DE1621729A1 - Method and device for applying decorative effects from sheet materials - Google Patents

Description

COMMONWEALTH SCIENTIFIC AND INDUSTRIAL KESMRCH ORGANIZATION, 314 Albert Street, East Melbourne, Victoria (Australia)

Method and device for applying decorative effects on sheet materials

The invention relates to improved methods and devices for applying or producing decorative effects on sheet materials. In particular, the invention relates to methods and devices for applying a liquid color medium such as a dye solution or dye paste or a pigment in liquid suspension to any type of sheet or ban material such as paper, textiles, metals and wood, to give a variety of piebald, © l = - j to achieve dotted and similar effects. Attachment in simple orphan controlled if © sd®n

BATH ORIGINAL

009831 / Ό5-28 - j> -

The term "color medium" should not only be suitable for everyone © Dye solution or dye paste or pigment suspension, but also substances such as Dye intermediates and dye binding reagents, Bleach and the like

The invention proposes a method for applying decorative effects to sheet-like materials, which consists in applying a liquid or similar color medium in the manner described below to a surface which has a series of openings, so that the medium is retained by these openings, whereupon a strong gas stream from the surface thus treated is passed to at least one I ¹ eil to the medium of at least the openings some in the form of entrained in the gas stream or suspended (droplets to be removed, following which a sheet or sheets öd, like * of about decorating material directly n @ b @ n the surface mentioned and brought into the path of the gas stream with the suspended paint droplets, whereby these droplets are deposited on the sheet or the like

The invention also provides an apparatus for attaching or eyeing decoration sifekiin proposed on sheet-like materials that

009831/0528 ■ bad oiwnm.

- ■} - ■■

is characterized by having a surface with a Large number of spaced apart openings, Means for applying a color medium to this surface so that the same is in the openings sets and gets stuck there, against devices for guiding a sharp or strong stream of grass at least one part of this area and one after the other through at least some of the openings and facilities for guiding sheets of the material to be decorated by the gas flow immediately next to or above or below the one provided with the openings Has surface.

The shape of the gas flow depends on how it is generateda In general, the gas flow is conical or pyramidal. It should be noted, however, that the gas stream has more color medium in the area of its longitudinal axis than in the area of its outer interfaces with it, so that the color medium is not evenly distributed in the gas stream. Where this is not If desired, this problem can largely be overcome by using multiple gas streams. It however, it is difficult to determine the extent of the intersection or overlap of adjacent gas streams at the point to monitor where they hit the sheet to be decorated, and it is also difficult »the to direct different gas flows so that they are

00 9831/052 8 - 4 -

overlap only so far that the color medium is evenly distributed in the color streams. Therefore puts the use numerous gas flows are not a satisfactory solution.

It has now been found that the problem of uneven Distribution of the dye droplets is therefore satisfactory can be solved by using a gas stream which is directed onto a rope of the above-mentioned area and is moved over this area in order to take the ink medium with it from other parts of the area as well. At a Embodiment of the invention is a dimension of the gas flow impinging on the surface, for example its width, much smaller than the corresponding dimension or dimension of the area, also taking precautions are taken to the gas flow over this area in the direction of their corresponding dimension or To let dimension go back and forth.

According to a preferred particular embodiment of the invention, the device moves for advancement of the sheet, suction or the web of material od, the like. In the gas flow of this sheet or the like., During the gas flow sweeps over the surface once, in a direction substantially parallel to said surface and essentially perpendicular to the lateral direction of movement of the gas flow by a significantly shorter distance before, preferably a fifth or less of the diameter of the gas flow where it hits the sheet or the like.

meets ft. 0 0 9 8 31/0528

-p-

BATH

As a precaution, this will be done with a decoration effect stranding sheet intermittently advanced, and only when the gas flow once completely over the -ölatt is crossed out and before he again begins to paint over the sheet, if desired however, the sheet can also be advanced practically continuously while the gas flow sweeps over it although the parb medium will be deposited on the sheet in small strips if not the speed of the movements of the blade or the speed of the gas flow movements accurately monitored and controlled,

Usually one is used to apply parb medium or several pairs of squeezing rollers are provided, the above-mentioned area lying between these rollers and the rollers and this! surface can be moved relative to each other. In addition, gate precautions are taken to]? Arbmedium to be applied to one or more of these rollers or to the surface. In a particularly expedient embodiment, the gas flow is by means of a nozzle directed at said surface, which has the shape of a slot and a variable size may have. This nozzle can be arranged on a trolley.

