JP6072419B2 - Flocking gloves - Google Patents

Flocking gloves Download PDF

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Publication number
JP6072419B2
JP6072419B2 JP2012037236A JP2012037236A JP6072419B2 JP 6072419 B2 JP6072419 B2 JP 6072419B2 JP 2012037236 A JP2012037236 A JP 2012037236A JP 2012037236 A JP2012037236 A JP 2012037236A JP 6072419 B2 JP6072419 B2 JP 6072419B2
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glove
flocked
flocking
adhesive layer
natural rubber
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JP2013170341A (en
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千穂 福島
千穂 福島
彰悟 磯部
彰悟 磯部
克樹 首藤
克樹 首藤
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ショーワグローブ株式会社
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Description

  The present invention relates to a flocked glove, and more particularly to a flocked glove excellent in tactile sensation on the inner surface of the glove and a flocked glove excellent in tactile sensation on the inner surface of the glove and excellent in voltage resistance.

As household gloves and working gloves, and so-called support gloves on the outer surface of the fibrous glove base rubber or resin is coated, there is called en Support glove where made of rubber or resin without a fibrous glove base body, further The unsupported gloves include a flocked flocked glove and a non-flocked non-flocked glove.

  Examples of the flocking gloves include flocking gloves (Patent Document 1) in which ultra-short fibers are attached to the inner surface of a rubber or resin glove base, and moisturizing gloves (in patent) that are coated with short fibers treated with a moisturizing component. Document 2) has been proposed. However, these all use an acrylic adhesive as an adhesive layer for adhering the flocked layer to the glove base, but when the flocked layer is adhered to the glove base made of natural rubber using an acrylic adhesive There is a problem that the adhesive layer easily peels from the glove base due to the difference in SP value.

  In order to solve this problem, for example, a glove (patent document 3) in which an anchor coat layer is provided between a glove base made of natural rubber and an acrylic adhesive layer, or a modified natural rubber grafted with an acrylic monomer. There is disclosed a glove (Patent Document 4) that uses a rubber as an adhesive layer.

On the other hand, with the rapid progress of electric cars and hybrid cars, the use of gloves having voltage resistance is indispensable for these manufacturing processes and maintenance in order to avoid impacts caused by static electricity. For example, in the JIS standard and the Ministry of Health, Labor and Welfare Notification, it is required that the test voltage of 3000 V / 1 minute be satisfied at a working voltage exceeding 300 V and not exceeding 600 V.
As a glove satisfying such a standard, for example, an insulating glove for electric circuit work formed by a block copolymer having an aromatic vinyl compound block or a thermoplastic elastomer composition containing the block copolymer is disclosed. (Patent Document 5).

JP 2007-063688 A JP 2004-204430 A Japanese Patent Laid-Open No. 5-305589 JP 2004-27445 A JP 2010-185168 A

  However, the glove described in Patent Document 3 is not preferable because the thickness of the glove increases due to the anchor coat layer and the workability is lowered. Moreover, although the glove described in the above-mentioned Patent Document 4 eliminates the problem of deterioration in workability due to peeling of the flocked layer and increase in the thickness of the glove, it becomes expensive because it uses a modified special natural rubber, In addition, since the surface of the adhesive layer is fast (skinning: the state in which the skin is stretched), the amount of the flocking layer to be bonded becomes small or unevenly formed, and as a result, the feel on the inner surface of the glove is reduced. The problem is.

  On the other hand, the insulating gloves for electric circuit work described in Patent Document 5 have a problem that many are expensive because a special material ensures insulation.

  In view of such circumstances, the present invention solves the above-described problems of the prior art, and provides a flocked glove excellent in tactile feel on the inner surface of the glove, and a flocked glove excellent in tactile feel on the inner surface of the glove and excellent in voltage resistance. .

Feature of the present invention is a glove having an adhesive layer and a flocked layer on the inner surface of the glove base body consisting of natural rubber, the adhesive layer is a Ru planted hair glove name from natural rubber containing a nonionic surfactant.

  Another feature of the present invention is a flocked glove in which the glove substrate contains waxes.

  Another feature of the present invention is a flocked glove having an evaporation residue of 60 μg / ml or less.

  Another feature of the present invention is a flocking glove that does not short-circuit even when an AC voltage of 3000 V is applied for 1 minute.

  Another feature of the present invention is a flocked glove having a glove base thickness of 0.4 to 1.2 mm.

  Another feature of the present invention is that the natural rubber compounding liquid is attached to the surface of the hand mold to be semi-gelled or solidified, washed with water and dried, and then an adhesive layer made of a natural rubber compounding liquid containing a nonionic surfactant is adhered. A flocking glove manufacturing method for performing flocking processing.

