health and Welfare. It is known that D-glucosamine, which is a constituent unit of chitosan, exists as a constituent substance having a physiological function in the body and has a metabolic function. Furthermore, no acute toxicity or mutagenicity was observed in a search for general toxicity and local toxicity in mice and rats, and it was reported that it was almost non-irritating in human patch tests.

However, the above-mentioned conventional example is not applied to materials that directly touch the human body, such as general clothing materials, medical hygiene materials, living related materials, bedding materials, and the like.

[0007]

DISCLOSURE OF THE INVENTION The present invention has no toxicity to the human body, is extremely safe, has antimicrobial properties, antifungal properties, deodorant properties and long-lasting hydrophilic properties which are rich in durability. An object of the present invention is to provide an excellent short fiber nonwoven fabric which can be suitably used as a material for medical hygiene materials, living related materials, and bedding materials.

[0008]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, have reached the present invention.

That is, the present invention provides a hydrophilic nonwoven fabric comprising short fibers of a thermoplastic polymer, wherein a composite comprising a deacetylated product of chitin and cellulose fine powder is fixed to the nonwoven fabric. The non-woven fabric has antibacterial and antifungal properties.

First, the antibacterial, antifungal, and deodorant nonwoven fabric having hydrophilicity according to the present invention will be described. The nonwoven fabric of the present invention is composed of thermoplastic polymer short fibers, and a composite comprising a deacetylated product of chitin and cellulose fine powder is fixed to the nonwoven fabric.

The short fibers constituting the nonwoven fabric of the present invention are made of a thermoplastic polymer having a fiber-forming property, and are composed of a single polymer or two or more polymers of a core-sheath type or a side-by-side type. It is compounded.
Examples of the thermoplastic polymer include polyesters such as polyethylene terephthalate, polybutylene terephthalate, and copolyester; linear low-density polyethylene, low-density polyethylene, high-density polyethylene, polyolefins such as polypropylene; nylon 6, nylon 66;
Polyamides such as nylon 610 and nylon 46. In the case of composite fibers, a combination of polyethylene terephthalate and high-density polyethylene, a combination of polypropylene and linear low-density polyethylene, and a homopolymer of polypropylene and ethylene copolymerized randomly. And the like, and the like.

The fineness of the single fibers of the short fibers is not particularly limited. In particular, when flexibility is required in applications such as medical hygiene materials and bedding materials, the denier should be 5 deniers or less, preferably 2 deniers or less. Is good. In addition, this single yarn fineness is 0.
When the denier is less than 5 deniers, when the raw cotton is opened using a carding machine to prepare a web, the cardability of the short fibers decreases, which is not preferable.

The fiber length of the short fibers is appropriately determined according to the strength required for forming the nonwoven fabric and the method of forming the short fibers into a web. For example, if you need strong non-woven fabric,
The fiber length is preferably at least 25 mm, more preferably at least 35 mm. When a carding machine is used for web formation, the fiber length is preferably not less than 25 mm and not more than 80 mm. If the fiber length is less than 25 mm or exceeds 80 mm, the raw cotton is removed using the carding machine. When a web is formed by opening the fibers, the cardability of the short fibers decreases, which is not preferable. Further, when a web is prepared by a papermaking method, the fiber length is preferably set to 10 mm or less, and if the fiber length exceeds 10 mm, the dispersibility of short fibers decreases, which is not preferable.

The cross-sectional shape of the short fiber may be an irregular shape such as a round shape or a triangular shape, or a hollow cross-sectional shape.

The nonwoven fabric of the present invention is composed of the short fibers and has a basis weight of 5 g / m ^{2 to} 200 g / m ² . If the basis weight is less than 5 g / m ^2, it is not preferable because not only the basis weight is too low to produce a uniform nonwoven fabric, but also the utility value of the nonwoven fabric becomes poor. On the other hand, if the basis weight exceeds 200 g / m ² , the basis weight is too high and the nonwoven fabric becomes thick and hard, which is not preferable for use as a material for general clothing materials and especially for medical hygiene materials.