6 -

«AD

009831/0628 -.; . ■. " ^BA

be net, which also carries the squeegee rollers and the over said surface can be moved back and forth.

Preferably the surface is a fixed surface and expediently a band with a length that is significantly longer than its width, which is arranged on edge.

However, the surface can also be a movable surface. According to one embodiment, the surface is a conveying surface such as an endless belt or a rotatable disc, wherein a container for the same is provided for applying the ink medium, through which the conveying surface runs through. In this embodiment depends the time required to create the decoration effects from the speed of movement of the conveyor surface ab · It has been found that irregular coats of paint media are picked up by this movable surface and / or that ropes of the color medium from this surface be thrown off ^ when the surface is at a speed exceeding a certain speed passes through the ink container.

It has been found that this solves this problem the conveyor surface can be guided between one of the several pairs of squeeze rollers, the same has passed the ink medium container.

009831/05 28 ^'BAD

On the other hand, you can also use the color medium container do without and pass the conveying surface between one or more pairs of squeeze rollers after the ink medium has been applied to the surface or to one or more of the nip rollers.

It is also possible to prevent some of the openings in the surface from loading the gas flow through or color medium, so that a certain Cough is scored. The openings can be even or distributed over the area according to a specific template.

Bas coughs of the droplets to be deposited on the leaf can be easily controlled and changed, isdera ra * s the Henge and the viscosity of the on the surface on » brought color medium, the speed with which the sheet or the like through the gas flow with the color

passes through,
droplets / and / or the speed of the gas flow and the speed at which the gas flow sweeps over the surface changes.

In the drawing is an embodiment of a device for carrying out the invention shown, namely shows

8th -

009831/0528 _bM)

Pig. 1 is a schematic side view of the device,

Pig, 2 a schematic plan view of the device,

Pig. 3 a plan view of part of the device,

Pig. Figure 4 is a plan view of a rope of the Pig device. 3 in enlarged dimensions,

Pig. 5 shows a section along line 5-5 from Pig. 4,

Pig. 6 a son of line 6-6 from Pig · 5 and

Pig. 7 shows a section along line 7-7 from Pig. 5.

First of all, the device will be seen on the basis of the schematic Representations from Pig. 1 and 2, which is followed by the description of details according to the figures 3 to 7 connects.

According to Pig. 1 and 2, the device has a band 1 made of metal mesh made of 0.76 mm thick wires stainless steel and has 9.5 meshes / cm. This band is approximately 12.5 mm wide. The tape is arranged so that it is horizontal in its longitudinal extension Plane, while its width extends in the vertical plane to the drawing. Volume 1

009831/0528 _{BAD0R1G! NAL} -9-

is clamped at both ends so that it is under one Tensile stress is maintained.

At an air distribution head 2, which is supplied via an air line 3 with air from a fan (not shown) is fed, there is a nozzle 4 which has a vertical outlet slot which is 6.35 mm long and is 3.18 mm wide. This slot is on one side of the band 1 at a distance of about 19.5 mm arranged by the same in such a way that it hits an air jet 6 at high speed on this belt directs. The air distribution head 2 is arranged to pass from one end of the tape to the other Can be moved back and forth so that the air jet 6 is able to sweep over the entire strip 1.

On both sides of the belt 1 there are pairs of nip rollers 7, 7 ^ and 8, 8 ⁴ made of rubber so that they can be moved back and forth from one end of the belt 1 to the other can pass unhindered between the two pairs. The belt 1 runs between the rollers of these pairs of nip rollers. Since the nip rollers are in contact with the belt, they are set in rotation when they are moved back and forth along the belt 1.

