JPH07145553A - Method for forming glossy pattern on surface of cloth and apparatus therefor - Google Patents

Abstract

PURPOSE:To obtain an inexpensive technical means relating to a method and apparatus for forming a glossy pattern on the surface of cloth made of chemical fibers and enabling the formation of the glossy pattern exclusively on the surface without deteriorating the feeling of the cloth. CONSTITUTION:A pattern roll 5 having a relief pattern and a smooth hot roll 12 are arranged parallel to each other interposing a gap smaller than the thickness of cloth E to be treated. The cloth E is passed through the gap between the rolls while contacting the back face of the cloth E with the pattern roll 5. The hot roll 12 is contacted with the surface of the cloth corresponding to the protruded part 5a of the pattern roll to smoothly deform the contacted part. The diameter of the pattern roll 5 is made to be smaller than that of the hot roll 12 and the hot roll 12 is made to contact in the form of line or point with the cloth surface protruded by the protruding part 5a of the pattern roll. The gap between the pattern roll 5 and the hot roll 12 is freely adjustable with a positioning means for setting the roll gap. The hot roll 12 is provided with a thermal medium supplying means to maintain the surface temperature of the roll.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for forming a glossy pattern on the surface of a woven or knitted fabric made of chemical fiber (hereinafter referred to as "chemical fiber cloth").

[0002]

2. Description of the Related Art A hot embossing method is known as a method for forming a glossy pattern on the surface of a chemical fiber cloth. This processing method utilizes the thermoplasticity of chemical fibers, and an apparatus as shown in FIG. 8 is used. This device 50 is a rubber roll or paper roll mounted horizontally (iron roll with paper wound around it).
A hollow embossing roll 52 having a concave and convex pattern on the surface is arranged in parallel above 51 and a support pipe 53 for supplying a heating medium heated by a heater (not shown) to both ends of the embossing roll 52. Is provided. Both rolls 51 and 52 have substantially the same diameter, and are provided so that they can be separated from each other and pressed. During hot embossing, the embossing roll 52 is heated and the cloth E is inserted between both rolls to form a glossy pattern 54 having irregularities. Taking a polyester woven fabric as an example, the temperature of the heat medium supplied to the embossing roll 52 is 160 to 200 ° C., and the surface temperature of the embossing roll is maintained at 150 to 190 ° C.

[0003]

However, in the conventional method, the embossing roll 52 heated and pressed and the cloth E are in surface contact with each other, so that the contact time between the embossing roll and the cloth becomes long and the cloth reaches the back surface. There has been a problem that thermal deterioration occurs and the texture of the fabric after embossing is deteriorated. In addition, there is a problem in that the processed fabric has irregularities on the back surface side, which makes it uncomfortable to touch and limits the applications of the fabric.

Further, since the conventional device presses the heated embossing roll onto the paper roll, it is necessary to consider so that the pressure is evenly applied in the longitudinal direction of both rolls. Must be large and equal. Therefore, there is a disadvantage that the weight of the embossing roll becomes large and it takes time to replace the embossing roll, and the peripheral area of the embossing roll becomes large, so that an uneven pattern has to be formed in a wide range, which increases the manufacturing cost of the embossing roll. There was a drawback.

It is an object of the present invention to provide a method capable of inexpensively forming a glossy pattern only on the surface without impairing the texture of the cloth itself, and an apparatus suitable for carrying out this method. There is.

