JPH05263358A - Production of odor-absorbing surface skin material - Google Patents

Abstract

PURPOSE:To obtain a surface skin material having flame-retardancy and odor- absorbing property and suitable as an inner trim for vehicle, etc., by dispersing a synthetic resin latex, active carbon, a clay mineral and a flame-retardant in an aqueous medium in the presence of a surfactant, foaming the obtained composition and applying the foamed composition to a substrate. CONSTITUTION:A synthetic resin composition is produced by dispersing (A) a polyurethane-based synthetic resin latex (containing 100 pts. wt. of solid component), (B) 50-200 pts. wt. (in terms of total solid content) of an actin carbon and a hydrated magnesium silicate clay mineral and (C) 100-200 pts.wt. (in terms of total solid content) of a flame-retardant composed of a brominated diaryl oxide and/or a brominated arene and antimony oxide in an aqueous medium in the presence of (D) a surfactant having a weight-average molecular weight of >=150 and <10,000 and a surfactant having a weight-average molecular weight of >=10,000. The obtained dispersion is mechanically foamed by introducing air into the composition with an oaks mixer, etc., applied to the surface of a substrate at a rate of 30-200g/m<2> in terms of solid content and dried to form the objective surface skin material.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a synthetic resin composition for foam backing. In particular, the present invention relates to a method for producing an odor absorbing skin material in which a skin material that can be used for a vehicle seat, a lining of a door or a ceiling, or a floor carpet has a function of absorbing a bad odor in a vehicle interior.

[0002]

2. Description of the Related Art Conventionally, a resin composition containing a synthetic resin latex as a main component has been used for backing a fiber material.
It is disclosed in Japanese Patent No. 0120. On the other hand, a synthetic resin composition in which a polymer latex and a filler composed of hydrous magnesium silicate clay mineral and activated carbon are dispersed in an aqueous medium with a surfactant for the purpose of removing a bad odor in a vehicle or removing static electricity. Japanese Patent Laid-Open No. 145864/1990 discloses a method of applying the above to the interior skin material of a vehicle.

[0003]

However, the backing composition described in the above-mentioned publication has a low solid content concentration of about 20%, so if a backing layer having foamed open cells is to be formed. The workability is extremely poor because it is necessary to once form a thin foam backing layer, further form a backing layer on it, and repeat this. Moreover, in the method in which the foam backing layers are laminated by such a method, the backing agent invades into the air bubbles of the backing layer having the pre-formed continuous air bubbles, and thus the deodorizing property is not improved as expected. Further, according to the knowledge of the present inventors, a deodorizing agent such as activated carbon or hydrous magnesium silicate clay mineral, and a combination of tetrabromobisphenol A and an inorganic flame retardant such as antimony trioxide or antimony pentoxide are used in combination. Has a drawback that it becomes hard and, when it is used for a vehicle seat, for example, it adversely affects the finish.

[0004]

Means for Solving the Problems The inventors of the present invention have made extensive studies in view of the above-mentioned circumstances, and found that an interface used for dispersing a synthetic resin latex and a deodorant of activated carbon or hydrous magnesium silicate clay mineral in an aqueous medium. By using different activators with different molecular weights, it is possible to significantly improve the non-volatile content, and by foaming this, the amount applied to the fabric can be significantly reduced and the deodorizing performance can be improved. The inventors have found that excellent backing can be performed, and have completed the present invention. Further, when a specific flame retardant is used in a synthetic resin composition comprising a synthetic resin latex containing the above deodorant, the flame retardancy is improved without impairing the deodorizing performance, and particularly, a seat skin excellent as a vehicle seat skin material. We found that we can develop materials.

The method for producing an odor absorbing skin material according to claim 1 comprises a synthetic resin latex, activated carbon, and a hydrous magnesium silicate clay mineral having a weight average molecular weight of 150 or more and 10 or more.
Characterized in that a synthetic resin composition in which a surfactant having a weight average molecular weight of 10,000 or more and a surfactant having a weight average molecular weight of 10,000 or more is used in combination is mechanically foamed, then applied to a base material and dried. It is what

