JPH04179525A - Labelled resin molded form - Google Patents

Abstract

PURPOSE:To prevent the peeling of the end sections of a label, and to improve the appearance and quality of the label section of a resin molded form by bonding both end sections of a belt-shaped label sheet with a binder layer, which can be bonded, to both the surface layer of a base sheet and a resin and forming the ring-shaped label. CONSTITUTION:Both end sections of a belt-shaped label sheet with a binder layer 2b, which can be bonded, are bonded with both the surface layer of a base sheet 2a and a resin to form a ring-shaped label 2, the ring-shaped label is positioned along the cylindrical side wall section of a recessed section for shaping a cavity of a mold-opened mold, and the mold is mold-clamped and the cavity is filled with the resin, thus integrally cementing the ring-shaped label to the peripheral surface section of a cylindrical molded form. The ring- shaped label is fast stuck to the cylindrical wall surface of the cavity by the resin filled into the cavity on insert molding and molded integrally to the peripheral surface of a resin molded form, and no stepped section is generated in the outer peripheral section of the label and the peripheral surface of the resin molded form.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a resin molded article with a label.

(Prior Art) Conventionally, it is known that a cylindrical resin molded product has a ring-shaped label attached to its outer peripheral surface. These ring-shaped labels are produced by wrapping a belt-shaped label sheet with a binder applied on the back side around the outer circumferential surface of a cylindrical resin molded product, and gluing one end of the label sheet to the surface of the other end. It is fixed by

However, in the case of such a resin molded product with a label, there is a step where the outer end of the ring-shaped label that is glued protrudes from the inner end by an amount equivalent to the thickness of the label. There were problems in that the cross section of the base sheet of the label was exposed, making it difficult to improve the appearance quality, and that the outer edge of the label was easily turned over and peeled off.

(Purpose of the Invention) The present invention has been made in view of the above-mentioned problems.The end face of the ring-shaped end of the label is not exposed, and the appearance quality is improved. The purpose of the present invention is to provide a resin molded product with a label whose edges are difficult to peel off.

(Means for Solving the Problems) In order to achieve the above object, the labeled resin molded product according to the present invention is a belt-shaped label sheet having a binder layer that can be adhered to both the surface layer of the base sheet and the resin. A ring-shaped label is formed by gluing both ends of the ring-shaped label, and this ring-shaped label is placed along the cylindrical side wall of the cavity forming recess of the opened mold, and after the mold is closed, resin is poured into the cavity. The ring-shaped label is integrally bonded to the peripheral surface of the cylindrical molded product by filling the product.

(Function) According to the resin molded product with a label according to the present invention, the ring-shaped label is tightly attached to the cylindrical wall surface of the cavity by the resin filled into the cavity during insert molding, and is integrated with the peripheral surface of the resin molded product. Since there is no step between the outer peripheral edge of the label and the peripheral surface of the resin molded product, the label is less likely to peel off and the appearance quality of the resin molded product is improved.

(Example) Hereinafter, a resin molded article with a label according to an example of the present invention will be described based on the drawings.

FIG. 1 shows a lid 1 as a resin molded product with a label according to this embodiment, and this lid 1 is screwed onto the mouth of a bottle B shown in FIG. 2 with a screw thread S. It is. A ring-shaped label 2 is integrally adhesively fixed around the cylindrical lid 1 by insert molding. The boundary IC between the top plate 1a and the cylindrical peripheral wall 1b of the lid 1 is round, and one side edge of the ring-shaped label 2 is pasted along the round boundary 1c. ing. The ring-shaped label 2 is made by heat-pressing both ends of a belt-shaped base sheet 2a shown in FIG. It is vapor-deposited.

A binder layer 2b is formed on the back surface of the base sheet 2a. The resin forming this binder layer 2b includes:
A resin that can be bonded to both the aluminum A and the resin constituting the cylindrical peripheral wall portion 1b of the lid 1 is used.

The length of the ring-shaped label 2 is set to be shorter by a predetermined ratio to the length in the circumferential direction of the cavity-forming wall surface in accordance with the shrinkage rate of the resin filled in the cavity during cooling. The length in the circumferential direction is 1
000, it is shorter by a ratio of 20/1000.

In this embodiment, the cylindrical peripheral wall 1b of the lid 1 is provided with grooves 3a extending in the height direction of the cylindrical peripheral wall 1b. 2
The outer end 2c of the ring-shaped label 2 is located therein, and the inner end 2d of the ring-shaped label 2 is overlapped with the outer end 2C and is bonded to the outer end 2C. As a result, the position of the outer end 2c of the ring-shaped label 2 becomes very inconspicuous, and the lid 1
The appearance quality of the ring-shaped label 2 is improved, and the outer end 2c of the ring-shaped label 2 is difficult to peel off.

(Effects of the Invention) As explained above, the labeled resin molded product according to the present invention is produced by bonding both ends of a belt-shaped label sheet that has a binder layer that can be bonded to both the surface layer of the base sheet and the resin. This ring-shaped label is placed along the cylindrical side wall of the cavity forming recess of the opened mold, and the cavity is filled with resin by insert molding to form a cylindrical molded product. Since the ring-shaped label is integrally adhered to the peripheral surface of the resin molded product, the outer edge of the label to which it is adhered does not protrude from the peripheral surface of the resin molded product. The appearance quality of the label part of the product is improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an adhesive portion of a label attached around a resin molded article according to an embodiment of the present invention. FIG. 2 is a perspective view of the labeled resin molded product of this example. FIG. 3 is a sectional view of the ring-shaped label of this embodiment. FIG. 4 is a partial cross-sectional view showing the end of the label positioned in the groove of the cylindrical peripheral wall of FIG. 2. FIG. 1... Lid body (resin molded product) 2... Ring-shaped label 2a... Base sheet 2b... Binder layer 2c... Outer end of adhesive part 2d... Inner side of adhesive part End 3a...Groove A...Aluminum B...Bottle Figure 1 Figure 2\

Claims (1)

[Claims] A ring-shaped label is formed by bonding both ends of a belt-shaped label sheet that has a binder layer that can be bonded to both the surface layer of the base sheet and the resin, and this ring-shaped label is opened to form a mold cavity. The ring-shaped label is integrally adhered to the circumferential surface of the cylindrical molded product by filling the cavity with resin along the cylindrical side wall of the recess and after the mold is clamped. A resin molded product with a label.