KR100964550B1 - Pretreatment apparatus for Digital Textile Printing textile - Google Patents

Abstract

The present invention relates to a pretreatment apparatus of a digital textile printing (Digital Textile Printing) fabric that is secured in common, the improved structure, the pretreatment process of the fabric through the dip coating, the pretreatment process of the fabric through key coating, The pretreatment process of the fabric is possible through the knife coating, and various types of fabric can be coated by securing commonality. In particular, the structure is simplified, thus reducing the cost of manufacturing and making the volume compact. The present invention relates to a digital textile printing fabric pretreatment apparatus having improved space utilization.

DTP, Coating, Pretreatment Process, Dip Coating, Kiss Coating, Knife Coating, Load Cell

Description

Pretreatment apparatus for Digital Textile Printing textile

The present invention relates to a pretreatment apparatus of a digital textile printing (Digital Textile Printing) fabric that is secured in common, the improved structure, the pretreatment process of the fabric through the dip coating, the pretreatment process of the fabric through key coating, The pretreatment process of the fabric is possible through the knife coating, and various types of fabric can be coated by securing commonality. In particular, the structure is simplified, thus reducing the cost of manufacturing and making the volume compact. The present invention relates to a digital textile printing fabric pretreatment apparatus having improved space utilization.

Recently, due to the increase in income level, not only functionality but also design is emerging as a subject of quality standards, and accordingly, it is required to release products with various designs in the textile and dyeing industry. In recent years, the industry's production trend is gradually shifting from small-scale production to multi-product rather than mass production.

On the other hand, the so-called digital textile printing method for printing a variety of patterns using a digital printing device on a variety of fabrics in recent years has become popular.

In the printing process of the fabric through the digital textile printing method, as shown in FIG. 1, a coating film is coated on the fabric through a pretreatment apparatus, and a design is applied to the fabric on which the coating is formed through the DTP apparatus. After printing, the printed ink is fixed and colored on the fabric, and then unfixed ink or remaining coating chemicals are removed.

Here, the working conditions of the pretreatment for coating the coating film on the fabric vary depending on the type of fabric, in particular the viscosity of the coating liquid.

For example, in the case of a relatively low viscosity or a coating liquid, a dip coating method of applying a coating liquid to the fabric by immersing the fabric in the coating liquid is mainly used.In the case of a relatively high viscosity coating liquid, a coating liquid is applied to the surface of the fabric, and then a knife is applied. Knife coating method is mainly used to scrape the coating liquid and disperse it throughout the surface of the fabric.In the case of a coating liquid having a medium viscosity, the coating liquid is buried on the drum surface, and then the fabric is passed through the kiss drum to the coating liquid. The kiss coating method for asking this is mainly used.

By the way, the conventional pretreatment apparatus is configured to perform only one production method of the pretreatment method, so that only a pretreatment of the fabric by one production method is possible through a single pretreatment device.

Therefore, in the field, it was difficult to pre-treat the fabric by various pretreatment methods including the dip coating method, the kiss coating method, and the knife coating method without having all the pretreatment devices according to the pretreatment method.

Of course, all of these pretreatment units can be installed on site to implement the required pretreatment according to the type of coating liquid or fabric. However, considering the recent trend of small quantity production of many types, all of these expensive pretreatment units are installed on site. Pretreatment is practically difficult considering the cost and space aspects.

In addition, the conventional pretreatment device is bulky because it focuses on productivity, and each component is manufactured in a large capacity including each coating liquid storage tank, so that a large installation space is required, and a small amount of pretreatment is required. In addition, the problem that excessive loss of the fabric and the coating liquid caused by the production, such as filling the coating liquid to a certain level in the coating liquid storage tank made of large capacity is pointed out, which is not preferable in terms of economical efficiency. In addition, in the conventional pretreatment apparatus, the apparatus is enlarged, so that it is difficult for a single worker to manage and additional input of manpower is required.

