JPH0660480B2 - How to make crepe paper - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to a novel method of creping a strip.

Conventional technology Conventionally, the strip is introduced into a press roll, the peripheral surface of the bottom roll forming the press roll is leaked with water, and the moisture is impregnated in the strip when sandwiched between the top roll and the wet strip, and the wet strip is covered with the peripheral surface of the dryer. It is taken by the method of adhering to and applying a doctor crepe. Alternatively, a shower is directly applied to the strip to wet it.

Problems to be Solved by the Invention However, in any of the above methods, water spots on the strip tend to occur, and there is a problem that it is difficult to wrinkle a uniform and beautiful crepe at all times. The purpose is to effectively solve this problem.

Means for Solving the Problems Thus, the present invention, as a means for wetting a strip, attaches the strip to a pre-wet conveyor belt and transfers it to a heating roll to ensure close contact with the belt. Then, an appropriate amount of water is uniformly impregnated into the strip, and the wet strip is transferred from the belt to a heating roll and subjected to doctor crepe.

Operation The heating roll is a dryer roll or a press roll arranged on the introduction side of the dryer roll, especially a top roll formed by a steam roll, and the wet paper impregnated with the moisture in close contact with the wet conveyor belt is transferred to the dryer roll. After applying a doctor crepe, or pressing the wet strip with the wet conveyor belt using the press roll, transfer it to a steam roll forming a top roll, apply the doctor crepe, and then again with a dryer roll. It is a doctor crepe.

Due to the close contact of the wet conveyor belt, the strip is wetted with a proper water content and uniformly, so that the doctor crepe on the subsequent heating roll can be deeply and uniformly applied.

Example FIG. 1 shows an example of a case in which a thread is inserted between two strips of paper to be laminated and creped. Reference numerals 1a and 1b denote strips to be laminated, and 2 denotes threads to be inserted between the strips.

The upper strip 1a is coated with an adhesive on its inner surface with a sizing roll 3 and is introduced into the pressure roll 4, and the lower strip 1b is coated with an adhesive on its inner surface with a sizing roll 12 and the same pressure is applied. The yarn 2 introduced into the roll 4 and superposed on the strip 1a, and at the same time, the yarn 2 inserted between the strips 1a and 1b is introduced into the pressure roll 4, and the pressure roll 4 presses the three parties 1a, 1b and 2 together. The thread-inserted laminated strip 1 is formed by adhering it, and then the strip 1 drawn out from the pressure roll 4 is attached to the wet conveyance belt 5 and introduced into the press roll 6.

The wet conveyor belt 5 passes between the delivery rolls 7 arranged on the introduction side of the press rolls 6, then passes between the press rolls 6 and runs endlessly so as to return to the delivery rolls 7 again.

The conveyor belt 5 is formed as a wet conveyor belt on the belt introduction side of the pay-out roll 7 by immersing it in a wet tray 8 for impregnating it with water, and then adjusting the water content after passing through a wetting means such as the wet tray. Water is passed between the rolls 9 (holding rolls) to adjust the water content of the wet conveying belt 5 by adjusting the holding pressure, and the water is spread over the entire belt, and then passed between the feeding rolls 7. .

The strip 1 is passed between the feeding rolls 7 together with the wet conveyor belt 5, the strip 1 is attached to the outer surface of the belt 5, and the wet conveyor belt 5 to which the strip 1 is attached is placed between the press rolls 6. It is introduced, and the strip 1 and the belt 5 are clamped to permeate water evenly. A shower 13 is applied to the strip 1a which is not in direct contact with the wet conveyance belt 5 on the side where the feeding roll 7 is introduced to ensure the water content.

Thus, the paper take-up roll of the press roll 6, that is, the top roll is formed by the steam roll 6a, the wet strip 1 is transferred to the steam roll 6a (top roll), and adhered to the peripheral surface of the roll. The swelling of the water is promoted while transferring the water, and crepe is applied by the doctor 10 brought into contact with the steam roll near the top dead center to remove the steam.

While the strip 1 is in close contact with the wet conveyance belt 5 and is transferred,
The entire surface is evenly moistened with an appropriate water content, and when it is further swelled with the steam roll 6a, the water content is swollen to soften the strip and firmly adhere to the peripheral surface of the roll 6a.
Therefore, the doctor crepe after the molding can be shaped well. A wet section 14 is formed on the introduction side of the press roll 6, that is, the steam roll 6a, in which the strip 1 is adhered to the surface of the wet conveyor belt 5 and moves to promote sufficient wetting of the strip.

The strip of crepe paper 1 peeled off from the steam roll 6a by the doctor 10 is continuously attached to the peripheral surface of the dryer 11, promotes drying, and is peeled off and wound.

The steam roll 6a and the dryer roll 11 forming the press roll 6 are both heating rolls, and although not shown, the wet strip 1 is directly applied to the dryer roll 11
A crepe can be formed by a doctor introduced into a (heating roll) and attached to the roll 11 to bring it into contact with the roll 11.
Alternatively, as described above, after the doctor crepe is shaped through the steam roll 6a (heating roll), the crepe can be re-creped with a dryer roll.

The strip 1 has been described in the case of the pasting form,
Needless to say, the above method may be applied to a single strip shown on either one of the strips 1a and 1b.

As described above, the present invention can apply a doctor crepe on a heating roll by uniformly moistening the strip with an appropriate amount of water content while adhering to the wet conveyor belt and transferring the strip. The shape of the crepe on the heating roll can be made uniform and beautiful, and the conventional problem of crepe failure can be effectively solved.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a crepe forming apparatus according to an embodiment of the present invention with a diagram. 1 ... Strip, 5 ... Wet conveyor belt, 6 ... Press roll, 6a ... Steam roll, 9 ... Moisture adjusting roll,
10 ... Doctor, 11 ... Dryer roll.

Claims (1)

[Claims] 1. A wet belt, which is adhered to a wet conveyor belt and transferred to a heating roll, and a wet belt impregnated with water from the wet conveyor belt is transferred from the belt to a heating roller and is subjected to doctor crepe. How to make crepe paper.