JP2001293780A - Laminated material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the production costs of a laminated material by simplifying its production process and method. SOLUTION: Laminated films, each of which has a thermal adhesive layer 2 on one side of a support 1, are joined together through a folding part 3. Various patterns such as a hole penetrating the film, a half slit, and a folding stripe can be adopted as the form of the folding part 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate material used for covering business cards, postcards, printed photographs, pamphlets, menus and the like for the purpose of protecting the coated material and improving the appearance. More specifically, the present invention relates to a laminate material for sandwiching a coating between laminated films, passing the coating through a heating / pressing device such as a heat roller, and laminating the surface of the coating by heat-sensitive bonding.

[0003]

2. Description of the Related Art Conventionally, card materials such as consultation tickets used in hospitals have been made of paper. Cards made of paper have the advantage of being inexpensive, but are inferior in durability and surface. There is a high possibility that the information printed on the media becomes unreadable due to blurring or tearing. In order to avoid such drawbacks, substitution with plastic is conceivable, but plastic cards are too expensive compared to paper. Against this background, there is a laminate as a means for adding durability and aesthetics to a paper material that is easily consumed. Cards laminated with plastic film have durability and aesthetics comparable to plastic,
The price is also cheaper than plastic cards. Furthermore, in recent years when environmental issues and resource protection have been widely taken up, making paper materials durable also leads to resource protection.

[0004]

At present, as a method of laminating cards, for example, when laminating business cards, a business card is sandwiched between two laminated films whose periphery is slightly larger than the size of the business card, and a sandwich state is maintained. Heat and press with a heat roller to bond and integrate the business card and laminate film. The two laminated films are heat-sealed in a belt shape along one edge so as not to be shifted during processing, and are designed so that if a business card is sandwiched, the two laminated films can be neatly finished without being shifted. That is, FIG.
As shown in the sectional view of FIG.
Is heat-sealed in a strip along any edge
Thus, it is adhered so as to be openable and closable in a so-called binding state of a top paste. Then, in order to laminate the business card W, the business card W is sandwiched between the laminated films F and F as shown in B, and fixed at a position around the center so as not to protrude from the laminate material. It is inserted between the heat rollers 8 and 8 and the laminated films F and F and the business card W are bonded and laminated by heating and pressing.

[0005] However, the laminated film having the above structure is
Any edge of the two laminated films must be bonded in advance by heat fusion with a width of only a few millimeters,
Such processing is very difficult and the failure rate is high, and the cost required for the processing is high, resulting in an increase in the cost of the laminate material. An object of the present invention is to solve such a problem and provide an extremely inexpensive laminate material.

[0006]

In order to achieve the above object, the laminated material of the present invention has a laminated film provided with a heat-sensitive adhesive layer on one surface of a support, which is connected via a folded portion. It is characterized by: In addition, the laminated material of the present invention is not a conventional type in which two laminated films are adhered at the edges, but a single laminated film that is folded and sandwiched in the vicinity of the center, and both have completely different technical ideas. It is.

[0007] Various methods are conceivable in order to smoothly and accurately fold the laminate film at the folding section. For example, if a perforation is formed in the folded portion so as to penetrate the laminate film, the folding line is automatically formed along the perforation automatically if the folded portion is pressed down and pressed. In this case, the length, pitch and number of the sewing machine are not limited. In an extreme case, only the cuts may be provided on both sides. The notch is used as a mark at the turn-back position, and the folding line can be easily and accurately formed by pressing down from both cut portions. Further, the perforated perforations and the like also serve as an air vent, which is extremely effective. Further, the shape of the penetrated hole may be a dot shape or another shape irrespective of the linear shape of the sewing machine or the like.

A half slit may be used instead of the through hole. In this case, a folding line can be easily formed by forming a half slit on either the inside or the outside of the folded portion. However, if it is formed on the outer surface side of the folded portion, the supporting member and the heat-sensitive adhesive layer can be formed together with the forming of the folding line. The cross section is exposed due to cracking, and a flat edge can be obtained even at the crease portion. The shape, depth, number, etc. of the half slits are not limited. In an extreme case, only half slits may be provided on both sides. The half-slit is a mark at the turn-back position, and a folding line can be easily and accurately formed by pressing the half-slit portion on both sides.

Further, it is also possible to employ a folding line in place of the through hole and the half slit. There is no limitation on the shape, depth, number and the like of the creases, and in extreme cases, only some creases may be provided on both sides. The folding line serves as a mark for folding, and the folded portion can be easily and accurately formed by pressing down from both folding line portions.

The material and thickness of the support are not limited. For example, polyethylene terephthalate, polypropylene, polystyrene, acetate, polyethylene, nylon, polycarbonate and the like having a wide range of about 10 to 100 μm can be used. There is no limitation on the material and thickness of the heat-sensitive adhesive, and EVA, EEA, EAA, polyethylene,
Polyester, ionomer, polyamide, various resins such as acrylic and acrylic and mixtures thereof, and those added with various additives such as tackifier, wax, release agent, antiblocking agent, slip agent, antioxidant, 1
It can be formed and used in a wide range of thickness of about 0 to 100 μm.

