KR20140148095A

KR20140148095A - Pretreatment Device For Textile Printing

Info

Publication number: KR20140148095A
Application number: KR1020130071569A
Authority: KR
Inventors: 김천수
Original assignee: 김천수
Priority date: 2013-06-21
Filing date: 2013-06-21
Publication date: 2014-12-31

Abstract

The present invention relates to a textile printing preprocessing apparatus, and more particularly, to a textile printing preprocessing apparatus for feeding and discharging a fabric in a roll-to-roll manner between a fabric feeding unit and a fabric discharging unit, spraying a pretreatment liquid between the fabric feeding unit and a fabric discharging unit, And a spray unit and a heater unit for drying the sprayed pretreatment liquid are formed in an in-line manner, and a pretreatment liquid can be sprayed and dried in a single apparatus.

Description

[0001] The present invention relates to a pretreatment device for textile printing,

Textile printing is a technique that combines the principles of creative product production that tried various forms of expression and analysis and reconstruction based on the silk screen technique. Textile is a technique of textile, yarn, weaving or knitting products and felt Means a textile product

More specifically, screen printing or digital printing methods such as mechanical textile printing are widely used as techniques for dyeing a dye or a pigment with various colors of a salt with a suitable paste or a synthetic resin and stamping with a recognized pattern.

Such textile printing includes a preprocessing process of increasing the resolution of the pattern printed on the object, applying the pretreatment liquid to the object to be dyed or the pattern to be formed, in order to improve the durability of the object by sticking ink to the object.

In the conventional pretreatment process, a raw material requiring pretreatment is carried on a water tank containing a pretreatment liquid and then taken out and dried.

In the above-mentioned supporting method, the pretreatment liquid falls on the floor during the process of supporting and holding the fabric on the water tank, so that it is difficult to maintain a clean working environment and contaminants are likely to stick to the fabric.

In addition, there is a problem in that a difference in density arises in the process of carrying the fabric to and from the water tank and the pretreatment liquid is not uniformly distributed throughout the fabric and unnecessarily large amount of pretreatment liquid is consumed.

In addition, the drying furnace used for drying the pretreatment solution has a length of not less than 15M and occupies a large space, and also has a problem of low productivity due to waste of power and time consumed in the preheating process for drying.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a transfer stage in which a raw material is unwound and rolled in a roll-to-roll manner, a spray unit for applying a pretreatment liquid to the raw material between the rolls, The present invention provides a pretreatment apparatus for textile printing which includes a heater for drying a liquid and is capable of spraying and drying a pretreatment liquid of a fabric in an inline manner.

In order to accomplish the above object, according to the present invention, there is provided a pretreatment apparatus for textile printing comprising a raw material supply unit for supplying a raw material to be pretreated, a spray unit for spraying a pretreatment liquid to the raw material transferred from the raw material supply unit, A raw material discharging unit for discharging the raw material dried through the heater unit, and a control unit for controlling the transfer of the raw material, the spraying of the pretreatment liquid, and the heater, wherein the raw material supplying unit, the spray unit, the heater unit, And the discharge part is constituted of an inline.

Wherein the fabric feeder includes a fabric unwinding roll for loosening and feeding the wound fabric, a first feed roll formed at a lower portion spaced apart from the fabric unwinding roll, a second feed formed at the same height as the fabric unwinding roll, Roll. &Lt; / RTI >

The fabric discharge unit includes a first transport roll formed at a lower portion separated from a second transport roll and the second transport roll, a fabric spaced apart from the first transport roll and formed at the same height as the second transport roll, And a winding roll.

The spray unit includes a frame and an injection module formed on the upper part and spraying a pretreatment liquid.

Here, the frame includes a support roll for receiving the pretreatment liquid tank for supplying the pretreatment liquid to the injection module and supporting the movement of the raw material, and the injection module transports the pretreatment liquid stored in the pretreatment liquid tank to the injection nozzle unit A spray nozzle unit for spraying the pre-treatment liquid supplied from the nozzle tube, and an elevating unit for moving the spray nozzle unit up and down, .

The heater unit includes a heater frame including a support roll for supporting and transferring a raw material, a heater for drying the raw material on which the pretreatment liquid is sprayed, and a lift unit for moving the heater in the up and down direction. .

Further, the heater is formed of a near-infrared lamp.

The control unit may include a feed control module for controlling the feeding of the raw material, a spray control module for controlling the spraying of the pre-treatment liquid, and a heater control module for controlling the operation of the heater to control the feeding speed of the raw material, And the output of the heater is controlled optimally.