The surfactant used in the present invention is characterized by using a mixture of the one having a weight average molecular weight of 150 or more and less than 10,000 and the polymer compound having a weight average molecular weight of 10,000 or more. . Examples of the surfactant having a weight average molecular weight of 150 or more and less than 10,000 include sodium alkyl naphthalene sulfonate, sodium tripolyphosphate, sodium tetraphosphate, sodium hexametaphosphate, sodium polyacrylate, polyvinyl alcohol and the like. As the surfactant having a weight average molecular weight of 10,000 or more, there are synthetic polymers such as polyvinyl alcohol, sodium polyacrylate and styrene-maleic acid copolymer, and cellulose derivatives such as methyl cellulose, hydroxyethyl cellulose and carboxymethyl cellulose. The weight average molecular weight is 150
The amount of the surfactant less than 10,000 is 0.3 to 1 with respect to 100 parts by weight (solid content) of the total amount of the activated carbon as a filler and the hydrous magnesium silicate clay mineral.
A range of 0 parts by weight is preferable. Within the above range, the effect of dispersing the filler (activated carbon and hydrous magnesium silicate clay mineral) is sufficient, and further, poor dispersion is unlikely to occur. The blending amount of the surfactant having a weight average molecular weight of 10,000 or more is 0.1 to 10 parts by weight based on 100 parts by weight of the solid content of the filler (activated carbon and hydrous magnesium silicate clay mineral). desirable. Within the above range, the stability of the composition is sufficient, the thickening effect is small, and it is preferable in terms of work. Examples of the synthetic resin latex used in the present invention include polyacrylic acid ester latex, polyvinyl acetate latex, polyethylene latex, and their modified products and copolymers. Other modified natural rubber, styrene-butadiene rubber,
Acrylonitrile-butadiene rubber, isobutylene rubber,
Examples thereof include rubber latex such as isoprene rubber. As hydrous magnesium silicate clay minerals, sepiolite, silotile, raffinite, falconite,
Examples include palygorskite. Also, these are commonly called mountain cork, mountain leather, mountain wood, sepiolite, and attapulgite. You may use those baked at the temperature of 400-800 degreeC.

The blending ratio of the synthetic resin latex and the filler (activated carbon, hydrous magnesium silicate clay mineral) in the present invention is such that the solid content of the filler is 50 to 200 parts by weight with respect to 100 parts by weight of the solid content of the synthetic resin latex. The range of parts is preferable. Further, the content ratio of activated carbon is preferably 10 to 80% by weight based on the total amount of activated carbon and hydrous magnesium silicate clay mineral. A synthetic resin composition prepared by dispersing the above synthetic resin latex, hydrous magnesium silicate clay mineral, activated carbon, and a surfactant in water usually has a nonvolatile content of 3
After adjusting to 0 to 50% by weight, it is used by mechanically foaming while blowing air using, for example, an Oaks mixer. Normally, the expansion ratio is used in the range of 1.5 to 6 times, but it is 1.
A range of 5 to 4 times is preferable. Further, if necessary, a lauryl sulfate soda salt generally known as a foaming agent, a higher fatty acid ammonium salt such as ammonium stearate, a fluorosurfactant, and a higher fatty acid group alcohol are appropriately added and mechanically foamed. Is also good. However, since these foaming agents tend to reduce the adsorptive capacity of hydrous magnesium silicate clay minerals and activated carbon as adsorbents, their use should be minimized. Also,
So-called chemical foaming is inferior in deodorizing property, which is not preferable. The foamed synthetic resin composition is particularly preferably used as a vehicle skin material after being applied to cloth or the like and dried. The coating amount is preferably in the range of 30 to 200 g / m ² in terms of solid content. When the coating amount is in the above range, the adhesive strength of the film is sufficient and the texture is also good.

The invention according to claim 2 is the method for producing an odor absorbing skin material according to claim 1, characterized in that the synthetic resin latex is a polyurethane resin.

According to a third aspect of the invention, the synthetic resin latex is a polyurethane resin and the flame retardant is
The method for producing an odor absorbing skin material according to claim 1, wherein a synthetic resin composition containing brominated diaryl oxide and / or brominated allene and antimony oxide is used.

