JPH0748706Y2 - Rubber roll for improving the texture of cloth - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a rubber roll for improving the feel of a cloth such as a knitted fabric or a nonwoven fabric, or a film.

[Prior art]

Conventionally, as a texture improving device, a sanforize processing machine, a cam fitting processing machine, a calendar processing machine, etc. have been known. Sanforize processing machines and cam fit processing machines are configured so that a rotating rubber belt is stretched when passing the outer peripheral surface of a pressure roll and relaxed when passing the outer peripheral surface of a large-diameter main drum. Is. These are intended to improve the feel of the cloth by changing the pressing force against the cloth by utilizing the expansion and contraction of the rubber belt. However, since the sanforizing machine and the like are provided with a large-diameter main drum and further with a rubber belt surrounding the outer peripheral surface of the main drum, there is a drawback that the device becomes large and the installation space becomes large. In addition, the price of these devices is relatively high. On the other hand, as a calendar processing machine, a roll calendar,
Friction calendars, Schleiner calendars, felt calendars, etc. are known. These devices are
Two to ten or more metal rolls, cotton rolls, paper rolls, and the like are combined, and a cloth is introduced between these rolls for processing. The calendering machine has a relatively small installation space, is low in price, and can impart a unique texture to the fabric. However, since the outer peripheral surface of these calender rolls is made of a single material, there is a drawback in that the kneading effect cannot be given to the cloth and it is difficult to give a soft texture.

[Problems to be solved by the device]

Therefore, the present invention uses a roll whose outer peripheral surfaces are formed of rubbers of different materials, and processes a cloth or the like according to the same specifications as those of a calendering machine, so that the cloth can be simply and inexpensively manufactured. It is intended to give a soft texture by giving a sufficient rubbing effect to etc.

[Means for Solving the Problems]

That is, according to the present invention, the outer peripheral surface of the roll is composed of hard rubber and soft rubber, and the hardness difference between the hard rubber and the soft rubber is 20 to 70 (however, the measuring method of rubber hardness is JIS K 6301A). The present invention relates to a rubber roll for improving a feeling of a cloth or the like, which is characterized by being a mold. Hereinafter, the present invention will be described with reference to the drawings. The outer peripheral surface of the rubber roll according to the present invention is composed of hard rubber (1) and soft rubber (2). As a way of arranging the hard rubber (1) and the soft rubber (2), the hard rubber (1) and the soft rubber (2) may be alternately arranged in the roll axial direction as shown in FIG. However, as shown in FIG. 2, hard rubber (1) and soft rubber (2) may be arranged alternately in the direction perpendicular to the roll axis. Further, as shown in FIG. 3, hard rubber (1) and soft rubber (2) may be alternately arranged in the oblique direction of the roll shaft. Further, although not shown, even if the soft rubber (2) pieces are arranged in a fixed pattern such as a staggered pattern, a scattered pattern, a lattice pattern, and a V-shaped pattern, the ground is made of hard rubber (1). Good. Also, the ground is soft rubber (1)
Alternatively, the hard rubber (1) pieces may be arranged in a fixed pattern. When the hard rubber (1) and the soft rubber (2) are alternately arranged as shown in FIGS. 1 to 3, the width of the strip-shaped hard rubber (1) or the width of the soft rubber (2) is 0.3 to 10 cm. Is more preferable, and 0.5 to 3 cm is particularly preferable. If the width of the strip-shaped hard rubber (1) or the width of the soft rubber (2) is less than 0.3 cm, the kneading effect on the cloth or the like tends to be lowered. Further, if it exceeds 10 cm, processing wrinkles may occur on the fabric or the like. The hardness difference between the hard rubber (1) and the soft rubber (2) is 20 to 70.
Is. Here, the hardness of the rubber is measured by JIS K 6301A type. When the hardness difference between the hard rubber (1) and the soft rubber (2) is less than 20, there is not much difference in pressing force against the cloth or the like, and a sufficient kneading effect cannot be given to the cloth or the like. Further, if the hardness difference exceeds 70, the pressing force against the cloth or the like may be too different, which may cause wrinkles on the cloth or the like, which is not preferable. The hardness of the hard rubber (1) is specifically about 60 to 90. The hardness of the soft rubber (2) is about 20 to 70. The rubber roll according to the present invention can be manufactured by the following method. For example, when manufacturing a rubber roll as shown in FIG. 1, a donut-shaped disc made of hard rubber (1) and a donut-shaped disc made of soft rubber (2) are prepared, and the donut-shaped discs are alternately arranged. Just insert it through the roll shaft. In the case of manufacturing a rubber roll as shown in FIG. 2 or 3, hard rubber (1) is used after vulcanization.
The unvulcanized rubber that becomes vulcanized and the unvulcanized rubber that becomes the soft rubber (2) after vulcanization are placed on the outer peripheral surface of the roll, vulcanized under predetermined vulcanizing conditions, and the outer peripheral surface of the roll may be polished and finished. . As a material forming the hard rubber (1) and the soft rubber (2), natural rubber or synthetic rubber can be used. As the synthetic rubber, butadiene-styrene rubber, nitrile rubber, isoprene rubber, stereo rubber, butyl rubber, chloroprene rubber, urethane rubber, silicone rubber, fluorine rubber and the like can be used. In particular, natural rubber is well-balanced in rubber-like elasticity and heat resistance and is preferable for use in the present invention. When vulcanizing the unvulcanized hard and soft natural rubber to produce the rubber roll according to the present invention, it is preferable to vulcanize under conditions of a temperature of 130 to 180 ° C. and a time of 20 minutes to 10 hours. . The rubber roll according to the present invention may be combined with other metal, cotton or paper rolls to form a pair, and a cloth or the like may be introduced into the pair, or the rubber rolls according to the present invention may be combined to form a pair. Then, a cloth or the like may be introduced therein and used.

[Action]

When a cloth or the like is pressed by using the rubber roll according to the present invention, the cloth or the like is pressed by the hard rubber and the soft rubber.
Therefore, the cloth or the like is not pressed by a constant pressing force, but is strongly pressed by the hard rubber or weakly pressed by the soft rubber. Therefore, the kneading effect is given to the cloth and the like.

[Effect of device]

If a cloth or the like is processed using the rubber roll according to the present invention, the cloth or the like can be sufficiently kneaded, and the cloth or the like can be imparted with flexibility. Further, since the rubber roll according to the present invention can be incorporated in a conventional calendering machine, it has an effect that it can occupy a small installation space and can easily and inexpensively process a cloth or the like.

[Brief description of drawings]

1, 2, and 3 are schematic plan views of a rubber roll according to an embodiment of the present invention. (1) …… Hard rubber, (2) …… Soft rubber

Claims (1)

[Scope of utility model registration request] 1. An outer peripheral surface of a roll is composed of hard rubber and soft rubber, and the hardness difference between the hard rubber and the soft rubber is
20 to 70 (however, the measuring method for rubber hardness is JIS K 6301A type), which is a rubber roll for improving the texture of fabrics and the like.