Polishing cloth and method for producing same
a technology of polishing cloth and cloth, which is applied in the field of polishing cloth, can solve the problems of abnormal axes of easy magnetization, and achieve the effect of producing efficiently
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
example 1
Raw Fibers
(Sea Component and Island Component)
[0098]Nylon 6 with a melting point of 220° C. and an MFR of 10.5 was employed as the island component, and polystyrene copolymer (co-PSt) having 22 mol % of 2-ethylhexyl acrylate copolymerized, with a melting point of 53° C. and an MFR of 12, was employed as the sea component.
[0099](Spinning / Stretching)
[0100]The abovementioned sea component and island component were melt-spun using an islands-in-sea type spinneret with 376 islands / holes at a spinning temperature of 285° C., at an islands / sea mass ratio of 40 / 60, at a discharge rate of 1.7 g / min·hole and at a spinning rate of 1200 m / min, to obtain an islands-in-sea type composite fiber. Subsequently the composite fiber was stretched to 3.0 times in a spinning oil bath with a temperature of 85° C., and the fiber was crimped using a force crimper and cut to obtain islands-in-sea type composite fibers with a fineness of 6.5 dtex and a fiber length of 51 mm as raw fibers.
[0101](Nonwoven Fabri...
example 2
Raw Fibers
(Sea Component and Island Component)
[0107]The sea component and the island component were identical to those used in Example 1.
(Spinning / stretching)
[0108]The abovementioned sea component and island component were melt-spun using an islands-in-sea type spinneret with 200 islands / holes at a spinning temperature of 285° C., at an islands / sea mass ratio of 40 / 60, at a discharge rate of 0.9 g / min·hole and at a spinning rate of 1200 m / min, to obtain an islands-in-sea type composite fiber. Subsequently the composite fiber was stretched to 3.0 times in a spinning oil bath with a temperature of 85° C., and the fiber was crimped using a force crimper and cut to obtain islands-in-sea type composite fibers with a fineness of 5.2 dtex and a fiber length of 51 mm as raw fibers.
[0109](Nonwoven Fabric Comprising Composite Fibers Convertible into Ultrafine Fibers)
[0110]As described in Example 1, a nonwoven fabric comprising islands-in-sea type composite fibers with a weight per unit area o...
example 3
Raw Fibers
(Sea Component and Island Component)
[0113]The sea component and the island component were identical to those used in Example 1.
[0114](Spinning / Stretching)
[0115]The spinning and stretching were identical to those of Example 1.
[0116](Nonwoven Fabric Comprising Composite Fibers Convertible into Ultrafine Fibers)
[0117]A nonwoven fabric comprising composite fibers convertible into ultrafine fibers, with a weight per unit area of 800 g / m2 and an apparent density of 0.190 g / cm3 was produced as described in Example 1, except that needles with a throat depth of 60 a kick-up dimension of 10 μM, an undercut angle of 27°, and a throat length of 0.8 mm were used.
[0118](Polishing Cloth)
[0119]A polishing cloth was obtained as described in Example 1,
[0120]The obtained polishing cloth was 0.72 μm in the average fiber diameter of the ultrafine fibers, 7.0% in the CV of fiber diameter, 0.49 mm in thickness, 175 g / m2 in weight per unit area and 0.357 g / cm3 in apparent density. The results are...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
| surface roughness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More