TWI768331B - Structure of reinforced perforated part of loose-leaf information bag and method of manufacturing the same - Google Patents

Abstract

The present invention relates to a structure of a reinforced perforated part of a loose-leaf information bag and a manufacturing method thereof. The present invention mainly changes the forming method of the reinforcing sheet, so as to improve the defect of the left and right drifting of the reinforcing sheet in the traditional manufacturing process. The production process is simplified, and the reinforcing sheet can be easily welded and fixed with the leather of the data bag body, so that the reinforcing sheet can exert its proper strengthening effect, so there is no need to use the thickened reinforcing sheet, which has the effect of reducing cost.

Description

Structure of reinforced perforated part of loose-leaf information bag and method of manufacturing the same

The present invention relates to a stationery, especially a data bag and its perforated part.

According to the press, at present, cylindrical transparent polypropylene leather is used to produce loose-leaf information bags all over the world. Cylindrical transparent polypropylene leather, commonly known as PP (Polypropylene), is a ring-shaped leather made of high-temperature polypropylene material along a metal ring wall using a bag blowing machine. Due to the low price of the blow bag machine, the PP leather made by the blow bag machine has become the most popular raw material used by production factories. Therefore, since the advent of loose-leaf information bags, tubular PP polypropylene leather has been the best choice for manufacturers. characteristic, forming a first piece (33) and a second piece (34) with two sides connected to each other, and then passing a long piece between the first piece (33) and the second piece (34) form a reinforcing sheet (32), and align the reinforcing sheet (32) with one side of the first sheet portion (33) and the second sheet portion (34), and then the first sheet portion (33), The second sheet portion (34) is welded together along the left and right sides of the reinforcing sheet (32) by means of heat fusion, and forms two-phase heat fusion lines (L1) and (L2) spaced apart. The area formed between the hot melt lines (L1), (L2) constitutes a perforated portion (31), wherein the reinforcing sheet (32) is not spaced from the two-phase hot melt lines (L1), (L2) It is welded together, and the perforated part (31) is provided with a plurality of in-line perforations (35). The above are the traditional loose-leaf information bag making methods that have been used all over the world for decades. As mentioned above, in order to strengthen the strength of the perforated part of the loose-leaf information bag, manufacturers generally use a thick and different material (white opaque uniaxially oriented polypropylene film, commonly known as OPP, Oriented Polypropylene) as a reinforcing sheet It is used in an attempt to reinforce the strength of the perforated part by the different material. As far as the current production situation in the world is concerned, the white opaque OPP film with a thickness of 0.07mm has been widely used in the perforated part of the loose-leaf information bag, and has become a standard specification (some people even call the traditional loose-leaf information bag a white-edged information bag). . Even so, no matter how to strengthen the strength of the reinforcing sheet or increase the thickness of the reinforcing sheet, it cannot make up for a fatal shortcoming of the above-mentioned traditional production method. As shown in Figure 3 B, the loose-leaf information bag (3 ) The left and right sides of the reinforcing sheet (32) located in the perforated part (31) are not welded together with the two-phase spaced heat fusion lines (L1) and (L2)! what does that mean? This means that the reinforcing sheet (32) does not have any connection with the first sheet (33) and the second sheet (34) of the loose-leaf information bag (3), but is in a suspended state! Therefore, when the perforated portion (31) is pulled by an external force, the reinforcing sheet (32) cannot play any role at all, see Figure 3 B. The reason why this problem exists is entirely due to the use of an H-shaped welding tool in order to keep the reinforcing sheet (32) in a fixed position in the process of traditionally making a loose-leaf information bag. The H-shaped welding tool has a circular shape and can be rolled. As the first sheet portion (33) and the second sheet portion (34) advance and convey, the H-shaped welding tool The second sheet portion (34) is welded together, and at the same time, two spaced apart hot melt lines (L1), (L2) are pressed on the first sheet portion (33) and the second sheet portion (34), And at the same time of welding, a long reinforcing sheet (32) is placed between the first sheet portion (33) and the second sheet portion (34), so that the reinforcing sheet (32) passes through the H-shaped welding tool. The first sheet portion (33) and the second sheet portion (34) are conveyed forward synchronously in the concave gap formed by the two H feet, so that the reinforcing sheet (32) is positioned in the two-phase spaced heat fusion between lines (L1) and (L2). Therefore, the traditional loose-leaf information bag using PP leather (generally 0.035mm~0.045mm in thickness) will use thickened OPP leather of different materials (the general specification is white with a thickness of 0.07mm) in order to strengthen the strength of the perforated part (31). Opaque OPP film) is used as a reinforcing sheet, but due to the problem of the above-mentioned production method, the thickened reinforcing sheet cannot perform its proper function. Therefore, the creator of this case is convenient to file an application for Taiwan's new patent No. M384766, a structural improvement of the perforated part of the loose-leaf data bag, as shown in the fourth figure, the technical content shown in this case, the data bag (3A) By moving the reinforcing sheet (32A) to the side, at least one hot melt line (L1) can connect one side of the reinforcing sheet (32A) with the first sheet portion (33A) and the second sheet portion (34A) are welded together so that the reinforcing sheet (32A) can play its own function, so as to achieve the purpose of increasing the strength of the perforated portion (31A). However, after accumulating many years of actual production experience, the author found that the technology disclosed in Taiwan's new patent No. M384766 is still not perfect, that is, the reinforcing sheet (32A) still has to be added, which is costly and relatively difficult to manufacture. .

