Method for producing of multiple-color pile patterns

FIELD: textile industry, in particular, finishing of articles and materials for various purposes with pile patterns by electric flocking process.

SUBSTANCE: method involves producing patterns of predetermined shape by forming pile pattern at zone separation boundary provided that separation boundary potential is equal to U1-Uh1/h, where U is potential of upper boundary of flocking zone, h1 is height of lower flocking zone, h is height of entire flocking zone. This is provided by sequentially applying piles of different color in electric field divided into two zones in vertical plane, with electric field intensity during final application process carried out in homogeneous field having one zone being set equal to that of the entire space of both zones by setting potential of boundary separation zone equal to U1=Uh1/h, where U is potential of flocking zone upper boundary, h1 is height of flocking zone lower boundary, h is height of the entire flocking zone.

EFFECT: provision for producing of patterns of predetermined shape.

1 dwg, 1 tbl

 

The invention relates to the textile industry, in particular to furnish products and materials for various purposes fluffy drawings for technology electropositive.

A method of obtaining pile of drawings by consecutive application of adhesive to the pattern of cloth of different colors through the mesh templates. The essence of the method consists in the application of the adhesive pattern on the template, followed by successive flocking through the mesh templates pile of different colors /by A.S. USSR №1143784 Device for obtaining multicolor flokirovanie material, MCI D 04 H 11/00 and 05 In 5/00, publ. bull. No. 9, 1985/. Each pile should fill in his part of the figure, with strict observance of boundaries.

The disadvantage of this method is that to ensure clear boundaries, colors, templates should be placed at a minimum distance from the adhesive surface (1÷2 mm), and the slightest shift in the horizontal plane (0.1-0.2 mm) leads either to the appearance of unfilled gaps or unwanted overprinting. As a consequence, a very laborious and time consuming is to set up the equipment at the transition to the new figure. Therefore, to implement the method requires extremely expensive equipment (block through the mesh templates obviously reduces the density of the pile is, get on the material and leads to an increase in time flocking.

A method of obtaining multicolor pile of drawings /Pat. No. 2172367, IPC7D 04 H 11/00. A method of obtaining a pile of drawings. Berchem E.N., Ivanov O.M., Kozlov M.V., publ. 20.08.2001, bull. No. 23/ by sequential deposition of cloth of different colors in a nonuniform electric field, divided vertically into two zones with the electric field strength on the surface of the material specified for each application in the range from 1 to 8 kV/see

Getting a pile of drawings as follows.

Pile each color on the adhesive surface put on the queue. The first pile is put on the unit having the intermediate electrode with intensity inhomogeneous electric field in the lower zone 1÷8 kV/see the Pile under the action of a nonuniform electric field forms on the adhesive surface figure. Then the material is coated with a first pile is placed on another flokiruyutsya installation, which was pre-loaded second pile and which has an intermediate electrode having a different shape, with the tension set at the same position. The number of repetitions of this operation depends on the number of selected colors. The final step material coated with a picture placed on flokiruyutsya installation bespoljarnogo electrode, i.e. in a homogeneous electric field. During the last flocking fibers fill the space remaining free.

This technology has several advantages, for example, does not require additional equipment for the printing ink, as well as extremely sophisticated equipment for precise alignment of the drawings, as the settings for multicolor flocking carousel. Allows to obtain geometric or abstract designs (patterns) with smooth or sharp color transitions. The necessary equipment for the implementation of the technology is quite simple and allows you to easily change the resulting image. Therefore, you might receive as recurring and exclusive (non-recurring) drawings. However, the disadvantage of this method is that it is impossible to obtain images of a given shape, i.e. it is possible to obtain only geometric or abstract patterns. This is because it is difficult to determine the trajectory of the pile in a nonuniform electric field, because it depends on its potential, the properties of the pile and form the intermediate electrode. The shape of the pattern obtained on the material, does not reproduce the shape of the intermediate electrode.

The technical result of the proposed solutions is to eliminate these disadvantages, and it enabled the industry to achieve the image of a given shape due to the formation of NAP pattern on the boundary of the separation zone, provided job potential boundaries of separation is equal to U1=Uh1/h, where U is the potential of the upper border zone flocking, h1- the height of the lower zone flocking, h - the height of the entire zone flocking.

This object is achieved in that conduct consistent application of cloth of different colors in an electric field, divided vertically into two zones, with the latter applying in a uniform field, with one zone, the electric field set the same in all space, both zones by setting the potential of the boundary of the separation zone, is equal to U1=Uh1/h, where U is the potential of the upper border zone flocking, h1- the height of the lower zone flocking, h - the height of the entire zone flocking.

The novelty of the proposed method is that the electric field set equal to two zones by setting the potential boundaries of separation equal to U1=Uh1/h, which gives the opportunity to get on the material of the drawings specified form.

The drawing shows the scheme of obtaining multicolor pile of drawings, where : a is the upper area of flocking, In the lower area of flocking, 1 - upper electrode 2 to the intermediate electrode 3 is lower electrode 4 to the adhesive surface, U is the potential of the upper electrode, U1the potential of the intermediate electrode, hsub> 1- the height of the lower zone flocking, h - the height of the entire zone flocking.

