A method of obtaining a pile surface on a three-dimensional product (options)

 

(57) Abstract:

The invention relates to light industry, in particular to the surface finish of bulk products multicolor fluffy patterns of technology electropositive. The essence of the invention lies in the fact that to get a pile of multi-color patterns on the surface of the solid products, coated with adhesive, the application of cloth of different colors in an electric field carried out consecutively one or more times in a nonuniform electric field, divided in the direction of movement of the pile into two zones so that far from plateruena surface area is, the electric field is close to zero, and in the near zone, there is the possibility of measuring the tension at each application (i.e. about plateruena surface) from 2 to 12 kV/see Recent application is carried out in a uniform electric field with intensity, set within, similar to the near zone. According to the second variant of the configuration of the power lines of the electric field provide almost constant when changing the orientation of the product during application of the pile. For applying multicolor knotted patterns on the product of dielectric material on providesa liquid. To obtain relief pile of patterns in the second or subsequent application use the pile with length li1.5 or l/li1,5, where l is the pile length, with any subsequent application. The technical result of the invention is the possibility of making a pile on the surface of bulk products in the form of multicolor patterns with simultaneous adjustment of contrast and relief. 2 S. and 4 C.p. f-crystals, 1 tab., 2 Il.

The invention relates to the field of light industry, in particular to the surface finish of bulk products multicolor fluffy patterns of technology electropositive.

A method of obtaining a flat multicolor pile of drawings drawing through net templates Warsaw different colors. The method consists in applying adhesive pattern on the template with the next sequential flocking individual sites through the net templates pile of different colors. C. the USSR 1143784, a Device for obtaining multicolor flokirovanie material, MCI D 04 H 11/00, 05 At 5/00, publ. bull. 9, 1985). Each pile should fill in his part of the figure, with strict observance of borders without gaps and overlapping colors.

The known method (report on research and the designs of furniture for the house, offices and public premises", the register. 01970006376 untic, pages 34 and 35 attached) receive the monochrome of fluffy coating on the surface of the solid products, which consists in the application of the NAP on the surface of the product, pre-coated with adhesive, in an electric field. There are two options for the implementation process: changing the orientation (rotation and/or movement of the product during application of the pile and consistent, repeated drawing of the pile on the stationary product (rotating and/or moving of products is carried out, pre-stopping the process of applying hair).

The disadvantage of both variants of this method is the impossibility of obtaining multicolor pile of patterns on the surface plateruena bulk products. Even with consistent application of cloth of different colors on the different products manage to get only a colored stain with a gradual color transition.

The technical result of the proposed solutions is to eliminate these disadvantages, namely the possibility of making a pile on the surface of bulk products in the form of multicolor patterns with simultaneous adjustment of contrast and relief.

Set zadachakli, the application of cloth of different colors in an electric field carried out consecutively one or more times in a nonuniform electric field, divided in the direction of movement of the pile into two zones so that far from plateruena surface has an electric field strength close to zero, and in the near zone, there is a possibility to change the tension at each application (i.e. about plateruena surface) from 2 to 12 kV/see Recent application is carried out in a uniform electric field with intensity set within, similar to the near zone. The second option is the difference in achieving this goal is that the configuration of the power lines of the electric field in the near zone provide almost constant when changing the orientation of the product during application of the pile. For applying multicolor knotted patterns on the product of the dielectric material (including the adhesive layer with low electrical conductivity) of its inner surface is pre-moistened with a conductive liquid. To obtain relief pile of patterns in the second or subsequent application use the pile with a length of 1idefined by the relation 1i/11,5 or 1/1i

The novelty of the proposed method consists in successive drawing patterns pile of different colors in a nonuniform electric field, divided in the direction of movement of the pile into two zones, and the electric field strength in the far plateruena surface area is close to zero, and near it is set in each case from 2 to 12 kV/cm For obtaining NAP pattern on the surface of the product, changing the orientation in the flocking process, provide a constant configuration of the power lines inhomogeneous electric field in the near zone in the coating process of the NAP. When applied to the pile on the dielectric product with an adhesive layer having a low electrical conductivity, the inner surface of the product is pre-moistened with a conductive liquid. To obtain relief pile of patterns in the second or subsequent application use the pile with length lidefined by the ratio of li/l1,5 or l/li1,5, where l is the length of the pile PR and the first application, and li- the length of the pile, with any subsequent application.

