JPH09316759A - Elastic rubber product and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a long rubber thread product or a rubber tape product having good ribbon processability or slitter cutting properties without peeling from a bonded site even when conveying the product in a tensed state at a high speed, carrying out the weaving, assembling, winding and sewing at a high speed. SOLUTION: Adhesive surfaces having 3-30mm length in a tapered shape or a mutually fitted shape are formed at both ends of plural rubber threads or rubber tapes having 0.15-1.82mm thickness when successively bonding both ends of the plural rubber threads or rubber tapes. The adhesive surface thereof is superposed through an adhesive on adhesive surfaces at ends of other rubber threads or rubber tapes to be connected so as to provide a thickness of <=1.5 times based on that of the rubber threads or rubber tapes and bonded thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic rubber product and a method for producing the same, and in particular, tightening of diapers, napkins, panty liners, or rubber-containing fabrics, rubber strings, coated rubber threads, or clothing such as swimwear and underwear. Is conveyed in a pulled state to a part requiring expansion and contraction elasticity, adhered, crimped or heat-bonded, sewn, inserted,
Alternatively, it relates to a thread rubber product or a rubber tape product suitable for being woven, incorporated and wound with thread-like fibers.

[0002]

2. Description of the Related Art For example, in a paper diaper, a structure for preventing leakage of urine has been adopted by forming a proper tightening portion around the waist or around the leg and forming a stretchable gather along the leg around or around the waist. The elastic gathers at the tightening part and leg part of the body are stretched at a speed of 1.5 to 3.5 times the thread rubber product or rubber tape product and conveyed at high speed to the disposable diaper to form a film or a non-woven cloth of a diaper. It is generally formed by adhering to the above with an adhesive, or by pressure-bonding or heat-sealing, releasing the tension thereof and imparting elastic elasticity for tightening or elastic gather. The same applies to napkins and panty liners.

In addition, a fabric having rubber, a rubber cord, a coated rubber thread, and the like have a structure having appropriate elasticity. The elastic elasticity is such that the thread rubber product is pulled 2.5 times to 6 times and conveyed to a weaving machine, a stringing machine, or a horizontal winding machine to weave, incorporate, or wind the thread-like fiber or the like at a high speed. After that, the tension is released, and the appropriate elastic elasticity necessary for tightening underwear such as pants and trunks and the ankles of socks is given, or hair stops, shock cords, tow ropes, medical manipulative bands, supporters, bandages, etc. For this reason, it is generally formed by imparting an appropriate expansion / contraction elasticity.

In addition, underwear such as underpants and girdles and clothing such as swimsuits are pre-sewn to form a bag-like space at the waist portion (wearing mouth) and hem mouth portion such as feet and wrists, and a rubber tape is provided in the space. Insert the product in a stretched state at a high speed, or directly attach it to a predetermined part of the garment at a high speed by sewing using a sewing thread and sewing needle to give the appropriate elastic elasticity necessary for tightening the garment. It is generally formed.

By the way, paper diapers, napkins, panty liners, woven fabrics with rubber, rubber cords, coated rubber threads, clothes and the like are generally continuously produced in factories, and thread rubber products and rubber tape products are also produced. For continuous production, a long length of at least 1000 m is required. In particular, disposable products such as disposable diapers, napkins, panty liners, etc. are preferred over a long period because they are continuously mass-produced.

Therefore, in the conventional rubber thread products and rubber tape products, the end portions of the rubber sheets are sequentially overlapped and bonded to make a long length, and the long rubber sheet is made into a thread shape or a tape shape having a predetermined width by slitter cutting or the like. It has been practiced to cut and produce long thread rubber products and rubber tape products.

[0007] Although it is very small, some conventional rubber thread products and rubber tape products are formed into a rectangular, round or oval thread or tape by extraction or extrusion, and these rubber threads or The ends of the rubber tapes are stacked one on top of the other to make them longer, or the thread rubbers that have been molded into a round or oval shape by extraction or extrusion are attached in the lengthwise direction to form a tape shape, and the ends of this rubber tape are sequentially It has also been practiced to stack and bond them into a long product to produce a long thread rubber product or rubber tape product.

By the way, regarding the finishing of the thread rubber product and the rubber tape product, the bobbin finish which is wound directly onto the bobbin,
Various finishing methods are used, such as corn finishing that is wound on a corn, festoon finishing that is swung back and forth and left and right in a case, and shredded finishing that is cut to a specified length.

In the processing of rubber thread products and rubber tape products, thread rubbers and rubber tapes that have been cut, or thread rubbers and rubber tapes formed into a thread shape or tape shape by extraction or extrusion are completely separated by applying tension. After that, pressure is applied with an elastic roll such as a rubber roll, and several to several tens of rubber threads or rubber tapes are taken out as one ribbon by the adhesive force of the rubber cutting surface or molding surface, so-called ribbon processing is performed. It is being appreciated.

[0010]

However, when the conventional thread rubber products and rubber tape products are used for the production of disposable diapers, the adhesives are frequently peeled off at the bonding site, leading to cutting, and the operation must be stopped. there were. 2 disposable diapers
This is a product that focuses on production cost and is mass-produced in a four-hour system, and the suspension of operations is a very serious problem.

Even when the adhesive portion does not come off or cut, the adhesive portion is turned over, and the adhesive portion is turned over on the surface of the tightening portion of the paper diaper or the stretchable gather portion. It may become awkward, look bad, or the adhesive may not be applied well to the flipped part, and the thread rubber product or rubber tape product may not be reliably adhered to the paper diaper, causing a problem of adhesion failure. It was In addition, the required elasticity of elasticity cannot be obtained at the bonded portion, which may result in defective products.

The same applies when the thread rubber product or the rubber tape product is used for a napkin, a panty liner or the like, when the thread rubber product is used for a rubber-containing fabric, a rubber string or a coated rubber thread, and when the rubber tape product is used for clothing. There was a problem.

Further, the conventional thread rubber products and rubber tape products have a bad appearance due to the appearance of the step of the bonding portion, and even if the thread rubber products or the rubber tape products are bonded with a film or a non-woven fabric, they are pressure-bonded or heat-bonded. , Weaving thread fibers,
Even if it is incorporated, wrapped, or inserted into woven fabric material, etc. and sewn in, the adhesive part will become a bump,
The current situation is that it leads to poor appearance of the product.