  Another feature of the present invention is a method for producing a flocked glove wherein the glove substrate contains a wax.

  Another feature of the present invention is a method for producing a flocked glove that is washed with water for at least 15 minutes.

  Another feature of the present invention is a method for producing a flocked glove in which the thickness of the glove base is 0.4 to 1.2 mm.

  The flocking glove of the present invention contains a nonionic surfactant in the adhesive layer, so that a desired amount of flocking layer is adhered to the adhesive layer by delaying the formation of the adhesive layer. Are better. In the case of a flocked glove that does not require tackiness, a flocked glove with reduced tackiness is provided by containing a wax in the glove base.

  Further, by setting the evaporation residue of the glove to 60 μg / ml or less, the adhesive strength between the glove base and the adhesive layer is increased, and troubles such as peeling of the flocked layer from the glove base during use do not occur.

  Moreover, the flocking glove of this invention does not short-circuit, even if it applies the alternating voltage of 3000V for 1 minute, and is excellent in withstand voltage property. The thickness of the glove base is preferably 0.4 to 1.2 mm.

The flocking glove of the present invention has a natural rubber compounded liquid attached to the surface of the hand mold, semi-gelled or solidified, washed with water, dried, and then attached with an adhesive layer made of a natural rubber compounded liquid containing a nonionic surfactant, It can be obtained by flocking.
A glove with reduced tackiness can be obtained by containing waxes in the glove base. The thickness of the glove base is preferably 0.4 to 1.2 mm.

  By performing washing with water for at least 15 minutes, the evaporation residue of the glove can be reduced to 60 μg / ml or less, and the adhesive strength between the glove substrate and the adhesive layer can be increased.

FIG. 1 is a photograph showing a worn state of a worn surface in a method for evaluating the adhesive strength between a glove base and an adhesive layer. FIG. 2 is a photograph showing the presence or absence of tackiness.

  The flocked glove of the present invention is a glove having a flocked layer on the inner surface of a glove base made of natural rubber, wherein the flocked layer is bonded via an adhesive layer made of natural rubber containing a nonionic surfactant. Features.

As the glove base, natural rubber is used in terms of volume resistivity, current value and processability. The volume resistivity is a numerical value of the ease of energization by the material. The volume resistivity of natural rubber is 10 14 to 10 15 , and NBR is 10 10 to 10 11 and CR is 10 12 to 10 13 . Compared with high volume resistivity, it is difficult to conduct electricity and has excellent voltage resistance.
Natural rubber latex is classified into water-based natural rubber latex and solvent-based natural rubber latex, but water-based natural rubber latex is preferred for the glove base of the present invention from the viewpoint of working environment and the like. Examples of commercially available products of water-based natural rubber latex include MLA21 (manufactured by Rivertex), LA-TZ (manufactured by Pknk Sunchemistry Chem), and the like. MLA21 is preferable in that it can reduce evaporation residue.

  When the thickness of the glove base is too thin, the strength and voltage resistance tend to be insufficient. On the other hand, when the thickness is too thick, the workability tends to decrease, and therefore, the thickness is preferably about 0.4 to 1.2 mm. .

Since the flocking glove of the present invention uses natural rubber as a material, it has a tackiness on the surface and a very good antiskid property. However, for example, when manufacturing or servicing an automobile, it is necessary to move the screw held on the palm to the fingertip and grip it. If the tackiness is too strong, such work is required. It becomes difficult. In such a case, the tackiness of the glove surface can be reduced by adding waxes to the glove base. Examples of such waxes include paraffin wax, microcrystalline wax, liquid paraffin, and paraffin-based synthetic wax, and these may be used alone or in combination of two or more as required. As waxes have a lower melting point or a higher paraffin content, there is a tendency that an effect of reducing tackiness is obtained. The addition amount of the wax is preferably 0.5 to 10 parts by weight, more preferably 1 to 3 parts by weight with respect to 100 parts by weight (solid content) of natural rubber latex. If the added amount of wax is less than 0.5 parts by weight, the effect of reducing tackiness is not sufficient. On the other hand, if it exceeds 10 parts by weight, the wax tends to bleed and a powdery product tends to be generated.
For natural rubber, various additives such as pH adjusters, colorants such as pigments, sulfur, vulcanization accelerators, metal oxides, heat stabilizers, antioxidants, light stabilizers, UV absorbers, etc., as necessary Can be blended.