As described above, the hydrophilic antibacterial and antifungal deodorant nonwoven fabric of the present invention is a nonwoven fabric in which a composite comprising a deacetylated product of chitin and a cellulose fine powder is fixed to the nonwoven fabric. .

Examples of the deacetylated product of chitin, which is an antibacterial and antifungal deodorant component in the present invention, include mainly crab,
An amino group having a molecular weight of several hundred thousand is deacetylated by acid or enzymatic treatment of chitin obtained by removing contaminants such as calcium and protein from the outer shell of crustaceans such as shrimp by acid and alkali treatment. High molecular weight polymer, so-called chitosan. Further, a relatively low molecular weight polymer having a molecular weight of several thousands to tens of thousands, which is obtained by appropriately decomposing chitosan by an acid or enzyme treatment, may be used. The degree of deacetylation of this chitosan is preferably 50% or more in consideration of solubility in organic acids and inorganic acids and antibacterial properties.

The cellulose fine powder referred to in the present invention is a fine powder obtained by crushing cellulose pulp with a disk lifter or the like, and having a diameter of about 0.1 μm and a length of about several hundred μm. Made of natural cellulose. The cellulose fine powder does not need to be particularly high-purity, but may be any as long as it can be suspended in water.

Next, the method for producing the antibacterial, antifungal and deodorant nonwoven fabric having hydrophilicity according to the present invention will be described. In the present invention, first, a continuous fiber composed of the polymer is spun using a conventional melt spinning apparatus, the spun yarn is once wound up, a plurality of the obtained undrawn yarn packages are collected, and a plurality of undrawn yarns are collected. Is unwound and bundled and stretched in a tow state. Alternatively, a plurality of undrawn yarns are bundled and drawn in a tow state without winding the spun yarn once. In spinning, the take-off speed is
Usually, it is preferably about 100 to 1500 m / min. Stretching of the focused tow is performed in two or more stages. In drawing, the draw ratio depends on the type of the polymer constituting the fiber and the strength level required for the short fiber, but is usually 1.5 to 6.
It is better to be about 0 times.

Next, the obtained drawn tow is subjected to mechanical crimping using a staple type crimping device or the like, and then cut into a predetermined length to obtain short fibers. The number of crimps is usually about 8 to 20 pieces / inch, though it depends on the bulkiness required when the nonwoven fabric is used.

Next, a web is prepared using the short fibers obtained as described above. Web formation can be performed using a card machine or by a papermaking method.

Next, the obtained web is subjected to an embossing process using, for example, an embossing roller, or subjected to a heat bonding process using, for example, a hot air circulation type drier or the like, to produce a nonwoven fabric. When a nonwoven fabric is prepared by embossing using an embossing roller, the embossing condition is that the linear pressure of the embossing roller is usually 30 to 100 kg.
/ Cm, and the embossing roller temperature is set to a temperature which is lower by about 5 to 30 ° C. than the melting point of the thermoplastic polymer constituting the fiber, depending on the type of the thermoplastic polymer. In the case of a conjugate fiber, the temperature is preferably lower by about 5 to 30 ° C. than the melting point of the low melting point component of the polymer constituting the fiber. When a non-woven fabric is prepared by performing a heat-sealing process using a hot-air circulating drier, etc., the processing temperature depends on the type of thermoplastic polymer. The temperature is about 30 ° C. higher than the melting point of the thermoplastic polymer. In the case of a conjugate fiber, the temperature is preferably about 30 ° C. higher than the melting point of the low melting point component of the polymer constituting the fiber. Further, the processing time is preferably about 5 to 120 seconds.

Next, the obtained short-fiber nonwoven fabric is mixed with an aqueous solution of an organic or inorganic acid salt of a deacetylated product of chitin, for example, chitosan or a slightly decomposed product of chitosan, and an aqueous suspension of cellulose fine powder. Apply the liquid. As a coating method, a dipping method, a spraying method, a pad drying method, or the like can be used. The coating is preferably performed in a separate coating step provided between the winding after the web is formed.

