JP2008044662A - Tube container and printing process for this tube container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tube container superior in decorativeness on which two or more polygon patterns are expressed. <P>SOLUTION: In the tube container having two or more polygon unit faces divided with a boundary line on the surface, the unit faces are composed of a plane surface or a curvature surface respectively and the unit faces slant slightly to the axial direction in a polygonal line shape and some dimensional difference is provided between dent parts and protruded parts formed among the unit faces. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tube container and a printing method thereof, and more particularly to a tube container having a concave convex portion on the surface and excellent in decorating properties expressing a plurality of polygonal patterns, and a printing method of the tube container.

  Conventionally, when a printing surface has an uneven portion and printing is performed on such an uneven portion, there has been a printing method such as pad (tampo) printing. In the case of pad printing, a solvent becomes a medium for a subject. The ink adheres as the solvent evaporates. Therefore, a volatile solvent must be used, and it takes time until the solvent volatilizes, and there is a disadvantage that the drying time after transfer to the subject is long. In addition, it is difficult to adjust the viscosity of ink and solvent, the amount of addition, the speed of the printing press, the depth of the concave portion of the subject, etc., so printing such as uneven ink, bleeding of prints, small bubbles, etc. There were many troubles and stable printing was impossible. In this way, pat (tampo) printing has an insufficient print finish, and it is impossible to print a large amount of objects in a short period of time on a subject having concave and convex portions, resulting in poor productivity and production. There was a drawback of high cost.

FIGS. 9 and 10 show conventional offset printing. In the offset printing, the plate does not directly contact the subject, so that the plate cylinder lasts long and clear printing is possible. Since it is suitable and the production cost is low, there is an advantage that it is suitable for surface printing of a tube container. That is, when printing is performed on the surface (flat surface) of the tube container 104, the ink image is sequentially transferred to the blanket 101 from the plates of the plate cylinders 102 and 103 arranged around the blanket 101 as the blanket cylinder 100 rotates. Then, the ink image is synthesized and transferred onto the surface of the blanket 101 that comes into contact with the plates of the plate cylinders 102 and 103. Next, an ink image is transferred to the surface of the tube container 104 by bringing the blanket 101 into contact with the tube container 104 as a subject. The tube container 104 as a subject is inserted into and supported by a mandrel 106 provided at equal intervals on the outer periphery of the turntable 105, and the tube container 104 is moved by the rotation of the turntable 105, and the tube container 104 and the blanket are moved. An ink image is transferred by contact of 100 (Patent Document 1).
Japanese Patent Publication No. 60-26038

However, the conventional offset printing shown in FIG. 9 and FIG. 10 prints on a flat surface where no irregularities are formed on the surface of the tube container 104, and a shape pattern in which concave convex portions are given on the surface. Printing was not performed on a tube container having Therefore, it is difficult to transfer the ink image to the surface of the tube container having the concave and convex portions, and in the conventional offset printing, it is possible to obtain a stable and beautiful printed image capable of recognizing a printed pattern similar to that of flat printing. Was difficult.
The present invention has been made paying attention to such a problem, and provides a tube container having a concave convex portion on the surface and excellent in decorating properties expressing a plurality of polygonal patterns. The condition that the ink image from the plate cylinder is completely transferred to the concave surface of the concave part of the tube container with excellent decorativeness is found, and the surface printing of the tube container with the concave part is stable and beautiful. It aims at providing the printing method of a tube container excellent in the design effect.

  In order to solve this problem, the solving means of the invention according to claim 1 is the tube container having a plurality of polygonal unit surfaces partitioned by the boundary line on the surface of the tube container, wherein each of the unit surfaces is flat or curved. A tube container characterized in that the unit surface is slightly inclined in a polygonal line with respect to the axial direction, and a slight dimensional difference is provided between the concave portion and the convex portion formed between the unit surfaces. is there.

  The solution of the invention according to claim 2 is a tube container in which the shape of the unit surface is one selected from a triangle, a quadrangle, a pentagon, a hexagon, and an octagon.