The polyurethane resin used in the present invention is an aqueous resin, and a polyhydroxy compound is reacted with an excess of polyisocyanate, and a chain extender having two or more active hydrogens is added with NCO / H = 1 /. It is obtained by reacting at 1.5. And, in the component, -CO
_{^{O -, -SO 3 -, -PO}} 4 -, were introduced ionic groups of -N ⁺ etc., or water by using the introduced ones or emulsifier -CH ₂ CH ₂ O- etc. hydrophilic group Alternatively, an emulsified product may be used. The polyhydroxy compound is
Polyether, polyester polyol, having an average molecular weight of about 500 to 5000 having hydroxyl groups at both ends,
Polycarbonate and the like are preferable. Examples of the antimony oxide that is an inorganic flame retardant in the present invention include antimony trioxide and antimony pentoxide. Further, as the brominated diaryl oxide which is a specific organic flame retardant,
Decabromodiphenyl oxide, hexabromophenyl oxide, pentabromo oxide and the like can be mentioned. Examples of the brominated allene include hexabromobenzene and the like. These are used as a mixture of one or two or more.

The mixing ratio of these polyurethane resin, activated carbon, hydrous magnesium silicate clay mineral, surfactant, inorganic flame retardant and organic flame retardant is such that activated carbon and hydrous water are added to 100 parts by weight of the solid content of the polyurethane resin. The total solid content of the magnesium silicate clay mineral is 50 to 200 parts by weight, and the total solid content of the inorganic flame retardant and the organic flame retardant is 100 to 20.
It is preferably 0 part by weight. Further, the content ratio of activated carbon is preferably 10 to 80% by weight based on the total amount of activated carbon and hydrous magnesium silicate clay mineral. Further, in the total amount of the inorganic flame retardant and the organic flame retardant, the inorganic flame retardant is 20 to 50% by weight, more preferably 25 to 35% by weight.
Is good.

A composition obtained by dispersing these polyurethane resin, activated carbon, hydrous magnesium silicate clay mineral, surfactant, inorganic flame retardant and organic flame retardant in water usually has a nonvolatile content of 30 to 60% by weight. , And more preferably 35
After adjusting to the range of 50 wt%, it is used by mechanically foaming while blowing air using, for example, an Oaks mixer. In this case, the expansion ratio is usually 1.5.
It is used in an amount of up to 6 times, but is preferably in the range of 1.5 to 3.5 times from the viewpoint of bad odor adsorption ability and adhesive ability. On this occasion,
After adjusting the non-volatile content, it may be mechanically foamed as it is, but sodium lauryl sulfate ester soda salt, which is generally known as a foaming agent, higher fatty acid ammonium salt such as ammonium stearate, fluorine-based surfactant, higher fatty acid. Mechanical foaming may be carried out after adding a group alcohol appropriately.

The synthetic resin composition which has been foamed can be suitably used particularly as a vehicle skin material after being applied to a cloth or the like and dried. The coating amount is 30 to 200 g / m in terms of solid content.
A range of ² is preferred. When the coating amount is in the above range, the adhesive strength of the film is sufficient and the texture is also good. In addition, the synthetic resin composition of the present invention may be used in combination with a conductive agent, a foam stabilizer, a cross-linking agent, etc. within a range that does not impair its original performance.

The synthetic resin composition of the present invention is applicable not only as a skin material for vehicles but also as a skin material for interiors of ships and airplanes, as well as for carpets, wallpaper and ceiling materials for houses. be able to.

[0015]

EXAMPLES The present invention is described in detail below with reference to examples, but parts and% are based on weight unless otherwise specified.

Example 1 As a synthetic resin latex,
The polymer composition was butyl acrylate / methyl acrylate / acrylic acid = 80/18/2 (weight ratio), and the glass transition temperature (Tg; measured by a dynamic viscoelasticity measuring device “Rheometric PSAII” manufactured by Rheometric Co.). A synthetic resin composition for a skin material was obtained by the following method using an acrylic emulsion (value: the same in the following examples) of -25 ° C (nonvolatile content: 50%). 90 parts by weight of sepiolite having a particle size of 100 mesh or less and a particle size of 2
Dry mix with 90 parts by weight of activated carbon of 50 mesh or less,
As a surfactant, 0.9 part by weight of sodium alkylnaphthalene sulfonate (molecular weight 342) and an average molecular weight of 1 were added.
3 parts by weight of 30,000 carboxymethyl cellulose
What was dissolved in 66 parts by weight of water was mixed using a twin-screw mixer. Then, 200 parts by weight of the above acrylic emulsion (50% non-volatile content) was added and mixed to obtain 38 non-volatile content.
% Synthetic resin composition was obtained. The obtained synthetic resin composition was foamed 2.5 times with an Oaks mixer, and 80 g / m ^{2 in} solid content was applied to the back surface of the fabric made of polyester fiber with a doctor blade at 130 ° C.
Was dried in a hot air dryer for 20 minutes to obtain a skin material. The deodorizing performance and the seam strength of the obtained skin material were evaluated. The evaluation results are shown in Table 1.