The preparation of the treatment liquid is performed by the following method. First, chitosan or chitosan lightly decomposed product is swollen in water and then dissolved in acid. Examples of the acid used for solubilization include organic acids such as formic acid, acetic acid, lactic acid, citric acid, adipic acid, gluconic acid, and tartaric acid, and inorganic acids such as hydrochloric acid and phosphoric acid. Separately, a cellulose fine powder is added to water and stirred using a high-speed stirrer to prepare an aqueous suspension of the cellulose fine powder. Next, a treatment liquid is prepared by adding an aqueous solution of the inorganic acid salt or the organic acid salt of the chitosan or the mildly decomposed chitosan to the aqueous suspension of the cellulose fine powder and uniformly mixing the same.

Next, after the treatment liquid is applied to the short fiber nonwoven fabric, drying and heat treatment are performed. Drying and heat treatment
This is carried out by an ordinary hot air circulation type drier to evaporate water and form a complex comprising a deacetylated product of chitin and fine cellulose powder, and this complex is fixed on the surface of the constituent fibers of the nonwoven fabric. The heat treatment temperature is a heating temperature necessary for a cross-linking and complexing reaction between the deacetylated product of chitin and the cellulose fine powder, but it is generally preferable that the heat treatment temperature be 5 ° C. or lower than the melting point of the thermoplastic polymer constituting the nonwoven fabric.

The coating speed may be the production speed of the nonwoven fabric, usually 2 to 80 m / min, and does not limit the production speed at all.

Adjustment of the amount of adhesion due to differences in the coating method, coating speed, processing solution viscosity, etc. is performed by changing the processing solution concentration. An oil agent may be applied to the short-fiber nonwoven fabric. For example, an oil agent such as an antistatic agent, a water absorbing agent or a water repellent may be mixed and applied. The application of the treatment liquid may be on-line in the non-woven fabric manufacturing process or off-line for applying to the once wound non-woven fabric.

[0028]

As described above, the hydrophilic antibacterial and antifungal deodorant nonwoven fabric of the present invention has a composite comprising a deacetylated product of chitin and cellulose fine powder fixed to a short fiber nonwoven fabric made of a thermoplastic polymer. As a result, not only durable antibacterial, antifungal and deodorant properties are exhibited, but also permanent hydrophilic properties are exhibited.

With respect to the antibacterial action of chitosan, the growth inhibitory action of fungi, Escherichir coli (Escherichia coli), Staphylo-coccus aureus, etc.
(Staphylococcus aureus), Pseudomonas aer
uginosa (Pseudomonas aeruginosa), Bacillus sub
A growth inhibitory effect on Gram-positive and Gram-negative bacteria such as Tilis (B. subtilis) has been reported. The details of the mechanism of these antibacterial effects are unknown, but the cationic amino groups of the quaternized chitosan adsorb anionic constituents in the cell wall of the bacterium, and as a result, the biosynthesis of the cell wall is inhibited or the inside and outside of the wall It is presumed that antibacterial action is exhibited because active transport of substances is blocked.

The antibacterial, antifungal and deodorant nonwoven fabric having hydrophilicity of the present invention exhibits antimicrobial, antifungal and deodorant properties which are rich in durability. That is, amino groups present in the molecule of chitosan or chitosan mildly decomposed product react with carbonyl groups in cellulose to form a crosslinked complex, and this complex is firmly fixed to the fiber surface, resulting in poor durability. Rich antibacterial, antifungal and deodorant properties are exhibited. Therefore,
It has high resistance to peeling and falling off against physical friction or impact when used as a post-processing process or product, and has excellent washing resistance, dry cleaning resistance, and water jet needle resistance. . Further, in the antibacterial and antifungal deodorant nonwoven fabric of the present invention, since the amino group is present in excess, the amino group is reduced by a cross-linking reaction between the amino group of chitosan and the carbonyl group of cellulose, and the activity of the antibacterial and antifungal deodorant is reduced. It does not drop.

