JPS60234629A - 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 adhesive treated mat for dust removal, and more specifically, it is used by being laid at the entrance of various buildings for the purpose of removing dust, and has a pleasant feel when stepped on. This adhesive mat for dust removal has excellent dust removal effects.

Conventionally, in hospitals, research institutes, factories, rice stores, offices, general residences, etc., there are measures to prevent dust or microorganisms attached to these from adhering 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 an adhesive mat, and the other is a pile mat. The former adhesive mats include those made by gelling PVC plastisol into a sheet and making the sheet itself sticky, and books with adhesive film attached to the base. The mat uses the adhesiveness of the mat surface [7] to transfer dust adhering to the soles of shoes to the mat side. This type of adhesive mat has an excellent property of removing dust adhering to surfaces that come into contact with it simply by stepping on it, but it naturally creates adhesive force between it and the sole of the shoe, etc. However, when I walk, the soles of my shoes tend to stick to the mat, which is unavoidable. Furthermore, the sole of the shoe is curved rather than flat;
<Due to the solder surface, dust adhering to the concave portions does not come into contact with the adhesive surface, and a sufficiently satisfactory dust removal effect has not been achieved.

In addition, the latter type of 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 concave areas, making it possible to remove dust and other dirt, but it also retains the adhesion of grains. The disadvantage is that the force is generally lower than that of adhesive mats.

Therefore, an object of the present invention is to provide a dustproof mat with less tendency to stick when stepped on with a shoe sole, etc., and to have an excellent feel and feel as a dustproof mat, and to also remove adhesive from the recessed parts of shoe soles, etc. However, it is an object of the present invention to provide an adhesive-treated mat capable of holding produce once adhered without scattering it again.

According to the present invention, there is provided an adhesive mat for dust removal characterized by applying an adhesive to the pile surface of the mat.

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

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 an elastomer or latex, or by adhering an elastomer sheet.

In FIG. 2, which shows a layer of conopile yarns in an enlarged view, an adhesive 4 is provided on the surface of each pile yarn 6 in the form of a thin layer or particles.

According to the present invention, when the pile surface of the mat is coated with an adhesive and used as a dust removal mat, it does not tend to stick when stepped on with the sole of a shoe, etc. It is characterized by the fact that it can effectively remove even the accumulated residue, and furthermore, the dust removal rate and yield 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 type adhesive sheet CI
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 pressure-sensitive adhesives and a polyolefin pressure-sensitive adhesive (atactic polypropylene) were placed in a petri dish, dried to form a film, and the film was subjected to humidity conditioning before measurement. 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゜Pile: BCF nylon (stitch 6 inches, gauge 51-52, pile height 9tyaas basis weight 880t/rrl, cut pile) Base fabric: Polyester plain woven fabric (200r/i) Backing: NBR latex (1000f/i) ( Solid content 46
%) Base mat 2゜pile double-wound nylon 150 denier (stitch 92
/inch, gauge 1/8, pile height 10 gates, basis weight 606 1/W? , cut pile) Base fabric: polyester plain woven fabric Backing: urethane base mat 3° pile: Nylon 650 denier (stitch 9/inch, gauge 5/62, pile height 5, basis weight 96o2/-, cut pile) Base fabric: PP plain woven fabric 10 PPIMI tufted backing: N
BR The amount of adhesive applied to the pile mat is 100% on the pile surface.
- The solid content per unit was 0.5f of adhesive.

The adhesive strength was measured in an environment of 2oc and 65 ± 5% RH using a circular adapter with a diameter of 10 m and an adhesion area of 0.785 mm and a Fudo Kogyo Shishi-Ometer.
After applying a load of 1 kg to the adhesive-treated surface of the mat, the vertical peeling force was measured at a tensile rate of 2 cm/cm.

The results obtained are shown in Table 1.