Furthermore, in the case of conventional thread rubber products and rubber tape products, when they are manufactured by slitter cutting, they cannot be cut at the adhesive portion of the rubber sheet, and the speed of slitter cutting is reduced at the adhesive portion to adjust the sharpness, or It was necessary to carry out the work while confirming that the shape or width required was cut, which tended to impair operability.

Further, when ribbon processing is performed, the ribbon is liable to be separated at the bonding portion of the thread rubber or the rubber tape, the pressing force of the elastic roll is increased at the bonding portion, or the progress speed of the ribbon processing is decreased, so that the ribbon is cut midway. There is a problem that it is necessary to make adjustments so that it does not come loose, which impairs operability.

When a rubber thread product or a rubber tape product is cut during manufacture or during use, when cutting cannot be performed during slitter cutting, or when ribbon processing cannot be performed, the ends of the rubber thread and the rubber tape are overlapped. It was necessary to manually bond or tie a knot to restore the long state, which was very complicated. In addition, the cutting here means to produce a rubber thread or a rubber tape by cutting in a lengthwise direction, and the cutting means a disconnection state which is cut in the lateral direction and is no longer in a lengthy state.

In view of the above problems, the present invention does not cause peeling from the bonded portion even when it is conveyed at a high speed in a pulled state or when it is woven, incorporated, wound or sewn at a high speed, and An object of the present invention is to provide elastic rubber products such as rubber thread products and rubber tape products which are capable of good ribbon processing and slitter cutting.

In order to solve the above-mentioned problems, the inventors of the present invention observed the behavior of a thread rubber product or a rubber tape product when it was conveyed in a pulled state, and as a result of various investigations, found that the conventional thread rubber product. In rubber tape products, the adhesion area is twice or more the thickness of other areas, and the elongation of the adhesion area when pulled with a load is small compared to other areas, making it difficult to extend. It was found that an excessive tensile load was partially applied to the bonding site, which caused peeling and further cutting.

More specifically, when the rubber thread product or the rubber tape product shown in FIG. 2 is pulled by the length between the parts 10 and 11, the length of the adhesive surface between the parts 12 and 13 is increased. Is smaller than the elongation between the other parts 10 and 12 and the length between the parts 13 and 11, and is a part of the adhesion part 12 or 13 or a part of the adhesion part having a length between them. Excessively large tensile load acts. At that time, the reduction amount of the thickness of the length portion between the portion 10 and the portion 12 and between the portion 13 and the portion 11 of the rubber thread or the rubber tape is determined by the adhesive portions 12, 1
It is larger than the amount of decrease in thickness between 3 and the difference in thickness increases as a whole, and the difference in thickness increases as the magnitude of the tensile load or the elongation of the rubber thread or the rubber tape itself is greatly extended.

Conventional thread rubber products and rubber tape products are used in the manufacturing process of paper diapers, napkins, panty liners, rubber-containing fabrics, rubber strings, and coated rubber threads, and are attached in a pulled state in a manufacturing machine. Contact with a film or non-woven fabric that should be made at high speed, catching at the step of the adhesion site and causing momentary fluctuation of elongation or fluctuation of tensile load, which also causes peeling or cutting. I came to find out. Furthermore, it was also found that depending on the properties of the object to which the thread rubber product or the rubber tape product is to be adhered, a large amount of electrification due to contact occurs, which amplifies fluctuations in elongation and tensile load. In addition, the change in the instantaneous elongation or the change in the tensile load due to the step of the adhesion site causing the change in the required tensile elongation does not obtain the necessary elastic elasticity because it interferes with the elastic elasticity. I also found that the product was defective.

Further, the cutting blade of the slitter cutting machine is shown in FIG.
There are two types shown in (a) and (b), and both types have the same number of blades combined vertically, and a spacer is interposed between the blades, and the upper blade is pushed into the lower blade to adjust the sharpness. But
It was found that at the adhesion site of the rubber sheet, the upper blade and the lower blade were pressed against each other due to their thickness and could not be cut. This tendency is more likely to occur in the cutting blade shown in Fig. 1 (b). In particular, the cutting blade shown in Fig. 1 (b) has a sharp cutting edge, so the cutting blade is often damaged after being pressed against each other. It becomes necessary to re-sharpen the blade, or when the spacer between the cutting blades is thin, the cutting blade breaks and repair of the slitter cutting device becomes necessary. In addition, if the cutting is not performed, it is necessary to perform bonding or hand knotting at that portion to restore the long state, which causes a serious hindrance to operability.

Therefore, it is proposed that the end portion of the rubber sheet is formed in a taper shape, and the taper surfaces are overlapped and adhered to each other to reduce the thickness step of the adhering portion. A difference may occur depending on the thickness of the rubber sheet, the rubber thread, and the rubber tape to be adhered and adhered, and peeling of the adhered part may still occur.

[0023]

As a result of repeating various experiments, the inventors of the present invention have found that the thickness of the thread rubber product or the rubber tape product itself, the length of the bonding surface and the thickness of the bonding site, and the mutual relationship of the steps are different from each other. It has been found that it is closely related to peeling and cutting, and that such a mutual correlation amplifies the peeling action as the tensile load or elongation in manufacturing and processing the above-mentioned products such as disposable diapers increases. In addition, the mutual relationship between the length of the adhesive surface, the thickness of the adhesive site, and the step of the rubber sheet, rubber thread, and rubber tape itself is closely related to the looseness of ribbon processing and operability, or poor cutting and operability of slitter cutting. In addition, it has been found that the higher the progressing speed during ribbon processing and the faster progressing speed during slitter cutting, the more amplified the loosening and cutting defects.

Therefore, the elastic rubber product according to the present invention is a long thread rubber product or rubber tape product obtained by sequentially adhering both ends of a plurality of thread rubbers or rubber tapes having a predetermined thread shape or tape shape. Adhesive surfaces having a length of 3 mm to 30 mm and having a tapered shape or a fitting shape are formed on both ends of each of a plurality of rubber threads or rubber tapes having a thickness of 15 mm to 1.82 mm, and the adhesive surfaces should be continuous. Through the adhesive surface of the rubber thread or rubber tape end of
In addition, the gist is that they are laminated and adhered so that the thickness is 1.5 times or less the thickness of the rubber thread or the rubber tape.