Further, in the nonwoven fabric having antibacterial, antifungal and deodorant properties having hydrophilicity according to the present invention, since the cellulose fine powder is fixed to the nonwoven fabric, permanent hydrophilicity is exhibited.

Furthermore, many molds and bacteria existing around the body assimilate the sweat component adsorbed on the underwear or socks to propagate and generate an unpleasant odor. However, according to the nonwoven fabric of the present invention, the propagation of these microorganisms Can be suppressed by suppressing the odor with an organic acid salt or an inorganic acid salt of chitosan or a chitosan mildly decomposed product.

Therefore, the antibacterial and antifungal deodorant nonwoven fabric having hydrophilicity of the present invention can be suitably used as a material for not only general clothing materials but also medical hygiene materials, living related materials and bedding materials. Further, since the nonwoven fabric of the present invention has both antimicrobial durability and permanent hydrophilicity, it can be suitably used not only for disposable applications but also for applications requiring durability.

[0034]

Next, the present invention will be specifically described based on examples. In Examples, a BL type viscometer was used as a deacetylated product of chitin, and a sample concentration of 1% by weight and a temperature of 20% were used.
Using chitosan having a viscosity of 9.8 centipoise and a deacetylation degree of 91.6% at 25 ° C., 25 parts by weight of ion-exchanged water was added to 1 part by weight of the chitosan, and the chitosan was swollen. 0.2 parts by weight and ion-exchanged water
8 parts by weight were added to prepare a chitosan acetate aqueous solution.

Separately, as a cellulose fine powder, a cellulite manufactured by Daicel Chemical Industries, Ltd. (α-cellulose 96%
DP grade, solid content 25% by weight with respect to water, registered trademark), and 1 part by weight of this cellulose fine powder
After adding 1.5 parts of ion-exchanged water, use a household mixer for 5 minutes.
A homogeneous suspension was created by stirring for minutes.

Next, while stirring the aqueous solution of chitosan acetate, an aqueous suspension of cellulose fine powder was added and uniformly mixed.
A non-woven fabric treatment liquid was used. In addition, upon mixing, the compatibility of the two liquids was good, and the mixed liquid was stable without coagulation and sedimentation even when left for a long period of time. The mixing weight ratio of cellulose and chitosan was adjusted by changing the respective liquid volume ratios. The amount of the coating applied to the nonwoven fabric was adjusted by changing the concentration of the processing solution.

The antibacterial activity was evaluated by measuring the bacterial reduction rate (%) by the shake flask method (a test method for antibacterial effect approved by the Textile Sanitation Processing Council). The antibacterial durability is measured by measuring the rate of bacteria reduction of the nonwoven fabric after washing 10 times with a neutral detergent. The cleaning resistance was evaluated by measuring the percentage, and the water resistance was evaluated by measuring the bacteria reduction rate of the nonwoven fabric after the water jet needle treatment. In the above evaluation, K. as a strain to be used. pneumoniae
ATCC 4352 was used.

The hydrophilicity was evaluated by calculating the percentage of the absorbed water out of 10 drops of ion-exchanged water dropped from a height of 1 cm on the surface of the nonwoven fabric placed on a filter paper and left horizontally. The ion-exchanged water was dropped at a rate of one drop per second from a 50 cc bottle.

The tensile strength of the nonwoven fabric is JIS L-10.
96, width 30 mm, length 1
The maximum tensile strength was measured and determined from a 00 mm test piece.

Example 1 A composite spinning hole 200 was prepared by mixing a polyethylene polymer A having a melting point of 128 ° C. and a melt index of 80 g / 10 min with a polyester polymer B having a melting point of 258 ° C. and an intrinsic viscosity of 0.70.
Spinning was carried out from a spinneret having four holes, and a core-sheath composite long fiber having polymer A as a sheath component and polymer B as a core component was spun. The single hole discharge rate was 0.27 g / min (the weight ratio of component A to component B was 1: 1) for both polymers A and B. After the spun filament yarn was cooled, it was wound at a winding speed of 1200 m / min to obtain a package of a core-sheath composite undrawn yarn. A plurality of the obtained packages were collected, and a plurality of undrawn yarns were unwound and bundled and drawn in a tow state. The stretching was performed in two steps, and the stretching ratio was 2.15. Next, the obtained drawn tow was mechanically crimped using a staple type crimping apparatus, and then cut into a predetermined length to obtain short fibers. The number of crimps of this short fiber is 14 pieces / inch, and the fiber length is 51 m.
m, the single yarn fineness was 2 denier.