[0006]

A method for forming a glossy pattern according to the present invention comprises a pattern roll 5 having an uneven pattern on the surface thereof and a heat roll 12 having a smooth peripheral surface at an interval h narrower than the thickness of a cloth E. The fabric E is arranged in parallel, the back side of the fabric E is pressed against the handle roll 5 and is inserted between both rolls, and the hot roll 12 is brought into contact with the fabric surface projected by the convex portion 5a of the handle roll to contact the contact portion. Is characterized by smoothly deforming. The diameter of the handle roll 5 can be made sufficiently smaller than the diameter of the heat roll 12, and the heat roll 12 can be brought into linear or point-like contact with the fabric surface projected by the protrusions 5a of the handle roll. If the moving speed of the cloth E and the peripheral speeds of both rolls 5 and 12 are made to coincide with each other, a sharp gloss pattern near the pattern can be formed, and the moving speed of the cloth E is slightly faster than the peripheral speed of the pattern roll 5. By doing so, a glossy pattern with a blurred pattern can be formed.

An apparatus for forming a glossy pattern according to the present invention is
A pattern roll 5 having an uneven pattern on its surface and a heat roll 12 arranged in parallel with the pattern roll 5 are provided so as to be close to and separated from each other, and a positioning adjusting means for setting a distance between the heat roll 12 and the pattern roll 5 is provided. 29 is provided, and the heat roll 12 is provided with a heat medium supply means 17 for maintaining the surface temperature thereof. The diameter of the handle roll 5 can be made sufficiently smaller than the diameter of the heat roll 12, and the backup means 4 can be provided on the anti-heat roll side of the handle roll 5.

[0008]

In the method according to the present invention, the pattern roll 5 and the heat roll 12 are separated by a distance h narrower than the thickness of the cloth during processing, and the surface of the cloth projected by the convex portion 5a of the pattern roll is formed on the heat roll 12. Since they are brought into contact with each other, only the surface of the cloth can be smoothly deformed to form a glossy pattern. On the other hand, the surface of the fabric housed in the recess 5b of the handle roll does not come into contact with the heat roll 12 and thus does not deform (see FIG. 7), and the deterioration of the texture of the entire fabric can be effectively prevented. In particular, if the diameter of the handle roll 5 is made sufficiently smaller than the diameter of the heat roll 12 and the heat roll 12 is brought into linear or point contact with the fabric surface projected by the protrusions 5a of the handle roll, the fabric It is possible to maintain the same texture as that before processing and to form a glossy pattern with a sharp pattern edge.

In the apparatus of the present invention, since the distance between the heat roll 12 and the handle roll 5 can be freely set by the position adjusting means 29, the distance between both rolls can be set at a distance narrower than the thickness of the cloth. The heat roll 12 can be brought into contact with only the surface of the cloth. If the diameter of the handle roll 2 is manufactured to be sufficiently smaller than the diameter of the heat roll 3, the cloth can be brought into contact with the heat roll 12 in a dotted or linear manner. Further, if the backup means 4 is provided on the anti-heat roll side of the handle roll, the central portion of the handle roll 5 having a small diameter can be maintained horizontally, and the occurrence of pattern unevenness in the width direction of the fabric can be prevented. it can. Further, since the outer diameter of the handle roll is reduced, the roll can be made lighter, and the concavo-convex pattern of the handle roll can be manufactured easily and at low cost.

[0010]

EXAMPLE FIG. 2 is a view showing the arrangement of an apparatus for forming a glossy pattern according to the present invention. The device A is arranged on the downstream side of the workbench B, and further on the downstream side, a feeding device C for transferring the cloth at a constant speed is provided. A steam cylinder D is provided on the upstream side of the workbench, and the chemical fiber cloth E housed in the box car is heated to 90 to 100 ° C. and sent to the apparatus A.

FIG. 3 is a front view schematically showing the device of the present invention. Above the frame 1 of the apparatus A, three bearing members 3 (see FIG. 5) in which three rollers 2 are arranged in series on both sides are arranged in the axial direction of the roller 2 so as to be separated from each other. The backup rolls 4, 4 are placed in the two recesses formed between the three rollers 2, and
Has a length such that it can be mounted on all of the three bearing members 3. A handle roll 5 is placed in the recess formed between the two backup rolls 4. The handle roll 5 has a diameter of 76 mm, and shafts 6 are provided at both ends thereof. The shafts 6 at both ends are brackets 7 erected on the frame.
It is rotatably supported by the shaft and regulates the movement of the handle roll in the axial direction and the direction perpendicular to the axis. A pulley 8 is fixed to the right shaft 6, and this pulley is connected to a first motor 11 via a belt 9. An uneven pattern is engraved on the surface of the handle roll, and the backup roll 4 supports the handle roll 5 so that the top of the handle roll 5 is horizontal.