The thickness of the thread rubber or rubber tape is 0.15 m
The reason for setting m to 1.82 mm is that these are the dimensions generally adopted as the thickness of the thread rubber product or the rubber tape product. Therefore, it is necessary to separately study thread rubber or rubber tape having a thickness other than this.

Here, the shape of the rubber thread product is a thread having a rectangular cross section and a low flatness on both sides of the cross section, a thread having a round or elliptical cross section, and is limited to the shape of the outer surface of the cross section. It is not something that will be done. Further, the shape of the rubber tape product refers to a rectangular shape having a rectangular cross section, a square shape having irregularities or corrugations on the surface, a round cross section, an elliptical shape, or a square shape formed by sticking rubber threads in the longitudinal direction, These shapes are tape-shaped with a high flatness ratio on both sides of the cross section, and are not limited to the surface shape of the cross section.

The range of the length of the adhesive surface is set to 3 mm to 30 mm because of the ambient temperature and humidity, the rubber composition, the rubber physical properties,
This is because the adhesive strength varies depending on the adhesive, the rubber raw material, the manufacturing conditions, and the like. When the lower limit of the adhesive surface length is 3 mm, the adhesive strength is not sufficiently obtained when it is less than 3 mm, and when the upper limit is 30 mm, peeling of the adhesive site due to high-speed transportation in a pulled state changes even if it is longer than 30 mm. This is because the adhesive strength can be secured at 30 mm or less and the work of bonding becomes complicated. Also, if the thickness is 30 mm or more, variations in ribbon processing and cutting defects such as slit cutting are likely to occur depending on the thickness. Also,
When the length is 30 mm or more, the ratio of the bonding site becomes too large for the length of the thread rubber product or the rubber tape product depending on the product manufactured by using the thread rubber product or the rubber tape product, and the thread rubber product. Alternatively, it is not preferable for products using rubber tape products. Specifically, 8 to 25 mm is optimal.

Adhesives and bonding methods include solvent volatilization type and water solvent type natural substances, synthetic resins or elastomers, organic solvent type natural substances, synthetic resins or rubbers, chemical reaction type heating or room temperature curable substances, and heat melting. Types of natural or synthetic materials may be used. Basically, the adhesive strength required for the product and the life of the product Analysis of the stress and deformation on the adhesive surface of the product Polarity of rubber and selection of appropriate adhesive Establishing appropriate surface treatment technology for adherends Consideration for rubber compounding agent No blooming compounding agent Compounding fillers and metal oxides to improve adhesion Adhesive environment clean Adhesion considering uniform application method Preferably.

The present invention relates to a long rubber thread product or rubber tape product obtained by sequentially adhering both ends of a plurality of rubber thread or rubber tapes each having a predetermined thread shape or tape shape.
Adhesive surfaces having a length of 3 to 30 mm and having a tapered shape or a fitting shape are formed on both ends of each of the plurality of rubber threads or rubber tapes having a thickness of 15 mm to 1.82 mm, and the adhesive surfaces should be continuous. The thread rubber and the end surface of the rubber tape are bonded to each other via the adhesive, and the thickness and the thickness of the thread rubber and the rubber tape are overlapped with each other by 1.5 times or less, and are bonded together. The manufacturing conditions such as the type and method are not particularly limited.

The reason why the thickness of the bonded portion is 1.5 times or less the thickness of the thread rubber or the rubber tape is that if the thickness is more than that, the above-mentioned peeling and cutting due to excessive load, catching, electrification, etc. during actual manufacturing. This is because the above problem is remarkable, and it has been found that such a problem hardly occurs when it is 1.5 times or less.

On the other hand, if it is 1.5 times or less, in ribbon processing, the ribbon will not be loosened without adjusting the pressing force of the elastic roll and the progress speed of ribbon processing, resulting in a good ribbon state, and in slitter cutting. This is because it has been found that good cutting can be performed without lowering the cutting progress speed or adjusting the sharpness by further pushing the upper blade into the lower blade.

This is also because even if the bonded portion does not peel off and cut, the above-mentioned problem does not occur if the thickness is 1.5 times or less.

According to the present invention, a plurality of rubber threads having a predetermined thread shape or tape shape, and a long rubber thread product or rubber tape product obtained by sequentially adhering both ends of a rubber tape are used.
Adhesive surfaces having a taper shape or a fitting shape with a length of 3 to 30 mm are formed at both ends of each of the plurality of rubber threads or rubber tapes having a thickness of mm to 1.82 mm, and the adhesive surfaces should be continuous. The thread rubber and the end surface of the rubber tape are adhered to each other through the adhesive, and the thickness and the thickness of the thread rubber or the rubber tape are 1.5 times or less. The method, slitter cutting method, or manufacturing conditions are not particularly limited.

When the rubber thread product or the rubber tape product is used for a paper diaper, a napkin, and a panty liner, the thickness of the bonding portion is 1.5 times the thickness of the rubber thread or the rubber tape.
The length may be 3 times or less, and the length of the adhesive surface may be 3 to 20 mm. Generally, the product itself is designed to be compact and thin, and elastic rubber is formed using a thin thread rubber product or rubber tape product having a thickness of 0.15 to 0.40 mm. It is also possible to reduce the absolute amount of the thickness of the overlapped adhesive portion. The same applies to the aforementioned charging.

Since the products such as the above-mentioned paper diapers themselves touch the skin of sensitive parts of the elderly, sick, infants and women, the elastic elasticity of the tightening part or the elastic gather part is designed to be soft and soft. In addition, it is preferred that most products are manufactured and processed with a small tensile force, and that the elastic elasticity is reduced to form the tightening portion or the elastic gather portion softly and softly. Therefore, by using a thread rubber product or rubber tape product with 1.5 to 3.5 times the tension with a small pull, the minimum required adhesive strength is obtained by using a small or large length of the adhesive surface of the overlapping adhesive site. The above-mentioned fluctuation is less likely to occur when the adhesive strength is limited to the limit and the thickness is 1.5 times or less. The length may be 3 to 20 mm.

