JP4650612B2 - Label raw material sheet processing method, label manufacturing method, and label - Google Patents

Description

  The present invention relates to a label raw material sheet processing method for manufacturing a label to be attached to a container such as a PET bottle, so-called shrink label, stretch label, or wound label, and the processed label raw material. The present invention relates to a label manufacturing method using a sheet, and further to a label obtained by the manufacturing method.

  PET bottles (polyethylene terephthalate (PET) bottles) used as containers for liquids such as drinking water are not directly printed with product names, designs, etc. on their surfaces, but with these product names, designs, etc. A so-called shrink label is applied. In order to recycle an empty plastic bottle, the shrink label on which a pattern or the like has been printed with ink must be peeled off from the plastic bottle. In order to make it easier to remove the shrink label from the PET bottle, conventionally, the shrink label has one or more perforations formed in the vertical direction, and a knob is formed at the upper end (or lower end) of the perforation. (For example, see Patent Document 1, Patent Document 2, and Patent Document 3).

According to the shrink label having such a structure, the shrink label can be easily cut along the perforation by pinching the knob portion and pulling in the lower direction (or upper direction) of the plastic bottle. The shrink label can be easily peeled off.
Japanese Patent Laid-Open No. 10-316143 Japanese Utility Model Publication No. 5-16634 Japanese Utility Model Publication No. 6-48539

  By the way, in the conventional shrink label structure described above, the knob portion protrudes from the upper edge line (or the lower edge line) of the shrink label, and the tip of the knob portion and the edge line of the shrink label are displaced. . For this reason, the cut line of the shrink label that is usually cut out from the shrink sheet (label raw material sheet) that is formed in advance into a cylindrical shape becomes a stepped line so that no wasteful cut pieces are generated. It is difficult to cut out a shrink label from a shrink sheet (label raw material sheet).

  The present invention has been made to solve the above-mentioned conventional problems, and is for producing a label having a knob portion for tearing along a perforation without generating a wasteful cut piece. The present invention provides a label raw material sheet processing method, a label manufacturing method using the processed label raw material sheet, and a label obtained by the manufacturing method.

In the label raw material sheet processing method according to the present invention, a pair of slit rows composed of slits arranged at predetermined intervals in the moving direction of the label raw material sheet is formed on the label raw material sheet moving in the longitudinal direction. while, a perforation of the multiple predetermined proximity of said pair of slit rows, in the area inside and outside sandwiched the slit rows, a first step of forming in parallel with the slit matrix, the pair of slit matrix and before a configuration and a second step of forming the label original sheet into a cylindrical shape by joining both edges in the width direction of the label-material sheet perforation number of Kifuku is formed.

With such a configuration, a pair of slits columns of slits that are arranged at predetermined intervals in the longitudinal direction is formed, perforation of multiple said that Do parallel to the pair of slit rows of the pair slit matrix The cylindrical label raw material sheet | seat formed in the predetermined vicinity can be made. And if the said label raw material sheet | seat is cut | disconnected so that each slit of the said pair of slit row | line | column may be cut | disconnected, the knob | pick part formed by the notch corresponding to a pair of slit in the edge corresponding to the cutting line, and the said notch | incision it is possible to produce a tubular label having a perforation of several that Do parallel.

Before the relative positional relationship with respect to the pair of slit rows of Kifuku number of perforations (a predetermined proximity) it may be appropriately determined on the basis from the slit end to the fracture switching characteristics of the perforation. The perforations before Kifuku number, the the pair of slit rows are formed in a region sandwiched, also formed within a larger width than the separation width of the pair of slit rows.

  Moreover, the processing direction of the label raw material sheet | seat which concerns on this invention can be set as the structure which said 1st process does not form a perforation in the area | region pinched by two opposing slits in a pair of said slit row | line | column.

  With such a configuration, no perforation is formed in the region sandwiched between the two opposing slits, so that when the label raw material sheet is cut across the two slits to form a knob, No perforation is formed in the knob.

