JPS60234631A - Anti-bacterial stickiness treated mat - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antibacterial adhesive-treated mat, and more particularly, it is characterized in that the pile surface of the mat is coated with an adhesive containing at least one antibacterial and antifungal agent. This invention relates to an adhesive treated mat for dust removal.

Conventionally, hospitals, research institutes, factories, various stores, offices, general residences, etc. have been using methods to prevent microorganisms attached to birds or other animals from attaching to the soles of pedestrians' shoes and being brought indoors. To prevent this, dust removal mats are placed at entrances, etc.

There are two main types of dust removal mats: one is called a sticky mat and the other is a pile mat. The former type of adhesive mats include those made by gelling PVC plastesol into a sheet and giving the sheet itself adhesive properties, and those made by attaching an adhesive film to a base. This mat uses the adhesiveness of the mat interface to move birds that adhere to the soles of shoes to the mat side. This type of adhesive mat has an excellent property of removing birds adhering to surfaces that come into contact with it simply by stepping on it, but it naturally creates adhesive force between it and the soles of shoes, etc. When doing so, the soles of the shoes stick firmly to the mat, making them uncomfortable. Furthermore, since the sole of a shoe has a curved and concave surface rather than a flat surface, birds, etc. attached to the concave part do not come into contact with the adhesive light surface, resulting in a sufficiently satisfactory dust removal effect. have not yet been mentioned.

In addition, the latter dust removal mat has the advantage that the fiber pile part rubs well not only on flat surfaces such as shoe soles but also on recessed areas, making it possible to remove dust and other dirt. They have the disadvantage that their adhesion retention is generally lower than that of adhesive mats.

Furthermore, these dust removal mats are intended to have a sanitary effect that prevents microorganisms such as grasshoppers from entering the room along with birds, but the microorganisms captured on the mats multiply in the mats, which can lead to shoes being contaminated. It must be able to prevent re-transfer from being brought into the room by re-adhering to the bottom etc.

Therefore, the object of the invention is to provide a dustproof mat that has less tendency to become sticky when stepped on with the sole of a shoe, has an excellent feel and texture as a dustproof mat, and is also effective in catching birds from the recessed parts of the sole of a shoe. To provide an antibacterial adhesive-treated mat in which the adhesive is removed, birds once adhered are held without being scattered again, and the growth of microorganisms such as bacteria in the mat pile is effectively inhibited.

According to the present invention, there is provided an adhesive treated mat for dust removal, characterized in that the pile surface of the mat is coated with an adhesive containing at least one kind of antibacterial and antifungal agent.

The invention will be explained in detail below with reference to the accompanying drawings.

In FIG. 1 showing the cross-sectional structure of the adhesive mat for dust removal of the present invention, pile threads 2 are tufted on a base fabric 1 and their tips are trimmed to form a mat surface. On the back surface of the base fabric 1, a backing layer 6 is formed, for example, by coating Nystomer latex or adhering an elastomer sheet.

In FIG. 2, which shows an enlarged view of the pile yarn layer, an antibacterial and antifungal agent-containing adhesive 4, which will be described in detail later, is provided on the surface of each pile yarn 60 in the form of a thin layer or particles.

The present invention provides that when a mat with an adhesive applied to the pile surface is used as a dust removal mat, it does not tend to stick when stepped on with the sole of a shoe, etc. The first feature is that it can effectively remove dust, and furthermore, the dust removal rate and bird retention rate are significantly improved compared to ordinary pile mats.

The following example shows five commercially available adhesive mats, an adhesive film, and an adhesive coated on the pile surface of the mat.
The results of measuring adhesive strength are shown.

Example 1゜Commercially available vinyl chloride resin plastisol adhesive mats A and B
, it was directly measured.

In addition, commercially available disposable adhesive sheets c,
For D and E, the sponge side of the double-sided adhesive tape with sponge was attached and fixed to an aluminum plate, and the adhesive force was measured. Four types of commercially available acrylic adhesives and a polyolefin adhesive (atactic polypropylene) were placed in a petri dish, dried to form a film, and after conditioning the film, one measurement was performed. Furthermore, the above-mentioned acrylic pressure-sensitive adhesive was applied to the matte pile, dried, and then measured. The following pace mats were used.

Pace mat 1゜ size: BCF nylon (stitch 6/inch, gauge %h pile height 9m, basis weight 880g/''fiffi, cut length: MBR
Latex (1000 piles) Base fabric: Polyester plain woven fabric (2009/m”) g/Nata 1
) (solid content 46%) Base mat 2° pile: crimped nylon 150 denier) (stitch 9.
2/inch, gauge %, pile height 10m, basis weight 606g
Base fabric: Polyester plain woven fabric Threading: Urethane base mat 6 Pile: Neck 35Q denier (stitch 9 finches, gauge theory, pile height 5, date 9609/2, cut pile) Base Fabric: PP plain woven fabric + PP cotton Tuft Neutsking: NBR The amount of adhesive applied to the pile mat is 100% on the pile surface.
The solid content per cm was 0.511.