An object of the present invention devised to solve the above problems, the pre-treatment process of the fabric through the dip coating method, the pre-treatment process of the fabric through the kiss coating method, the pretreatment of the fabric through the knife coating method It is designed to enable all processes to enable various kinds of coatings through securing commonality. In particular, the structure has been simplified, resulting in reduced costs, and compactness to improve space utilization. An object of the present invention is to provide a pretreatment apparatus for digital textile printing.

The above object is achieved by the following configuration provided in the present invention.

The pre-treatment apparatus of the digital textile printing fabric secured commonality according to the present invention,

In a single body, the dip coating module and kiss coating module and knife coating module is provided,

The dip coating module includes a feed roller for transferring the fabric of the fabric feeder in one direction, a dewatering roller for conveying the fabric conveyed through the feed roller and squeezing the excess coating liquid applied to the fabric; A coating liquid storage tank disposed between the supply roller and the dehydration roller and storing the coating liquid; It comprises a immersion roller for immersing the fabric in the coating liquid by guiding the fabric formed between the supply roller and the dehydration roller into the coating liquid storage tank,

The kiss coating module includes: a discharge roller for transferring the fabric to be conveyed through the supply roller of the dip coating module; A coating liquid storage tank disposed between the supply roller and the discharge roller and storing the coating liquid; Is installed on top of the coating liquid reservoir is rotated in the state in which the coating liquid stored in the coating liquid reservoir on the surface, and adheres to the fabric conveyed in one direction through the supply roller and the discharge roller on the top includes a kiss drum to bury the coating liquid on the fabric on the fabric Configured by

The knife coating module is disposed between the supply roller constituting the dip coating module and the discharge roller constituting the kiss coating module to scrape the coating liquid supply unit for dispensing the coating liquid in the gel state to the fabric surface, and the coating liquid administered to the fabric surface. Consists of a knife to expand,

According to the viscosity of the coating solution is characterized in that configured to perform a pre-treatment to select any one of the coating module of the dip coating module, kiss coating module and knife coating module to coat the fabric.

Preferably, one side of the feed roller is provided with a single load cell for measuring the tension of the fabric, the control unit is measured by measuring the tension of the fabric conveying the feed roller and the dehydration roller, the feed roller and the discharge roller through a single load cell By controlling the speed of each roller, the tension of the fabric is maintained to be constant.

More preferably, the coating liquid reservoir of the dip coating module is installed on the main body in a rotating structure, the piston of the overturn cylinder is bound to the coating liquid reservoir, so that the overturning of the coating liquid reservoir by the entry and exit of the overturn cylinder piston. It is composed.

On the other hand, a guide member is disposed on one side of the discharge roller, and a conveyor belt is installed between the discharge roller and the guide member in which the coating liquid supply part of the knife coating module and the knife are located on the upper surface, and the surface through the coating liquid supply part of the knife coating module. The fabric receiving the coating liquid is configured to scrape the coating liquid through the knife while the bottom surface is supported by the conveyor belt, and a brush rotated by an electric motor is disposed on one side of the conveyor belt to coat the knife. The gel coating liquid on the conveyor belt is quickly removed by the brush.

As described above, the present invention proposes a pre-treatment apparatus of a digital textile printing fabric provided with a dip coating module, a kiss coating module, and a knife coating module in a single body.

By suggesting such a device, the operator can freely choose a coating method appropriately according to the viscosity and the fabric of the coating liquid to perform coating, thereby ensuring commonality, and improving the space utilization in comparison with the conventional devices. By reducing the number of workers can be managed by one worker can have the advantage of saving manpower.

In particular, in the present invention, in implementing such an apparatus, each component such as a feed roller, a load cell, and a discharge roller is organically disposed in the main body, and each coating module is configured to share various components including the feed roller and the load cell. By doing so, the structure is simplified.

In addition, in the present invention, the fabric is supported through the conveyor belt, the coating through the knife coating module is configured to be more stable to ensure the stability of the quality.

In addition, in terms of management, the present invention is configured to enable the overturning of the coating liquid storage tank of the dip coating module, and to provide a brush on the conveyor belt, so that the material can be easily finished after further work.