The heat roll 1 arranged in parallel with the handle roll 5.
Reference numeral 2 denotes a stainless steel hollow roll having a diameter of 190 mm, which is mounted on an arm to be described later by support pipes 13 provided at both ends thereof, and can be closely spaced from the handle roll 5. The support pipe on the left side is the rotary joint 14
The support pipe on the left side is connected to the discharge pipe 16 via the rotary joint 14, and the supply pipe and the discharge pipe are connected to the heat medium supply device 17. A pulley 18 is fixed to the support pipe on the left side, and this pulley is connected via a belt 19 to the second motor 2
It is connected to 1. The rotation speeds of the first motor and the second motor are controlled so that the peripheral speed of the handle roll and the peripheral speed of the heat roll become equal.

FIG. 4 shows a support structure and a positioning structure for the heat roll. The support pipe 13 of the thermo roll is
An arm 23 pivotally supported by a stationary pin on an immovable member is rotatably mounted via a bearing 24. A rod 27 of a hydraulic cylinder 26 is connected to the tip of the arm via a connecting pin 25. Bearing 24 and pin 25
A screw rod 28 having a knob at its upper end is screwed between the and so as to be movable back and forth in the vertical direction, and the screw rod 28 is rotated to adjust the warp of the heat roll. A stopper 29, which is slidable in the vertical direction, is provided below the screw rod, and a cam roller 31 is provided at the lower end of the stopper. The cam roller is in contact with the upper peripheral surface of the eccentric cam fixed to both ends of the operation shaft 32 mounted on the immovable member. A handle 34 with a brake is provided on the front side of the operation shaft, and a position setter 35 for determining the vertical position of the stopper is provided at the rear end. Before processing, the hydraulic cylinder 26 is retracted, and the handle roll 5 and the heat roll 12 are separated from each other.

Next, the method of the present invention will be described with reference to FIGS. 1 and 5 using the apparatus of the above embodiment. Chemical fiber cloth E
The product temperature, the weaving texture, the fiber type and the thickness are measured to set the surface temperature of the heat roll 12 and the distance h between the heat roll 12 and the handle roll 5. When the polyester fiber woven fabric is used as the cloth, the heat medium is supplied to the heat medium supplying device 17 at
Then, the surface temperature of the heat roll 12 is maintained at 170 to 200 ° C. This interval varies depending on the type and thickness of the fibers of the fabric to be processed, and when the nylon fiber woven fabric is used as the fabric, the surface temperature of the heat roll 12 is maintained at 110 to 125 ° C. Thermo roll 12
The interval h between the handle roll 5 and the handle roll 5 is adjusted by operating the lever 34 while looking at the position setter 35 to rotate the eccentric cam 33 back and forth, and after setting the vertical position of the stopper 29, the hydraulic cylinder 26 is extended. It is determined by bringing the tip of the screw rod 28 into contact with the upper end of the stopper 29. Next, tension is applied to the cloth E, and the back surface side is fed between the heat roll 12 and the handle roll 5 while pressing the uneven pattern of the handle roll 5. The surface of the fabric projected by the convex portion 36 of the handle roll is brought into contact with the heat roll 12 and deformed smoothly to form a glossy pattern matching the pattern of the handle roll. The surface of the fabric at a position corresponding to the concave portion of the handle roll does not come into contact with the heat roll and is not deformed. When it is desired to weaken the glossy pattern on the fabric surface, the gap between the pattern roll and the heat roll may be widened, and when it is desired to be strong, the gap between them may be narrowed. FIG. 6 is a schematic view of a fabric processed by the method of the present invention. The glossy pattern 37 is formed only on the front surface of the cloth, and there is no uneven pattern on the back surface of the cloth. The thickness h of the glossy portion is approximately equal to the distance between the heat roll 12 and the handle roll 5.