The adhesive layer in the present invention is a layer for adhering the glove base and the flocked layer, and natural rubber is used, and water-based natural rubber latex is particularly preferable. When the gelation of the adhesive layer suddenly occurs, film formation occurs on the surface, preventing piercing of the flocked pile, making it difficult for a sufficient amount of flocked layer to adhere, and reducing the amount of flocking or making it uneven.
In order to suppress such film formation, a nonionic surfactant is added. Among the nonionic surfactants, polyoxyethylene derivatives are preferable, and among these derivatives, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, and polyoxyethylene sorbitan fatty acid ester are preferable. Specific examples include octylphenoxy polyethoxyethanol (Triton X100 or Triton X102, manufactured by The Dow Chemical Company). By adding a nonionic surfactant, it is considered that this acts as a stabilizer for natural rubber and delays film formation (gelation) of natural rubber. The addition amount of the nonionic surfactant is preferably 0.1 to 1.0 part by weight, more preferably 0.3 to 0.8 part by weight, based on 100 parts by weight (solid content) of natural rubber latex. When the addition amount of the nonionic surfactant is less than 0.1 parts by weight, the effect of delaying the film formation is not sufficient, while when it exceeds 1.0 parts by weight, the film formation becomes too slow and the flocked pile is formed in the adhesive layer. It tends to be buried and the texture inside the glove becomes worse.
For the adhesive layer, various additives such as pH adjusters, colorants such as pigments, sulfur, vulcanization accelerators, metal oxides, heat stabilizers, antioxidants, light stabilizers, UV absorbers, etc., as necessary Can be blended.
The thickness of the adhesive layer after completion of the glove is preferably 0.05 to 0.8 mm, and more preferably 0.1 to 0.5 mm. If it is less than 0.05 mm, the adhesive layer is too thin, and the proportion of the portion buried in the adhesive layer of the flocked pile is smaller than the portion exposed without being buried in the adhesive layer, and the flocked pile is detached from the adhesive layer. This is not preferable because the possibility of separation increases. When the thickness exceeds 0.8 mm, the ratio of the portion buried in the adhesive layer of the flocked pile becomes larger than the portion exposed without being buried in the adhesive layer, resulting in a tingling tactile sensation. This is not preferable because there is a high risk of occurrence.

  As the flocking layer, fibers such as rayon and cotton are preferable, the fineness is preferably 0.5 to 1.7 decitex, and the length is preferably about 0.3 to 1.0 mm. In particular, the mass ratio of rayon / cotton is 70 / It is preferably about 30 with a fineness of about 1.0 denier and a length of about 0.5 mm.

  The flocking glove of the present invention attaches a natural rubber compounding liquid to the surface of the hand mold to make it semi-gelled or solidified, washed with water and dried, and then adheres an adhesive layer made of a natural rubber compounding liquid containing a nonionic surfactant. It can be produced by flocking.

  To describe a preferred production method, a heated hand mold made of earthenware is dipped in a coagulant and pulled up, and then dried.

Next, the hand mold is dipped in the glove base liquid and then lifted and dried. This step can be repeated a plurality of times as necessary, thereby increasing the thickness of the glove base.
Next, the hand mold is immersed in room temperature water and washed with water. By washing with water, the evaporation residue of the glove can be reduced to 60 μg / ml or less, and the adhesive strength between the glove substrate and the adhesive layer can be increased. Washing time is usually 10 minutes or longer, preferably 15 minutes or longer, and sufficient adhesive strength can be obtained. For example, even if sweat is applied while wearing a flocking glove, peeling of the flocked layer from the glove base is prevented. The upper limit is not particularly limited, but even if it is too long, there is almost no difference in effect, so it is uneconomical and productivity is reduced, so about 30 minutes is preferable. After washing with water and drying, the water on the rubber film surface on the hand mold is dried. Since it suffices for the moisture on the rubber film surface to be eliminated, it may be dried at room temperature, but it is desirable from the viewpoint of productivity to dry at about 50 to 90 ° C. for about 3 to 5 minutes.

  Next, the hand mold is dipped in the adhesive layer compound solution and then pulled up and dried.

  Next, the flocking layer is electrostatically flocked to the adhesive layer. Then, vulcanization is performed by heating.

  After the vulcanization is completed, the glove is reversely released from the hand mold, washed again with water, and dried to obtain the flocked glove of the present invention.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example and a comparative example, this invention is not restrict | limited at all by these.

  The physical properties and characteristics of the flocked gloves obtained in the following examples and comparative examples were measured or evaluated by the following methods.

Evaporation residue:
The film collected from the flocked gloves is leached with 2 ml of water per 1 cm 2 of film at 60 ° C. for 30 minutes, and the residue obtained when the obtained leachate is evaporated to dryness is defined as the evaporation residue. The evaporation residue is preferably 60 μg / ml or less.