The deodorizing performance was evaluated by a sensory test of the smell of tobacco bleeding, and was carried out by the following procedure. Prepare four 45 x 45 x 45 cm acrylic boxes. One of the prepared acrylic boxes is selected and the test piece of the example or comparative example (40
X 40 cm) is attached. Similarly, attach the reference fabric to the inner ceiling surface of another acrylic box. This reference fabric was coated with an acrylic resin composition containing no deodorant. When these test pieces and the reference fabric are attached to the ceiling surface, they are attached so that the surface coated with the mixed resin emulsion is in contact with the ceiling surface. Then, burn 2 cm of cigarette in both boxes. After being left for 30 minutes, the test piece and the reference fabric are taken out, and after 1 hour, they are left in the remaining two acrylic boxes, respectively, and both acrylic boxes are sealed. One hour later, 12 subjects compared and evaluated the odor intensity in the acrylic box containing the test piece. Evaluation is ○
A three-level evaluation of Δx was given, and a sample with excellent deodorizing performance was given as o.

The seam strength test was carried out by repeatedly pulling a test piece with a load of 3 kg using an Amsra type woven fabric abrasion tester, and the state of slippage of the seam after 2500 times was observed and evaluated. . For the test pieces, two or more pieces of the skin material cut into a width of 10 cm and a length of 10 cm were set in a set of two pieces each in the vertical direction, and two pieces of the test piece were superposed on each other, and the front side of the two test pieces were overlapped with each other. A sewing machine is attached at a position of 10 mm in parallel with the one side, and is attached, and further, a length of 8 mm is provided at a position of 25 mm from each edge of the two sides perpendicular to the one side.
A total of four 8 mm cuts were made (that is, the distance between two parallel cuts was 50 mm). At the time of the test, the test machine sandwiches between two parallel cuts of the prepared test piece. In Table 1, the evaluation was that the seam slippage was 1.7 m.
Those having a diameter of m or less are shown by ◯, and those having a diameter of 1.7 mm or more are shown by x.

For comparison, a skin material was manufactured (Comparative Example 1) without foaming the above synthetic resin composition but in the same manner except for the above, and the deodorizing performance and the seam strength were evaluated.

Example 2 In the synthetic resin composition of Example 1, instead of the acrylic emulsion, the polymer composition was styrene / butadiene / acrylic acid = 50/47 /
3, the measured glass transition temperature (Tg) of the film was −
A synthetic resin composition having a nonvolatile content of 38% was obtained by using SBR latex (nonvolatile content: 38%) having a temperature of 35 ° C. and by otherwise performing the same composition and operation as in Example 1. It was foamed 2.5 times with an Oaks mixer, and the fabric was coated with a solid content of 80 g / m ² and dried to obtain a skin material. The deodorizing performance and the seam strength of this skin material were evaluated in the same manner as in Example 1.

For comparison, this synthetic resin composition was coated and dried in the same manner without foaming (Comparative Example 2) to produce a skin material. Then, the deodorizing performance and the seam strength of this skin material were evaluated in the same manner as in Example 1. The evaluation results are shown in Table 1.

[Example 3] In the synthetic resin composition of Example 1, instead of the acrylic emulsion, a polyester of 1,4-butadiol / adipic acid was reacted with dimethylolpropionic acid and tolylene diisocyanate in a solvent. , The reaction product was subjected to chain extension and water dispersion in water in the presence of anhydrous piperazine and triethylamine,
Polyurethane latex obtained by solvent removal (measured Tg of film = -15 ° C, non-volatile content 50%) was used, and otherwise the non-volatile content was 38 by the same composition and operation as in Example 1.
% Synthetic resin composition was obtained. It was foamed 2.5 times with an oaks mixer and the solid content was 8 on the fabric.
A skin material was obtained by applying 0 g / m ² and drying. The deodorizing performance and seam strength of this skin material were evaluated in the same manner as in Example 1.

For comparison, this synthetic resin composition was coated and dried in the same manner without foaming (Comparative Example 3) to produce a skin material. Then, the deodorizing performance and the seam strength of this skin material were evaluated in the same manner as in Example 1. The evaluation results are shown in Table 1.