  Further, in the method for processing a label raw material sheet according to the present invention, the first step is a disc-shaped slit blade body in which blade pieces arranged at a pitch corresponding to the arrangement interval of the slits are formed around The slit row is formed by rotating with the movement of the label raw sheet around an axis parallel to the width direction of the label raw sheet while abutting on the label raw sheet, and the holes in the perforations The disc-shaped perforation blade body on which the blade pieces arranged at a pitch corresponding to the arrangement interval are abutted against the label raw material sheet while being parallel to the width direction of the label raw material sheet The perforation may be formed by rotating with the movement of the label raw material sheet about the axis to be formed.

  With such a configuration, the slit blade and the perforation blade rotate with the movement of the label raw material sheet, and the slit row and the perforation are formed in the longitudinal direction of the label raw material sheet.

  Furthermore, the label raw material sheet processing method according to the present invention may be configured such that the slit blade and the perforated blade are rotated coaxially.

  With such a configuration, it is possible to save the installation space in the longitudinal direction of the label raw material sheet of the slit blade and the perforation blade.

  Moreover, the processing method of the label raw material sheet | seat which concerns on this invention can be set as the structure by which the blade piece is not formed in the site | part corresponding to each blade piece of the said blade for slits in the said blade for perforation.

  With such a configuration, no perforation is formed in a region sandwiched between two opposing slits in a pair of slit rows formed on the label raw material sheet by each blade piece of the slit blade.

The method for manufacturing a label according to the present invention includes a cylindrical label raw material sheet cut by cutting a cylindrical label raw material sheet processed according to the label raw material sheet processing method described above so as to cross each slit of the pair of slit rows. It becomes the structure which has the process to cut out.

  With such a configuration, a knob formed by a pair of cuts corresponding to the pair of slits on the edge corresponding to the cutting line when cutting from the label raw material sheet, and a sewing machine extending from the vicinity of the knob to the other edge Labels with eyes can be produced. Then, in the container to which the label is attached, the label can be torn along the perforation by pulling the knob along the perforation.

Labels according to the present invention is a cylindrical, and a knob portion formed by a pair of notches on at least one edge, a perforation of the number of double from a predetermined proximity of該摘viewed portion Ru extends toward the other edge And the plurality of perforations are formed in parallel with straight lines passing through the pair of cuts, inside and outside the width of the knob .

  With such a configuration, the label can be torn along the perforation by pulling the knob along the perforation while being attached to the container.

  Furthermore, the label according to the present invention may be configured such that the one or more perforations are not formed in the knob.

  With such a configuration, the label is attached to the container, and the knob is not cut into strips by perforations, so the appearance as a label is not impaired, and the label is picked up from the entire knob. Can be cut along the perforation accurately.

According to the present invention, a pair of slits columns of slits that are arranged at predetermined intervals in the longitudinal direction is formed, perforation of multiple is formed with the pair of slit rows and various positional relationships cylinder The label raw material sheet can be made. And the cylinder in which the knob | pick part for tearing along a perforation was formed, without producing | generating a useless cutting piece by cut | disconnecting across each slit in the said pair of slit row | line | column of the said label raw material sheet | seat The label can be cut out.

  Embodiments of the present invention will be described with reference to the drawings.

  The basic structure of a processing machine that processes a label raw material sheet according to the processing method according to the embodiment of the present invention is as shown in FIG.

  In FIG. 1, this processing machine includes a feeder 11 on which a label raw sheet S (shrink label sheet: for example, biaxially stretched polystyrene film 60 μm) is set, rollers 12, 13, 14, 15 and a label raw sheet. A perforation processing mechanism 50 for forming perforations in S, a sheet folding mechanism 40 for forming the label raw material sheet S into a cylindrical shape, rollers 22, 23, and a winder 25 are provided. The perforation processing mechanism 50 is installed to face the roller 13 so as to sandwich the label raw material sheet S. The label raw material sheet S fed from the feeder 11 is supplied to the perforation processing mechanism 50 via the roller 12. The label raw material sheet S that has passed through the perforation processing mechanism 50 is further formed into a cylindrical shape via the rollers 14 and 15 and the folding mechanism 40, and the cylindrical label raw material sheet S passes through the rollers 22 and 23. It reaches the winder 25. By rotating the feeder 11 and the winder 25 synchronously, the label raw material sheet S that has been processed (perforated and folded) while being sequentially fed from the feeder 11. Are sequentially wound around the winder 25.