FIG. 7 shows another means for pressing the cloth E against the handle roll 5. A pressure roll 39 having soft rubber wound on the surface thereof is provided on the inlet side of the handle roll, and the fabric in a free state is made to follow the uneven pattern of the handle roll by this pressure roll.

[0016]

As described above, according to the method of the present invention, only the surface of the chemical fiber cloth is brought into contact with the heat roll to be smoothly deformed to form a glossy pattern. The decrease can be effectively prevented. In particular, when a handle roll having a small diameter is used, the surface of the fabric can be brought into contact with the heat roll in a point or line shape, and the texture before processing can be maintained. If processed and dyed after processing of the present invention, the product will have a blurred gloss pattern,
Color shading occurs between the glossy pattern and other parts. By subjecting the dyed fabric to the process of the present invention, a product having a glossy pattern with a clear contour on the surface of the fabric can be obtained.

The apparatus of the present invention comprises a heated large-diameter heat roll and a small-diameter handle roll having an uneven pattern, and can be brought into contact with the heat roll in a point or line shape. Since the pressure is small, the diameter of the handle roll can be reduced, and handle rolls having various handle patterns can be manufactured at low cost. If the pattern roll is supported by the backup roll, the top of the pattern roll can be maintained horizontally and the occurrence of pattern unevenness in the width direction of the fabric can be prevented.

[Brief description of drawings]

FIG. 1 is a process diagram of the method of the present invention.

FIG. 2 is a side view showing the arrangement of the device of the present invention.

FIG. 3 is a partial front view of the device of the present invention.

FIG. 4 is a perspective view showing a support structure for a heat roll.

FIG. 5: Side view of the enlarged main part during processing

FIG. 6 is a cross-sectional view of the fabric after processing

FIG. 7 is a side view showing another means for conforming to the uneven pattern.

FIG. 8 is a side view of a main part of a conventional device.

[Explanation of symbols]

 4 Backup Roll 5 (a, b) Handle Roll 12 Heat Roll 17 Heat Medium Supply Device 29 Stopper E Fabric

Claims (4)

[Claims] 1. A pattern roll (5) having an uneven pattern on the surface and a heat roll (12) having a smooth peripheral surface are arranged in parallel at a distance (h) narrower than the thickness of the cloth (E), and the cloth (E ) The back side of the handle roll
While being pressed against (5), it is inserted between both rolls, and the heat roll (1
A method for forming a glossy pattern on the surface of a cloth, which comprises contacting 2) to deform the contact portion smoothly. 2. The diameter of the handle roll (5) is made sufficiently smaller than the diameter of the heat roll (12), and the heat roll (12) is linearly formed on the surface of the fabric projected by the protrusions (5a) of the handle roll. The method for forming a glossy pattern on the surface of the fabric according to claim 1, wherein the method comprises contacting in a dot shape. 3. A heat roll (12) is provided with a handle roll (5) having an uneven pattern on the surface and a heat roll (12) arranged in parallel with the handle roll (5) so as to be closely spaced from each other. Positioning adjusting means (29) for setting the distance between the handle roll (5) and the handle roll (5) is provided, and the heat roll (12) is provided with heat medium supplying means (17) for maintaining the surface temperature thereof. An apparatus for forming a glossy pattern on the surface of a fabric, which is characterized in that 4. The diameter of the handle roll (5) is made sufficiently smaller than the diameter of the heat roll (12), and backup means (4) is provided on the anti-heat roll side of the handle roll (5). An apparatus for forming a glossy pattern on the surface of the fabric according to claim 3.