[0024]

[Table 1]

From Table 1, seam strength was good in all of Examples 1 to 3 and Comparative Examples 1 to 3, but deodorizing performance was good in all of the skin materials of Examples 1 to 3. It is clear that the deodorizing performance of the skin materials of Comparative Examples 1 to 3 obtained by the production method without foaming is low, and particularly the deodorizing performance of the skin material of Comparative Example 3 is extremely poor. That is, it is understood that deodorizing performance is improved by foaming the synthetic resin composition before applying it to the substrate.

Example 4 Aqueous polyurethane resin containing adipic acid / neopentyl glycol, 1,6 hexane glycol / isophorone diisocyanate as a main component (solid content 50%, melting start temperature 175 ° C. 100% modulus 26 kg / cm ² ) 100 parts of antimony trioxide dispersion 17 parts, decabromobiphenyl ether dispersion 33
Parts, acrylic emulsion type thickener 4 parts, 28% ammonia water 0.4 parts, water-based polyurethane emulsion obtained by adding water to a solid content of 40% is used for the skin material by the following method. A synthetic resin composition was obtained. Grain size 100
90 parts by weight of sepiolite having a mesh size or less and 90 parts by weight of activated carbon having a particle size of 250 mesh or less are dry-mixed, and 0.9 parts by weight of sodium alkylnaphthalene sulfonate (molecular weight 342) and an average molecular weight of 1300 are used as a surfactant.
A solution of 5 parts by weight of carboxymethyl cellulose of No. 00 dissolved in 366 parts by weight of water was mixed using a biaxial mixer. Thereafter, 200 parts by weight of the above-mentioned aqueous polyurethane emulsion (40% nonvolatile content) and 100 parts by weight of an aqueous dispersion of a flame retardant (60% nonvolatile content of antimony trioxide and decabromodiphenyl oxide in a solid content ratio of 1: 2). Parts were added and mixed, and then water was added to obtain a synthetic resin composition having a nonvolatile content of 38%. The obtained synthetic resin composition was foamed 2.5 times with an Oaks mixer, and 60 g / m ^{2 of} solid content was coated on the back surface of the fabric made of polyester fiber with a doctor blade and dried in a hot air dryer at 130 ° C. And dried for 20 minutes to obtain a skin material. In order to evaluate the deodorizing performance of the obtained skin material, the adsorption amount of ammonia and the adsorption amount of toluene were determined by an adsorption test. In addition, FMVS
The burning rate was measured according to S-302 to evaluate the flame retardancy of the skin material. FMVSS is the Federal Motor Vehicle Safety Standards.

For comparison, a skin material was produced in the same manner except that the synthetic resin composition was not foamed (Comparative Example 4), and the deodorizing performance and flame retardancy were evaluated in the same manner.

[Example 5] In the synthetic resin composition of Example 4, antimony trioxide and hexabromophenyl oxide were mixed in an amount of 1: 1 instead of the mixed aqueous dispersion of antimony trioxide and decabromodiphenyl oxide as a flame retardant.
A synthetic resin composition was obtained by using a composition in which the solid content ratio was 2.5 and the nonvolatile content was 60% so that the nonvolatile content was 60%. This synthetic resin composition was applied to a fabric and dried as in Example 4,
A skin material was manufactured. This skin material was also evaluated for deodorizing performance and flame retardance in the same manner as in Example 4.

For comparison, a skin material was produced in the same manner except that the synthetic resin composition was not foamed (Comparative Example 5). Similarly, this skin material was evaluated for deodorizing performance and flame retardancy. The evaluation results are shown in Table 2.

Example 6 In the synthetic resin composition of Example 4, 1% of antimony trioxide and tetrabromobisphenol A were used instead of the mixed aqueous dispersion of antimony trioxide and decabromodiphenyl oxide as a flame retardant. :
A synthetic resin composition was obtained by exactly the same composition and operation except that a non-volatile content of 60% was dispersed in water at a solid content ratio of 3. This synthetic resin composition was applied to a fabric and dried in the same manner as in Example 4 to produce a skin material. Similarly, the deodorizing performance and flame retardancy of this skin material were evaluated.

For comparison, a skin material was produced in the same manner except that the synthetic resin composition was not foamed (Comparative Example 6). Similarly, the deodorizing performance and the flame retardancy of the skin material were measured. The sex was evaluated. The evaluation results are shown in Table 2.

[0032]

[Table 2] Flame retardance: Burning speed was measured according to FMVSS-302 and evaluated from the burning speed.

