JPS6024011B2 - How to apply heat-sensitive adhesive labels - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a method of applying a heat-sensitive adhesive to an object by heating a label, the back surface of which is coated with a heat-sensitive adhesive that remains sticky for a long time. Regarding.

(o- Technological background) Conventionally, general labels have been coated with a constantly sticky adhesive and pasted onto a separate paper with good peelability, formed into a sheet or roll, and then peeled off one by one. However, it was attached.

In this method, the separate paper is merely a means for pasting, there is no product price calendar as a label, and the label price increases by the amount of separate paper, making it uneconomical. Furthermore, since the separate paper is as thick as or thicker than the label, it is bulky, and the separate paper after use must be discarded as unnecessary material, making it difficult to handle. 1. Prior Art and Problems What compensates for this drawback is a heat-sensitive adhesive label that does not use separate paper.

However, since this label does not use separate paper, it is difficult to hold the label as a single sheet, and it is difficult to add stripes. As a mechanical method for this, there is a method shown in Fig. 1. First, a paper roll that fits inside the target label 9 is used as the label element 1, and according to the command from the detector 2, it is exposed to the desired length by the feed roll 3, cut by the cutter 4, and then heat-sensitive adhesive is applied. The adhesive 9' is adsorbed and reloaded onto the suction drum 6 with the adhesive 9' facing up, and is conveyed to the front of the heater 5 installed close to the suction drum 6. When the adhesive 9' becomes sticky, it is attached to the product 8 conveyed by the conveyor belt 7.
However, in this method, while the label 9 cut by the cutter 4 is adsorbed onto the adsorption drum 6,
Since the label 9 is heated by the suction drum 6, a complicated mechanism is required to prevent the label 9 from falling from the suction drum 6, and if this suction operation is not well controlled, subsequent labels 9 will be attached to the product 8. It was difficult to realize this method because it was difficult to balance with work.

Further, in this method, since a heater 5 for the heat-sensitive adhesive 9 that utilizes reflected heat is used, there is a drawback that thermal efficiency is poor and a large amount of heat is required. Purpose of the Invention The present invention has been made in view of the current situation. Labels cut to a desired length are placed on a heat-resistant conveyor belt filled with heat, and the labels are conveyed through the heat-resistant conveyor belt. After heating the heat-sensitive adhesive to make it sticky, the heat-resistant conveyor belt is folded at an acute angle in front of the object to peel off the label, and the label is attached to the object. The purpose is to ensure label attachment.

■Structure of the Invention In order to achieve the above object, the heat-sensitive adhesive label pasting method according to the present invention is such that a heat-sensitive adhesive label, which is made by applying a heat-sensitive adhesive that maintains adhesiveness for a long time by heating on the bag surface, is attached to the bag using a heater. The heat-sensitive adhesive is applied onto a conveyor belt made of a material that is heat resistant and has good peelability from the adhesive and is heated by a heater such as The label is conveyed while exhibiting adhesiveness while overflowing, and by folding the conveyor belt at an acute angle, the heat-sensitive adhesive label on the conveyor belt is peeled off and affixed to the object.

Embodiments of the Bamboo Invention The present invention will be explained below with reference to FIGS. 2 and 3 showing typical embodiments.

Reference numeral 10 denotes a rolled paper label element, and a heat-sensitive adhesive 11 that is activated by heating and maintains adhesiveness for a long time even after the heating is removed is coated on the back surface by an arbitrary method.

On the surface 12 of the label element 10, the date of manufacture, serial number, price, weight, product name, product number, etc. are printed or written in advance.
A mark, a vendor, etc. may be displayed in advance, or a printing device may be provided during the feeding process of the label element 10 to display the label. This label element 1
Kawama, unlike the regular tack paper used,
It can be handled in the same way as plain paper without exhibiting stickiness on the back side, and it is not limited to roll paper as shown in the drawing, but can be cut to any size, and the paper quality can also be plain paper with a surface finish. It can be anything. In addition, when the display is formed with heat-sensitive paint or heat-sensitive ink, the heat-sensitive adhesive 11 is made to work at a lower temperature than these.
This is to prevent discoloration due to heating. 13 is a line drawing roll for steering the paper label element 10; 14;
is a detector which operates the feed roll 13 to feed the label element 10 according to a command from a product detector 25, which will be described later, and detects the length of the label element 10.

A cutter 15 cuts the label element 10 to a required length according to the command from the detector 14.

Reference numeral 16 denotes a conveyor belt, which runs over a heater 21 that heats the back side of the label L to allow the heat-sensitive adhesive 11 to exert its adhesive function, and peels off the adhesive label L at the end. be.