In view of the problems of the prior art, the inventors of the present invention believe that there should be a structure and a manufacturing method for the reinforced perforated part of the loose-leaf information bag. The author has accumulated many years of production experience and found that the strength of the perforated part of the traditional loose-leaf information bag has problems. The main reason is the structure of the raw materials used! The author believes that the cylindrical PP leather should be abandoned and replaced with a long sheet-shaped uniaxially oriented polypropylene transparent film (OPP, Oriented Polypropylene) or a biaxially oriented polypropylene transparent film (BOPP, Biaxially Oriented Polypropylene) . The author believes that only by changing the structure of raw materials, can the production method be changed, and a new manufacturing method can be designed to improve the existing shortcomings. For this reason, the author found that the traditional manufacturing method has the disadvantage that the reinforcing piece hangs in the air, mainly because the traditional manufacturer found that the reinforcing piece inserted between the first and second parts during the production process will drift indefinitely. Problem, in order to solve this problem, the H-type hot-melt tool was used, and because of this, the two sides of the reinforcement sheet could not be welded with the first and second parts, so only a different reinforcement sheet was designed to form In this way, the author believes that the problem of insufficient strength of the perforated part encountered in the traditional manufacturing of loose-leaf information bags can be solved. Therefore, the creator devised a production method, advocating abandoning the method of "using different materials between the traditional data bag body and the reinforcing sheet", abandoning the use of PP leather in a cylindrical structure, and adopting a one-way elongated sheet. Oriented polypropylene transparent film (OPP, Oriented Polypropylene) or biaxially oriented polypropylene transparent film (BOPP, Biaxially Oriented Polypropylene) are used as raw materials for loose-leaf information bags. One piece and a second piece, and then fold the first piece away from the folded edge formed by folding back to form a reinforcing piece between the first piece and the second piece, and fold the first piece The reinforcing sheet, the first sheet portion, and the second sheet portion are welded together along the left and right sides of the reinforcing sheet in a hot-melting manner to form two-phase-spaced hot-melt lines. The two-phase-spaced hot-melt lines The area formed between them defines a perforated portion, and a plurality of in-line perforations from top to bottom are arranged in the perforated portion. With the structural characteristics of the sheet-like leather that is easy to fold, the folding method is designed so that the reinforcing sheet required for the perforated part of the loose-leaf data bag can be directly formed from the raw material, forming the first and second parts of the data bag (data bag). The bag body) and the reinforcing sheet are all the same material data bag structure. The structural features of the data bag body (the first part and the second part) and the reinforcing sheet are all of the same material, which is not only significantly different from the traditional data bag structure (In the traditional manufacturing method, the data bag body and the reinforcing sheet are of different materials), and it also has the advantages of simplifying the production process and reducing the production cost. By changing the forming method of the reinforcing sheet, the reinforcing sheet will never have the problem of running around. Therefore, the reinforcing sheet and the first and second sheet parts can be easily welded and fixed together, so that the reinforcing sheet can play a role, so there is no need to use the thickened reinforcing sheet, which has the effect of reducing the cost.