From Table 2, the deodorizing performance of the skin materials of Comparative Examples 4 to 6 in which the synthetic resin composition was backed on the fabric without foaming was low, but Examples 4 to 6 in which the synthetic resin composition was foamed and backed were used. It is clear that the deodorizing performance is improved in the skin material of. Further, the flame retardancy which is improved by adding the flame retardant is also higher than the skin materials of Comparative Examples 4 to 6 in which the synthetic resin composition is foamed as in Examples 4 to 6. It turns out that it will improve further.

[0034]

According to the manufacturing method of the present invention, since the synthetic resin composition is foamed, the nonvolatile content can be increased and the required coating amount can be reduced. Furthermore, the deodorizing performance can be remarkably enhanced. Furthermore, the strength of the applied fabric can be increased. Furthermore, a synthetic resin composition containing polyurethane as a main component to which a specific flame retardant is added, and a production method of foaming, coating, and drying the same does not deteriorate the feeling and has a deodorizing performance. The flame retardancy is improved as well.

The skin material produced by the manufacturing method of the present invention can effectively absorb and remove tobacco odor, so-called new car odor composed of pyridine derivative or ester with low polarity, and styrene, so that it can be effectively used for deodorization in vehicles. It is particularly suitable. Further, without deteriorating the texture, it is possible to improve the flame retardancy, and not only contains activated carbon having electrical conductivity, but also a conductive agent can be blended, so that the antistatic function or An antifouling function can be added, and it is extremely excellent as an interior material for a vehicle, especially as a skin material for a seat. It can be applied not only to vehicles but also to vehicles such as ships and airplanes, as well as seat skins for houses, carpets, wallpapers, ceiling materials and the like.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location D06M 15/564 15/693 // B29K 75:00 4F 105: 04 4F B29L 31:58 4F (71 ) Applicant 000241500 Toyota Boshoku Co., Ltd. 1-1, Toyota-cho, Kariya city, Aichi prefecture (72) Inventor Yoshio Yamada, Toyota-Cho, Toyota city, Aichi prefecture Toyota Motor Corporation (72) Inventor Osamu Araki Toyota-city, Aichi prefecture Toyota Town No. 1 Toyota Automobile Co., Ltd. (72) Inventor Yoshiro Umemoto Toyota City, Aichi Prefecture Toyota Town No. 1 Toyota Automobile Co., Ltd. (72) Inventor Masaaki Sugiura Aichi Prefecture Aichi-gun Nagakute-machi Ojaku-yoji 41 No. 1 Toyota Central Research Institute Co., Ltd. (72) Inventor Mitsumasa Horii Aichi-gun Aichi-gun Nagakute-machi Oogata-Chaji Yokoido 41 No. 1 Toyota Co., Ltd. Central Research Laboratory (72) Inventor Seiji Onoda, Aichi Prefecture, Nagakute Town, Aichi Prefecture, 1-chome, 41, Yokomichi Yokoido Central Research Institute Co., Ltd. (72) Inventor Takatoshi Sekihara 1-1, Kariya City, Aichi Prefecture Toyota Inside the textile company (72) Inventor Akihiro Matsuyama 1-1, Toyota-cho, Kariya city, Aichi Prefecture Inside the spinning cloth company (72) Masaaki Izumi 1-1-chome, Kariya city, Aichi Toyota Boshoku Co., Ltd. In-house (72) Inventor Toru Umehara 2-5-25 Takashihama, Takaishi-shi, Osaka (72) Inventor Reisaburo Tomioka 2-3 Chiyoda, Takaishi-shi, Osaka

Claims (3)

[Claims] 1. A synthetic resin latex, activated carbon, and hydrous magnesium silicate clay mineral, having a weight average molecular weight of 15
0 or more and less than 10000 surfactant and weight average molecular weight 1
A synthetic resin composition dispersed in an aqueous medium using two kinds of surfactants consisting of 0000 or more surfactants is foamed by a mechanical foaming means, and then applied to a base material and dried. A method for producing a characteristic odor absorbing skin material. 2. The method for producing an odor absorbing skin material according to claim 1, wherein the synthetic resin latex is a polyurethane resin. 3. The synthetic resin latex is a polyurethane resin, and a synthetic resin composition containing brominated diaryl oxide and / or brominated allene and antimony oxide is used as a flame retardant. Item 2. A method for producing an odor absorbing skin material according to item 1.