  According to a third aspect of the present invention, there is provided a tube container characterized in that a plurality of polygonal unit surfaces are formed on the entire surface or a part of the tube container.

  According to a fourth aspect of the present invention, in the printing of the tube container according to any one of the first to third aspects, the concave and convex portions on the surface of the tube container are pressurized so that a printed pattern equivalent to the flat surface printing can be printed. The tube container printing method is characterized in that printing is performed with the printing surface approaching a flat surface.

  According to a fifth aspect of the present invention, in the printing according to the first to third aspects, the pressing force of the blanket of the printing press and the mandrel that supports the tube container can be printed so that a printed pattern equivalent to the flat surface printing can be printed. An offset printing method is characterized in that printing is performed by pressing a concave convex portion on the surface of a tube container with an insertion pressure to bring the printing surface close to a flat surface. In offset printing, the blanket has a large pressing force against the printing surface of the tube container, and the synergistic action of the insertion pressure of the mandrel into the tube container presses the concave and convex portions, which are the printing surface of the tube container, It can be close to the shape. As a result, the ink image from the plate cylinder can be completely transferred to the concave convex surface of the tube container.

  According to the sixth aspect of the invention, A ≧ C> B is established between the inner diameter A and the innermost diameter B of the tube container and the outer diameter C of the mandrel inserted into the tube container. An offset printing method characterized by the above.

In the present invention, there is a concave convex portion on the surface, there is an effect that can provide a tube container excellent in decorating properties expressing a plurality of polygonal patterns, and according to the tube container printing method according to the present invention, Since the ink image from the plate cylinder is completely transferred to the concave-convex portion on the surface, there is an effect that it is possible to provide a printing method with a beautiful printing finish and an excellent design effect.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a drawing showing Example 1 of the present invention. In FIG. 1, FIG. 1 (a) is an example having a plurality of triangular unit surfaces 2 on the entire surface of the tube container 1.

  FIG. 1B shows an embodiment 2 having a plurality of triangular unit surfaces 2 on a part of the surface of the tube container 1. In Examples 1 and 2, as shown in FIG. 1C, the unit surface 2 is partitioned so as to be surrounded by the boundary line 3, and the longitudinal section has a slight inclination angle θ in the form of a polygonal line, A slight dimensional difference t is provided between the concave portion 4 and the convex portion 5 formed between the unit surfaces 2.

  The inventor prints such as offset printing when the inclination angle θ of the plurality of unit surfaces 2 formed on the surface of the tube container 1 and the dimensional difference t between the concave portions 4 and the convex portions 5 are not large. Found that it is possible to print a printed pattern similar to that of flat printing. That is, as shown in FIGS. 3 (a) and 3 (b), if there is a slight difference in the inclination angle θ of the unit surface 2 and the dimensional difference t between the concave portion 4 and the convex portion 5 on the surface, the offset printing press By the pressing force of both the blanket 6 and the mandrel 7 that supports the tube container 1, the inclined unit surface 2 of the tube container 1 is stretched to a state close to a flat surface at the time of printing. It has been found that printing patterns can be printed. Specifically, the inclination angle θ of the unit surface 2 is 0 <θ ≦ 8 °, and preferably 0 <θ ≦ 5 °. The dimensional difference t between the concave portion 4 and the convex portion 5 on the surface of the tube container 1 is 0 <θ ≦ 0.5 mm, and preferably 0.1 mm ≦ θ ≦ 0.3 mm. When θ is larger than 8 ° and the dimensional difference t is larger than 0.5 mm, the depth of the concave portion 4 and the convex portion 5 is too large, so that the ink image does not fall on the concave portion 4 and printing unevenness occurs. There is.