When the rubber thread product is used in the elastic portion of the rubber-containing fabric, the rubber cord, or the coated rubber thread, the thickness of the bonding portion is preferably 1.3 times or less the thickness of the rubber thread. Further, the length of the adhesive surface is preferably 8 to 30 mm. Generally, products such as the above-described rubber-containing woven fabrics are made to have elastic elasticity by using thick thread rubber products having a thickness of 0.41 to 1.82 mm.
The absolute amount of the thickness of the overlapped adhesion part is large, 1.3
If it exceeds 2 times, the above-mentioned problem is likely to occur, so 1.3 times or less is preferable. The same applies to the above-mentioned charging.

In addition, the products such as the above-described rubber-filled fabric and the like are elastic and elastic for fastening underwear such as pants and trunks and socks such as ankles, hair stoppers, shock cords, traction ropes, medical manipulative bands. Since it is used to provide stretch elasticity for supporters, bandages, etc., it is preferred that most products are manufactured and processed with a large tensile force to form a large stretch elasticity. Therefore, by using a thread rubber product having a tensile strength of 2.5 to 6 times, the minimum necessary adhesive strength of the adhesive strength obtained by increasing or decreasing the length of the bonding surface of the overlapping bonding site is large. Since the above-mentioned fluctuation is less likely to occur by setting the above-mentioned 1.3 times or less, although the minimum necessary bonding strength of the bonding strength against this fluctuation is small, the length of the bonding surface is 8 to 3
0 mm is preferred.

For a rubber tape product used for an elastic portion of clothing such as underwear and swimwear, the thickness of the adhesive portion may be 1.5 times or less the thickness of the rubber tape. Further, the length of the adhesive surface may be 3 to 20 mm. Generally, the product itself is designed to be soft and thin, and has a thickness of 0.25.
Elastic rubber is formed by using a rubber tape product having a relatively thin thickness of about 0.80 mm, and since the absolute amount of the thickness of the bonding portion of the overlapping can be relatively small, it may be 1.5 times or less. The same applies to the above-mentioned charging.

Further, since the products such as the above-mentioned clothes themselves are products that come into direct contact with the skin, the elastic elasticity of the tightened portion is soft, and since the soft design is adopted, most of the products are manufactured with less pulling force. Therefore, it is preferable that the expansion and contraction elasticity is reduced to make the tightening portion soft and soft. Therefore, by using a rubber tape product with 1.5 to 2.9 times less tension, the minimum required adhesive strength of the adhesive strength obtained by reducing or increasing the length of the adhesive surface of the overlapping adhesive site. Is small, and the above 1.
Since the above-mentioned fluctuation is less likely to occur when it is set to 5 times or less, the length of the bonding surface is 3 to 20 mm by reducing the minimum necessary bonding strength for the fluctuation.
It doesn't matter.

The rubber thread or rubber tape is required to have a high elongation, although the required performance varies depending on the intended use.
High elasticity is a basic condition, and the rubber thread or rubber tape of the present invention has a tensile strength of 150 kgf / cm ² or more and an elongation of 60.
0% or more, 300% tensile stress 10.5kgf / c
A stretch elasticity of m ² or more is preferable.

Further, the rubber thread or the rubber tape is excellent in properties such as impact resilience or less distortion, good dimensional stability, low specific gravity, difficult to cut, and low cost due to the characteristics of the above-mentioned products. As desired, it is preferred to produce the thread rubber product or rubber tape of the present invention using a rubber composition having a cis 1-4 isoprene main structure suitable for it.

As the natural rubber and the synthetic natural rubber having the cis 1-4 polyisoprene main structure, different polymer shapes such as solid, liquid or powder can be used depending on the molding method. As a method for molding the rubber composition, extrusion, extraction, dipping, die molding, or rolling method may be used.

Rubber compositions other than natural rubber and synthetic natural rubber include styrene butadiene rubber, butadiene rubber, chloroprene acrylo rubber, nitrile butadiene rubber, butyl rubber, ethylene polypropylene rubber, urethane rubber, silicone rubber, fluorine rubber, hypalon, Chlorinated polyethylene, acrylic rubber, epichlorohydrin rubber, polyvulcanized rubber and the like may also be used. Further, at least one kind of all of the above rubber compositions may be mixed and used. However, in mixing, it is necessary to use in consideration of the state of mixing. In addition, it may be used separately depending on the application of the product used. Even with the above rubber composition, the same polymer shape and the same molding method may be used.

Environment such as ultraviolet rays and NO _x gas and rubber compounded with thread rubber or rubber tape itself, vulcanization density, woven, incorporated, wound thread-like fiber, etc., film or non-woven cloth, sewing thread or woven raw material, etc. Due to the interaction of various processing chemicals of the substance with the substance, it is preferable to prevent discoloration of the fiber or the object in the part where the thread rubber and the rubber tape are used, and it is preferable to prevent this, such as phenol type and benzimidazole type. Among them, it is preferable to produce the rubber thread and the rubber tape of the present invention by using an anti-aging agent such as a non-staining fiber or a wax.

The taper shape of the adhesive surface means that the end portions of the elastic rubber are simply formed obliquely as shown in FIG. 3 (a), and the fitting shape of the adhesive surface means the shape of (b) in FIG. ) To (d) means that the ends to be bonded are formed in a mutually fitting shape. The bonding surface can be processed by grinding using a grindstone or a cloth.

[0046]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on specific examples.

[0047]

Example 1 Twenty rubber threads each having a thickness of 0.15 mm, a width of 0.30 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m. At that time, the length of the adhesive surface is 30 mm, 20 m
m, 7 mm, and a step difference of 0.075 for each length of each adhesive surface
mm thickness 1.5 times (1.4 to 1.5 times) the thickness of the bonded area,
With a step of 0.045 mm, the thickness of the bonded part is 1.3 times (1-
A total of 6 thread rubber products each having a length of 1.3 times) were manufactured.