  Detailed configurations of the perforation processing mechanism 50 and the sheet folding mechanism 40 will be described with reference to FIG. 2 together with FIG. FIG. 2 is a detailed plan view of the perforation processing mechanism 50 and the sheet folding mechanism.

  The perforation processing mechanism 50 includes two slit blades 55 and 56 mounted on a shaft 51 parallel to the width direction of the label raw material sheet S and perpendicular to the moving direction of the label raw material sheet S, and three sewing machines. Eye blades 52, 53, and 54 are provided. The two slit blades 55 and 56 are spaced apart by a predetermined length (corresponding to the width of the knob described later), and the three perforated blade members 52, 53, and 54 are equally spaced. It is arranged between the bodies 55 and 56. As shown in FIG. 3, each of the perforated blade bodies 52, 53, and 54 has a disc shape, and perforated blade pieces 58 are formed around the perforated blade pieces 58 at a predetermined pitch. Further, as shown in FIG. 4, each of the slit blades 55 and 56 has a disk shape, and the slit blade pieces 59a, 59b and 59c around the slits correspond to the length of the label to be cut out as will be described later. The pitch is formed.

  The shaft 51 is rotationally driven in synchronization with the movement of the label raw material sheet S in a state where the slit blades 55 and 56 and the perforated blades 52, 53 and 54 are in contact with the label raw material sheet S. With the rotation of the slit blades 55 and 56 accompanying the rotation of the shaft 51, the pitch of the blade pieces 59a, 59b and 59c (see FIG. 4) of the slit blades 55 and 56 in the moving direction of the label raw material sheet S is increased. A pair of slit rows {105} and {106} consisting of slits 105 and 106 arranged at corresponding intervals (in the case of representing a slit row, {} is attached to the reference number of the slit constituting the slit row). It is formed. Further, by the rotation of the perforation blades 52, 53, and 54 accompanying the rotation of the shaft 51, the three perforations 102, 103, and 104 that are parallel to the respective slit rows {105} and {106} are formed into the slit rows. It is formed so as to be arranged between {105} and {106}.

The relative positional relationship between the pair of slit rows {105}, {106} and the three perforations 102, 103, 104 is as shown in FIG. That is, the distance between the pair of slit rows {105}, {106} is a, the length of the slits 105, 106 in each slit row {105}, {106} is d, and the distance between the perforations 102, 103, 104. B, the distance between one slit row {105} and the perforation 102 and the distance between the other slit row {106} and the perforation 104 are c. For example,
a = 4.5 millimeters b = 1.5 millimeters c = 0.75 millimeters d = 6 millimeters.

1 and 2, the sheet folding mechanism 40 includes regulation rollers 16a and 16b, rotation guide rollers 17a and 17b, 18a, 18b, 19a and 19b, an application nozzle 20, and nip rollers 21a and 21b. The label raw material sheet S on which the pair of slit rows {105}, {106} and the three perforations 102, 103, 104 are formed by the perforation processing mechanism 50 passes through the roller 15, and further, the regulating rollers 16a, 16b. In the state in which the position in the width direction is regulated by the rotation guide roller 17a, 18a, 19a and the rotation guide roller 17b, 18b, 19b, the sheet is conveyed while being biased inward. As a result, the label raw material sheet S is folded back into a cylindrical shape.