Next, a web was prepared using the short fibers by using a roller card machine M32 type 60-M32 manufactured by Ikegami Kikai Co., Ltd. At the obtained web, temperature 1
Using a hot air circulating dryer at 35 ° C., a heat bonding treatment was performed for a treatment time of 60 seconds to prepare a short fiber nonwoven fabric. The obtained short fiber nonwoven fabric had a basis weight of 50 g / m ² , a tensile strength in the machine traveling direction of 10.7 kg / 25 mm, and a tensile strength in the lateral direction of 1.7 kg / 25 mm.

Next, a mixed solution of an aqueous solution of chitosan acetate and an aqueous suspension of cellulose fine powder was applied to the composite type short fiber nonwoven fabric. Coating is performed using a separate pad drier, immersed in a mixed solution prepared to a predetermined concentration, and then subjected to linear pressure.
Squeeze with a nip roller of 0 kg / cm,
After drying and heat treatment with a hot air circulating drier at ℃, it was wound into a roll. The processing speed was 10 m / min. When the treatment liquid was applied, ion-exchanged water was added to the undiluted treatment solution to change the concentration, and the short fiber nonwoven fabric having a different amount of adherence of the composite composed of chitosan and cellulose fine powder (Example 1-
1 to Example 1-12) were obtained.

Comparative Example 1 In the same manner as in Example 1, a short-fiber nonwoven fabric having a basis weight of 50 g / m ² , a tensile strength in the machine traveling direction of 10.3 kg / 25 mm, and a transverse tensile strength of 1.8 kg / 25 mm was prepared. Created.

Next, ion-exchanged water was spray-coated on the short-fiber nonwoven fabric in place of the mixture of the aqueous solution of chitosan acetate and the aqueous suspension of cellulose fine powder.

Mixing ratio by weight of chitosan to cellulose of the short fiber nonwoven fabric obtained in Examples 1-1 to 1-12, adhesion amount of the complex comprising chitosan and cellulose, reduction rate of shake flask bacteria, after washing 10 times Shake flask bacteria reduction rate of
The results of the evaluation of hydrophilicity were as follows. Also, short fibers having a weight ratio of chitosan to cellulose of 1: 0.2 and an adhesion amount of a complex comprising chitosan and cellulose of 80.5 × 10 ⁻³ g / m ² were used. Non-woven fabrics cleaned using a non-woven fabric with a petroleum detergent and a halogen-based detergent (Examples 1-13 and 1-1)
4) Similarly, water pressure of 600 pounds per square inch and 140
Nonwoven fabrics treated with water jet needle four times at 0 pounds per square inch each (Examples 1-15 and 1
Table 1 shows the evaluation results of the bacterial fiber reduction rate and hydrophilicity of the short fiber nonwoven fabric obtained in -16) and Comparative Example 1.

[0046]

[Table 1]

As apparent from Table 1, Examples 1-6 to
1-8 and the nonwoven fabric of Example 1-10 to 1-12 in which the complex comprising chitosan and cellulose was fixed to a certain amount or more had a very high rate of bacterial reduction and a rate of bacterial reduction after washing 10 times. High and hydrophilic. Further, the nonwoven fabric after the cleaning treatment in Examples 1-13 and 1-14 and the nonwoven fabric after the water jet needle treatment in Examples 1-15 and 1-16 both have a high bacteria reduction rate and are hydrophilic. It also kept the nature.