The structure, features and embodiments of the present invention will be described below with the aid of the drawings, so as to make your examiners have a further understanding of the present invention. Please refer to the first figure, the present invention relates to a manufacturing method of a loose-leaf information bag reinforced perforated part, which is a transparent uniaxially oriented polypropylene film (OPP, Oriented Polypropylene) or a biaxially oriented polypropylene film (BOPP). , Biaxially Oriented Polypropylene) sheet (1) is folded into a first sheet portion (11) and a second sheet portion (12), and the first sheet portion (11) is further away from one of the folded edges (13) formed by the folding The side folding back forms a reinforcing sheet (14) between the first sheet portion (11) and the second sheet portion (12). (The reinforcing piece (14) in the first drawing is folded back first, but this case is not limited to the sequence). Next, the reinforcing sheet (14), the first sheet portion (11), and the second sheet portion (12) are welded together along the left and right sides of the reinforcing sheet (14) in a hot-melting manner to form a two-phase The spaced hot melt lines (1A), (1B), the area formed between the two-phase spaced heat melt lines (1A), (1B) defines a perforated portion (1C), and the perforated portion (1C) Set up a series of multiple perforations (15) from top to bottom. A cutting step is added to cut off the part of the first sheet portion (11), the second sheet portion (12), and the reinforcing sheet (14) exposed outside the perforated portion (1C), so that the perforated portion (1C) is cut off. ) outside into a neat appearance, as shown in the second B picture. It can be found from the second picture A that the structure of the present invention includes: a first sheet portion (11) and a second sheet portion (12), the first sheet portion (11) and the second sheet portion (12) are connected by a A transparent uniaxially oriented polypropylene film (OPP, Oriented Polypropylene) or a biaxially oriented polypropylene film (BOPP, Biaxially Oriented Polypropylene) sheet (1) is folded; a perforated part (1C), the perforated part ( 1C) is defined by the area formed by the two-phase spaced apart hot melt lines (1A), (1B), mainly by the distance between the first sheet portion (11) and the folded edge (13) formed by the folding. One side is folded back inward to form a reinforcing sheet (14) located between the first sheet portion (11) and the second sheet portion (12), and the reinforcing sheet (14), the first sheet portion (11) ), the second sheet portion (12) along the left and right sides of the reinforcing sheet (14), the three are welded together by hot-melting, and the hot-melting lines (1A) and (1B) of the two-phase interval are formed, And the perforated portion (1C) is provided with a plurality of in-line perforations (15) from top to bottom (see the first figure for cooperation). After further trimming the structure of the present invention from the first figure, another embodiment can be produced. As shown in the second B figure, the structure of this embodiment includes a first sheet portion (11) and a second sheet portion (12). , the first sheet portion (11) and the second sheet portion (12) are made of a transparent uniaxially oriented polypropylene film (OPP, Oriented Polypropylene) or a biaxially oriented polypropylene film (BOPP, Biaxially Oriented Polypropylene) sheet The material (1) is folded; a perforated part (1C), the perforated part (1C) is defined by the area formed by the two-phase spaced apart hot melt lines (1A), (1B), mainly On the side edge away from the folding edge (13) formed by the folding of the first sheet portion (11) and the second sheet portion (12), a pair of the first sheet portion (11), the second sheet portion ( 12) A reinforcing sheet (14) of the same material and located between the first sheet portion (11) and the second sheet portion (12), and the reinforcing sheet (14), the first sheet portion (11), The second sheet portion (12) is along the left and right sides of the reinforcing sheet (14), and the three are welded together in a hot-melting manner to form the two-phase-spaced hot-melt lines (1A), (1B), and the The perforation part (1C) is provided with a plurality of perforations (15) in a series from top to bottom. (Refer to the first picture for cooperation). To sum up, the present invention is indeed in line with industrial applicability, and has not been seen in publications or publicly used before the application, nor has it been known to the public, and it is non-obvious and complies with the requirements for patentability, and a patent application can be filed in accordance with the law . However, the above statement is a preferred embodiment of the present invention in the industry, and all the equivalent changes made according to the scope of the patent application of the present invention are all within the scope of the subject matter of this case.