[0048]

[Comparative Example 1] The thickness of the bonded portion is 2.0 with a step of 0.15 mm.
Under the same conditions as in Example 1, except that the length was doubled (1.6 to 2.0 times), three thread rubber products having adhesive surface lengths of 30 mm, 20 mm, and 7 mm were manufactured.

[0049]

[Comparative Example 2] Under the same conditions as in Example 1 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.15 mm. When the thickness is 0.075 mm, the thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and when the step is 0.045 mm, the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
3) rubber products were produced.

[0050]

Example 2 Six rubber tape products were manufactured under the same conditions as in Example 1 except that a rubber tape having a thickness of 0.15 mm, a width of 17.00 mm and a length of 100 m was used.

[0051]

[Comparative Example 3] The thickness of the bonded portion is 2.0 with a step of 0.15 mm.
Three rubber tape products having adhesive surface lengths of 30 mm, 20 mm, and 7 mm were manufactured under the same conditions as in Example 2 except that the length was doubled (1.6 to 2.0 times).

[0052]

[Comparative Example 4] Under the same conditions as in Example 2 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.15 mm. When the thickness is 0.075 mm, the thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and when the step is 0.045 mm, the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
3 times) was produced.

[0053]

Example 3 Twenty rubber threads having a thickness of 0.40 mm, a width of 0.30 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m. At that time, the length of the adhesive surface is 30 mm, 20 m
m, 7 mm, and a step difference of 0.20 m for each length of each adhesive surface
When the thickness is m, the thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and when the step is 0.12 mm, the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
In total, 6 thread rubber products were manufactured.

[0054]

[Comparative Example 5] The thickness of the bonded portion is 2.0 with a step difference of 0.40 mm.
Three thread rubber products having adhesive surface lengths of 30 mm, 20 mm, and 7 mm were manufactured under the same conditions as in Example 3 except that the length was doubled (1.6 to 2.0 times).

[0055]

[Comparative Example 6] Under the same conditions as in Example 3 except that the length of the adhesive surface was set to 2 mm, the thickness of the adhesive portion was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.40 mm. At 0.20 mm, the thickness of the adhesion site is 1.5 times (1.4 to 1.5 times), and the step is 0.
Three thread rubber products having a thickness of 12 mm and a thickness of an adhesion site of 1.3 times (1 to 1.3 times) were manufactured.

[0056]

Example 4 Six rubber tape products were manufactured under the same conditions as in Example 3 except that a rubber tape having a thickness of 0.40 mm, a width of 17.00 mm and a length of 100 m was used.

[0057]

[Comparative Example 7] The thickness of the bonded portion is 2.0 with a step of 0.40 mm.
Three rubber tape products having adhesive surface lengths of 30 mm, 20 mm, and 7 mm were manufactured under the same conditions as in Example 4 except that the length was doubled (1.6 to 2.0 times).

[0058]

[Comparative Example 8] Under the same conditions as in Example 4 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.40 mm. At 0.20 mm, the thickness of the adhesion site is 1.5 times (1.4 to 1.5 times), and the step is 0.
Three rubber tape products having a thickness of 12 mm and an adhesion site having a thickness of 1.3 times (1 to 1.3 times) were manufactured.

[0059]

Example 5 Twenty rubber threads having a center diameter of 0.38 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m. At that time, the length of the adhesive surface is set to 30 mm, 20 mm, and 7 mm, and the step height is 0.19 mm and the thickness of the adhesive portion is 1.5 times (1.4 to 1.5 times) the step for each adhesive surface length. 0.114
A total of 6 thread rubber products were manufactured in which the thickness of the adhesion site was 1.3 times (1 to 1.3 times) in mm.

[0060]

[Comparative Example 9] The thickness of the bonded portion is 2.0 with a step of 0.38 mm.
Three thread rubber products having adhesive surface lengths of 30 mm, 20 mm, and 7 mm were manufactured under the same conditions as in Example 5 except that the length was doubled (1.6 to 2.0 times).

[0061]

[Comparative Example 10] Under the same conditions as in Example 5 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.38 mm. When the thickness is 0.19 mm, the thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and when the step is 0.114 mm, the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
3) rubber products were produced.

[0062]

Example 6 Twenty rubber threads having a center diameter of 0.68 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m. At that time, the lengths of the bonding surfaces were 30 mm, 20 mm, and 7 mm, and the step thickness was 0.34 mm and the thickness of the bonding portion was 1.5 times (1.4 to 1.5 times) the height of each bonding surface. 0.204
A total of 6 thread rubber products were manufactured in which the thickness of the adhesion site was 1.3 times (1 to 1.3 times) in mm.

[0068]

[Comparative example 11] The thickness of the bonded portion is 0.68 mm and the thickness is 2.
Under the same conditions as in Example 6, except that the length was 0 times (1.6 to 2.0 times), the length of the adhesive surface was 30 mm, 20 mm, and 7 mm.
Three thread rubber products were manufactured.

[0069]

[Comparative Example 12] Under the same conditions as in Example 6 except that the length of the bonding surface was set to 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) and the level difference was 0.68 mm. When the thickness is 0.34 mm, the thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and when the step is 0.204 mm, the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
3) rubber products were produced.

[0070]

Example 7 Twenty rubber tapes each having a thickness of 0.25 mm, a width of 3.00 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a 2000 m rubber tape product. At that time, the length of the adhesive surface is 30m
m, 20 mm, 7 mm, and a step height of 0.125 mm and a thickness 1.5 times (1.4 to 1.4
1.5 times), with a step of 0.075 mm and a thickness of the adhesion site of 1.
A total of 6 rubber tape products that were tripled (1-1.3 times) were manufactured.

[0071]

[Comparative Example 13] The thickness of the bonded portion is 2. with a step of 0.25 mm.
The length of the adhesive surface is 30 mm, 20 mm, and 7 mm under the same conditions as in Example 7 except that the length is 0 times (1.6 to 2.0 times).
The following three rubber tape products were manufactured.

[0072]

[Comparative Example 14] Under the same conditions as in Example 7, except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.25 mm. 0.125 mm
The thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and the thickness of the adhesion part is 1.3 times (1 to 1.3 times) with a step of 0.075 mm.
3 times) was produced.