Hereinafter, with reference to the accompanying drawings will be described in detail the pre-processing device of the digital textile printing (Digital Textile Printing) ensured commonality proposed as a preferred embodiment in the present invention.

1 is a state diagram showing a pretreatment process of a fabric through a pretreatment apparatus of a digital textile printing fabric proposed as a preferred embodiment in the present invention, Figure 2 is proposed as a preferred embodiment in the present invention Figure 3 shows the overall configuration of the pre-treatment device of the digital textile printing (Digital Textile Printing) fabric, Figure 3 is a dip coating in the pre-treatment apparatus of the digital textile printing fabric shown in FIG. 4 shows the kiss coating module in the pre-treatment apparatus of the digital textile printing fabric shown in FIG. 2, and FIG. 5 shows the D-tee shown in FIG. It shows the knife coating module in the pretreatment device of the digital textile printing fabric.

The pretreatment apparatus 1 of the digital textile printing fabric having the commonality secured in the preferred embodiment of the present invention basically has a dip coating module 20 and a kiss on a single body 10. The coating module 30 and the knife coating module 40 are provided so that the operator can pre-treat the fabric through the dip coating method according to the viscosity of the coating liquid, the pre-treatment process of the fabric through the kiss coating method, and the fabric through the knife coating method. It is configured to select and implement the pretreatment process.

The pretreatment apparatus 1 of the D.T. fabric is disposed between the fabric supply device 100 and the drying furnace 200, as shown in FIG. 1, and the fabric is supplied through the fabric supply device 100 ( T) After coating the coating liquid through any one of the coating module (20, 30, 40), it is configured to supply to the drying furnace 200, the fabric having a coating layer dried through the drying furnace 200 is on one side It is rewound through the installed fabric winding device 300.

Here, the dip coating module 20 to coat the fabric in the coating liquid to apply the coating liquid, as shown in Figures 1 to 3, the supply roller 21 for transferring the fabric (T) of the fabric supply apparatus 100 in one direction; Dehydration roller 24 for dewatering and conveying the fabric conveyed through the supply roller 21; A coating liquid storage tank 22 disposed between the supply roller 21 and the dehydration roller 24 and storing the coating liquid; It comprises a immersion roller 23 to guide the fabric (T) formed between the supply roller 21 and the dehydration roller 24 to immerse in the coating liquid storage tank (22).

Referring to the drawings showing a preferred embodiment, the supply roller 21 and the dehydration roller 24 is configured to include a drive member 21a and a driven member 21b disposed on one side of the drive member 21a, respectively. **** Unexplained symbol M on each drawing is an electric motor that provides torque. ****

The rotating bracket 21c fixing the driven member 21b is installed in the main body 10 in a sliding structure, and the rotation bracket 21c is connected to a clearance adjusting cylinder 24d to provide a clearance adjustment cylinder 24d. By the expansion and contraction action, the gap between the driving member 24a and the driven member 24b of the dewatering roller 24 can be adjusted.

That is, when the clearance adjusting cylinder 24d is extended, the gap between the driving member 24a and the driven member 24b of the dehydration roller 24 is narrowed, and conversely, when the clearance adjustment cylinder 24d is deflated, the dehydration roller ( The gap between the driving member 24a and the driven member 24b of the 24 is widened. Through this gap adjustment, the amount of dehydration of the coating liquid written on the fabric T can be freely adjusted through the dip coating.

In addition, the coating liquid reservoir 22 is basically made of an upper open case provided with an opening and closing outlet 22c at the bottom, in this embodiment the coating liquid reservoir 22 is installed on the shaft (10a) in the main body 10 The overturning cylinder 22b is connected to the coating liquid storage tank 22, and the overturning of the coating liquid storage tank 22 is performed by the stretching action of the overturning cylinder 22b.

Therefore, it is possible to quickly discharge the coating liquid and the foreign matter contained in the coating liquid storage tank 22 through the overturning of the coating liquid storage tank 22, it may have the advantage of easy cleaning after the operation.