Wherein the feed control module controls the feed rate of the raw material for feeding the stage by adjusting the rotational speed of the roll included in the device, the injection control module controlling the injection pressure of the injection nozzle, And the heater control module controls the output of the heater radiating to the far end.

As described above, the pretreatment apparatus for textile printing according to the present invention includes a spray unit for implementing a transfer stage in a roll-to-roll system in which a fabric is unwound and wound, a pretreatment liquid is applied to the fabric between the rolls, Since the pretreatment liquid spraying and drying of the fabric can be performed in-line, the pre-treatment process can be remarkably shortened and productivity can be improved.

FIG. 1 is a perspective view schematically showing a pretreatment apparatus for textile printing according to the present invention, and FIG. 2 is a block diagram of FIG.
3 is a cross-sectional view of a textile printing preprocessing apparatus according to a preferred embodiment of the present invention.
4 is a cross-sectional view of a sprayer according to a preferred embodiment of the present invention.
5 shows a detachably formed pretreatment liquid tank.
6 is a cross-sectional view of a heater unit according to a preferred embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view schematically showing a pretreatment apparatus for textile printing according to the present invention, and FIG. 2 is a block diagram of FIG.

Referring to FIGS. 1 and 2, the pretreatment apparatus for textile printing according to the present invention comprises a raw material supply unit 10 for supplying raw materials required for a pretreatment, a spray unit 20 for spraying a pretreatment liquid to raw materials transferred from the raw material supply unit, A control unit 50 for controlling the transfer of the raw material, the spraying of the pretreatment liquid and the heater, a heater unit 30 for drying the pretreatment liquid sprayed through the spray unit, a raw material discharge unit 40 for discharging the raw material dried through the heater unit, As shown in FIG.

The raw material supplying unit 10 and the raw material discharging unit 40 may be configured in such a manner that the raw material is unwound by a roll and wound on the roll through the spray unit 20 and the heater unit 30. [

To this end, the far-end feeder 10 may be a roll-off roll, and the far-end feeder 40 may be a take-up roll.

The roll is rotated in a direction opposite to the unwinding roll while the roll is rotated, and the roll is rotated and the fabric is automatically unwound and fed to the spray unit 20. The roll is rotated in the opposite direction to the unwinding roll, The pretreatment liquid injected through the unit 20 is dried through the heater unit 30 and the discharged fabric is automatically wound.

3 is a cross-sectional view of a textile printing preprocessing apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 3, the far-end feeder 10 may include a fabric unwinding roll 110 and two transfer rolls for transferring a fabric loosened from the fabric unwinding roll to the sprayer.

If the far-end feeder 10 is composed only of the roughing rollers 110, it is not possible to transfer the raw fabric to the sprayer in a tangled state. Therefore, two feed rollers are required to feed the raw fabric to the sprayer 20 in a state of being held firmly.

The first conveying roll 120 of the two conveying rolls is positioned below the fabric releasing roll and the second conveying roll 130 is positioned at the same height as the fabric releasing roll 110.

Accordingly, the fabric unwound from the fabric unwinding roll 110 is pulled in a flat state while passing through the first conveying roll 120 positioned at the lower side, and the fabric is further uniformly conveyed through the upper second conveying roll 130 It can be transferred to the spray part.

The fabric can be transported in a state in which the fabric is unfolded through the roll structure as described above, thereby preventing wrinkling of the fabric and uniform spraying of the pretreatment liquid.

The far-end discharge unit 40 may also include two transfer rolls and a far-end winding roll as in the far-end feeder 10.

In this case, the far end feeding unit 10 is fed with the fabric end in the order of the fabric unwinding roll 110, the first feeding roll 120 and the second feeding roll 130, The roll 430, the first conveying roll 420, and the raw material winding roll 410 in this order.

The fabric discharge unit 40 may be wound in a state in which the fabric is held in a taut state to prevent the fabric from being folded or rolled up.

Therefore, the first conveying roll is positioned below the second conveying roll and the raw-end winding roll, and the raw material flowing into the raw-end winding roll can always be maintained in the state of being held, thereby preventing the failure in winding.

4 is a cross-sectional view of a sprayer according to a preferred embodiment of the present invention.

Referring to FIG. 4, the spray unit 20 includes a frame 210 having a pretreatment liquid tank 211 and a support roll 212 for supporting a raw material to be supplied, And an injection module 220.

