JP2010060447A - Frictional electrostatic property evaluating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frictional electrostatic property evaluating device that evaluates the frictional electrostatic property of a test base fabric with friction between the test base fabric and friction cloth, and allows the visual and tactile sensing of static electricity accumulated in the test base fabric. <P>SOLUTION: This frictional electrostatic property evaluating device evaluates the frictional electrostatic property of the test base fabric generated by the friction between the test base fabric and friction cloth. The device comprises a rotation frame 1 to which the friction cloth is stuck and a fixing member 8 of the test base fabric. The test base fabric is attached at a position at which the friction cloth comes into contact with the test base fabric when the rotation frame 1 rotates. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an apparatus for evaluating the triboelectric charging property of a test cloth by friction between the test cloth and the friction cloth.

  Conventionally, as a device for evaluating the triboelectric charging property of a test fabric by friction between the test fabric and a friction material, a device for rubbing a horizontally installed test fabric and a movable friction material, or a test attached to a rotating drum Devices that rub the fabric and the fixed friction cloth have been proposed (see, for example, Patent Document 1, Patent Document 2, and Non-Patent Document 1).

  However, in these apparatuses, the static electricity accumulated in the test fabric is removed because the test fabric is still in contact with the friction object even after the friction, and the static electricity cannot be sensed visually and tactilely.

JP-A-1-216264 Japanese Utility Model Publication No. 5-92756 Pp. 319-320 of "Fiber Engineering [VI] Production and Performance of Final Textile Products" Printed on October 31, 1997

  The present invention has been made in view of the above-described background, and an object of the present invention is to evaluate the triboelectric chargeability of a test cloth by friction between the test cloth and the friction cloth, and visually recognize the static electricity accumulated in the test cloth. An object of the present invention is to provide a triboelectric chargeability evaluation apparatus that can be experienced physically and tactically.

  As a result of diligent study to achieve the above-mentioned problems, the inventor stuck a friction cloth to the rotating frame, brought the test cloth and the friction cloth into contact with each other only during rotation of the rotating frame, and after the rotation stopped By making the test fabric and the friction fabric non-contact, the static electricity accumulated on the test fabric is not neutralized, and the static electricity accumulated on the test fabric can be visually and tactilely sensed, and further investigations are made. As a result, the present invention has been completed.

  Thus, according to the present invention, “an apparatus for evaluating the triboelectric charging property of a test cloth generated by friction between the test cloth and the friction cloth, the rotating frame body 1 on which the friction cloth is bonded and the fixing member 8 of the test cloth”. The friction fabricability evaluation apparatus is provided, wherein the test cloth is attached at a position where the friction cloth and the test cloth come into contact with each other when the rotating frame 1 rotates. Is done.

  At this time, it is preferable that the rotary frame 1 has 2 to 6 cylinders 3 and a friction cloth is bonded to the cylinders 3. The rotating frame 1 is preferably manually rotated by the handle 4. Moreover, it is preferable that the fixing member 8 for fixing the test fabric is an elastic body. In that case, it is preferable that the elastic body is a spring.

  According to the present invention, an apparatus for evaluating the triboelectric chargeability of a test cloth by friction between the test cloth and the friction cloth, and the static electricity accumulated in the test cloth can be visually and tactilely sensed. An apparatus for evaluating the triboelectric chargeability of a fabric, which is capable of evaluating static electricity that is close to occasion, is obtained.

Hereinafter, embodiments of the present invention will be described in detail.
The friction chargeability evaluation apparatus of the present invention includes a rotating frame body 1 on which a friction cloth is bonded. In the rotating frame 1, the rotating frame 1 has 2 to 6 (preferably 2 to 4 and particularly preferably 2) cylinders 3, and a friction cloth is bonded to the cylinder 3. It is preferable.

  Here, the dimensions of the cylinder 3 are not particularly limited, but it is preferable that the diameter (outer diameter) is in the range of 10 to 60 mm and the length is in the range of 100 to 600 mm. The material of the cylinder 3 is preferably an acrylic cylinder. The friction cloth to be bonded to the cylinder 3 may be a known friction cloth such as a wool standard cloth. The method for attaching the friction cloth to the cylinder 3 is not particularly limited, and may be a known method such as an adhesive or a double-sided tape.

  The cylinder 3 is connected by a connecting member 5 as shown in FIG. Although it does not specifically limit as a dimension of this connection member 5, The range of width 10-100mm, length 100-300mm, and thickness 3-8mm is preferable. In particular, when the ratio of width to length (length / width) is in the range of 3 to 10, the test cloth and the friction cloth are brought into contact only during rotation of the rotating frame, and the test cloth is The friction cloth can be made non-contact and is particularly preferable. The connecting member 5 is preferably an acrylic plate. Note that two connecting members 5 are usually used, one at each end of the cylinder 3.

A hole is made in the central portion of the connecting member 5, and the rotating shaft 6 is passed through. The rotating shaft 6 has a round cross section, and the material thereof is preferably iron or stainless steel.
The rotating shaft 6 is supported by a circular hole 9 formed in the housing 7. By the rotation of the rotating shaft 6, the connecting member 5 and the cylinder 3 rotate around the rotating shaft 6. At this time, the rotary shaft 6 may be rotated electrically, but it is preferable that the handle 4 is attached to the end of the rotary shaft 6 and rotated manually as shown in FIG.

  In the triboelectricity evaluation apparatus of the present invention, a test cloth 2 is attached at a position where the rotating cloth body 1 comes into contact with the friction cloth when the rotating frame 1 rotates, and the friction cloth and the test cloth 2 are rubbed only when rotating. Then, static electricity is accumulated on the test fabric. When the rotation is stopped, the friction cloth and the test cloth 2 can be brought into non-contact as shown in FIG. 1, so that static electricity accumulated in the test cloth is not neutralized.