The dip coating process of the fabric through the dip coating module 20 configured as described above is transported in one direction through the supply roller 21 and the dehydration roller 24 in a state in which the coating liquid is stored in the first coating liquid storage tank 22. When the fabric is immersed in the coating liquid of the coating liquid storage tank 22 through the immersion roller 23, the coating liquid is coated on the fabric (T).

Then, the fabric (T) is dewatered by pressing while passing through the dehydration roller 24, the final supply to the drying furnace 200 installed on one side in a state in which the coating liquid of the fixed amount.

And the kiss coating module 30, the discharge roller 33 for transporting the fabric (T) conveyed through the supply roller 21 of the dip coating module 20 as shown in Figures 1 and 2 and 4 )Wow; A coating liquid storage tank 31 disposed between the supply roller 21 and the discharge roller 33 and storing the coating liquid; Installed on top of the coating liquid storage tank 31 is rotated in the state in which the coating liquid stored in the coating liquid storage tank 31 on the surface, the fabric conveyed in one direction through the supply roller 21 and the discharge roller 33 on the top (W) It is configured to include a kiss drum 32 to adhere the coating liquid on the surface by adhering a).

Referring to the drawings showing a preferred embodiment the lower portion of the kiss drum 32 is kept locked in the coating liquid stored in the coating liquid reservoir 31, the plate-shaped scraper 32a is disposed on one side of the kissing drum 32 .

Therefore, the coating liquid on the surface of the kiss drum 32 is uniformly developed through the plate-shaped scraper 32a, and the developed coating liquid is transported to adhere to the upper portion of the kissing drum 32 later. It is coated on the surface of the kiss coating.

On the other hand, the knife coating module 40 is a discharge roller 33 constituting the feed roller 21 and the kiss coating module 30 constituting the dip coating module 20 as shown in Figure 1 and 2 and 5 as shown in FIG. A coating liquid supply part 41 disposed between the discharging layer and administering the coating liquid in a gel state to the surface of the fabric T, and a knife 42 for scraping and developing the coating liquid administered to the surface of the fabric T. .

In the present embodiment, between the coating liquid supply part 41 and the knife 42 constituting the knife coating module 40 and the kiss drum 32 and the coating liquid storage tank 31 constituting the kiss coating module 30 ( The arc-shaped developing member 60 for developing T) and the pressing roller 70 for pressing and transferring the fabric T discharged through the developing member 60 are sequentially disposed.

Referring to the drawings showing a preferred embodiment, the knife 42 is fixed to the lifting cylinder 42a is configured to adjust the vertical height by the expansion and contraction of the lifting cylinder 42, the lifting cylinder 42 and the knife The hinge part 42 is provided between 42, and is comprised so that the angle of the knife 42 can be adjusted.

In addition, the deployment member 60 is formed of an arc body that is curved to bend, and the fabric T is developed while being transported in a state adhered to the surface of the deployment member 60 protruding to be curved in an arc shape.

In addition, the pressure roller 70 is in a form in which the guide member 71 and the pressure member 72 are in close contact with each other, and the pressure member 72 is coupled to the pressure cylinder 74 and the link 73 to form a pressure cylinder. The distance between the guide member 71 and the pressing member 72 is freely adjusted by the expansion and contraction of 74. By pressing the guide member 71 and the pressing member 72, the pressing state of the fabric T passing therebetween is controlled.

Therefore, the raw material T supplied to the knife coating module 40 enters the developed state through the developing member 60 and the pressure roller 70 deployed in an arc shape, and then the coating liquid supply part 41 in the original fabric. Through the gel-like coating solution is administered, the coating solution is scraped through the knife 42 to be developed by the knife coating is uniformly coated on the surface of the fabric (T).

In this embodiment, in implementing such a knife coating module 40, by installing a conveyor belt 43 between the guide member 71 and the discharge roller 33 of the pressure roller 70, the pressure roller ( 70) and the fabric T to be transported between the discharge roller 33 are configured to be transported in a stable state on the conveyor belt 43.

