JPH02235980A - Slip-resistant material - Google Patents

Abstract

PURPOSE:To prepare a slip-resistant material which has an excellent slip resistance and is suitably used for preventing slip on a frozen road by using a leather material comprising a reticular layer and/or mamillary layer having a multilayer structure of collagen fibers. CONSTITUTION:A leather material, obtd. from a cow, horse, pig, etc., comprising a reticular layer and/or mamillary layer having a multilayer structure of collagen fibers is fixed to a tire tread or shoe sole to prevent slip on a frozen road. Unlike a general synthetic fiber, the multilayer-structured leather fiber has an ability to absorb or scratch water film formed on the frozen road, and a hydrophilicity given by amino acids produced generates a large frictional force. Thus, an excellent slip resistance is exhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anti-slip material particularly suitable for preventing slips on frozen road surfaces.

(Jubei's technology) When a car gets stuck on a very slippery frozen road, Jubei attempts to escape by laying a blanket under the tire or placing a piece of wood under the tire, but the effectiveness of these methods is satisfactory. It's not a thing.

(Problems to be Solved by the Invention) An object of the present invention is to provide an anti-slip material that allows safe running or walking on extremely slippery frozen road surfaces, and tires or footwear using the anti-slip material. .

(Means for Solving the Problems) The present invention relates to an anti-slip material using a leather material consisting of a reticular layer and/or a papillary layer having a hierarchical structure of #i fibers of chewing laden protein.

Various types of leather materials can be used for the anti-slip material of the present invention, but preferred are leather materials obtained from cows, horses, pigs, goats, sheep, etc., for example.

As the leather material of the present invention, a reticular layer and/or a papillary layer of leather is used.

Collagen protein, which is composed of amino acid groups and is the main component of the papillary and reticular layers that make up most of the leather, has a high-order hierarchical structure. Collagen molecules have a molecular weight of approximately 300,000 and a length of approximately 300,000
00A, an elongated rod-shaped molecule with a diameter of about 15A. These molecules are regularly assembled to form micro-7ibrils. It is thought that as these micro 7-ipril aggregate, covalent crosslinks are formed within and between collagen molecules, making the collagen insoluble and forming 7-ipril. #ilI (F ibe
r), and the fibers converge to form a fiber bundle (Fiber b
undle). The diameter of the above 7 ibril is 5
The fibers are very thin, measuring between 0 and 2001Ill, while the fiber bundles are up to about 500μ10, and the leather has a complex strata structure.

The anti-slip material of the present invention has a micro-to-macro hierarchical structure made of leather fibers that "sucks" water films on frozen roads, especially at -7 to 0°C, where water films are likely to form. It effectively exerts wiping, etc., and generates a large frictional force due to the hydrophilic nature of the amino acids it forms.

The anti-slip material 1 of the present invention can be placed on a frozen road surface as it is or through a plate or the like, and the tire can be placed on top of it to try to escape from the frozen road surface, or a tire chain can be attached to the red part of the tire. It may be attached removably as shown in the figure. Furthermore, it is pasted on the red part of the tire with adhesive {-1
It's okay to go. In the case of footwear, it may be removably attached to the bottom of the footwear, or it may be attached with adhesive.

In addition, the papillary layer from which the epidermis has been peeled off was surface-finished [Ginmen-1].
If you take it so that it is on the ground surface, the water film will be wiped off and the "scratching" effect will be poor and undesirable. Tri-prongs and other fibrous materials will have a small anti-slip effect.

Although there is a physical effect on the water film, it is presumed that this is because the amino acid does not have a hydrophilic effect.

(Effect of the invention) The sliding sealing material of the present invention has excellent anti-slip properties, and q=y
- Suitable for use on frozen roads.

(Example) Examples and comparative examples will be described below. Note that "parts" simply indicate parts by weight.

Example 1 Double-sided tape was applied to the silver side of cowhide leather with a thickness of approximately 3+n+n. ]c+n into a disc shape and pasted it on the surface of the sample for the Vico test.The coefficient of friction (Ic
(・μ) was measured. For comparison, a sample on the silver side with a surface-finished papillary layer and a sample obtained from the following 1 roll 1 red rubber composition were also treated with Ice.
μ was measured. The results are shown in Table 1.

Control tread rubber blend 70 parts of natural rubber, 30 parts of high cis polybutane rubber, carbon black N 339 (70 parts), 50 parts of N7Ten oil, 3 parts of zinc white, 2 parts of stearic acid, anti-aging agent (
Sun I Flex 13) 1 part, Varafine wax 1 part, vulcanization accelerator (C B S ) 1.4 parts, sulfur 15T 2 parts Ice μ measurement method Using friction test shrimp made by Iwamoto Seisakusho Speed] Ok+n/hr
The frictional force on the waterway surface was measured at a temperature of -5'C.

Control}・Frictional force of red rubber sample 100
It is expressed as an index. The larger the value, the better.

Table 1 Example 2 Tire water obtained by pasting the leather material of Example 1 on one red part of a slick tire without grooves with an adhesive.
Two braking performance and starting performance were measured. Braking performance on ice is 40k+n/l on waterways using tires 165S R 13.
The tires were locked at a speed of +r, and the reciprocal of the distance until the car stopped was displayed with the control set as 100. The larger the value, the better the braking performance on ice. The starting performance is expressed as an index that is the reciprocal of the time from starting the car on a waterway until it starts running on its own, with control tread rubber tires set as 100.

The larger the value, the better the starting performance on ice. Second result
Shown in the table.

younger brother table (Hereafter Up) Out wish Man Toyo Rubber Industries Co., Ltd. teenager Reason Man

Claims (3)

[Claims] (1) An anti-slip material using a leather material consisting of a reticular layer and/or a papillary layer having a hierarchical structure of collagen protein fibers. (2) A tire comprising the anti-slip material according to claim 1 fixed to the tire tread. (3) Footwear comprising the anti-slip material according to claim 1 fixed to the sole.