Adhesive strength was measured in an environment of 20°C and 65±5% RH using a circular adapter with a diameter of 10III11 and an adhesion area of 0.785cIIL2 and a rheometer manufactured by Fudo Kogyo Co., Ltd., and a 2 o'clock load was applied to the adapter. After pressing against the adhesive treated surface of the mat, the vertical peel force was measured at a tensile rate of 2 cyt/min.

The results obtained are shown in Table 1.

1st coating A PVC plastisol sheet 140 B -100 C adhesive sheet 293 D 161 E 68 F Acrylic adhesive I 2800 0 m 5600 H# II 4610 J # W 411O K Polyoleain adhesive 500 L Base mat 1 + acrylic adhesive Agent 1 0M Pacemat 2+ ■ O N Base mat 30 N 0 0 Pacemat 2+ ■ 0 As a result of the above, all commercially available adhesive mats exhibit adhesive strength to the suppressing surface to varying degrees, and this is not a problem. According to the present invention, whereas it is considered to be the cause of causing pleasure,
Even when using adhesives that are themselves quite adhesive,
It can be seen that by applying this to the pile surface, the adhesion is reduced to a measurably low level and the feel is significantly improved.

Example 2 Next, the dust removal effect of the commercially available adhesive mat described above and the adhesive-treated mat according to the present invention with respect to dust adhering to the uneven surface was measured, and the results are shown in the second column below.

Commercially available adhesive mats include A-Et used in Table 1 above.
-1 F to J were used as the adhesive treated mats according to the present invention.

The dust removal rate was measured as follows. That is, 8 types of JIS Z8901 dust were uniformly applied to a rubber sheet of size 8x8α with grooves 6111 m deep per 1 cIL in varying amounts, and the dust coated surface and matte were coated uniformly. contact with the adhesive surface of the
1- Peel off and plot the amount of dust carried in (coating amount) and the amount of dust collected on the adhesive surface on a graph.

Attached drawings Figures 3 and 4 respectively, commercially available adhesive mat B
And the amount of dust brought in (Iv/64 cIIL”) and the amount of dust collected (II9) for the adhesive treated mat L according to the present invention.
/64) is shown. is obtained from the slope of the straight line in the plots of these drawings.

The results are shown in the second column below.

2nd coat A PVC plastisol sheet 17 B 12 C adhesive sheet 7 8 9 L Base mat 1 + acrylic adhesive I 36M Base mat 2 + acrylic adhesive 1 34N Pace Matsuro + acrylic adhesive 1 360 Pace mat 2
+ Acrylic adhesive IV 37 From the results of the second variation above,
It will be understood that by applying the adhesive to the pile surface of the mat, the dust removal rate, that is, the amount of dust collected per amount of dust brought in, can be significantly improved compared to known adhesive mats.

Example 3 Next, the relationship between the amount of adhesive applied to the mat and the dust removal rate was measured. As the mat, the above-mentioned base mat I
, l and I[t-, acrylic pressure-sensitive adhesive (2) was applied in various amounts, and dried and humidity conditioned. Regarding this adhesive treated mat, the dust removal rate was measured in the same manner as in Example 2 except that a flat rubber sheet was used as the dust cloth rubber sheet in place of the uneven rubber sheet of Example 2.

The measurement results are shown in Figure 3.

Table 6 Reduction rate (%) 0 68% 25% 36% 0.2 64 76 68 0.4 65 81 72 0.6 70 80 74 The above results show that compared to untreated putt miles, This shows the fact that the dust removal rate is significantly improved by applying the agent.

Example 4 The amount of dust retained on the adhesive-treated mat prepared in Example 6 was measured. In other words, each mat has 8s of JIS Z8901.
The excess dust was shaken off using a dust shaker, and the amount of dust retained in the pile was measured.

For comparison, a similar test was conducted on a pressure-sensitive adhesive film formed using acrylic pressure-sensitive adhesive ①. The results are shown in the fourth column.

4th column (dust retention amount 9/100cm”) 0 0.5 0
．． 6 0.4 - 0・2 1.4 1.5 1.5 0.180・4 1
．． 8 1.6 1.7 0.180・6 2.2 1.
9 2.1 0.18 The above results show that by applying the adhesive to the matte pile, the dust retention rate is significantly improved and the re-scattering of the once captured dust is effectively prevented.