The label raw material sheet S that is sequentially moved while being folded back into a cylindrical shape is supplied with an adhesive from the coating nozzle 20 to the overlapping portion at both ends in the width direction of the label raw material sheet S by the folding back. Then, the label raw material sheet S to which the adhesive is supplied to the overlapping portion is conveyed while being pressed by the nip rollers 21a and 21b, and the label raw material sheet S formed into a cylindrical shape by bonding the overlapping portion is the roller 22. , 23 and supplied to the winder 25 .

  In the processing machine as described above, in the process in which the label raw material sheet S fed from the feeder 11 moves, the perforation processing mechanism 50 arranges slits arranged at intervals corresponding to the label length in the moving direction. While a pair of slit rows {105} and {106} consisting of 105 and 106 is formed, three perforations 102, 103 and 104 are formed between the slit rows {105} and {106} in parallel therewith. Is done. And the label raw material sheet | seat S in which a pair of slit row | line | column {105}, {106} and three perforations 102, 103, and 104 were formed in this way was adhere | attached in the width direction both ends, and it processed into a cylinder shape Then, the label raw material sheet S processed into the cylindrical shape is wound around the winder 25.

  The cylindrical label raw material sheet S in which such slit rows {105}, {106} and perforations 102, 103, 104 are formed is supplied to, for example, a labeler that manufactures a bottle with a label. In the labeler, the cylindrical label raw material sheet S is fed into a cutter, and a label to be attached to the bottle is cut out from the label raw material sheet S by the cutter.

  The cutter cuts out a label by cutting in a direction perpendicular to the length direction of the cylindrical label raw material sheet S and across the slits 105 and 106 in the pair of slit rows {105} and {106}. . The cutting line Lc is set so as to pass through the midpoints of the slits 105 and 106 in the length direction, for example, as shown in FIG. The cutting line Lc corresponds to the edge of the label to be cut out, and by cutting across the slits 105 and 106, a pair of cut portions corresponding to the slits 105 and 106 is formed at the edge of the label. The length of each cut portion is half the length (d) of each slit 105, 106 (= d / 2: 3 millimeters, for example).

  The cylindrical label cut out by the cutter is placed on a predetermined part of a bottle (for example, a PET bottle), and is completely attached to the predetermined part of the bottle by heat shrinkage (shrink) by heat treatment. The bottle 200 with this label applied is shown in FIG. In FIG. 6, cuts 105 a and 106 a are formed on one edge 121 of the label 100 by cutting (cutting line Lc) across the slits 105 and 106 (see FIG. 5) of the label raw material sheet S described above. A portion sandwiched between 105 a and 106 a is a knob 111. Similarly, cuts 105b and 106b are formed on the other edge 122 of the label 100, and a portion sandwiched between the cuts 105b and 106b is a knob 112. There is no step between the upper ends of the knobs 111 and 112 and the corresponding edges 121 and 122 of the label 100.

  Further, the label 100 has a straight line connecting the notches 105a and 105b and a straight line connecting the notches 106a and 106b in parallel with each other from the lower end of one of the knobs 111 (112) to the other knob. Three perforations 102, 103, and 104 extending toward the portion 112 (111) are formed. The relative positional relationship between the knobs 111 and 112 and the perforations 102, 103, and 104 is the relative positional relationship between the slits 105 and 106 of the label raw material sheet S and the perforations 102, 103, and 104 described above. (See FIG. 5).

  In the bottle 200 to which such a label 100 is attached, by pulling one of the knobs 111 and 112 along the perforations 102, 103, and 104, the label 100 is aligned along the perforations 102, 103, and 104. Can be easily torn. Thereby, the label 100 and the bottle 200 can be separated and discarded.

  Next, experimental examples will be described.

As the label raw material sheet S, a biaxially stretched polystyrene film having a predetermined printing applied 60 μm
A labeled PET bottle was produced according to the above-described procedure.

Experimental example 1
Each perforation was formed using a perforated blade 52 (53, 54) (see FIG. 3) having a cut length of 0.1 mm and a pitch of the blades 58 of 1.8 mm.

