CN201231590Y

CN201231590Y - Transfer printing wheel ware with comb like pattern

Info

Publication number: CN201231590Y
Application number: CNU2008201142334U
Authority: CN
Inventors: 李大章
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-28
Filing date: 2008-05-28
Publication date: 2009-05-06
Anticipated expiration: 2018-05-28

Abstract

The utility model provides a honeycomb-like pattern transfer printing wheel which is characterized in that a ceramic layer is formed on the surface of a roller; a plurality of hexagonal pattern units are formed on the surface of the ceramic layer, and the pattern units are tightly connected, with each side of each pattern unit connected with the bordering side of another pattern unit; and an axle threads through the axis of the roller and threads out from two ends of the roller, which correspond to the axis. Since the ceramic layer with better corrosion resistance than iron is formed on the roller, the transfer printing wheel has long service life, and since the pattern units are hexagonal, when the transfer printing wheel is used in the manufacturing process of a liquid crystal display, the transfer printing wheel can transfer smooth and even alignment films in assistance.

Description

The transfer printing wheel of tool honeycomb pattern

Technical field

The utility model refers to a kind of transfer printing wheel of tool honeycomb pattern especially about a kind of transfer printing wheel.

Background technology

One wheel with pattern can be used for many different technical fields, for example utilize wheel pattern transferring on laser light face paster, antifalsification label, or be used for LCD (liquidcrystal display, abbreviation LCD) mesh (Anilox) wheel of process technique, normally earlier on a roller, be formed with required pattern unit, utilize again this roller with the pattern unit transfer printing on object; Wherein this is applied to the mesh wheel of LCD process technique, it mainly is when being applied to be coated with alignment film, earlier with polyimides (Polyimide, be called for short PI) liquid distribution and floating on this mesh wheel, PI liquid is flowed in the pattern unit and be distributed on equably on the mesh wheel, so can utilize this mesh wheel that PI liquid is printed on a light sensation type resin (Asahi Kasei photosensitiveresin equably, be called for short APR) on the plate, then with transfer platen the PI liquid on the APR plate is printed to glass substrate again and become alignment film.

And the wheel that generally has pattern unit all is to utilize the iron material roller surface to be ground, after its lip-deep rough material removed, allow roller surface present the slightly effect of minute surface with polishing again, then again with mould in roller surface die casting go out desired the pattern unit of transfer printing, again roller surface is cleaned up at last, can finish a wheel with pattern unit.

Right because the corrosion resistance of iron material roller a little less than, after therefore repeatedly using, promptly can cause pattern unit to be out of shape, thereby shorten the service life of wheel because of iron material is corroded; In addition, because the material behavior of iron material roller and the restriction of die casting mode, therefore only can on roller, form circular or tetragonal pattern unit, yet in the LCD process technique for the mesh wheel of auxiliary coating alignment film, circular or tetragonal pattern unit often makes PI liquid can't be evenly distributed on the mesh wheel, thereby PI liquid can't be printed on the APR plate equably, cause follow-up when printing the PI liquid on the APR plate to glass substrate, not only can't print out smooth uniform alignment film, and the alignment film thickness that institute's transferability goes out only can be to 400 dust (angstrom;

).

From the above, existing wheel with pattern unit still has its defective that must overcome, and needs to be further reviewed, and seeks feasible solution.

The utility model content

For wheel is had preferable service life, and be more suitable for being used in LCD (liquid crystaldisplay, abbreviation LCD) on the process technique, main purpose of the present utility model is at the transfer printing wheel that a kind of tool honeycomb pattern is provided, it has preferable resistance to corrosion, and the utmost point is suitable for use on the LCD process technique.

For reaching the major technique means that aforementioned purpose takes be, make aforementioned transfer printing wheel comprise: a metal roller, be formed with a ceramic layer on its surface, be formed with a plurality of hexagonal pattern units that are again on the surface of this ceramic layer, and this pattern unit is close to arrangement, and each side of each pattern unit all is connected with the adjacent side of another pattern unit; One wheel shaft passes the axle center of this roller, and certainly on this roller the both ends of corresponding shaft core position pass.

Wherein, this pattern unit is honeycomb.

Utilize above-mentioned technological means, owing to be formed with the corrosion resistance ceramic layer good than iron material on the roller, therefore of the present utility model the wheel has long service life; In addition, when wheel of the present utility model is applied to the LCD process technique, hexagonal pattern unit can make polyimides (Polyimide, abbreviation PI) the liquid utmost point is evenly distributed on the wheel of the present utility model, make PI liquid can be printed on light sensation type resin (Asahi Kasei photosensitive resin equably, be called for short APR) on the plate, and be able on glass substrate transfer printing go out smooth evenly and be the alignment film of desired thickness.

Description of drawings

Fig. 1 is the outside drawing of the utility model one preferred embodiment.

Fig. 2 is the local surfaces vertical view of 244 times of the amplifications of the utility model one preferred embodiment.

Fig. 3 is the ceramic layer section and the side view of the utility model one preferred embodiment.

The primary clustering symbol description

10 rollers

11 ceramic layers

111 pattern units

20 wheel shafts

The specific embodiment

About a preferred embodiment of the transfer printing wheel of the utility model tool honeycomb pattern, see also shown in Figure 1ly, comprise a metal roller 10 and a wheel shaft 20.