When the fabric T supplied for the knife coating module 40 is transferred to the conveyor belt 43, the fabric T is cut in the state in which the bottom surface is supported by the conveyor belt 43. 42) the coating liquid is scraped through, so that the coating liquid can be more uniformly applied to the fabric surface.

And, in the present embodiment in installing the conveyor belt 43 between the pressure roller 70 and the discharge roller 33, the brush (rotated by the electric motor M on one side of the conveyor belt 43) ( 44) is excreted.

Therefore, since the gel coating liquid on the conveyor belt 43 is quickly removed by the brush 44 during the knife coating process, the coating liquid on the conveyor belt 43 during the knife coating process may cause a defect in the fabric. Problems can be prevented.

On the other hand, in the present embodiment, the feed roller 21 and the dehydration roller 24 in the dip coating process, or the fabric (T) which is transferred through the feed roller 21 and the discharge roller 33 in the kiss coating or knife coating process By maintaining a constant tension at all times, while ensuring a stable coating environment to prevent damage to the fabric.

In this embodiment, in order to implement such a function, each coating module (20, 30, 40) is supplied and transported to each coating module (20, 30, 40) through a single measuring means without having to arrange the tension measuring means for each By making the tension measurement of the far-end fabric T common, the structure is simplified.

In this embodiment, the load cell 50 for measuring the tension through the load is used as the tension measuring means of the fabric, the supply roller 21 and the dehydration roller 24 by the load value measured by the load cell 50 ), Or the rotational speed of the supply roller 21 and the discharge roller 33 is controlled by a controller (not shown), so that the tension of the fabric T supplied to each coating module 20, 30, 40 is always single. It is measured by the load cell 50 and is kept constant.

Therefore, the pretreatment apparatus 1 of the D.T fabric of the present embodiment is basically a single body 10, a dip coating module 20, a kiss coating module 30, and a knife. The coating module 40 has a structure provided, and alternatively, the pretreatment process of the fabric through the dip coating method according to the viscosity of the coating solution, the pretreatment process of the fabric through the kiss coating method, and the pretreatment process of the fabric through the knife coating method. It is possible to implement

In this way, the fabric coated with the coating liquid is supplied to the drying furnace through any one of the pretreatment process of the fabric through the dip coating method, the pretreatment process of the fabric through the kiss coating method, and the pretreatment of the fabric through the knife coating method. At this time, the tension between the discharge roller 33 and the drying furnace 200 is measured by the tension measuring means 80 disposed on one side of the main body, through which a controller (not shown) is provided in the drying furnace 200. By controlling the rotational speed of the feed roller (not shown), the coated fabric is supplied to the drying furnace with a constant tension and dried. The fabric, which is supplied to the drying furnace and dried, is then printed with various patterns on the surface through a digital textile printing apparatus.

1 is a state diagram showing a pretreatment process of a fabric through a pre-treatment device of a D.T. (Digital Textile Printing) fabric proposed in the present invention,

Figure 2 shows the overall configuration of the pre-treatment device of the digital textile printing fabric proposed as a preferred embodiment in the present invention,

FIG. 3 shows a dip coating module in a pretreatment apparatus of a digital textile printing fabric shown in FIG.

Figure 4 shows the kiss coating module in the pre-treatment device of the digital textile printing fabric shown in Figure 2,

FIG. 5 shows a knife coating module in the pre-treatment apparatus of the digital textile printing fabric shown in FIG. 2.