[0073]

Example 8 Six rubber tape products were manufactured under the same conditions as in Example 7 except that a rubber tape having a thickness of 0.25 mm and a width of 45.00 mm was used.

[0074]

[Comparative Example 15] The thickness of the bonding site with a step of 0.25 mm 2.
The length of the adhesive surface was 30 mm, 20 mm, and 7 mm under the same conditions as in Example 8 except that it was 0 times (1.6 to 2.0 times).
The following three rubber tape products were manufactured.

[0075]

[Comparative Example 16] Under the same conditions as in Example 8 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.25 mm. 0.125 mm
The thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and the thickness of the adhesion part is 1.3 times (1 to 1.3 times) with a step of 0.075 mm.
3 times) was produced.

[0076]

Example 9 Twenty rubber tapes having a thickness of 0.80 mm, a width of 3.00 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a 2000 m rubber tape product. At that time, the length of the adhesive surface is 30m
m, 20 mm, and 7 mm, and a step difference of 0.40 mm and a thickness of the adhesion site 1.5 times (1.4 to 1.
5 times), and a total of 6 rubber tape products were manufactured with a step difference of 0.24 mm and a thickness of the adhesion site of 1.3 times (1 to 1.3 times).

[0077]

[Comparative Example 17] The thickness of the bonded portion is 0.80 mm in step difference and 2.
The length of the adhesive surface was 30 mm, 20 mm, and 7 mm under the same conditions as in Example 9 except that it was 0 times (1.6 to 2.0 times).
The following three rubber tape products were manufactured.

[0078]

[Comparative Example 18] Under the same conditions as in Example 9 except that the length of the adhesive surface was 2 mm, the thickness of the adhesive portion was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.80 mm. At 0.40 mm, the thickness of the bonded part is 1.5 times (1.4 to 1.5 times), and at the step of 0.24 mm, the thickness of the bonded part is 1.3 times (1 to 1.3 times).
3 times) was produced.

[0079]

[Embodiment 10] Thickness 0.80 mm, width 45.00 mm,
Six rubber tape products were manufactured under the same conditions as in Example 9 except that a rubber tape having a length of 100 m was used.

[0080]

[Comparative Example 19] The thickness of the bonded portion is 0.80 mm in step difference and 2.
Under the same conditions as in Example 10, except that the length was 0 times (1.6 to 2.0 times), the length of the adhesive surface was 30 mm, 20 mm, and 7 m.
m rubber tape products were manufactured.

[0081]

[Comparative Example 20] Under the same conditions as in Example 10 except that the length of the adhesive surface was 2 mm, the thickness of the adhesive site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.80 mm. 0.40 mm
The thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and the step thickness is 0.24 mm, and the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
3 times) was produced.

[0082]

[Embodiment 11] Twenty rubber threads having a thickness of 0.41 mm, a width of 0.30 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to produce a rubber thread product of 2000 m. At that time, the length of the adhesive surface is 30 mm, 20
mm, 7 mm, and a step difference of 0.20 for each length of each adhesive surface
1.5mm thicker at 5mm (1.4-1.5)
6 times), and a total of 6 thread rubber products having a step height of 0.123 mm and a thickness of an adhesion site 1.3 times (1-1.3 times) were manufactured.

[0083]

[Comparative Example 21] The thickness of the bonded portion is 0.41 mm in step difference and 2.
Under the same conditions as in Example 11, except that the length was 0 times (1.6 to 2.0 times), the length of the adhesive surface was 30 mm, 20 mm, and 7 m.
m, three thread rubber products were manufactured.

[0084]

[Comparative Example 22] Under the same conditions as in Example 11 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step difference of 0.41 mm. 0.205m
m is 1.5 times as thick as the adhesion site (1.4 to 1.5 times), and 0.123 mm in level is 1.3 times as thick as the adhesion site (1 to 1.
(3 times), and three thread rubber products were manufactured.

[0085]

Example 12 Twenty rubber threads each having a thickness of 1.82 mm, a width of 2.10 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m. At that time, the length of the adhesive surface is 30 mm, 20
mm, 7 mm, and a step difference of 0.91 for each length of each adhesive surface
mm thickness 1.5 times (1.4 to 1.5 times) the thickness of the bonded area,
With a step of 0.546 mm, the thickness of the bonded part is 1.3 times (1-
A total of 6 thread rubber products each having a length of 1.3 times) were manufactured.

[0086]

[Comparative Example 23] 1.82 mm difference in height and thickness of adhesion site 2.
The length of the adhesive surface was 30 mm, 20 mm, and 7 m under the same conditions as in Example 12 except that the length was 0 times (1.6 to 2.0 times).
m, three thread rubber products were manufactured.

[0087]

[Comparative Example 24] Under the same conditions as in Example 12 except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at 1.82 mm. 0.91 mm
The thickness of the adhesion part is 1.5 times (1.4 to 1.5 times), and the step thickness is 0.546 mm, and the thickness of the adhesion part is 1.3 times (1 to 1.3 times).
3) rubber products were produced.

[0088]

Example 13 Twenty rubber threads having a center diameter of 0.45 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m.
At that time, the lengths of the bonding surfaces were 30 mm, 20 mm, and 7 mm, and the step height was 0.225 mm and the thickness of the bonding portion was 1.5 times (1.4 to 1.5 times) the height of each bonding surface. 0.13
A total of 6 thread rubber products having a thickness of 5 mm and a thickness of the bonded portion being 1.3 times (1 to 1.3 times) were manufactured.

[0089]

[Comparative Example 25] The thickness of the bonded portion is 0.45 mm in step difference and 2.
Under the same conditions as in Example 13, except that the length was 0 times (1.6 to 2.0 times), the length of the adhesive surface was 30 mm, 20 mm, and 7 m.
m, three thread rubber products were manufactured.

[0090]

[Comparative Example 26] Under the same conditions as in Example 13, except that the length of the bonding surface was 2 mm, the thickness of the bonding site was 2.0 times (1.6 to 2.0 times) the level difference at a step of 0.45 mm. 0.225m
m is 1.5 times as thick as the adhesion site (1.4 to 1.5 times), and 0.135 mm in level is 1.3 times as thick as the adhesion site (1-1.
(3 times), and three thread rubber products were manufactured.