For a better understanding of the way here is a variant of the installation shown in Fig. 1, which shows: a high voltage source of IVN (2) podle into two zones - far - between hopper (1) and the intermediate electrode (3) and near - between the intermediate electrode (3) and the lower mesh electrode (7). The electric field in the far zone is close to zero, because the hopper (1) and the intermediate electrode (3) connected to the same potential (2). Tensions in the near zone vary by changing the potential of the intermediate electrode (3). The product (5) is fixed on the tool (4). The inner surface (5) is treated with a conductive liquid (6) and by contact (8) is connected to ground. The lower electrode (7) is made in the form of rare grounded grid, to exclude the application of the NAP on the product below.

In Fig. 2 shows a variant of receiving tricolor NAP pattern on the product (5), for example, a cylindrical shape. Presents the stepwise application of the pile of three colors (I, II, III) two different versions of the intermediate electrode (3) separating the electric field into two zones, and variants of patterns (9), we obtain the three-dimensional product. Here is shown the application of the second phase of the NAP of greater length (10) to obtain a relief pattern.

Obtaining multicolor pile of patterns on the surface of the solid products (5) on pervert covered with glue. Then the product is placed in a nonuniform electric field (Fig.2, POS. 1) between the intermediate (3) and bottom (7) electrodes. The pile of the first color is applied in a non-uniform electric field generated by the intermediate electrode (3), when tension on the surface of the product from 2 to 12 kV/see

The electric field in the near zone set in the range from 2 to 12 kV/cm by adjusting the potential of the intermediate electrode (3) by a high voltage source (2). For small values of tension felted pattern will be more "fuzzy" (aliasing), at large - more contrast. For applying the same pile or pile of a different color in another place the surface of the product, the process is repeated, first changing the orientation of the product on the same installation or on the installation with a pile of other colour (II). Thus the second application of the pile is carried out, for example, another configuration of the power lines inhomogeneous electric field, defined by the shape of the intermediate electrode (3), to obtain a different pattern (9), for example, as shown in Fig.2 (II).

The last drawing of the pile (Fig.2, POS. III) carry out, placing the product (5) in a uniform electric field between the flat is Elah (2-12 kV/cm). When this exercise filling pile all the remaining surface is covered with glue.

In the second variant the difference is that the configuration of the power lines inhomogeneous electric field in the near zone remain constant when changing the orientation of the product during application of the pile. This is achieved in that the intermediate electrode (3) is fixed on the snap (4) together with the product (5), surrounding it from all sides, allowing the tension of the inhomogeneous electric field on the surface of the product (5) is practically constant when changing the orientation of the product during flocking. Through this pattern of the pile of the same color is applied on the entire surface of the product, changing its orientation (rotating and/or moving it) in the process of applying the pile.

If the product (5) and the adhesive has a low conductivity, so that in the process of applying the charge NAP on its surface does not have time to drain through the contact (8) and distorts the electric field at the surface of the product (5), blurring the resulting felted pattern, the internal surface of hollow articles (5) moisten the adhesive conductive fluid (6). It sums up the contact (8), which gives the opportunity to create the desired neodnoznachnogo NAP pattern on the surface of the solid products (5), for example, when the second application (Fig.2, POS. II) use the pile length 1i1,51, where 1 is the length of the pile when it is first applied.

As an example, we give a variant of receiving tricolor NAP pattern on the surface of the solid products of cylindrical shape in the first embodiment.

The inner surface (5) moisten conductive fluid (6), for example, any electrolyte (1-5% solution of NaCl in water). The product (5) is fixed on the tool (4) with the surface wetted by the electrolyte (6), for example, the ground conductor (8). The surface of the product (5) (e.g., polystyrene) are covered by a uniform layer of adhesive (e.g. glue urethane prepolymer SKU-PFL-100). The product (5) attached to the snap (4), is placed in a nonuniform electric field, divided into two zones, between the intermediate (3) and the lower grounded electrode (7). Put the pile (polyamide, length 1.0 mm, the linear density of 3.3 dtex) black (Fig.2, POS. 1) when tension about 4 kV/see After the first application of the pile product (5) is placed in a similar setting with a pile of blue (polyamide, length 1.5 mm, the linear density of 3.3 dtex) and, for example, an intermediate electrode of a different shape (Fig.2, POS. II) change ori the only time how many is required to obtain the desired pattern.