  In addition, as shown in FIG. 4, the inventor determines the difference between each dimension difference in the relationship between the inner diameter dimension A and the innermost diameter dimension B of the tube container 1 and the outer diameter dimension C of the mandrel 7 inserted into the tube container 1. Depending on the size, it was discovered that beautiful printing is possible and printing unevenness may occur. The printing unevenness was found to occur because the inclined unit surface 2 of the tube container 1 was not stretched to a state close to a flat surface by the mandrel 7 during printing. In offset printing, as a condition for enabling printing of a printing pattern similar to that of flat printing, the inclined unit surface 2 of the tube container 1 is flat when A ≧ C> B is satisfied. It has been found that printing is possible to the extent that it can be recognized to the same extent as flat printing without causing uneven printing and being stretched to a state close to. When A = C, the mandrel 7 is press-fitted into the tube container 1.

  When C> A, the mandrel 7 cannot insert the tube container 1. In the case of B> C, since the outer diameter C of the mandrel 7 is too small with respect to the innermost diameter B of the tube container 1, the inclined unit surface 2 of the tube container 1 is close to a flat surface during printing. It is not stretched to Therefore, uneven printing occurs. Needless to say, the present invention can be applied not only to offset printing but also to other screen printing, gravure printing, flexographic printing, and the like.

In offset printing, conditions that allow good printing without printing unevenness are shown below from specific test results.
(1) Test conditions a. The outer diameter of the tube container φ = 40 mm.
B. The length of one side of the unit surface 2 is approximately 5.7 mm, and 22 triangles with apexes facing downward are formed in the circumferential direction.
C. As shown in FIG. 4, the inner diameter A of the tube container A = 39.0 mm, the innermost diameter B = 38.6 mm, the outer diameter C of the mandrel C = 39.0 mm (the mandrel 7 is pressed into the tube container 1)
D. The inclination angle θ of the unit surface 2 is 0 <θ ≦ 5 ° on average, and the dimensional difference t between the concave portion 4 and the convex portion 5 on the surface is 0.1 mm ≦ t ≦ 0.3 mm on average.
(2) Test results When offset printing was performed under the test conditions described above, a print pattern that was sufficiently recognizable as flat printing could be obtained on the inclined unit surface 2 of the tube container 1 during printing.

  FIG. 5A is a diagram showing a third embodiment of the present invention, in which a plurality of diamond-shaped unit surfaces 12 are formed on the entire surface of the tube container 11. It is also possible to form it only on a part of the surface of the tube container 11. The rhomboid unit surface 12 forms a flat surface or a curved surface. In Example 3, as shown in FIG. 5 (b), the unit surface 12 is partitioned so as to be surrounded by a boundary line 13, and the longitudinal section has a slight inclination angle θ in a polygonal line, A slight dimensional difference t is provided between the concave portion 14 and the convex portion 15 formed between the unit surfaces 12.

  FIG. 6A is a diagram showing a fourth embodiment of the present invention, in which a plurality of rectangular unit surfaces 22 are formed on the entire surface of the tube container 21. It is also possible to form only a part. Each rectangular unit surface 22 forms a flat surface or a curved surface. In the fourth embodiment, the unit surface 22 is partitioned so as to be surrounded by the boundary line 23. Similarly, the longitudinal section has a slight inclination angle θ in the form of a polygonal line, and a slight dimensional difference t is provided between the concave and convex portions formed between the unit surfaces 22 (not shown).

  FIG. 6B is a diagram showing a fifth embodiment of the present invention, in which a plurality of hexagonal unit surfaces 32 are formed on the entire surface of the tube container 31. It is also possible to form only a part. Each hexagonal unit surface 32 forms a flat surface or a curved surface. In the fifth embodiment, the unit surface 32 is partitioned so as to be surrounded by the boundary line 33. Similarly, the longitudinal section has a slight inclination angle θ in the form of a polygonal line, and a slight dimensional difference t is provided between the concave and convex portions formed between the unit surfaces 22 (not shown).