[0091]

Example 14 Twenty rubber threads having a center diameter of 1.42 mm and a length of 100 m were used, taper surfaces were formed at both ends, and the taper surfaces were overlapped to manufacture a rubber thread product of 2000 m.
At that time, the lengths of the bonding surfaces were 30 mm, 20 mm, and 7 mm, and the thickness of the bonding portion was 1.5 times (1.4 to 1.5 times) at the level of 0.71 mm for each length of each bonding surface. 0.426
A total of 6 thread rubber products were manufactured in which the thickness of the adhesion site was 1.3 times (1 to 1.3 times) in mm.

[0091]

[Comparative Example 27] The thickness of the bonded portion was 1.42 mm and the thickness was 2.
The length of the adhesive surface was 30 mm, 20 mm, and 7 m under the same conditions as in Example 14 except that the length was 0 times (1.6 to 2.0 times).
m, three thread rubber products were manufactured.

[0092]

[Comparative Example 28] Under the same conditions as in Example 14 except that the length of the adhesive surface was 2 mm, the thickness of the adhesive portion was 2.0 times (1.6 to 2.0 times) the level difference of 1.42 mm. 0.71 mm
The thickness of the adhesive part is 1.5 times (1.4 to 1.5 times), and the thickness of the adhesion part is 1.3 times (1 to 1.3 times) with a step of 0.426 mm.
3) rubber products were produced.

[0093]

TEST EXAMPLE 1 The thread rubber products or rubber tape products of Example 1 and its corresponding Comparative Examples 1 and 2 to Example 6 and its corresponding Comparative Examples 11 and 12 were pulled 1.5 times and 3.5 times. In this state, it was applied to a paper diaper making machine and the state of peeling and cutting was examined. The results of Example 1 and Comparative Examples 1 and 2 are shown in Table 1.
Table 2 shows the results of Example 2 and Comparative Examples 3 and 4, Table 3 shows the results of Example 3 and Comparative Examples 5 and 6, Table 4 shows the results of Example 4 and Comparative Examples 7 and 8. The results of 5 and Comparative Examples 9 and 10 are shown in Table 5, and the results of Example 6 and Comparative Examples 11 and 12 are shown in Table 6. In addition, in the table, AA has a large amount of peeling and cutting, AB has a large amount of peeling but a little cutting, AC has a large amount of peeling but no cutting, and BC has a small amount of peeling and no cutting,
CC indicates that neither peeling nor cutting occurred. Moreover, "a little peeling" means that peeling occurred at 1 to 9 out of 20 bonding sites, and "a lot of peeling" means 10 to 20.
It means that peeling occurred at a location, "cutting a little" means that the cutting occurred at 1 to 9 locations out of 20 bonding sites, and "cutting a lot" means cutting at 10 to 20 locations. It means that it has occurred.

[0094]

[Table 1]

[0095]

[Table 2]

[0096]

[Table 3]

[0097]

[Table 4]

[0098]

[Table 5]

[0099]

[Table 6]

[0100]

TEST EXAMPLE 2 Example 7 and its corresponding Comparative Examples 13 and 14
The rubber tape products of Example 10 and the corresponding Comparative Examples 19 and 20 were applied to a swimsuit sewing machine in a state of being pulled 1.5 times and 2.9 times, and the state of peeling and cutting was examined. The results of Example 7 and Comparative Examples 13 and 14 are shown in Table 7 and Example 8
The results of Comparative Examples 15 and 16 are shown in Table 8, the results of Example 9 and Comparative Examples 17 and 18 are shown in Table 9, and the results of Example 10 and Comparative Examples 19 and 20 are shown in Table 10. The conditions of “peeling” and “cutting” are the same as in Test Example 1.

[0101]

[Table 7]

[0102]

[Table 8]

[0103]

[Table 9]

[0104]

[Table 10]

[0105]

TEST EXAMPLE 3 Example 11 and its corresponding comparative examples 21, 2
The thread rubber products of 2 to Example 14 and the corresponding Comparative Examples 27 and 28 were applied to a cording machine in a state of being pulled 2.5 times and 6.0 times, and the state of peeling and cutting was examined. Example 1
The results of Example 1 and Comparative Examples 21 and 22 are shown in Table 11 and Example 12
The results of Comparative Examples 23 and 24 are shown in Table 12, the results of Example 13 and Comparative Examples 25 and 26 are shown in Table 13, and the results of Example 14 and Comparative Examples 27 and 28 are shown in Table 14. The conditions of “peeling” and “cutting” are the same as in Test Example 1.

[0106]

[Table 11]

[0107]

[Table 12]

[0108]

[Table 13]

[0109]

[Table 14]

[0110]

[Test Example 4] The cuttability of the thread rubber products or rubber tape products of Example 1 and its corresponding Comparative Examples 1 and 2 to Example 14 and its corresponding Comparative Examples 27 and 28 by slitter cutting and The damage of the cutting blade and the variability during ribbon processing were examined. The results are shown in Tables 15 to 29.
Shown in In the table, D is uneven, E is not uneven, F is no cutting failure, G is cutting failure, H is cutting blade damage,
Represents In addition, Example 5 and its corresponding Comparative Examples 9 and 1
0, Example 6 and its corresponding Comparative Examples 11 and 12, Example 13 and its corresponding Comparative Examples 25 and 26, and Example 14 and its corresponding Comparative Examples 27 and 28 were formed by slitter cutting. Only ribbon processability was tested as there is no. The ribbon processing and slitter cutting speed were kept constant at 20 m / min, and the elastic roll pressure was also kept constant. The variability of the ribbon processing means that it is not sticky at all due to the cutting surface of the rubber or the adhesive force of the molding surface, it is not stuck in some places in the longitudinal direction, it is stuck but it is twisted or misaligned. The state of being stuck. Further, the poor cutting of the slitter, a state that can not be cut at all, can be cut, but not cut into the required shape or width, the sharpness becomes poor,
A state in which the cut surface is torn off.