As shown in Examples 1 to 4 above, by treating the pile surface of the mat with an adhesive, excellent dust removal and dust retention effects can be achieved without reducing the feel or texture when stepping on the pile surface of the mat. It can be seen that the following can be obtained. However, it has been found that when the pile surface of the mat is treated with an adhesive, a problem arises, unlike a flat adhesive sheet or adhesive tape. In other words, the deeper parts of the mat pile are not affected by light and are less likely to come into contact with the outside air, so especially in the case of adhesive-treated mats, microorganisms such as bacteria and mold can easily grow. .

According to the present invention, by pre-containing an antibacterial and antifungal agent in the adhesive used to treat the pile surface of the mat, the growth of microorganisms inside or deep inside the pile fibers is effectively suppressed. can do.

In order to impart antibacterial properties to mat pile, there are known methods such as adding an antibacterial agent to the fibers that make up the pile itself and treating the fibers that make up the pile with an antibacterial agent. However, in the present invention, it is most effective to contain an antibacterial agent in the adhesive used to treat the mat pile in order to prevent the growth of microorganisms such as bacteria. The reason for this is not exactly known, but it is thought that one factor is that the antibacterial agent acts directly on the microorganisms captured by the adhesive and prevents the scattering of microbial spores and the like. Furthermore, it is thought that the cause is that the antibacterial agent is attached to the mat pile together with the adhesive in a state where the specific area is extremely large. This latter contribution may be attested to by the fact that the treated mats of the present invention exhibit a considerably larger zone of inhibition against microorganisms, as shown in the examples below.

The examples below demonstrate the excellent antimicrobial properties of the treated mats of the present invention.

Example 5゜A mixture of the above-mentioned acrylic adhesive and the antibacterial agent shown below in the amount shown in Table 5 based on the solid content was applied to the pile surface of the above-mentioned pacemat 1, with an area of 10 per cent solid content. It was coated in an amount of o and sg and dried to produce an adhesive treated mat.

These mats were cut into circles with a diameter of 2 aa, and a heart infusion agar medium was poured into them, solidified to the same height, placed in the center of nine Petri dishes, and subjected to an antibacterial test. Also,
An antifungal test was conducted in the same manner except that a potato dextrose agar medium was used.

The antibacterial and antifungal agents used are as follows.

1, 2-bromo-2-ditop-propane-1,3-diol, B, diphenyl ether compound C1, nitrogen-containing sulfur compound, organic nitrogen-sulfur-containing cyclic compound E, organic bromine compound Fo dihaloalkylaryl sulfone G, Phenoxyethanol H, benzimidazole derivative, υ The results obtained are shown in Table 5. The number indicated by the symbol 10 indicates the width of the inhibition zone, and the symbol - indicates that no inhibition zone was formed.

In the same antibacterial test I is for St, aurews I is B, asbtilia ■ is E, coli ■ is Pg, agrwginoaa Show each meeting.

Moreover, the antifungal test was conducted using Asp and Niggrft.

The number in parentheses for the antibacterial and antifungal agent indicates the amount incorporated in the adhesive (% by weight based on the solid content of the adhesive).

In the present invention, various types of adhesives known per se can be used as the adhesive. This type of adhesive is generally natural rubber, recycled rubber, styrene-butadiene, SB
Block polymers such as S or SIS, isoprene-based, chloroprene-based, acrylic-butadiene-based, acrylic resin-based, vinyl resin-based, silicone resin-based, polypropylene-based, polyester-based, etc., and polyterpene resin as necessary. , gum rosin, rosin ester or rosin derivative, oil-soluble phenol resin, coumaron/indene resin, petroleum-based hydrocarbon resin, and other tackifiers; mineral oil, liquid polybutene, liquid polyacrylate, lanolin, and other plasticizers or softeners; zinc; Fillers and pigments such as Hana, titanium oxide, various clays, water-containing aluminum, calcium carbonate, and 11M materials: anti-aging agents for rubber,
The composition contains anti-aging agents such as dithiocarbamates and metal chelating agents. All of these adhesives can be used for the purpose of the present invention, but acrylic adhesives ( Acrylic acid ester) adhesives are particularly desirable.

The adhesive may be in the form of a solvent type, an emulsion type, a solventless type, or a liquid curing type.

As the antibacterial and antifungal agent, any known per se can be used. Of course, the antibacterial and antifungal agent must exhibit good dispersibility in the adhesive coating composition used and must not cause precipitation or separation. Antibacterial and antifungal agents include organic halogen compounds, organic sulfur compounds, organic arsenic compounds, organic boron compounds, organic metal compounds, nitro compounds, alcohols, phenols, chlorophenols, cyclic ethers, and aldehydes. , ketones, carboxylic acids, esters and lactones, acid amides, carbamic acids and aminocarboxylic acids, nitrile compounds, amidines and guanidines, quaternary ammonium salts, pyridines, quinolines, acridines, diazines and triazines. , virol or imidazole derivatives, oxazole or oxazine derivatives, thioxane or thioxanthone, thiazole or thiadiazine, thiocyan or inthiocyanate, thiourea or thiosemicarbazide, dithiocarbamate or thiuram disulfide, sulfide, sulfoxide Antibacterial and antifungal agents of the sulfones, sulfonic acids, sulfamides, phosphoric esters, and thiophosphoric esters that meet the above-mentioned requirements can be used.