Experimental example 2
Each perforation was formed using a perforated blade body 52 (53, 54) (see FIG. 3) in which the cut length by the blade piece 58 is 0.7 millimeters and the pitch of the blade pieces 58 is 2.8 millimeters.

The results of Experimental Examples 1 and 2 are shown in Table 1.

  In Experimental Example 1, the size of each hole of the perforation is about 0.1 to 0.2 mm, and the visual influence on the printing on the label is small (almost unnoticeable). On the other hand, in Experimental Example 2, the size of each hole of the perforation is about 0.6 to 0.7 mm, and the visual influence on the printing on the label is large (conspicuous).

  Moreover, the range of the perforation tear force in Experimental Example 1 was 0.5N to 1.6N, and the range of the perforation tear force in Experimental Example 2 was 0.4N to 1.2N. The overall level of the tearing force is not significantly different between Experimental Example 1 and Experimental Example 2. However, in the tearing force characteristic in Experimental Example 1, as shown in FIG. 7, the tearing force is relatively large at the initial stage of the tearing, whereas in the tearing characteristic in Experimental Example 2, the tearing characteristic is shown in FIG. Thus, it is stable in the entire region.

  From the results of the experimental examples 1 and 2, from the viewpoint of minimizing the visual influence on the printing on the label while maintaining the ease of breaking the perforation, the size of each hole of the perforation is as small as possible. It is preferable to make the pitch as small as possible by reducing the pitch as small as 0.1 to 0.2 mm. Such a small visual influence on the printing on the label means that the degree of freedom of the area on the label on which the perforation is to be formed becomes high.

  However, in order to prevent an increase in tearing force at the initial stage of tearing by reducing the size and pitch of each hole of the perforation, the size of the hole of the perforation is increased in a slight range from the knob. It is possible. In this case, the cut length of the blade piece 58 in the predetermined vicinity region (slight range) of the position corresponding to each blade piece 59a, 59b, 59c of the slit blade body 55 in the perforated blade body 52 (53, 54) and What is necessary is just to enlarge a pitch.

  In the above-described embodiment, the perforations 102, 103, and 104 are formed in a region sandwiched between the pair of slit rows {105} and {106} (see FIGS. 2 and 5). , 103, 104 and the pair of slit rows {105}, {106} can be arbitrarily determined. For example, the perforations 102, 103, and 104 can be formed within a width larger than the separation width of the pair of slit rows {105} and {106}. In this case, in the label 100, the perforation 102 and the perforation 104 are formed outside the region sandwiched between the straight line connecting the cuts 105a and 105b and the straight line connecting the cuts 106a and 106b. In any case, a pair of perforations 102, 103, 104 is paired so that the slits 105, 106, that is, the ends of the incisions 105a (105b), 106a (106b) can be reliably broken toward the perforation. The relative positional relationship with the slit rows {105} and {106} is determined.

  Further, perforations are formed on the same straight line as at least one of the slit rows {l05} and {106}, that is, on a straight line connecting the cuts 105a and 105b and at least one on a straight line connecting the cuts 106a and 106b. Can be formed. When perforations are formed on both straight lines, the label 100 is configured as shown in FIG. 9, for example. In this case, it is possible to form slit rows and perforations that are collinear with the label raw material sheet S by a single blade 550 as shown in FIG.

  In the blade body 550 shown in FIG. 10, slit blades 551a, 551b, and 551c are formed at a pitch corresponding to the length of the label 100, and at a pitch corresponding to the arrangement interval of the holes in the perforation. A perforated blade 552 is formed around the periphery. The interval e between each slit blade 551a, 551b, 551c and the perforated blade 552 adjacent thereto is set to be equal to or greater than the pitch p of the perforated blade 552. In place of the slit blade 55 and the perforated blade 52 shown in FIG. 2 and / or in place of the slit blade 56 and the perforated blade 54 shown in FIG. , The slit row {105} and the perforation 102 that are on the same line, or the slit row {106} and the perforation 104 that are on the same line can be formed on the label raw material sheet S.