**** Explanation of symbols for the main parts of the drawing ****

1. Pre-treatment device of D.T.P fabric

10. Body

20. Dip Coating Module 21. Feed Roller

21a. Drive member 21b. Driven member

22. Coating solution reservoir 22a. shaft

22b. Overturn cylinder 22c. outlet

23. Immersion Roller

24. Dewatering Roller 24a. Driving member

24b. Driven member 24c. Swivel bracket

24d. Clearance adjustment cylinder

30. Kiss Coating Module 31. Coating Liquid Storage Tank

32.The Kiss Drum 32a. Scraper

33. Discharge Roller

40. Knife coating module 41. Coating liquid supply part

42. Knife 42a. Lifting cylinder

43. Conveyor Belt 44. Brush

50. Load cell 60. Deployment member

70. Pressure roller 71. Guide member

72. Pressure member 73. Link

74. Pressurized cylinder 80. Tension measuring means

100. Fabric feeder 200. Drying furnace

T. Fabric C. Coating Liquid

M. Electric Motor

Claims (6)

In a single body, the dip coating module and kiss coating module and knife coating module is provided, The dip coating module includes a feed roller for transferring the fabric of the fabric feeder in one direction, a dewatering roller for conveying the fabric conveyed through the feed roller and squeezing the excess coating liquid applied to the fabric; A coating liquid storage tank disposed between the supply roller and the dehydration roller and storing the coating liquid; It comprises a immersion roller for immersing the fabric in the coating liquid by guiding the fabric formed between the supply roller and the dehydration roller into the coating liquid storage tank, The kiss coating module includes: a discharge roller for transferring the fabric to be conveyed through the supply roller of the dip coating module; A coating liquid storage tank disposed between the supply roller and the discharge roller and storing the coating liquid; Is installed on top of the coating liquid reservoir is rotated in the state in which the coating liquid stored in the coating liquid reservoir on the surface, and adheres to the fabric conveyed in one direction through the supply roller and the discharge roller on the top includes a kiss drum to bury the coating liquid on the fabric on the fabric Configured by The knife coating module is disposed between the supply roller constituting the dip coating module and the discharge roller constituting the kiss coating module, the coating liquid supply unit for dispensing the coating liquid in the gel state to the fabric surface, and scraping the coating liquid administered to the fabric surface It is configured to include a knife to expand, In accordance with the viscosity of the coating solution of the dip coating module, kiss coating module and knife coating module of any one of the coating module, characterized in that configured to perform a pre-treatment for coating on the fabric Pretreatment unit. According to claim 1, wherein one side of the feed roller is provided with a single load cell for measuring the tension of the fabric, the control unit by measuring the tension measurement of the fabric conveying the feed roller and the dehydration roller, the feed roller and the discharge roller through a single load cell The pre-treatment apparatus of the D.Teepi fabric which ensured commonality by controlling the speed of each said roller so that the tension | tensile_strength of a fabric may be kept constant. According to claim 1, wherein the supply roller and the dewatering roller is configured to include a driving member and a driven member which is disposed on one side of the driving member and the rotating member is applied to the rotational force from the electric motor, the shaft is installed on the rotation bracket, The rotating bracket fixing the driven member is installed in the main body with a sliding structure, and the rotating bracket is connected to the gap adjusting cylinder, and is configured to adjust the gap between the driving member and the driven member of the dehydration roller by the expansion and contraction action of the gap adjusting cylinder. A pre-treatment device of D T-fi fabric which ensures common use. According to claim 1, wherein the coating liquid reservoir of the dip coating module is installed on the main shaft in a rotating structure, the piston of the overturn cylinder is bound to the coating liquid reservoir, it is possible to overturn the coating liquid reservoir by the entry and exit of the overturn cylinder piston. A pre-treatment apparatus of D.T.P fabric having a common property, characterized in that configured to. The coating member of claim 1, wherein a guide member is disposed on one side of the discharge roller, and a conveyor belt is installed between the discharge roller and the guide member on which the coating liquid supply part of the knife coating module and the knife are positioned. The pre-treatment apparatus of D.T.P. fabric of common use, characterized in that the fabric is coated with the coating liquid on the surface through the supply part so that the coating liquid is scraped through the knife while the bottom surface is supported by the conveyor belt. The method of claim 5, wherein the brush is rotated by an electric motor on one side of the conveyor belt, the gel coating liquid on the conveyor belt during the knife coating process is configured to be quickly removed by the brush Pre-treatment device of secured D-P fabric.

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