5, the pretreatment liquid tank 211 is detachably mounted inside the frame 210, and the pretreatment liquid supplied from the pretreatment liquid tank 211 is sprayed onto the fabric through the injection module 220 do.

The injection module 220 includes a pressure tank 221 for providing a pressure for transferring the pretreatment liquid stored in the pretreatment liquid tank to the injection nozzle unit, a nozzle pipe 222 for transferring the pretreatment liquid to the injection nozzle unit, A spray nozzle unit 223 for spraying the pretreatment liquid supplied from the pipe, and a lift unit 224 for moving the spray nozzle unit up and down.

The spray nozzle unit 223 is configured such that a plurality of spray nozzles are installed at regular intervals, and the width of the spray nozzle unit is determined according to the width of the fabric.

The spray nozzle unit 223 is disposed perpendicularly to the longitudinal direction of the raw fabric, and serves to uniformly spray the pretreatment fluid in the entire width direction of the raw fabric.

Therefore, when the injection nozzles are arranged for each injection range of each injection nozzle and the injection nozzles are arranged so as to overlap the injection range excessively, unnecessary pre-processing liquid consumption occurs due to overlapping injection regions, and when the injection nozzles are disposed outside the injection range, An area where the liquid is not sprayed may occur. Therefore, it is preferable that the spray nozzle is arranged to be slightly smaller than the spray range or the spray range of the spray nozzle.

In addition, in order to uniformly spray the pretreatment liquid on the entire fabric to be conveyed, not only the interval of the injection nozzles but also the injection pressure and the feed speed of the fabric are very important.

For example, if the feed rate of the raw material is excessively slow compared to the injection pressure, a redundant injection region is generated to waste the pre-processing liquid. If the feed rate is excessively high, a region to be transferred is generated without being injected.

Therefore, it is preferable that the control unit 50 controls the injection pressure of the injection nozzle to a minimum pressure capable of covering the feeding speed of the raw end.

Further, by controlling the elevation unit 224 to move up and down, it is possible to control the injection of the pretreatment liquid to the far end at the optimum injection distance.

6 is a cross-sectional view of a heater unit according to a preferred embodiment of the present invention.

6, the heater unit 30 includes a heat frame 310 including a storage box 311 and a support roll 312 for supporting and transporting a raw material, and a cloth 310 formed on the heat frame and sprayed with a pretreatment liquid. And a heater module 320 for drying the heater module 320.

The heater module 320 may include a heater 322 and an elevating unit 321 for moving the heater up and down.

The heater 322 may be a near-infrared lamp that emits near infrared rays to dry the fabric.

The near-infrared rays have a characteristic that the wavelength is much shorter than the far-infrared ray, the penetration is deep, the linearity is strong due to the characteristics of the wavelength, and the heat is transmitted only through the object without heating the air.

Therefore, when the heater 322 is formed of a near-infrared lamp, it is not necessary to preheat the heater 322, so that the drying preparation time of the fabric can be shortened and productivity can be improved.

The heater 322 may be arranged in a plurality of rows in the longitudinal direction of the fabric in order to maximize the drying effect in a short time. Since the pretreatment liquid has to be dried in the process of passing through the heater part, the output of the heater should be determined according to the feeding speed of the raw material.

In other words, when the feeding speed of the far end is slow, the time of staying in the heater portion is long, so that the output of the heater can be set low. However, when the feeding speed is high, the time to stay in the heater portion is shortened. Therefore, the heater output should be set high.

Since the spray unit 20 and the heater unit 30 are formed inline along the stage, the pretreatment process time can be drastically shortened because the pretreatment liquid is dried immediately through the heater unit as soon as the pretreatment liquid is sprayed.

The control unit 50 includes a transfer control module 510 for controlling the transfer of the raw material, an injection control module 520 for controlling the injection of the pretreatment liquid, and a heater control module 530 for controlling the operation of the heater. .

Since the feed control module 510 controls the feed rate of the raw material for feeding the stage and the feed rate is determined according to the rotational speed of the roll included in the apparatus, The roll can be controlled by the rotation speed of the roll.

The injection control module 520 controls the injection pressure of the injection nozzle of the spray part.

The injection control module 520 can control the injection nozzles to be continuously or discontinuously injected. In the case of the non-continuous injection, when the injection nozzle injects the pretreatment liquid in a pulse form and the transfer speed is set to be slow Applicable.

The heater control module 530 controls the output of the heater to the far end.

Since the transfer control module 510, the injection control module 520, and the heater control module 530 are mutually influential control modules, they can be formed integrally so that they can be integrally controlled rather than individually controlled.