- 10 -009831/0528 _e , _o oB \ ^ ^L

Each of the pairs of squeeze rollers is fed via a feed pipe 9 and 11, which is and walking and rotating the nip rollers applied to the belt and held between the loops of the same will. By adjusting the pressure of the nip rollers against the belt, the amount of the zwisohen can Mesh of the tape withheld color medium can be adjusted.

A material web to be provided with a decorative effect 12, for example a cloth web, runs from a roll © 13 over guide rollers 14, 15, 16 and 17, tension rollers 18 and 19 and drive rollers 21 and 22. The drive roller 22 has a slightly larger diameter than the drive roller 21 to ensure that the part of the between these rollers Cloth is kept under tension. The drive rollers 21 ra, d 22 ensure that the material web 12 on the d © ra air distribution head 2 opposite Seit® d © @ Baad © @ 1 at a distance of about 31 cm is led past by the same.

In operation, the Yorriclitimg the color medium is the reciprocating nip rollers 7 and 8 or _o 7 * and SD in metered M © length added and the nip rolls applied to the strip 1, so that it remains stuck between the meshes of this volume *

- 11 -

As soon as the air jet 6 through the mesh of the belt hindu step becomes that which is located between the tesciaan Earbmedium in Forra fine 'JJröpfchen 23 with-giant. The beam strolling with the 'üröpfehen strikes the material web 12 and covers a surface about 31 cm long and about 16 cm wide. If the Air jet 6 completely covered the strip 1 once has »the material web is 12 ura about 5 cm in Correspondingly, on each approximately 5 x cm wide strip, the Material web 12, six layers on top of each other. Dye applied medium.

The construction of the proposed device will then be described in connection with Pig «3 to 7.

The tape 1 is stretched between pins 32 and 33, which are fixed vertically upright on a base plate 31 · These pins 32 and 33 can be rotated to adjust the tension of the belt 1.

There are also two rails 34 on the base plate 31 and 36 arranged on which © in carriage 37 and sprockets 38 and 39 - are supported «The chain sprocket 38 is free-running, while the chain

12.-

009831/0528

tenzabnrad 39 from a motor 41 via a gear 42, Sprockets 43 and 44 and a chain 46 are driven is. As a result, the sprocket 39 can drive an endless chain 47, which via the sprockets 38 and 39 is performed. One of the pins of the chain 47 is extended near the outside and ends in a roller 48 which slidably located in a vertical slot 49 of the carriage 37. Thus, a movement of the chain 47 in a reciprocating movement of the carriage 37 along the rail 34 can be implemented.

The carriage 37 carries the nozzle 4 and the air distribution head 2, which are vertically adjustable and pivotable by means of pins 51. Each pin 51 is each provided with a nut and washers and protrudes through a vertical slot 54 in the carriage 37

The carriage 37 also carries guide rollers 56 which it guide along the rail 34 during its movements.

The nip rolls 7, 7 'and 8, 8' of the two pairs of nip rolls are mounted on the carriage by means of shafts 57. These shafts 57 are in roller bearings 58, 58 ^ and 59, 59

stored. The roller bearings 58 and 59 are fixedly attached to the carriage 37, while the roller bearings 58 and 59 on each a fork 61 are attached, each of which can be pivoted about a bolt 62. With the help of

0 0 9 8 3 17 0 5 2 8 _BAD ORiG ¹ NAL - 13-

springs 63 are the bearings 58 and 59 against the Rolling bearings 58 and 59 pulled so that the nip rollers 7 and 8 are pressed against the nip rollers 7 and 8 will.

The feed pipes 9 and 11 are also on the carriage 57 Brewed · Below the squeegee rollers, there is also a drip container 66 on the carriage 37.

The tube container 66 is attached to a not shown Reservoir for color medium via a pipe 65 below Utilizing a pump, also not shown, connected over to each end of the rail 34 provided »microso holder, also not shown can be operated. These microswitches are actuated directly by the carriage 37 when it reaches the ends of the rail 34. The reservoir for the ÜParbniedium is connected to the supply pipes 9 and 11, so that this. Pipes Parbmedium is fed due to gravity.