  In the blade body 550, as described above, the interval e between each slit blade piece 551a, 551b, 551c and the adjacent perforation blade piece 552 is set to be equal to or greater than the pitch p of the perforation blade pieces 552. Thus, the interval between the notches formed on the same line in the label 100 cut out from the label raw material sheet S and the perforation holes adjacent thereto is prevented from being smaller than the arrangement interval of the perforations. Therefore, even when the label 100 is thermally contracted (shrinked) when the label 100 is attached to the bottle 200, it is possible to prevent the cut and the perforation hole adjacent thereto from being connected.

  In the above-described embodiment, the three perforations 102, 103, and 104 are formed on the label 100 (label raw material sheet S). However, the number of perforations formed may be two or less. There may be four or more.

  In the case where four or more perforations are formed, the perforations may be formed so as to be parallel between the slit rows. For example, as shown in FIG. , 134, 135 may be formed in a region sandwiched between the slit rows {105}, {106}, and other portions 131, 132, 136, 137 may be formed outside the slit rows {105}, {106}. it can.

  In the above-described embodiment, the slit blades 55 and 56 and the perforated blades 52, 53, and 54 are mounted on the same shaft 51 (coaxial). The shaft on which the blade bodies 55, 56 are mounted and the shaft on which the perforated blade bodies 52, 53, 54 are mounted can be separated. However, from the viewpoint of miniaturization of the perforation processing mechanism 50, the slit blades 55 and 56 and the perforation blades 52, 53, and 54 are preferably mounted on the same shaft 51.

  Further, a perforation blade 60 shown in FIG. 12 can be used instead of the perforations 52, 53, 54 (see FIG. 3). In the perforated blade body 60, a blade piece 61 is formed at a peripheral portion excluding portions 62a, 62b, and 62c corresponding to the blade pieces 59a, 59b, and 59c of the slit blade bodies 55 and 56 (see FIG. 3). ing. When the perforated blade body 60 having such a structure is used, as shown in FIG. 13, the perforations 141, 142, 143 are sandwiched between two opposing slits 105, 106 in the slit rows {105}, {106}. It is not formed in the area to be formed.

  The label raw material sheet P in which the slit rows {105} and {106} and the perforations 141, 142, and 143 are formed in this manner is formed into a cylindrical shape by the sheet folding mechanism 40 and then crosses the slits 105 and 106. (See the cutting line Lc in FIG. 13), and a cylindrical label is cut out. When this cylindrical label is attached to the bottle, as shown in FIG. 14, the notches 105a and 106a corresponding to the slits 105 and 106 described above are formed on one edge 121 of the label 100, and the other Cuts 105b and 106b corresponding to the slits 105 and 106 are also formed on the edge 122. A portion sandwiched between the cuts 105a and 106a formed on the edge 121 becomes the knob portion 111, and a portion sandwiched between the cuts 105b and 106b formed on the edge 122 becomes the knob portion 112. The perforations 141, 142, and 143 formed between the knobs 111 and 112 are not formed in the knobs 111 and 112.

  In this case, since the knobs 111 and 112 are not cut into strips by the perforations 141, 142, and 143, the appearance as the label 100 is not impaired, and the knobs 111 and 112 are entirely picked to remove the label 100. It becomes possible to cut along the perforations 141, 142, and 143 accurately.

  The blades for forming the slits 105 and 106 and the perforations 102, 103, and 104 described above are not limited to disk-shaped ones (see FIGS. 3, 10, and 12). For example, as shown in FIG. 15, the first slit blade 71 and the second slit blade 72 corresponding to the slits 105 and 106 and the perforations 141 and 142 are formed on a thin substrate by etching, engraving, or the like. , 143 can be formed to form the blade body 70 (engraving blade, etching blade, Thomson blade, etc.). In this case, the blade body 70 is attached to the die, the die 70 is moved up and down while synchronizing with the movement of the label raw material sheet P, and the blade body 70 is pressed against the label raw material sheet P. Thereby, as shown in FIG. 13, slit rows {105}, {106} and perforations 141, 142, 143 can be formed in the label raw material sheet P.