[0111]

[Table 15]

[0112]

[Table 16]

[0113]

[Table 17]

[0114]

[Table 18]

[0115]

[Table 19]

[0116]

[Table 20]

[0117]

[Table 21]

[0118]

[Table 22]

[0119]

[Table 23]

[0120]

[Table 24]

[0121]

[Table 25]

[0122]

[Table 26]

[0123]

[Table 27]

[0124]

[Table 28]

[Brief description of drawings]

FIG. 1 is a diagram for explaining a problem to be solved by the invention.

FIG. 2 is a diagram for explaining a problem to be solved by the invention.

FIG. 3 is a diagram for explaining means for solving the problem.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location // B29C 65/48 A41B 13/02 T B29K 21:00 B29L 7:00

Claims (10)

[Claims] 1. Thickness of 0.15-0.40 mm and 0.3
A long thread rubber product or rubber tape product obtained by sequentially adhering both ends of a plurality of thread rubbers or tapes each having a width of 0 to 17 mm and having a thread shape or a tape shape. 3.0-20.0m on both ends
A taper-shaped or fitting-shaped adhesive surface having a length of m is formed, and the adhesive surface is connected to the adhesive surface at the end of another rubber thread or rubber tape through an adhesive and the thickness of the rubber thread or rubber tape. Of which the thickness is not more than 1.5 times, and they are laminated and adhered, and are conveyed in a state of being pulled 1.5 to 3.5 times and adhered, pressure-bonded or heat-bonded to an object, and the tension is An elastic rubber product suitable for paper diapers, napkins or panty liners that is released to form a stretch elasticity of 1.5 to 3.5 times. 2. A long rubber thread product obtained by sequentially adhering both ends of a plurality of thread rubbers each having a center diameter of 0.38 to 0.68 mm and having a thickness, and both ends of each of the plurality of rubber threads. An adhesive surface having a length of 3.0 to 20.0 mm and having a tapered shape or a fitting shape is formed in the portion, and the adhesive surface is bonded to the adhesive surface of another thread rubber end portion to be continuous and via an adhesive. The rubber thread is laminated and adhered to have a thickness of 1.5 times or less the thickness of the rubber thread, and is conveyed in a state of being pulled 1.5 to 3.5 times and adhered, pressure-bonded or heat-bonded to an object. An elastic rubber product suitable for a paper diaper, napkin or panty liner, whose tension is released to form a stretch elasticity of 1.5 to 3.5 times. 3. Thickness of 0.25 to 0.80 mm and 3.0
A long rubber tape product in which both ends of a plurality of tape-shaped rubber tapes each having a width of ˜45 mm are sequentially bonded, and 3.0 to 2 are provided at both ends of each rubber tape.
A taper or mating adhesive surface with a length of 0.0 mm is formed, and the adhesive surface should be continuous with the adhesive surface of the other rubber tape end through an adhesive and 1.5 times the thickness of the rubber tape. It is laminated and adhered to have the following thickness, and inserted into the bag-shaped portion of the clothing in a state of being pulled 1.5 to 2.9 times or sewn directly to a predetermined portion of the clothing, and the pulling Is released and 1.5 to 2.9
An elastic rubber product suitable for clothing that has twice the stretch elasticity. 4. Thickness of 0.41 to 1.82 mm and 0.3
A long thread rubber product in which both ends of a plurality of thread rubbers each having a thread shape having a width of 0 to 2.10 mm are sequentially bonded, and each end of each of the plurality of thread rubbers has a value of 8.0 to 8.0. 30.0 mm
Taper-shaped or mating-shaped adhesive surface is formed with the length of, and the adhesive surface must be continuous with another adhesive surface of the end of the rubber thread through the adhesive and 1.3 times or less of the thickness of the rubber thread. 1. Overlapped and bonded to have the thickness of 2.
A rubberized woven fabric in which the fibrous fibrous material is woven, incorporated or wound under a tension of 5 to 6.0 times, and the tension is released to form a stretch elasticity of 2.5 to 6.0 times, An elastic rubber product suitable for the elastic portion of a rubber cord or coated rubber thread. 5. A long thread rubber product obtained by sequentially adhering both ends of a plurality of thread rubbers each having a center diameter of 0.45 to 1.42 mm and having a thickness, and both ends of each of the plurality of thread rubbers. An adhesive surface having a length of 8.0 to 30.0 mm and having a taper shape or a fitting shape is formed on the portion, and the adhesive surface is bonded to the adhesive surface of another thread rubber end portion to be continuous and via an adhesive. The rubber thread is laminated and adhered so as to have a thickness of 1.3 times or less the thickness of the rubber thread, and the filamentous fiber material is woven, incorporated or wound in a state of being pulled 2.5 to 6.0 times. An elastic rubber product suitable for an elastic portion of a rubber-containing woven fabric, a rubber cord, or a coated rubber thread, the tension of which is released to form a stretch elasticity of 2.5 to 6.0 times. 6. Tensile strength of 150 kgf / cm ² or more, elongation of 600% or more, 300% tensile stress of 10.5 kgf / cm
The elastic rubber product according to any one of claims 1 to 5, which has a stretch elasticity of ² or more. 7. The elastic rubber product according to claim 1, which is produced by using a rubber composition having a cis 1-4 isoprene main structure. 8. The elastic rubber according to claim 1, which is produced by using a stain-free anti-aging agent or an anti-aging agent such as waxes with respect to phenol-based or benzimidazole-based fibers. Product. 9. The elastic rubber according to claim 1, wherein several to several tens of the thread rubbers or rubber tapes are formed into one ribbon by the adhesive force of the cut surface or molding surface of the rubber. Product. 10. A thickness of 0.15 mm to 1.82 mm,
A step of forming an adhesive surface having a taper shape or a fitting shape with a length of 3 mm to 30 mm in the entire width direction at the end portion of each of the plurality of rubber sheets having a width of 5 mm to 900 mm by scraping; The step of adhering the other rubber sheet to be continuous with the adhesive surface of the end of the other rubber sheet through the adhesive so that the thickness is 1.5 times or less the thickness of the rubber sheet, and the slitting of the adhered rubber sheet. A method for producing an elastic rubber product, characterized in that a long thread rubber product or a rubber tape product is manufactured by cutting into a thread or tape having a predetermined width.