Table 1 (above) Type Adhesive strength (f/cr/l) A PVC plastisol sheet 140 B 100 C adhesive sheet 293 D 161 E 6B F Acrylic adhesive 1 2800 G n 56 [O HI 4610 / IV 4110 K Polyole, fin adhesive 500L Base mat 1 + acrylic adhesive ■OM Base mat 2+ ■
O N Base mat 5+y It 0 0 Base mat 2+ #! V' 0 The above-mentioned results show that all commercially available adhesive mats exhibit adhesive strength to the suppressing surface to varying degrees, which is thought to be the cause of discomfort, whereas the present invention For example, even when using an adhesive that itself has a strong adhesive force, applying it to the pile surface reduces the adhesive force to an unmeasurable level, resulting in a significant improvement in feel. Recognize.

Example 2 Next, the dust removal effect of the above-mentioned commercially available adhesive mats 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 Table 2 below.

As commercially available adhesive mats, A and E used in Table 1 were used, and as adhesive treated mats according to the present invention, F to J were used.

The dust removal rate was measured as follows. That is, 8 types of JIS Z8901 dust were uniformly applied in varying amounts to a rubber sheet of size 8 cm x 8 sub-rubber sheets in which grooves of 3 m depth were provided per 1 cWI, and this dust coating was applied to one side. and the adhesive surface of the mat are brought into contact with a pressure of 30 kg, then the rubber sheet is peeled off, and the amount of dust brought in (amount applied) and the amount of dust collected on the adhesive surface are plotted on a graph.

Figures 6 and 4 of the accompanying drawings show the amount of dust brought in (■/64 cr/l) and the amount of dust collected (Misaki/64 all) for the commercially available Adhesive Maret R and the adhesive treated mat L according to the present invention, respectively.
shows a plot of the relationship between is obtained from the slope of the straight line in the plots of these drawings.

The results are shown in Table 2 below.

Table 2 Mat Type Dust removal rate (@ A PVC plastisol sheet 17 B 12 C Adhesive sheet 7 8 5 ・ 9 L Base mat 1 + Acrylic adhesive It 36M
Base Mat 2 + Acrylic Adhesive II 34N Pace Mat 3 + Acrylic Adhesive I 360 Pace Mat 2 + Acrylic Adhesive IT 37 From the results in Table 2 above, it is clear that applying the adhesive to the pile surface of the mat will cause some problems. It will be understood that the dust removal rate, ie, the amount of dust collected per dust load, can be significantly improved compared to known adhesive mats.

Example 6 Next, the relationship between the amount of adhesive applied to the mat and the dust removal rate (@) was measured.
．． Using 1 and 2, acrylic pressure-sensitive adhesive 2 was applied in various amounts, and then dried and the humidity was adjusted. 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-coated rubber sheet instead of the uneven rubber sheet of Example 2.

, the measurement results are shown in Table 3.

Table 6 Dust removal rate (@ 0 68chi 25% 66% 0.2 64 76 6B 0.4 65 81 72 0.6 70 80 74 The above results indicate that the adhesive This shows the fact that the dust removal rate is significantly improved by coating treatment.

Example 4 The adhesive treated mat prepared in Example 6 was measured for dust retention. That is, various pines HC5 JIS Z8901-8
A sufficient amount of seed dust was applied, 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 Table 4.

Table 4 (Dust retention amount f/100crI) 0 0.5 0
．． 60.4- 0.2 1.4 1.3 1.3 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 (-5) It can be seen that the re-scattering of the dust once captured is effectively prevented. .

In the present invention, various types of adhesives known per se can be used as the adhesive. This type of adhesive is generally made of natural rubber, recycled rubber, styrene-butadiene, or SBR.
Or block polymer type such as SIS, isoprene type,
Elastomer polymers such as chloroprene, acrylic-butadiene, acrylic resin, vinyl resin, silicone resin, polypropylene, and polyester, as well as polyterpene resin, gum rosin, rosin ester or rosin derivative, and oil-soluble phenol, as necessary. Tackifiers such as resins, coumaron/indene resins, petroleum hydrocarbon resins;
Plasticizers and softeners such as mineral oil, liquid polybutene, liquid polyacrylate, and lanolin; zinc white, titanium oxide, various clays, hydrated aluminum, calcium carbonate,
Fillers and pigments such as various pigments: Composed of anti-aging agents such as anti-aging agents for rubber, dithiocarbamates, metal chelating agents, etc. All of these adhesives can be used for the purpose of the present invention, but acrylic adhesives (acrylic acid Particularly desirable are adhesives containing esters.