  Here, the dimensions of the test fabric 2 are not limited, but a width of 50 to 150 mm and a length of 300 to 800 mm are preferable. Further, the number of test fabrics 2 is not limited, and may be two as shown in FIG. 1, or may be three or more.

  Further, when the test cloth 2 is fixed via a fixing member 8 made of an elastic body such as a spring as shown in FIG. 1, when the rotating frame 1 rotates, the cylinder 3 to which the friction cloth is attached is formed. Since the spring is stretched even when it comes into contact with the test fabric 2, it is preferable because the rotating frame 1 can be easily rotated.

  In the triboelectricity evaluation apparatus of the present invention, the dimensions of the housing 7 are not particularly limited, but are preferably in the range of 300 to 600 mm in width, 250 to 650 mm in height, and 150 to 350 mm in depth. Further, it is preferable that the front face is open as shown in FIG. 1 because the test cloth 2 can be easily touched after the friction cloth and the test cloth 2 are rubbed. Furthermore, it is preferable that the material of the housing 7 is a colorless and transparent acrylic plate so that the inside of the housing can be seen from the side surface or the back surface.

In the triboelectricity evaluation apparatus of the present invention, after the friction cloth and the test cloth 2 are rubbed, static electricity is accumulated in the test cloth 2. You can feel the phenomenon of sticking to your hand with the antenna. Further, when dust or the like is brought close to the test fabric 2, the dust is attracted so that static electricity can be sensed visually.
Although two cylinders 3 are shown in FIG. 1, it goes without saying that the number of cylinders 3 is not limited to two in the frictional charging evaluation apparatus of the present invention.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited at all by these.

[Example 1]
Using a colorless transparent acrylic plate having a thickness of 5 mm, a casing 7 having a width of 400 mm, a height of 450 mm, and a depth of 250 mm and having only one front surface as shown in FIG. Four metal ring fixtures for fixing the test fabric 2 at positions of 60 mm in the depth direction from the front surface of the housing 7 and 50 mm and 150 mm from both side surfaces were installed on the top surface and the bottom surface, respectively. Furthermore, in order to support the rotating shaft 6 at a position of 130 mm in the depth direction and 250 mm in height, circular holes having a diameter of 13 mm were provided on both side surfaces.

Next, a cylindrical acrylic having a diameter of 30 mm and a length of 350 mm is used as the cylinder 3, and an acrylic plate (connecting member 5) having a thickness of 5 mm, a width of 35 mm, and a length of 200 mm is attached to both ends of the two acrylic cylinders one by one. Further, a stainless steel rod (rotating shaft 6) was attached to the center of the acrylic plate (connecting member 5) on both sides. Then, after attaching the stainless steel rod (rotary shaft 6) to the circular hole of the casing 7, an L-shaped handle 4 is attached to one end of the stainless steel rod (rotating shaft 6) so that it can be easily manually rotated. did. In addition, a known wool standard cloth is wound around the two cylinders 3 as a friction cloth.
The test fabric 2 was previously cut to a width of 100 mm and a length of 500 mm, wrapped around a wooden cylinder of 10 mm in diameter and 150 mm in length from both sides, and given a slight slack, the upper part was fixed to a metal ring, The lower part was fixed with a wooden cylinder and a metal ring with a spring (fixing member 8).

  Thereby, when the roller rotates, the rotating frame body 1 can be easily rotated by the elasticity of the spring, and when the rotation of the rotating frame body 1 is stopped, the friction cloth bonded to the rotating frame body 1 is the test cloth 2. Without touching the test cloth 2 directly, when the hand is held over the test cloth 2, the phenomenon that the test cloth 2 is attracted to the hand due to static electricity can be experienced with the antenna. Further, when dust or the like is brought close to the test fabric 2, the dust is attracted so that static electricity can be sensed visually.

  According to the present invention, an apparatus for evaluating the triboelectric chargeability of a test cloth by friction between the test cloth and the friction cloth, and the static electricity accumulated in the test cloth can be visually and tactilely sensed. An apparatus for evaluating the triboelectric chargeability of a fabric capable of evaluating static electricity that is close to the occasion is obtained, and its industrial value is extremely large.

It is a figure which illustrates the triboelectricity evaluation apparatus which concerns on this invention. FIG. 2 is a photograph of the triboelectric chargeability evaluation apparatus manufactured according to FIG. 1.

Explanation of symbols

1: rotating frame 2: test fabric 3: cylinder 4: handle 5: connecting member 6: rotating shaft 7: housing 8: fixed member 9: circular hole

Claims (5)

  An apparatus for evaluating the triboelectric chargeability of a test cloth generated by friction between the test cloth and the friction cloth, comprising: a rotating frame body 1 on which the friction cloth is bonded; and a fixing member 8 of the test cloth, the rotating frame body 2. A triboelectric charging evaluation apparatus, wherein the test cloth is attached at a position where the friction cloth and the test cloth come into contact with each other when 1 rotates.   The frictional charging evaluation apparatus according to claim 1, wherein the rotary frame body 1 has 2 to 6 cylinders 3, and a friction cloth is bonded to the cylinders 3.   The frictional charging evaluation apparatus according to claim 1 or 2, wherein the rotating frame body (1) is manually rotated by a handle (4).   The triboelectric charging evaluation apparatus according to any one of claims 1 to 3, wherein the fixing member 8 for fixing the test fabric is an elastic body.   The triboelectric charging evaluation apparatus according to claim 4, wherein the elastic body is a spring.