[0011]

Since the folded portion serves as an accurate guide for the folding line, it can be easily folded in two without being displaced by pressing with a finger or a hand. Thereafter, lamination can be performed in the same manner as a normal laminate material.

[0012]

1A, 1C, and 1D are cross-sectional views specifically showing a manufacturing method of the present invention, and B is a plan view. 2A to 2D
Represents a plan view showing a variation of the folded portion of the present invention. FIG. 3 is a cross-sectional view showing a case where a half slit is provided as a folded portion on the outer surface side of the folded portion. FIG. 4 is a sectional view showing a case where a folding line is formed as a folding portion. FIG.
A, B, and C represent cross-sectional views for explaining the drawbacks of the conventional laminate. Hereinafter, an embodiment in which the present invention is applied to a business card will be described in detail with reference to the drawings.

FIG. 1A is a sectional view of a laminate S of the present invention. This laminate S is made of polyethylene terephthalate having a thickness of 45 μm as a support 1 and an EV
A heat-sensitive adhesive layer 2 mainly composed of A is formed by a melt extrusion method with a thickness of 45 μm. Then, as shown in FIG. 1B, the left and right laminated films 4, 5 each having a size slightly larger than the business card are connected by perforations that penetrate the laminated material S provided in the folding portion 3 as shown in FIG. 1B. It can be folded in two. As shown in the figure, the four corners of the left and right laminate films 4 and 5 have rounded corners, but this is for finishing the four corners as a whole with the corners dropped when folded and overlapped. And not necessarily required. If the corners are cut in this way, cuts 6 are formed at both ends of the folded portion, and this cut 6 has the advantage of being a good guide when forming a folding line.

In order to use the laminated material of the present invention, first, as shown in FIG. 1C, the folded portion 3 provided at the center of the laminated material S is folded so as to be on the back, and a folding line is formed by a finger or the like. Finish in the state of. Subsequently, the business card W is sandwiched between the folded left and right laminated films 4 and 5, pressed at a position substantially at the center, and inserted from the folding section 3 to between the heat rollers (see FIG. 5C). While passing through the heat roller, the air inside is extruded and brought into close contact with each other, and the heat-sensitive adhesive layer 2 which has been heated to exhibit adhesiveness allows the front and back surfaces of the business card W and the left and right laminated films 4 and 5 to be joined together. Completely adhered and finished as a finished product as shown in FIG. 1D.

The folded portion 3 is not limited to the perforation of the above-described embodiment. For example, as shown in FIG. 2A, a notch of an arbitrary length is formed everywhere, or a continuous circular hole or square hole such as May have been punched out. It is also possible to form a half slit in place of the perforation penetrating or the like. For example, when a half slit is provided in a straight line on the folded outer surface side of the folded portion 3, as shown in FIG. 1 and the heat-sensitive adhesive layer 2 are cracked, and after being folded, have the same cross section as the other surroundings. The number, pitch and shape of the half slits are not limited. Further, as shown in FIG. 4, it is also possible to provide a folding line to replace the folded portion, and in this case, the number, quantity and shape are not limited.

The present invention is not limited to the above embodiment. For example, in the extreme case, the folded portion 3 of the present invention may be provided with only partial cuts on both sides, a half slit, a folding line, and the like. In that case, it may be a notch having a round shape as shown in FIG. 1B or a wedge shape as shown in FIG. 2D.
It is preferable to form it in a shape that can be balanced as a whole when folded.

[0017]

According to the laminate of the present invention, it is not necessary to overlap two laminates as in the prior art and to finish any one edge precisely in a point width of only a few millimeters. Therefore, the processing is simplified, and the occurrence of defective products is extremely reduced, so that the cost can be significantly reduced.

[0018]

[Brief description of the drawings]

1A, 1B and 1D are cross-sectional views specifically showing a manufacturing method of the present invention, and B is a plan view.

FIGS. 2A to 2D are plan views showing variations of the folded portion of the present invention.

FIG. 3 is a cross-sectional view showing a state in which a half slit is provided as a folded portion on the outer surface side of the folded back.

FIG. 4 is a sectional view showing a case where a folding line is formed as a folding portion.

FIGS. 5A, 5B, and 5C are cross-sectional views illustrating the disadvantages of the conventional laminate.

[Explanation of symbols]

 S Laminated material W Business card F Laminated film 1 Support 2 Heat-sensitive adhesive layer 3 Folded part 4, 5 Left and right laminated film 6 Cut 7 Adhesive part 8 Heat roller

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 3E086 AB01 AC06 AC12 AC13 AC22 AC31 AD28 BA04 BA15 CA34 CA35 4F211 AD06 AD08 AG03 AH53 TA04 TC05 TH18 TH19 TH20 TN09 TN49 TQ03

Claims (5)

[Claims] 1. A laminate material comprising a laminate film having a heat-sensitive adhesive layer provided on one surface of a support, which is connected via a folded portion. 2. The laminated material according to claim 1, wherein the folded portion is a cut through the laminated film. 3. The laminate material according to claim 1, wherein the folded portion has a half slit shape that does not penetrate the laminate film. 4. The laminated material according to claim 1, wherein the folded portion is a folding line. 5. The laminated material according to claim 1, wherein a fold by cutting is provided on at least one edge of the laminate film.