If you want to get tri-colored felted pattern, the NAP of the third color (grey, polyamide, length 1.0 mm, the linear density of 3.3 dtex) is applied by placing the product (5) in a uniform electric field between the planar mesh bottom of the hopper (1) and flat mesh bottom electrode (7). The tension on the surface is set to about 8 kV/cm and filled with a pile of the rest of the area covered by the adhesive (Fig.2, POS. III). The product (5) you can move and rotate in the flocking process. The product is then placed in a kiln or dried at room temperature. After purification from negrepelisse pile we get a three-dimensional product with tri-colored pile pattern, and the pattern of black cloth has a fuzzy boundary, and the pile of blue has clearer boundaries and pronounced relief.

The process of obtaining multicolor NAP pattern on the second version differs in that the snap-in addition to product fix the intermediate electrode. This electrode is stationary relative to the surface of the product and it connects, for example, the potential of the upper electrode. The process of applying the pile takes place simultaneously with izmenennom change and/or change the mode flocking and other installation put the pile of the second color. To obtain a three-color pattern pile last color applied in a uniform electric field similar to the first option.

Specific variants of this process are given in the table.

The second column shows which option (first or second) carry out obtaining multicolor pattern. Columns 3 to 5 show the geometrical parameters of the pile. In the 6th column presents the ratio of the lengths of the used pile to evaluate the effect of the relief pattern. In the seventh column lists the diameter of the product. This is because all the data in the table refer for example to the products of cylindrical form, as to them, the electric field on the surface is higher than under the same conditions on the plane and depends on the curvature of the surface. In columns 8 through 10 presents the approximate value of intensity of an inhomogeneous electric field on the surface of the product during application of each pile. In the 11th column is checked: is the application of the first and second pile on the stationary product or orientation in the process of applying changes. the 12th column shows: high or low conductivity of the surface of the product, i.e. distorts if the charge brought by the pile, electricity is redstapler standard mode of application of the pile to obtain enough contrast tri-color pattern. 2nd and 3rd rows show that the reduction in electric field strength (4 kV/cm) when applying the pile leads to getting more blurred (low-contrast pattern. The 4th row shows that changing the orientation of the product (rotation or translation) during application of the pile for the 1st option excludes the possibility of NAP pattern. At the same time when using the 2nd option, changing the orientation of the product during the flocking does not violate the NAP pattern, as shown in the 11-th line. 5th row shows a high contrast all knotted patterns in the use of high strength values, and using a low tension significantly deteriorating the orientation of the pile on the surface of the product (line 6). Using too high values of electric field intensity, sometimes there are electrical breakdowns (line 7), which may cause damage to the pile surface and damage to equipment. Rows 8 and 9 show that when the ratio of the lengths Warsow less than 1.5 times the relief pattern is weak, and when the ratio is 1.5 or more relief pattern quite clearly expressed. Rows 10 and 12 show that the low conductivity of the surface leads to a very strong napredujemo way. Last, the 13th row indicates that the method described in the prototype, it is not possible to obtain a multicolored pile of patterns, even if on different products consistently put a pile of different colors.

Thus, in comparison with the prototype of the claimed method allows to increase the range of the obtained images by expanding the color gamut and create a large range of both colored and textured patterns.

1. A method of obtaining a pile surface on a three-dimensional product, which consists in causing the pile in the electric field at the surface pre-coated with adhesive, characterized in that the application of cloth of different colors perform consecutively one or more times in a nonuniform electric field, divided in the direction of movement of the pile into two zones, and far from plateruena surface has an electric field strength close to zero, and in the near zone tension varies during the application of each color pile from 2 to 12 kV/cm, and the last drawing is carried out in a uniform electric field intensity within a similar close range.

2. The method according to p. 1, characterized in that before applying the cloth on the adhesive surface diele is under item 1 or 2, characterized in that when the second or subsequent application use the pile with length lidefined by the ratio of li/l1,5 or l/li1,5, where l is the length of the pile when it is first applied, and li- the length of the pile, with any subsequent application.

4. A method of obtaining a pile surface on a three-dimensional product, which consists in causing pile on the adhesive covered surface in the electric field when the orientation changes of the product during application of the pile, characterized in that the application of cloth of different colors perform consecutively one or more times in a nonuniform electric field, divided in the direction of movement of the pile into two zones, and far from plateruena surface has an electric field strength close to zero, and in the near zone tension varies during the application of each color pile from 2 to 12 kV/cm at a constant configuration of the lines of force of the electric field, and the last drawing is carried out in a uniform electric field intensity within a similar close range.

5. The method according to p. 4, characterized in that before applying the cloth on the adhesive surface of the dielectric products its inner surface moisten electropo the x use the pile with length lidefined by the ratio of li/l1,5 or l/li1,5, where l is the length of the pile when it is first applied, and li- the length of the pile, with any subsequent application.

 

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