Withstand voltage test (leakage current value, short circuit or energization):
Based on JIS T8112, it tested according to the method prescribed | regulated to JIST8010. The flocking gloves were tested by immersing them vertically in a water bath with the fingertips facing down so that the water level inside the gloves was the same.

Bond strength between glove base and adhesive layer:
After immersing the test piece collected from the back of the flocked glove in 40 ° C. water for 2 hours, place the test piece on the holder of the testing machine Nu-Martindale (manufactured by James H. Head Co., Ltd.) with the flocked layer on the outside. After mounting and wearing 200 times, the wear state of the test piece was observed with the naked eye. When the adhesive strength between the glove base and the adhesive layer is low, the glove base is exposed by peeling or scraping the adhesive layer due to friction, but when the adhesive strength is high, it is difficult to be scraped even if the adhesive layer is rubbed. The rate at which the glove substrate is exposed is small. Therefore, the greater the exposure ratio of the adhesive layer, the greater the adhesive strength between the glove base and the adhesive layer.
The photograph shown in FIG. 1 shows the wear after friction of the test piece when the washing time is 0 minute (Example 4), 10 minutes (Example 5), 15 minutes (Example 6), and 30 minutes (Example 3). Although the state surface is shown, a white part is a contact bonding layer and a black part is a glove base | substrate. Therefore, it can be determined that the greater the proportion of the white part, the greater the adhesive strength. In the table, ◎: very strong, ○: strong, Δ: slightly weak, x: weak.

Texture of flocking gloves:
The quality of the texture when wearing flocking gloves was evaluated.

Tackiness:
A flocked glove was attached, and the change on the transfer sheet surface after touching the transfer sheet (trade name: Clean Transfer Sheet, distributor: Showa Glove Co., Ltd.) for 3 seconds with an index finger was visually evaluated.
As shown in FIG. 2, the case where the transfer sheet surface changed was evaluated as “tackiness”, and the case where the transfer sheet surface did not change was evaluated as “no tackiness”.

Example 1
1: Coagulant, glove base composition liquid, adhesive layer composition liquid and pile for flocking The coagulant shown in Table 1, the glove base composition liquid shown in Table 2, and the adhesive layer composition liquid shown in Table 3 were prepared. Rayon / cotton (70/30, manufactured by Kyoto Pile) was used as a pile for flocking.

2: Manufacturing method (1) A 55 ° C. ceramic hand mold is dipped in a coagulant for 2 seconds and pulled up, and then dried at 55 ° C. for 8 minutes.
(2) Next, the hand mold is immersed in the glove base material mixture solution and pulled up after 105 seconds. After being pulled up, it is dried at 55 ° C. for 4 minutes. After drying, the hand mold is immersed in water at room temperature (20 ° C. to 30 ° C.) and washed with water for 30 minutes. After washing with water, it is dried at 90 ° C. for 3 minutes to dry moisture on the surface of the main body film on the hand mold.
(3) Thereafter, the hand mold is immersed in the adhesive layer mixture solution and pulled up after 60 seconds.
(4) After drying at 50 ° C. for 1 minute, electrostatic flocking is performed.
(5) Thereafter, heat vulcanization is performed by drying at 75 ° C. for 90 minutes and 90 ° C. for 50 minutes. After the vulcanization is completed, the glove is reversely released from the hand mold, washed again with water, and dried to dry the glove. Got.

Example 2
A flocked glove was obtained in the same manner as in Example 1 except that the glove base composition solution in Example 1 was changed to the formulation solution shown in Table 4.

Example 3
Implemented in Example 1 except that the step of “dipping in a glove substrate mixture and elevating after 105 seconds and drying for 4 minutes at 55 ° C.” was added twice before washing with water for 30 minutes (3 times in total). Gloves were obtained in the same manner as in Example 1.

Example 4
A flocking glove was obtained in the same manner as in Example 2 except that the 30-minute water washing step performed in Example 2 was changed to 0 minute.

Example 5
A flocking glove was obtained in the same manner as in Example 2 except that the 30-minute water washing step performed in Example 2 was changed to 10 minutes.

Example 6
A flocking glove was obtained in the same manner as in Example 2 except that the 30-minute water washing step performed in Example 2 was changed to 15 minutes.

Example 7
Flocked gloves were obtained in the same manner as in Example 2 except that the amount of calcium nitrate used as the coagulant in Example 2 was changed to 50 parts by weight.

Example 8
A flocked glove was obtained in the same manner as in Example 1 except that the liquid mixture obtained by removing the paraffin wax from the glove base composition liquid in Example 1 was changed.