The guide rollers 14 to 17, the tension rollers 18 and 19 and the drive rollers 21 and 22 are on shields 67, the drive rollers 21 and 22 via chain sprockets 68 and chains 69 from the transmission 42 in are driven intermittently in the manner described above.

9831/0528 - 14 -

By. Changing the of the nip rollers 7 »7 and 8, 8 pressure exerted on the band 1, the length by which the material strips 12 are passed each time the band is passed over 1 is moved forward by the air jet 6, and by changing the speed of the air jet 6 can a variety of speckled, spotted, dotted or other decorative effects on the material web be achieved.

It can also be achieved by vertical adjustment of the air jet 6 relative to the tape that the entire Color medium located in the band or only part of it is carried away by the air jet. By. Changing the angular position of the nozzle 4 with respect to the material web 12, the angle of incidence of the air jet 6 which entrains the droplets 25 can be changed. It should be noted that the longitudinal axis of the air jet 6 preferably does not run at a 90 ° angle to the material web 12, i.e. the air jet preferably does not impinge perpendicularly on the material web, since it is easy at such an angle of incidence Scatters or eddies at the outer boundary of the Luftstrajet® can occur, which cause an uneven® Can cause coating of the material web 12 »

- 15 009831/0528

BATH ORIGINAL

By using several of these devices, it is possible to create multi-colored patterns or patterns with one machine. To create designs.

It is also possible to arrange the band 1 in such a way that its width extends in the horizontal plane and its length in the vertical plane.

Patent claim e ι

~ 7

009831 / 0S28 ^ OR \ Q ^INAt

Claims (30)