1: Sheet

11: The first film

12: The second part

13: Folded edge

14: Enhancer

15: Perforation

1A: hot melt line

1B: hot melt line

1C: Perforated part

3, 3A: accustomed loose-leaf information bag

31, 31A: perforated part

32, 32A: Reinforcing sheet

33, 33A: The first part

34, 34A: The second part

35: Perforation

L1, L2: hot melt line

The first figure is a schematic diagram of the manufacturing method of the present invention. The second diagram A is a schematic diagram of a structural embodiment of the present invention. The second diagram B is a schematic diagram of another structural embodiment of the present invention. The third panel A is a schematic diagram of the prior art. The third panel B is a schematic diagram of the use of the prior art. The fourth figure is a schematic diagram of another prior art.

(1). Sheet (11). The first part (12). The second part (13). Folded edge (14). Reinforcing sheet (15).Perforation (1A).Hot melt wire (1B).Hot melt wire (1C).Perforated part

Claims (4)

A manufacturing method of a loose-leaf information bag, which is to fold a transparent uniaxially oriented polypropylene film (OPP, Oriented Polypropylene) or a biaxially oriented polypropylene film (BOPP, Biaxially Oriented Polypropylene) into a first part and a second part. Two pieces, the other side of the first piece away from the folding edge formed by folding is folded back inward to form a reinforcing piece between the first piece and the second piece, and the reinforcing piece, The first sheet portion and the second sheet portion are welded together along the left and right sides of the reinforcing sheet by means of heat fusion to form two-phase spaced heat fusion lines, and the two-phase spaced heat fusion lines are formed by the two-phase spaced heat fusion lines. The area defines a perforated part, and the perforated part is provided with a plurality of in-line perforations from top to bottom. According to the manufacturing method of a loose-leaf information bag in the first item of the patent scope, a cutting step is added, and the first sheet portion, the reinforcing sheet and the second sheet portion exposed on the outside of the perforated portion are cut off, so that the The outside of the perforated part has a neat appearance. The structure of a loose-leaf information bag includes a first sheet part and a second sheet part, the first sheet part and the second sheet part are made of a transparent uniaxially stretched polypropylene film (OPP, Oriented Polypropylene) or biaxially stretched Polypropylene film (BOPP, Biaxially Oriented Polypropylene) sheet is folded; a perforated part, the perforated part is defined by the area formed by the two-phase spaced apart hot melt lines, mainly by the first sheet part A side away from the folded edge formed by folding is folded back inward to form a reinforcing sheet between the first sheet portion and the second sheet portion, and the reinforcing sheet, the first sheet portion, and the second sheet portion The left and right sides of the reinforcing sheet are welded together in a hot-melting manner to form the two-phase-spaced hot-melting line, and the perforated portion is provided with a plurality of in-line perforations from top to bottom. The structure of a loose-leaf information bag includes a first sheet part and a second sheet part, the first sheet part and the second sheet part are made of a transparent uniaxially stretched polypropylene film (OPP, Oriented Polypropylene) Or biaxially oriented polypropylene film (BOPP, Biaxially Oriented Polypropylene) sheet is folded; a perforated part, the perforated part is defined by the area formed by the two-phase spaced apart hot melt lines, mainly in the distance away from each other. One side of the folded edge formed by folding the first and second sheet parts is provided with a material of the same material as the first sheet part and the second sheet part, and is located on the first sheet part and the second sheet The reinforcing sheet is between the two parts, and the reinforcing sheet, the first sheet portion, and the second sheet portion are welded together along the left and right sides of the reinforcing sheet in a hot-melting manner to form the two-phase-spaced hot-melt line, and The perforation part is provided with a plurality of perforations in a row from top to bottom.

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