  Further, as described above, the blade body 70 having a thin plate shape may be wound around and fixed to the drum 90. In this case, the drum 90 is rotated with the movement of the label raw material sheet P around the axis parallel to the width direction of the label raw material sheet P while the blade body 70 is brought into contact with the label raw material sheet P. Accordingly, as described above, slit rows {105}, {106} and perforations 141, 142, 143 can be formed in the label raw sheet P as shown in FIG.

  Furthermore, a blade body 80 as shown in FIG. 17 can also be used. The blade body 80 is made by a technique such as etching or engraving, like the blade body 70 described above. In the blade body 80, a first slit blade 81 and a second slit blade 82 corresponding to the slits 105 and 106 are formed, and a line L1 and a second line L1 on which the first slit blade 81 is formed are formed. The perforation blades 83, 84, 85, 86 corresponding to the plurality of perforations are formed so as to be inclined toward the center of the region sandwiched between the line L2 where the slit blade 82 is formed.

  By using such a blade body 80, as shown in FIG. 18, slit rows {105}, {106} are formed in the label raw material sheet P, and a plurality of perforations 151, 152, 153 are formed. 154 (corresponding to the perforation blades 83, 84, 85, 86) is formed so as to incline toward the center of the region sandwiched between the slit rows {105}, {106}. Such a label raw material sheet P is cut so as to cross the slits 105 and 106 (see the cutting line Lc in FIG. 18), and a cylindrical label is cut out. When this cylindrical label is attached to the bottle, a pair of cuts corresponding to the slits 105 and 106 are formed at predetermined positions on each edge of the label 100, and a portion sandwiched between the pair of cuts is a knob. It becomes. The label 100 is formed with a plurality of perforations 151, 152, 153, 154 extending toward the center of the region between the straight lines passing through each of the pair of cuts.

  According to such a label 100, when the knob is pulled along the perforations 151, 152, 153, and 154, the areas between the straight lines that pass through the respective cuts at both ends of the knob by the perforations 151, 152, 153, and 154. The label 100 can be torn while being guided to the center of the label. For this reason, it becomes possible to tear the label 100 linearly without deviating from the area between the straight lines passing through the cuts at both ends of the knob.

  Further, as shown in FIG. 19, a plurality of perforations can be formed on the label raw material sheet by a blade body in which a sewing needle 98 is planted on a drum 95. Also, a plurality of perforations can be formed on the label raw material sheet by laser processing.

  In addition, although the present invention is described with respect to the form of a shrink label that adheres to a plastic bottle for beverages or the like, the container to which the label according to the present invention is applied is not limited to a plastic bottle, a tube, a detergent bottle, Other plastic containers including polyesters such as caps and polyolefins as constituent materials, metal cans and glass containers including aluminum and steel as constituent materials may be used. In addition to the shrink label, the form of the label may be a stretch label or a wound label that is attached by adhering the label end after being wound around the container.

  In addition, as a material of the label raw material sheet used in the present invention, any resin that is usually used for a label can be used. For example, low-, medium- or high-density polyethylene, isotactic polypropylene, ethylene-propylene copolymer, polybutene-1, polymethylpentene-1, ethylene-butene-1 copolymer, propylene-butene-1 copolymer Examples thereof include olefin resins such as polymers, ethylene-propylene-butene-1 copolymers, ethylene-vinyl acetate copolymers, ion-crosslinked olefin copolymers (ionomers), and blends thereof. Furthermore, polystyrene resins such as polystyrene, styrene-butadiene copolymer, styrene-isoprene copolymer, ABS resin, thermoplastic polyesters such as polyethylene terephthalate and polytetramethylene terephthalate, polycarbonate, and the like can be given. Any of these may be used alone or as a blend with other resins. In addition, paper, synthetic paper, non-woven fabric, etc. can also be used.