Examples of suitable antibacterial and antifungal agents have already been given in Example 5, but the following may also be mentioned:

1.6-dicya2-6.4-dibromobutane, alkylpolyethylene polyaminocarboxylic acid, olumpenzylphenol, organic quinolinium compound, benzalkonium chloride, chlorhexydi:ydiflucone-), o-tridithiodicarbamate, 2- Aminoethyl alkylglycine In the present invention, these antibacterial and antifungal agents can be used alone or in combination of 211 or more, and the amount used is:
It is generally preferred to use it in an amount of 0.05 to 50% by weight, especially 0.5 to 60% by weight, based on the solids of the adhesive.

Pile mats coated with adhesives containing antibacterial and antifungal agents can be made of crimped or uncrimped synthetic fibers such as nylon fibers, acrylic fibers, vinylon fibers, polyester fibers, vinylidene chloride fibers, polyolefin fibers, and vinylon fibers. Spun yarns, multifilament yarns, natural fiber spun yarns such as cotton, or blended yarns thereof are used.

As the base fabric for tightening and fixing the pile yarn, a woven fabric made of synthetic fibers with excellent dimensional stability such as polyester fiber, or a net for the non-woven bottom 7 is used.

There is no particular limit to the pile length of the yarn, but it is generally between 6 and 4.
It is desirable that the number be 0, particularly in the range of 5 to 20.

Examples of the backing material include synthetic rubbers such as acrylonitrile-butadiene copolymer rubber (NBE), styrene-butadiene copolymer rubber (SBR), and chloroprene, soft vinyl chloride resin, polyurethane, acrylic elastomer, and styrene-butadiene copolymer rubber. Thermoplastic resin elastomers such as block copolymer distoners can be mentioned. These elastomers are applied in the form of latex to the back side of the matte base fabric, dried and, if necessary, cured to form a backing layer. Backing layer 7F! : If you want to make it even thicker, layer the backing layer provided in the form of latex and an unvulcanized rubber sheet, and perform vulcanization and adhesion under pressure and heat to form a thicker backing layer.

The adhesive is applied to the pile layer by a method known per se, such as spray coating, brush coating, roller coating, blade coating, or the like. As shown in the example above, the amount of adhesive to be applied to the pile layer is 0.05 to 2 per area of the pile layer, based on the solid content of the adhesive! i'/100(7A"
, especially in an amount of 0.2 to 1 g/100 CI11''.

After applying the adhesive, the pile layer is dried and, if necessary, cured to obtain the product of the present invention.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing the cross-sectional structure of an adhesive mat for dust removal according to the present invention, FIG. 2 is a partially enlarged cross-sectional view showing the pile yarn in FIG. 1, and FIGS. 3 and 4 are 3 is a graph showing the relationship between the amount of dust brought in and the amount of dust collected for adhesive mat B and adhesive treated mat L in Example 2. Patent Applicant Duskin Franchise Co., Ltd. Figure 1 Figure 3 Figure 2 Figure 3 Figure 4 Procedural amendment (voluntary) August 15, 1980 Manabu Shiga, Commissioner of the Japan Patent Office 1, Patent Application for Indication of Case 1982- 89308 No. 2, Name of the invention Antibacterial adhesive treated mat 3, Relationship with the case of the person making the amendment Patent applicant I) 1 Gate 5 Uυ + Packing fork 4, Agent 〒105 5, No date of amendment order 6 , to method 6 to be corrected (1) In the 8th line from the bottom of page 9 of the specification, "F to J" is corrected to rL to 01. (2) On the last line of page 11, r base pine) 1. "II and ■" are corrected to r base mat 1.2 and 31. (3) Please enter r in the pace mat column in Table 3 on page 12.
I'', rlI'', rm'' are respectively rl
Correct as J, r2J, r3J. (4) In the 2nd line from the bottom of page 12, write 1 example 6.
Correct Example 3J. (5) In the pace mat column of Table 4 on page 13, write “
I'' 9th [4, rmJ, respectively, flJ
, r2j , r3J. that's all

Claims (1)

[Scope of Claims] (1) An adhesive treated mat for dust removal, characterized in that the pile surface of the mat is coated with an adhesive containing at least one antibacterial and antifungal agent. (21) An adhesive containing an antibacterial and antifungal agent in an amount of 0.05 to 50% by weight based on the solid content of the adhesive is coated in an amount of 0.05 to 2 g/100 cIIL! based on the solid content. The mat according to claim 1. (6) The mat according to claim 1, wherein the adhesive is an acrylic adhesive.