JPH0739651Y2 - Blanket wash cloth for rotary press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present application relates to a blanket cleaning cloth for cleaning ink, water and oil adhering to a blanket cylinder of an offset rotary press.

(Prior Art) Conventionally, the blanket attached to the rubber roller of an offset rotary press is stained with ink, water, and oil, which must be quickly washed and wiped clean.

However, the following methods have been used to wash them, but each has major drawbacks.
First, it was done by hand. This does not require any special equipment and does not cost much, but it requires a lot of labor by hand, and it also takes about 20 minutes at a time, and it has the drawback of getting hands dirty.

In addition, in the case of the cleaning cloth used for automatic cleaning, a non-woven fabric of rayon-based short fibers is used, but it has the disadvantage that it has a weak wet strength and cannot be used repeatedly, resulting in a high cost. Have In the case of a wash cloth made only of spunbonded non-woven fabric, since the fibers are hydrophobic, the wash solution is not soaked in, the ink is not absorbed well, and there is a lot of fuzz, and it is impossible to sufficiently wash the ink, water, and oil adhering to the blanket. There was a flaw.

(Problems to be Solved by the Invention) As described above, the present invention has been made to solve the drawbacks and problems of the conventional ones.

As described above, by placing cotton on the spunbonded non-woven fabric of synthetic filament and entwining the cotton with the spun-bonded non-woven fabric with a water needle to provide an integrated blanket washing cloth for the rotary press so as to contact the blanket cylinder of the rotary press. This is to solve all the problems and to remove the dirt. In other words, it is a strong base fabric that is a combination of spunbonded non-woven fabric and cotton, and the surface cotton is used to remove dirt by utilizing its good water absorption and oil absorption properties.

This is a spunbonded non-woven fabric with cotton entwined with water needles, and because the non-woven fabric and cotton overlap, it is bulky. It is calendered and embossed to make it thin. It also has the advantage that the cleaning efficiency is very good by preventing the diameter from becoming excessively large and by winding a large amount within a certain diameter.

Compared with the case where the conventional spunbonded non-woven fabric is washed with only a sponged non-woven fabric, the fluff generated by the conventional spunbonded non-woven fabric is pressed against the rotating rubber roller, which causes sheet breakage. However, in the case of the present invention, since the cotton is exposed on the surface of the sheet (base cloth), the fluff caused by friction is a short fiber of cotton and does not cause the sheet to break, so that the core (or lower) Not only is it strong because it is reinforced with spunbonded non-woven fabric,
The cotton material on the surface is the most suitable base cloth that has the excellent effect of wiping off ink, water and oil.

(Embodiment, Action) The drawings show an embodiment of the present invention. FIG. 1 is a schematic perspective view of the present invention with a blanket cleaning cloth partially omitted, and FIG. 1 is a sectional view generally showing a case where a blanket cleaning cloth of the present invention is attached to a rotary press.

As shown in FIG. 1, 1 is a spunbond nonwoven fabric,
This is composed of synthetic fiber filaments, which may be nylon or polyethylene terephthalate, and is composed of synthetic filaments 3. The basis weight is 30 to 100 g / m ² .
2 is a cotton, which is evenly laid on the spunbonded nonwoven fabric 1, and the cotton cloth is entangled and integrated with the spunbonded nonwoven fabric by a water needle that sends a high-pressure water stream.
Is.

Next, the second part of the printing process and the washing of the present invention
Shown in the figure. The paper 11 is sandwiched between the rubber roller 6 and the pressure roller 8 and is advanced and transferred. 10 is an ink tank in which ink is contained. Ink is plate roller 7,
It is carried to a rubber roller 6 having a blanket 12 and offset printing is performed by a pressure roller 8. On this occasion,
Ink, water, and oil adhering to the blanket 12 wound around the printing machine of the rubber roller 6 involved in printing are automatically washed by pressing and rotating the blanket washing device 9 wound with the blanket washing cloth 5 of the present invention. ， It was wiped off.

The cleaning cloth 5 of the present invention is for automatically cleaning the ink, water, and oil adhering to the blanket 12 of this most important printing portion, and has the most suitable water absorption and strength. It is cloth.

In the present invention, cotton is exposed on the surface and is integrally entangled with a spunbonded non-woven fabric composed of synthetic filaments. This cotton does not come off, and its softness greatly improves water absorption, Has an excellent wiping effect. The surface cotton is the core (bottom)
Not only can it be used in combination with the spunbonded non-woven fabric of No. 3 to make it easier to wipe off stains with appropriate irregularities formed on the surface by embossing, etc., but the non-woven fabric below this greatly reinforces the strength, especially in the longitudinal direction, This is a rotating rubber roller 6
Sufficient strength is maintained even when pressed against.

(Effects) As described above, the present invention is more efficient than the conventional manual wiping because it is an automatic wiping, and is also the most suitable as a cleaning cloth used for it. Unlike conventional short-fiber nonwoven fabrics, the fibers do not come out, and when compared to spun-bonded nonwoven fabrics alone, the surface cotton absorbs water well, and spunbond reinforcement at the bottom causes sheet breakage as in the past. Without
It has a sufficient cleaning effect.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view schematically illustrating the blanket washing cloth of the present invention with a part of the blanket washing cloth omitted, and FIG. 2 is a rotary press of a general offset printing press. It is sectional drawing which shows the case where the blanket cleaning cloth of the invention is attached. In the figure, 1 is spunbonded non-woven fabric, 2 is conton part, 3 is synthetic filament of spunbonded non-woven fabric, 4 is cleaning cloth, 6 is rubber roller, 7 is plate roller, 8 is pressure roller, 9 is blanket cleaning device, 10 is an ink tank, 11 is paper, and 12 is a blanket wound on rollers.

Claims (1)

[Scope of utility model registration request] 1. A blanket washing cloth for a rotary press, wherein cotton is placed on a spunbonded non-woven fabric of synthetic filaments, and the spunbonded non-woven fabric is entangled with cotton with a water needle to be integrated.