The conveyor belt 16 is made of a heat-resistant and adhesive-releasable material, such as Teflon (trade name), and rotates between a drive pulley 17, a small-diameter pulley 18, and a tension pulley 19. Drive pulley 17
, a conveyor belt 16 that rotates a small pulley 18 and a tension pulley 19 has four pulleys 18 protruding at an acute angle so as to form a substantially triangular shape. This is the label L attached to the conveyor belt 16.
This is a necessary requirement for peeling off at the small diameter pulley 18. Since the conveyor belt 16 is made of a material such as Teflon that is heat resistant and has good peelability from adhesives, the label L can be folded at an acute angle by the small diameter pulley 18 as described above. It can be easily peeled off in the same way as peeling off labels from conventional tack paper.
Reference numeral 19 denotes a presser roll, which is used to securely place the cut labels L on the conveyor belt 16.

21 is a heater, drive pulley 17 and small diameter pulley 1
A conveyor belt 16 for conveyance located between the
It is designed to heat the bottom of the

Therefore, the label L is transferred to the heat-sensitive adhesive 11 via the conveyor belt 16 heated by the heater 21.
is heated. Next, the present invention will be explained step by step.

First, a paper label element 10 provided with a predetermined display is wound into a roll and is supported on the rotating shaft 10a, and the tip of the label element 10 is extended to the position of the line drawing rolls 13, 13, and then manually pulled out to the rolls. 13, 13 are operated to cut the label elements I5, 15 of a predetermined length, and several labels L are reloaded onto the conveyor belt 16 for labeling.

The label L on the conveyor belt 16 is overflowed by the heater 21 provided on the back side of the conveyor belt 16, and passes over the heater 21 between the drive pulley 17 and the small pulley 18, so the label L on the conveyor belt 16 is The heat-sensitive adhesive 11 receives sufficient heat from the conveyor belt 16 to become tacky and adheres to the conveyor belt 16. The label L at the tip is conveyor belt 1.
It is located on the small diameter pulley 18 of 6. Next, a conveyor belt 23 provided near the device is rotated to convey the object 24 to be pasted.

When the detector 25 detects the presence of the object 24, the conveyor belt 16 and the line drawing rolls 13 are operated. When the conveyor belt 16 for conveyance rotates, the label L located near the small diameter pulley 18 is folded at an acute angle on the small diameter pulley 18 of the conveyor belt 16 for conveyance, so that it is conveyed while protruding in the direction of travel without being bent. peels off from the conveyor belt 16. Since the press roll 22 is located in front of the small diameter pulley 18, the label L protruding from the conveyor belt 16 is pressed onto the object 24 and is securely affixed as the object 24 advances. Ru. During this labeling, the line drawing rolls 13, 13 and the conveyor belt 16 are driven, and the next label element 10 is fed out, and the label L on the conveyor belt 16 is placed near the small diameter pulley 18 at the tip. Send it to the position.

A detector 14 detects that the label element 10 has been manipulated to a predetermined length.
When detected, the line drawing rolls 13, 13 and conveyor belt 16 are stopped, the cutters 15, 15 cut the label element 10, and the detector 25 cuts the label element 10 to the next object 24.
Wait until the presence of is detected. By sequentially repeating this operation, labeling can be performed continuously. In this embodiment, a pre-printed label element 10 was used, but any printing equipment may be used between the rotary ball that supports the rolled label element 10 and the bare rolls 13, 13. may be provided and printed.

In addition, in this embodiment, the heater 21 is arranged between the drive pulley 17 and the small diameter pulley 18 to reliably heat the label L on the conveyor belt 16. When performing this, the heater 21
Alternatively, the conveyor belt 16 may be heated by another heating means. [G) Effects of the Invention As described above, the present invention provides a heat-sensitive adhesive label that is conveyed on a conveyor belt that is flooded with a heater or the like to make it sticky, and then the heat-sensitive adhesive label is conveyed on a conveyor belt that is flooded with a heater or the like to make it sticky. Since the label is peeled off from the conveyor belt through one acute fold of the belt, it is simple and does not require any special mechanism such as suctioning the heat-sensitive adhesive label when it is heated.

Furthermore, since a removable separator such as tack paper is not required, the label itself can be manufactured at low cost. Also,
Since the heat-sensitive adhesive label that is placed on the conveyor belt is overflowed via the conveyor belt, it can be heated efficiently and the heater can be built into the conveyor belt, so it does not require special space. There are advantages such as not.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing the conventional labeling method.
FIG. 2 is a process explanatory diagram of the present invention, and FIG. 3 is an enlarged view showing the state of label attachment. 10... Label element, 11... Heat-sensitive adhesive, 16... Conveyor belt, 21... Heater, L""" label. Fig. 1 Fig. 2 Fig. 3 figure

Claims (1)

[Claims] 1 A heat-sensitive adhesive label is made of a material that is heated by a heater such as a heater and is heat-resistant and has good releasability from the adhesive. The heat-sensitive adhesive is conveyed using the conveyor belt as a medium while heating it to make it sticky, and is conveyed by folding the conveyor belt at an acute angle. A method for applying a heat-sensitive adhesive label, characterized in that the heat-sensitive adhesive label on a conveyor belt is peeled off and then affixed to an object.