• IT claims: 1R9179Q 1. Method for creating decorative effects sheet-like or sheet-like materials, characterized in that that a liquid or pasty color medium on a flat! 'rager with a variety of Openings, which can hold the color medium, is applied, whereupon a strong gas flow at least on a part of the surface of the support is directed to at least the color medium to be released from some of the openings in the form of fine droplets, which are finely dispersed by the gas jet are carried away, and that a sheet or the like. Of the material to be decorated next to or behind the Carrier and in the path of the gas jet containing the color droplets in fine distribution, so that the ink droplets are deposited on the sheet. 2. The method according to claim 1, characterized in that that the gas flow is directed and on part of the surface of the carrier having the openings is moved over this area in order to also take the ink medium with it from other parts of the carrier and remove. - 2 -. 009831/0528 BATH ORIGINAL 1621721 3. The method according to claim 1 or 2, characterized in that the one provided with the openings the area of impacting grass flow is significantly smaller, at least in one direction or dimension than the dimension of this area is in the same direction, and that the stream of grass is this area in this direction and sweeps over «, 4. The method according to one or more of claims 1 to 3, characterized in that the to be decorated Material in a direction substantially parallel to the direction of transverse movements of the grass stream Is advanced plane and perpendicular to this direction, and that the width of the gas flow there, where it hits the material, measured in the feed direction of the material web, is essential is greater than the distance covered by the material web during the gas flow once is passed across the material web. 5. The method according to claim 4, characterized in that that the material to be decorated is practically held still, while the gas flow with the The area provided with openings is painted over. - ■ - 3 -. 009831 / OS28 6. The method according to claim 4, characterized in that the material to be decorated is advanced at a practically constant speed during the Gas flow sweeps over the area provided with the openings. 7. The method according to one or more of claims 1 to 6, characterized in that with the Opened surface is a fixed surface. 8. The method according to claim 7, characterized in that that the surface provided with the openings is a band which is much longer than it is wide and extends in the longitudinal direction in the horizontal plane and in the transverse direction in the vertical plane. 9. The method according to one or more of claims 1 bie 6, characterized in that with the Area provided with openings is a moving area. 10. The method according to one or more of claims 1 to 9s, characterized in that the pattern or the design according to which the droplets are deposited on the material to be decorated, changed will. - 4 0 0 9 8 31/0528 11. The method according to one or more of the claims 1 to 10, characterized in that the route around which the material to be decorated is advanced, while the gas flow is carried out with the openings provided area is swept over once, changed. 12. The method according to one or more of the claims 1 to 11, characterized in that the amount and viscosity of the provided with the openings Surface applied color medium and the. The speed of the gas flow can be changed. 13 · Method according to one or more of the claims 1 to 12, characterized in that the speed at which the gas flow over the with the openings provided area migrates, is changed. 14 · Method according to one or more of the claims 1 to 13, characterized in that certain of the openings of the surface to prevent the passage the gas flow or the uptake of color medium prepared, for example closed, to achieve a specific pattern or design. . -. 5 -00 9831/052 8 15. The method according to one or more of the claims 1 to 14, characterized in that the openings are uniform or according to a predetermined pattern or design can be distributed on the surface of the! 16. Device for achieving decorative effects on sheet-shaped or web-shaped materials, in particular for performing the method according to one or more of claims 1 to 15, characterized in that characterized in that it has a sheet-like carrier (1) with a plurality of spaced apart arranged openings, devices for applying a taring medium on this carrier, so that the same is held in the openings, means for directing a sharp or strong stream of gas against at least part of the surface of the support and successively through at least some of the Apertures and means for the passage of a sheet or web (12) of the material to be decorated Has material through the gas stream (6) behind the carrier. 00 9 83 1/0528 17. The device according to claim 16, characterized in that the gas stream (6) on a part of the surface of the carrier (1) is directed and movable over the surface of the carrier to the color medium of some To remove ropes of the same. 18. Apparatus according to claim 16 or 17, characterized in that that the gas stream (6) where it impinges on the surface of the carrier (1) in a Direction has a much smaller dimension than the beam in the same direction and that the gas flow can be moved back and forth across the surface in this direction » 19 · Device according to one or more of the claims 16 to 18, characterized in that they have guides (14 to 21) for the sheet-like or web-like © material (12), which the material in a plane through the gas stream (6), which is essentially parallel to the lateral plane of movement of the gas stream (6), the advance taking place in a direction perpendicular to the plane of movement of the gas stream runs, and during a transverse movement of the gas stream over the! much smaller than the width of the gas flow? in the direction of advance, is «, - 7 0 0 9 8 31/0528 20 · Device according to claim 19 »characterized in that that the advance of the material to be decorated (12) during the sweeping of the surface of the support (.1) is practically interrupted by the gas flow. 21. The device according to claim 19, characterized in that the advance feed the material to be decorated (12) at a substantially constant speed through the gas stream (6) during the Gas stream simultaneously sweeps laterally over the surface of the carrier (1). 22. The device according to one or more of claims 16 to 21, characterized in that the carrier (1) Has a fixed surface. 23 «Device according to claim 22, characterized in that that the carrier iet a band (1), which is an essential has greater length than width and its length in the horizontal plane and its Width extends in a vertical plane. 24. The device according to one or more of claims 16 to 2I _8, characterized in that the carrier has a movable surface » - 8 009831/0528 BAD ORiGl [SJAL 25. The device according to claim 24, characterized in that the carrier is a rotatable disc. 26. The device according to one or more of claims 16 to 25, characterized in that it is for application of the color medium has one or more pairs of squeeze rollers (7, 7; 8, 8), wherein the carrier (1) is located between the pinch points of these rollers and the rollers and the carrier are relative are mutually movable, and that means (9, 11) for supplying color medium to one or several of the nip rollers and / or are provided on the carrier. 27. The device according to one or more of claims 16 to 26, characterized in that the nip rollers (7, 7; 8, 8) on the carrier (1) in its Can be moved back and forth in the longitudinal direction. 28. Device according to one or more of claims 16 to 27, characterized in that the gas stream (6) with the help of a nozzle (4) is directed onto the surface of the carrier (1) which is at a distance of the surface can go back and forth in front of it. - 9 009831/052 8th 29. Apparatus according to claim 27 and 28, characterized by gelcenn- 1 1 shows that the nip rollers (7, 7; 8, 8) and the nozzle (4) are arranged on a ¥ agen (37). 30. Apparatus according to claim 28 or 29, characterized in that the opening of the nozzle (4) can be changed is. ^ßAD "0 09831/0528