Comparative Example 1
Flocked gloves were obtained in the same manner as in Example 1 except that the natural rubber latex MLA21 used in the adhesive layer mixture of Example 1 was changed to acrylic latex (Nipol Lx-854E, manufactured by Nippon Zeon Co., Ltd.).

Comparative Example 2
A flocking glove was obtained in the same manner as in Example 1 except that a blending system in which the nonionic surfactant was removed from the adhesive layer blending liquid of Example 1 was used.

Comparative Example 3
The amount of calcium nitrate used as a coagulant in Comparative Example 1 was changed to 20 parts by weight, and the subsequent step of “soaking in a glove base material mixture and pulling up after 105 seconds” was “soaking in a glove base material mixture and immediately pulling up” A flocked glove was obtained in the same manner as in Comparative Example 1 except that

  About the flocked glove obtained in Examples 1-8 and Comparative Examples 1-3, the physical property and the characteristic were measured or evaluated by the above-mentioned method. The results are shown in Table 5.

From the comparison between Examples 1 to 8 and Comparative Example 2, by containing a nonionic surfactant in the adhesive layer, the formation of the film is delayed and the desired amount of flocking layer is uniformly adhered, and the texture is good. On the other hand, when a nonionic surfactant is not included, the amount of flocking is reduced due to film formation, and a flocking glove having a good texture cannot be obtained.
Moreover, from the comparison with Examples 1-8 and Comparative Example 1, by using a natural rubber adhesive, there is no peeling of the adhesive layer from the glove base, whereas a flocked glove having a good texture is obtained. When an acrylic adhesive is used, peeling of the adhesive layer from the glove base occurs, and a flocking glove having a good texture cannot be obtained.
Further, from comparison between Examples 1 to 8 and Comparative Example 3, natural rubber with insulation is used for the glove base, and natural rubber with insulation is used for the adhesive layer, and the thickness of the glove base is increased. Thus, a flocking glove that does not short-circuit is obtained.
Moreover, from the comparison with Examples 1-7 and Example 8, the flocking glove with which tack property was reduced is obtained by making a glove base | substrate contain a wax.
Furthermore, sufficient adhesive strength between the glove base and the adhesive layer can be obtained from Example 6 in a water washing time of 15 minutes or longer.

  As described above, according to the present invention, since a desired amount of the flocked layer is formed on the inner surface of the glove base body due to the delay of the coating of the adhesive layer, a flocked glove having an excellent feel on the inner surface of the glove is provided. Since natural rubber is used, a flocking glove excellent in voltage resistance is provided at low cost.

Claims (9)

  1. In glove having an inner surface of the glove base body consisting of natural rubber adhesive layer and a flocked layer, flocking glove the adhesive layer and wherein the benzalkonium a natural rubber containing a nonionic surfactant.
  2.   The flocked glove according to claim 1, wherein the glove base contains a wax.
  3.   The flocking glove according to claim 1 or 2, wherein the evaporation residue is 60 µg / ml or less.
  4.   The flocked glove according to any one of claims 1 to 3, wherein a short circuit does not occur even when an AC voltage of 3000 V is applied for 1 minute.
  5.   The flocked glove according to any one of claims 1 to 4, wherein the glove base has a thickness of 0.4 to 1.2 mm.
  6.   A natural rubber compounded liquid is attached to the surface of the hand mold to make it semi-gelled or solidified, washed with water and dried, and then an adhesive layer made of a natural rubber compounded liquid containing a nonionic surfactant is attached to perform flocking processing. A method for producing a flocking glove characterized.
  7.   The method for producing a flocked glove according to claim 6, wherein the glove base contains a wax.
  8.   8. The method for producing flocked gloves according to claim 6 or 7, wherein washing with water is performed for at least 15 minutes.
  9.   The thickness of a glove base | substrate is 0.4-1.2 mm, The manufacturing method of the flocked glove of any one of Claims 6-8 characterized by the above-mentioned.
JP2012037236A 2012-02-23 2012-02-23 Flocking gloves Active JP6072419B2 (en)

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516045A (en) * 1978-07-21 1980-02-04 Japan Synthetic Rubber Co Ltd Latex composition
JPS56869A (en) * 1979-06-15 1981-01-07 Seitetsu Kagaku Co Ltd Vinyl acetate adhesive
US6075081A (en) * 1997-04-23 2000-06-13 Ansell Healthcare Products Inc. Manufacture of rubber articles
JPH11229211A (en) * 1998-02-12 1999-08-24 Sumitomo Rubber Ind Ltd Gloves

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