Example 2 A composite spinning hole 200 was prepared by mixing a polyethylene polymer A having a melting point of 128 ° C. and a melt index of 80 g / 10 min with a polyester polymer B having a melting point of 258 ° C. and an intrinsic viscosity of 0.70.
Spinning was carried out from a spinneret having four holes, and a core-sheath composite long fiber having polymer A as a sheath component and polymer B as a core component was spun. The single hole discharge rate was 0.27 g / min (the weight ratio of component A to component B was 1: 1) for both polymers A and B. After the spun filament yarn was cooled, it was wound at a winding speed of 1200 m / min to obtain a package of a core-sheath composite undrawn yarn. A plurality of the obtained packages were collected, and a plurality of undrawn yarns were unwound and bundled and drawn in a tow state. The stretching was performed in two steps, and the stretching ratio was 2.15. Next, the obtained drawn tow was mechanically crimped using a staple type crimping apparatus, and then cut into a predetermined length to obtain short fibers. The number of crimps of this short fiber is 14 / inch, and the fiber length is 51.
mm, the single-fiber fineness was 2 denier.

Next, a web was prepared using the short fibers by using a roller card machine M32 type 60-M32 manufactured by Ikegami Kikai Co., Ltd.

The resulting web was spray-coated with a mixture of a predetermined concentration of an aqueous solution of chitosan acetate and an aqueous suspension of cellulose fine powder, and then passed through a nip roller having a linear pressure of 4 kg / cm.

Next, the web was passed through a hot air circulating drier at a heating temperature of 120 ° C. to be subjected to a drying and heat bonding treatment to prepare a short fiber nonwoven fabric. The obtained short-fiber nonwoven fabric had a basis weight of 50 g / m ² , a tensile strength in the machine traveling direction of 10.1 kg / 25 mm, and a tensile strength in the transverse direction of 1.
It was 6 kg / 25 mm.

Comparative Example 2 A basis weight was set to 50 g / ml in the same manner as in Example 2 except that ion-exchanged water was applied by spraying instead of a mixed solution of an aqueous solution of chitosan acetate and an aqueous suspension of cellulose fine powder. m ² , a short fiber nonwoven fabric having a tensile strength of 10.6 kg / 25 mm in the machine direction and a tensile strength of 1.5 kg / 25 mm in the transverse direction was obtained.

The mixed weight ratio of chitosan to cellulose of the short fiber nonwoven fabric obtained in Example 2, the amount of the composite comprising chitosan and cellulose, the reduction rate of shake flask bacteria, 10
Table 2 shows the evaluation results of the decrease rate of the shake flask bacteria and the evaluation of the hydrophilicity after the first washing, and the evaluation results of the reduction rate of the bacteria and the hydrophilicity of the short fiber nonwoven fabric obtained in Comparative Example 2.

[0054]

[Table 2]

As is clear from Table 2, the nonwoven fabric to which the composite comprising chitosan and cellulose of Example 2 was attached had an extremely high rate of bacterial reduction despite 10 washes.
And it had 100% hydrophilicity.

[0056]

The antibacterial, antifungal and deodorant nonwoven fabric having hydrophilicity according to the present invention has the above-mentioned constitution, and has antimicrobial, antifungal, deodorant and permanent hydrophilic properties which are rich in durability. Moreover, since deacetylated chitin and cellulose fine powder are used, they are non-toxic and do not cause harm to the human body such as rash when used, and are extremely safe.

Therefore, the antibacterial and antifungal deodorant nonwoven fabric having hydrophilicity of the present invention can be suitably used as a material for not only general clothing materials but also medical hygiene materials, living-related materials and bedding materials. Further, since it has both antibacterial durability and permanent hydrophilicity, it can be suitably used not only for disposable applications but also for applications requiring durability.

Continuation of front page (56) References JP-A-4-174772 (JP, A) JP-A-4-194079 (JP, A) JP-A-3-220370 (JP, A) JP-A-4-82965 (JP) , A) JP-A-2-41473 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) D06M 13/00-15/72

Claims (1)

(57) [Claims] 1. A nonwoven fabric comprising short fibers of a thermoplastic polymer, wherein a complex comprising a deacetylated product of chitin and fine cellulose powder is fixed to the nonwoven fabric. Anti-mold deodorant non-woven fabric.