Example 1. The bristles of a different color is applied sequentially on the adhesive surface 4 (for example, fabric coated with an adhesive based on acrylic binder TUBVINIL 235 German firm NTS). The first pile of polyamide fiber color red length of 0.7 mm and a linear density of 0.33 Tex put in an electric field, divided vertically into two zones a and b by means of the intermediate electrode 2. The potential of the upper electrode is set to 60 kV, the interelectrode distance h = 12 cm the height of the intermediate electrode h1=6, Therefore, the potential of the intermediate electrode is set equal to U1=Uh1/h=60·6/12=30 kV. Thanks to this capacity, served on the boundary of the separation zone, the field strength in the space of both zones will be the same and the same as in the same space without intermediate electrode, i.e. without boundary separation, but at the same distance h=12 cm and the potential of the upper electrode U=60 kV. First flocking is carried out at the installation with the intermediate electrode, which has openings, for example, in the form of a rectangle. Under these conditions, the intermediate electrode does not change the potential distribution between the electrodes 1, 3 and the pile passes through the holes, not deviating from the trajectory, i.e. as and when Otsu is under the intermediate electrode. Thus, the material obtained image corresponding to the shape of the holes on the intermediate electrode. The material is then placed in the next installation with polyamide pile of blue length 0.7 mm, with a linear density of 0.33 Tex. Conditions of application are the same as in the previous case (h=12 cm h1=6 cm, U=60 kV, U1=30 kV), but this setting has a different shape of the holes of the intermediate electrode, for example, in the form of a trapezoid. The number of repetitions of this operation depends on the number of selectable colors. If the color is 3, then the last drawing is carried out, for example, a pile of viscose fiber yellow length is 1.0 mm, the linear density of 0.33 Tex. in an electric field having a single zone flocking, i.e. without intermediate electrode to fill the area of the adhesive surface remaining free. For this operation were used, for example, the following conditions: h=10 cm, U=50 kV. The material is then placed in a drying chamber for heat-setting adhesive. Drying is carried out in two stages: 5 minutes at a temperature of t=95-100°and 10 minutes at t=140°C. After the above operations, the product was purified from excess lint.

The table presents options for obtaining pile of drawings on the proposed method considers only flocking the first color, as the next application are carried out EN is logical. Where h1- the distance between the intermediate and lower electrodes; U1(estimated) value of the intermediate potential electrode, calculated from the relation U1=Uh1/h; U1(submitted) - set the potential of the intermediate electrode; ΔU is the difference between the calculated and supplied potentials; E (lower zone) - the electric field in the lower zone flocking (1); E (upper zone) is the electric field strength in the upper zone flocking (figure 1 A). All the options pile of drawings listed in the table obtained when the potential of the upper electrode U=60 kV, the distance between the upper and lower electrodes h=12 cm and time flocking t=10 S. In the table presents two options for the location of the intermediate electrode: 1 - the intermediate electrode is located in the middle between the upper and lower electrodes (examples 1-5); 2 - intermediate electrode is located closer to the lower electrode (examples 6-8).

In table p.1. and claim 6. specified conditions, clearly relevant to the claims, i.e. when the shape and size of the pile of the figure correspond to the pattern on the intermediate electrode. In section 2. shows a variant in which the size of the resulting NAP figure has decreased, and the shape of the picture has not changed. In section 3 it is shown an option to increase the NAP figure, no change is of the form, thus there is some blurring of boundaries NAP pattern. In case of increase of the difference between the calculated and supplied by the potential size of NAP figure is significantly reduced (4 and 7) or increases (item 5 and item 8), while the distorted shape of the resulting figure. When a significant increase in the size of the picture is blurring the boundaries of NAP pattern.

The prototype does not allow to reproduce the shape of the figure defined by the intermediate electrode. When trying to get the rectangle for this method, you must use an intermediate electrode which consists of metallic wires intersecting and forming a cell in the form of a rectangle. Get felted figure has the shape of a quadrangle with a strongly concave sides. This is because the line inhomogeneous electric field is distorted and there is a complex motion path of the pile.

The method of obtaining multicolor pile of drawings, consisting of sequential application of cloth of different colors in an electric field, divided vertically into two zones, with the latter applying in a uniform field, having at least one zone, wherein the electric field set the same in all space, both who he is by setting the potential of the boundary of the separation zone, equal to U1= Uh1/h, where U is the potential of the upper border zone flocking, h1- the height of the lower zone flocking, h - the height of the entire zone flocking.



 

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FIELD: textile industry, in particular, finishing of articles and materials for various purposes with pile patterns by electric flocking process.

SUBSTANCE: method involves producing patterns of predetermined shape by forming pile pattern at zone separation boundary provided that separation boundary potential is equal to U1-Uh1/h, where U is potential of upper boundary of flocking zone, h1 is height of lower flocking zone, h is height of entire flocking zone. This is provided by sequentially applying piles of different color in electric field divided into two zones in vertical plane, with electric field intensity during final application process carried out in homogeneous field having one zone being set equal to that of the entire space of both zones by setting potential of boundary separation zone equal to U1=Uh1/h, where U is potential of flocking zone upper boundary, h1 is height of flocking zone lower boundary, h is height of the entire flocking zone.

EFFECT: provision for producing of patterns of predetermined shape.

1 dwg, 1 tbl

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