  FIG. 7A is a view showing Embodiment 6 of the present invention, in which a plurality of diamond-shaped unit surfaces 42 are formed on a part of the surface of the tube container 41. Each rhombus unit surface 42 forms a flat surface or a curved surface. In the sixth embodiment, the unit surface 42 is partitioned so as to be surrounded by the boundary line 43. Similarly, the longitudinal section has a slight inclination angle θ in the form of a polygonal line, and a slight dimensional difference t is provided between the concave and convex portions formed between the unit surfaces 42. The feature of the sixth embodiment is an embodiment in which the concave portion 44 and the convex portion 45 are configured by a surface having a certain area, and the boundary line 43 does not intersect as shown in FIG. 7B.

  FIG. 8A is a view showing Embodiment 7 of the present invention, which is an embodiment having a plurality of triangular unit surfaces 52 (continuous laterally) on a part of the surface of the tube container 51.

  FIG. 8B is a view showing Embodiment 8 of the present invention, which is an embodiment having a plurality of triangular unit surfaces 62 (continuous vertically) on a part of the surface of the tube container 61.

  The tube container according to the present invention has a plurality of polygonal unit surfaces partitioned by boundary lines, and has moderate unevenness, with the body portion being not flat. And because it is possible to make more beautiful printing on the uneven surface, the synergistic effect of appearance shape and printing pattern can provide beautiful and innovatively designed tube containers, widely used in cosmetics, foods, pharmaceuticals As a tube container that can be filled with, etc., it can be widely used.

The front view (a) (b) and longitudinal cross-sectional view (c) which show the tube container of Example 1 and 2 which concerns on this invention. The partially notched top view which shows the state which is printing the tube container of Example 1 and 2 which concerns on this invention. The expanded sectional view which shows the state which is printing the tube container of Example 1 which concerns on this invention. The partially notched top view which shows the state which inserts the mandrel in the tube container of Example 1 which concerns on this invention. The front view (a) and longitudinal cross-sectional view (b) which show the tube container of Example 3 which concerns on this invention. Sectional drawing. The front view (a) (b) which shows the tube container of Example 4 and 5 which concerns on this invention. The front view (a) and longitudinal cross-sectional view (b) which show the tube container of Example 6 which concerns on this invention. The front view (a) (b) which shows the tube container of Example 7 and 8 which concerns on this invention. The front view which shows the conventional printing machine of a tube container. The plane sectional view showing the printer of the conventional tube container.

Explanation of symbols

1 11 21 31 41 51 61 Tube container 3 13 23 33 43 Boundary line 2 12 22 32 42 Polygonal unit surface 4 14 44 Recess 5 15 45 Protrusion 6 Blanket 7 Mandrel θ Inclination t Dimensional difference
A Inner diameter of tube container B Inner diameter of tube container C Outer diameter of mandrel

Claims (6)

In the tube container having a plurality of polygonal unit surfaces partitioned by the boundary line on the surface of the tube container,
The unit surfaces are each composed of a flat surface or a curved surface, and the unit surface is slightly inclined in a polygonal line shape with respect to the axial direction, and a slight dimensional difference is formed between the concave and convex portions formed between the unit surfaces. Tube container characterized by being provided   The tube container according to claim 1, wherein the shape of the unit surface is one selected from a triangle, a quadrangle, a pentagon, a hexagon, and an octagon.   The tube container according to claim 1, wherein the plurality of polygonal unit surfaces are formed on the entire surface or a part of the tube container.   In the printing of the tube container according to claim 1, the printing surface is brought close to a flat surface by pressurizing the concave convex portion on the surface of the tube container so that a printed pattern equivalent to the flat surface printing can be printed. A method for printing a tube container, comprising: applying the tube container.   In the printing of the tube container according to claims 1 to 3, the surface of the tube container can be printed with a pressing force of a blanket of a printing press and an insertion pressure of a mandrel supporting the tube container so that a printed pattern equivalent to flat printing can be printed. An offset printing method, wherein printing is performed by pressing a concave convex portion to bring a printing surface close to a flat surface. 6. The offset according to claim 5, wherein A ≧ C> B is established between an inner diameter dimension A and an innermost diameter dimension B of the tube container and an outer diameter dimension C of a mandrel inserted into the tube container. Printing method.

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