Hereinafter, the pretreatment liquid spraying method according to the present invention will be described.

The fabric unwinding roll and the fabric take-up roll according to the present invention can be combined with the roll frame in a detachable state. When a new fabric unwinding roll is mounted and all of the rolls wound on the roll are unwound, And the pre-processing can be performed by mounting the new fabric unwinding roll.

The raw material of the fabric unwinding roll is wound on the raw material winding roll while the raw material of the raw material unwinding roll is wound around the raw material winding roll, After the separation, a new fabric unwinding roll with no fabric wound is mounted.

First, when the fabric is unwound from the fabric unwinding roll, the fabric is transported to the spray unit while the fabric is flatly unwound through the first and second transport rolls.

The raw fabric is transported along the support roll of the spray part, and the pretreatment liquid injected from the upper injection nozzle is sprayed onto the fabric.

Since the injection nozzle continuously injects the pretreatment liquid in proportion to the speed at which the raw material is fed, a uniform pretreatment liquid can be injected and supplied to all the raw material portions passing through the injection nozzle.

The raw material to which the pretreatment liquid is sprayed is transferred to the heater unit.

The raw material transferred to the heater unit is transferred along the support roll while passing through the upper near-infrared lamp, and the pretreatment liquid is dried.

When passing through the heater unit, the pretreatment liquid sprayed onto the fabric is completely dried and transferred to the tail end discharge unit.

When the yarn is fed to the yarn discharging unit, the yarn is wound on the yarn winding roll through the second yarn and the first yarn feeder to complete the process.

In the present invention, since all of the processes are in-line, and the fabric is wound on the fabric take-up roll, the pretreatment liquid injection, the drying and the discharge are performed in the inline process from the supply of the fabric to the fabric releasing roll. It is very easy.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: fabric supply part 20: spray part
30: heater part 40:
50:

Claims

A fabric supply unit for supplying a fabric required for pretreatment;
A spray unit for spraying a pretreatment liquid onto the raw material fed from the raw material feeding unit;
A heater unit for drying the pretreatment liquid sprayed through the spray unit;
A raw material discharging unit for discharging the raw fabric dried through the heater unit;
A controller for controlling the transfer of the raw material, the spraying of the pre-treatment liquid, and the heater;
Wherein the fabric feeder, the sprayer, the heater, and the fabric outlet are in-line.

The method according to claim 1,
The fabric feeder
A fabric unwinding roll for unwinding and feeding the wound fabric;
A first transfer roll formed at a lower portion spaced apart from the fabric unwinding roll;
And a second transport roll spaced from the first transport roll and formed at the same height as the fabric unwinding roll.

The method according to claim 1,
The fabric outlet
A second transfer roll;
A first transfer roll formed at a lower portion separated from the second transfer roll;
And a fabric take-up roll spaced apart from the first feed roll and formed at the same height as the second feed roll and winding the fabric.

The method according to claim 1,
The spray portion
A frame;
And a jetting module formed on the upper portion to jet a pretreatment liquid.

5. The method of claim 4,
The frame
A support roll for receiving the pretreatment liquid tank for supplying the pretreatment liquid to the injection module and supporting the movement of the raw material;
The injection module
A pressure tank for supplying an injection pressure for transferring the pretreatment liquid stored in the pretreatment liquid tank to the injection nozzle unit;
A nozzle tube for transferring the pretreatment liquid to the spray nozzle unit;
A spray nozzle unit for spraying the pretreatment liquid supplied from the nozzle tube, and an elevation unit for moving the spray nozzle unit up and down.

The method according to claim 1,
The heater
A heat frame including a support roll for supporting and transporting the fabric;
And a heater module formed on the heat frame and having a heater for drying the raw material on which the pretreatment liquid is sprayed and a lifting unit for moving the heater up and down.

6. The method of claim 5,
The heater
And a near infrared ray lamp.

The method according to claim 1,
The control unit
A transfer control module for controlling the transfer of the fabric;
An injection control module for controlling the injection of the pretreatment liquid;
And a heater control module for controlling the operation of the heater to optimally control the feeding speed of the fabric, the jetting pressure of the jetting nozzle, and the output of the heater.

9. The method of claim 8,
The transport control module
Controlling the rotational speed of the roll included in the apparatus to control the conveying speed of the raw material for conveying the stage;
The injection control module
Adjusting the injection pressure of the injection nozzle, controlling the continuous or non-continuous injection of the injection nozzle;
The heater control module
And controls the output of the heater to be emitted to the fabric.