  As described above, the label raw material sheet processing method according to the present invention can easily cut out a label formed with a knob for tearing along a perforation without generating useless cut pieces. It is useful as a method for processing a label raw material sheet for cutting out a label to be attached to a container such as a PET bottle.

It is a figure which shows the basic structure of the processing machine which processes a label raw material sheet | seat according to the processing method which concerns on embodiment of this invention. It is a top view which shows the detailed structure of the perforation processing mechanism 50 and a sheet folding | turning mechanism. 5 is a view showing a perforated blade body in the perforation machining mechanism 50. FIG. It is a figure which shows the blade for slits in the perforation processing mechanism. It is a figure which shows the relative positional relationship of a slit row | line | column and a perforation. It is a figure which shows the external appearance example of a bottle with a label. It is a figure which shows an example of the tearing force characteristic of the perforation in a label. It is a figure which shows another example of the tearing force characteristic of the perforation in a label. It is a figure which shows the other external appearance example of a bottle with a label. It is a figure which shows the structural example of the blade body for forming a slit row | line | column and a perforation in the label raw material sheet | seat from which the label of the bottle with a label shown in FIG. 9 should be cut out. It is a figure which shows the other example of the relative positional relationship of a slit row | line | column and a perforation. It is a figure which shows the other example of the blade body for perforations. It is a figure which shows the state of the label raw material sheet | seat produced using the blade body for perforation shown in FIG. It is a figure which shows the state which adhered the label cut out from the label raw material sheet | seat shown in FIG. 13 to the bottle. It is a figure which shows the example of the blade body for forming a slit and a perforation. It is sectional drawing which shows the drum-shaped blade body formed by winding and fixing the blade body shown in FIG. 15 to a drum. It is a figure which shows the other example of the blade body for forming a slit and a perforation. It is a figure which shows the label raw material sheet | seat in which the slit and the perforation were formed using the blade body shown in FIG. It is a figure which shows the other structural example of the perforation blade.

Explanation of symbols

11 Feeder 12, 13, 14, 15 Roller 16a, 16b Regulating roller 17a, 17b, 18a, 18b, 19a, 19b Rotating guide roller 20 Coating nozzle 21a, 21b Nip roller 22, 23 Roller 25 Winder 40 Sheet folding mechanism 50 Perforation machining mechanism 51 Axis 52, 53, 54 Perforated blade 55, 56 Slit blade 58, 59a, 59b, 59c Blade piece 60 Perforated blade 70 Blade 71 71 First slit blade 72 Second slit blade 73, 74, 75 Perforation blade 80 Blade body 81 First slit blade 82 Second slit blade 83-86 Perforation blade 90, 95 Drum 98 Perforation needle 100 Label 102, 103, 104 perforations 105, 106 slits {105}, {106} slit array 10 5a, 105b, 106a, 106b Notches 111, 112 Knob 121 121 Edge 131-137 Perforation 141-143 Perforation 151-154 Perforation

Claims (3)

Label raw material sheet moving in the longitudinal direction, while forming a pair of slits columns of slits that are arranged at predetermined intervals in the moving direction of the label-material sheet, the pair of slit matrix perforations of multiple A first step of forming in parallel with the slit row, inside and outside the region between the slit rows ,
; And a second step of forming the label original sheet into a cylindrical shape by joining both edges in the width direction of the pair of label original sheet perforation slit row and before Kifuku number is formed The processing method of the label raw material sheet. It has the process of cut | disconnecting the cylindrical label raw material sheet | seat processed according to the processing method of the label raw material sheet | seat of Claim 1, and cutting out a cylindrical label so that each slit of said pair of slit row | line | column may be crossed. A manufacturing method of a characteristic label.   Cylindrical,
  A knob formed by a pair of cuts on at least one edge;
  A plurality of perforations extending from a predetermined vicinity of the knob toward the other edge;
  The plurality of perforations are formed in parallel with a straight line passing through each of the pair of cuts inside and outside the width of the knob.

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