Be formed with a ceramic layer 11 on the surface of above-mentioned metal roller 10, please cooperate consult shown in Figure 2, be formed with a plurality of hexagonal arbitrarily pattern units 111 that are on the surface of this ceramic layer 11, and this pattern unit 111 is close to arrangement, and each side of each pattern unit 111 all is connected with the adjacent side of another pattern unit 111; In present embodiment, between ceramic layer 11 and metal roller 10 surfaces, further have an accessory attachment layer (not shown), the effect of this accessory attachment layer is: because the adhesive force between ceramic particle and the iron is not good, if independent ceramic coated particle only, ceramic layer 11 may not peel off because of adhesive force is good, so go up the accessory attachment layer by spraying earlier, can increase the adhesive force of ceramic layer 11, again in the material of this accessory attachment layer, 70～80%, (Ni) forms by nickel, and remaining 20～30% is by WC-Co (WC-Co), chromium carbide (Cr ₃C ₂), chromium carbide nickel-chromium (Cr ₃C ₂-NiCr) form with chromium (Cr), and in the material of this ceramic particle, the 95%th, by chromium oxide (Cr ₂O ₃) form, reason is that chromium oxide can easily be cut by laser, and remaining 5% in the material of ceramic particle, then is by aluminium oxide (Al ₂O ₃), titanium oxide (TiO ₂), zirconia (ZrO ₂) and yttria (Y ₂O ₃) form, effect is to be to improve the corrosion resistance of ceramic layer 11 and to improve the easness that ceramic layer 11 is cut by laser; Wherein, described percentage all is weight percentage.In addition, each pattern unit 111 is an equilateral hexagon, and is 60 degree angles between the wantonly two oblique adjacent pattern units 111, and presents just like honey comb like pattern.

Above-mentioned wheel shaft 20 passes the axle center of this roller 10, and certainly on this roller 10 both ends of corresponding shaft core position pass.

Please cooperate in addition and consult shown in Figure 3ly, each pattern unit 111 is to be made of a depression, this depression be with the laser direct irradiation on ceramic layer 11 and be shaped; And when wheel of the present utility model is applied in LCD (liquid crystal display, be called for short LCD) in the fabrication steps of transfer printing alignment film to the glass substrate in, because the thickness of alignment film is the key factor that influences LCD video picture quality, the thickness of alignment film then is by polyimides (Polyimide accompanying on the wheel of the present utility model, abbreviation PI) amount of liquid is controlled, the width of each depression and the degree of depth then are whether influence the filling of PI liquid enough again, can PI liquid be transferred to the key element on light sensation type resin (AsahiKasei photosensitive resin the is called for short APR) plate fully when transfer printing; So the transfer printing wheel structure that the transfer printing alignment film is used is quite important.

Please cooperate and consult shown in the table, for example if design one has 300 screen densities (Line Per Inch; LPI) wheel, and the width of each depression is 76 to 80 microns (micron), the degree of depth is 18 to 30 microns, and the spacing between depression and the depression is 5 to 9 microns, then the alignment film thickness that goes out of institute's transfer printing is 1200 to 1800 dust (angstrom;

); If the wheel that design one has 500 screen densities, and the width of each depression is 43 to 47 microns, and the degree of depth is 11 to 16 microns, and the spacing between depression and the depression is 4 to 8 microns, and then the alignment film thickness that goes out of institute's transfer printing is 500 to 900 dusts.Hence one can see that, and the pattern unit 111 of different densities and different sizes, the degree of depth is applicable to the LCD processing procedure of different sizes or different purposes.

From the above, the utility model is by being formed with ceramic layer in the metal roller surface, the roller that the corrosion resistance of wheel of the present utility model is commonly used is good, those form in the uniformity that hexagon-shaped pattern unit on the ceramic layer can improve the transfer printing thing effectively again, and by the width and the degree of depth that change pattern unit, during the transfer printing alignment film, the alignment film thickness that goes out for institute's transfer printing especially has great influence in being applied in the LCD processing procedure.

Though the utility model discloses in previous embodiment, be not limited in content mentioned in the previous embodiment, any variation and the modification done in not breaking away from spirit and scope of the present utility model all belong to protection domain of the present utility model.

Claims

1, a kind of transfer printing wheel of tool honeycomb pattern is characterized in that, comprising:

One metal roller is formed with a ceramic layer on its surface, be formed with a plurality of hexagonal pattern units that are again on the surface of this ceramic layer, and this pattern unit is close to arrangement, and each side of each pattern unit all is connected with the adjacent side of another pattern unit;

One wheel shaft passes the axle center of this roller, and certainly on this roller the both ends of corresponding shaft core position pass.

2, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 is characterized in that: be 60 degree angles between the wantonly two oblique adjacent patterns unit, each pattern unit is an equilateral hexagon again, and each pattern unit is to be made of a depression.

3, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 or 2 is characterized in that: the width of each pattern unit is 76 to 80 microns, and the degree of depth is 18 to 30 microns, and the spacing between the two adjacent pattern units is 5 to 9 microns.

4, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 or 2 is characterized in that: the width of each pattern unit is 64 to 68 microns, and the degree of depth is 18 to 28 microns, and the spacing between the two adjacent pattern units is 5 to 9 microns.

5, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 or 2 is characterized in that: the width of each pattern unit is 60 to 64 microns, and the degree of depth is 17 to 28 microns, and the spacing between the two adjacent pattern units is 5 to 9 microns.

6, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 or 2 is characterized in that: the width of each pattern unit is 55 to 59 microns, and the degree of depth is 16 to 25 microns, and the spacing between the two adjacent pattern units is 5 to 9 microns.

7, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 or 2 is characterized in that: the width of each pattern unit is 43 to 47 microns, and the degree of depth is 11 to 16 microns, and the spacing between the two adjacent pattern units is 4 to 8 microns.

8, the transfer printing wheel of tool honeycomb pattern as claimed in claim 1 or 2 is characterized in that: further have an accessory attachment layer between ceramic layer and the metal roller surface.