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

The pile mat to which the adhesive is applied can be spun yarn or multifilament yarn of synthetic fibers such as crimped or uncrimped nylon fibers, acrylic fibers, vinylon fibers, polyester fibers, vinylidene chloride fibers, polyolefin fibers, vinylon fibers, etc. , natural fiber spun yarns such as cotton, or blended yarns thereof are used.

The base fabric for tightening and fixing the pile yarns is a woven fabric, non-woven fabric, or net made of synthetic fibers with excellent dimensional stability such as polyester fibers. The pile length of pile yarn is
There is no particular limit, but generally 6 to 40 a.m., especially 5 to 2 a.m.
A range between 0 and 0 is desirable.

Elastomers used for the backing include synthetic rubbers such as acrylonitrile-butadiene copolymer rubber (NBR), styrene-butadiene copolymer rubber (SBR), and chloroprene, soft vinyl chloride resin, polyurethane, styrene-butadiene copolymer rubber, and styrene-butadiene copolymer rubber. Examples include thermoplastic resin elastomers such as Genblock copolymer elastomers. Apply elastomer or latex to the back of the matte base fabric, dry, and if necessary cure to form a backing layer.

If you want to make the backing layer even thicker, layer the backing layer provided in the form of latex with 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 above example, the amount of adhesive applied to the pile layer is 0.05 to 2F/100i, particularly 0.2 to IP/100i, per area of the pile layer, based on the solid content of the adhesive. It is better to set it up.

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

In addition, in the description of the above embodiment, a base fabric is used as a mat, a pile tufted to the base fabric, and when this pile is removed +)
- A structure consisting of a backing was adopted, but the adhesive was applied to a flat base material; - The pile was flocked from above the lever. The present invention is not limited to the above-mentioned embodiments, such as the structure may be replaced with a different structure, but the present invention is not limited to the above-mentioned embodiments. It is included within.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing the cross-sectional structure of the adhesive mat for dust removal of the present invention, FIG. 2 is a partially enlarged cross-sectional view showing the pile yarn in FIG. 1, and FIGS. 6 and 4 are examples. 2 is a graph showing the relationship between the amount of dust brought in and the dust collection rate for the sticky pine)/lj and the sticky treated mat L in No. 2. Figure 1 Figure 2 Figure 3 Figure 4 Procedural amendment (voluntary) August 15, 1980 Manabu Shiga, Commissioner of the Patent Office 1, Indication of the case Patent Application No. 1989-89306 2, Name of the invention adhesive Processing mat 3, Relationship with the case of the person making the amendment Patent applicant I) 1 replacement υ 11 reversal 4, agent 〒105 5, no date of amendment order 6, subject of amendment (1) Bottom of page 8 of the specification In line 7, correct "F to J" to "rL to O". (2) On page 1O, lines 7 to 8, “Pacemat I, I
I and ■", r pace mat l. 2 and 3”. (3) In the pace mat column of Table 3 on page 10, enter r.
I'', rU'', rm'' are respectively ff1
Correct it as j, F2J, F3j. (4) On page 11, line 5, replace “1 example 6” with “example 3”
I am corrected. (5) Please enter r in the pace mat column in Table 4 on page 11.
I 4, rTI'', r■'', respectively.
Correct them as i'lj, F2j, and Ir3j. that's all

Claims (3)

[Claims] (1) An adhesive treated mat for dust removal, characterized in that the pile surface of the mat is coated with an adhesive. (2) The mat according to claim 1, wherein an adhesive is applied to the pile surface in an amount of 0.05 to 2 f/100 cJ based on solid content. (3) The mat according to claim 1, wherein the adhesive is an acrylic adhesive.