CN1361727A - Method for changing label paper of tape core - Google Patents

Abstract

The invention discloses a method for quickly changing label paper of an adhesive tape paper core. The first inner core (54) is first extracted from the core (50), a second inner core (62) is provided, the second inner core (62) comprises a contact surface (69) and an inner surface (68), and the inner surface (68) comprises a second trademark paper (65). A glue layer (66) is then applied to the contact surface (69) of the second inner paper core (62). A second inner paper core (62) is inserted into the paper core (50) to replace the first inner paper core (54).

Description

Method for changing the label paper of the tape core

Technical field

The invention relates to a method for changing the label paper of the tape core. More specifically, the present invention relates to an automated method for rapidly changing the label stock of a tape core to significantly reduce the cost of stocking tape in the event of an order cancellation.

Background technique

In the tape product manufacturing process, the tape is first wound around a paper core with a length of about 25 to 200 cm, which is used as a base, and then the tape and the paper core are cut into pieces of the same size to form the tape product. Referring to Figure 1, Figure 1 shows an adhesive tape product 10 according to the prior art. As shown in FIG. 1 , an adhesive tape product 10 includes a paper core 12 and an adhesive tape 14 wrapped around the paper core 12 . Brand paper 16 is previously formed on the inner surface of the paper core 12 to reveal the company's logo. However, once the OEM order associated with the tape product 10 is cancelled, there is a significant financial loss for the product in stock because the label paper 16 has been previously attached to the inner surface of the tape core 12 . Adhesive tape product 10 with a currently useless trademark cannot be sold to a second company. Thus, utilizing a paper core 12 attached to prior art brand paper 16 is disadvantageous because the brand paper 16 cannot be easily changed.

The prior art method for changing the label paper 16 involves first peeling the attached label paper 16 from the paper core 12 and then attaching new label paper to the inner surface of the paper core 12 . The whole process is done by hand and is therefore extremely inefficient. This results in a great waste of manpower and time. In addition, the new label paper attached to the inner surface of the paper core 12 occasionally comes off, resulting in a decrease in the overall quality of the adhesive tape product 10 .

Referring to FIG. 2 , FIG. 2 is a schematic diagram illustrating the formation of a paper core 20 according to a prior art method. As shown in FIG. 2 , the paper core 20 is formed by means of eight partially overlapping pieces of kraft paper 34 . The 8 sheets of paper 34 are wound around the steel roll 22 in the direction of the arrow 28 and then cut by the cutting blade 26 into segments of equal length (from 25 to 200 cm). The first (innermost) layer of the paper core 20, ie, the brand paper, is first wound around a roll 22 in the process. The other layers of paper 34 are formed from kraft paper of different thickness or the same thickness, as the case may be. It should be noted that before the 8 sheets are wound on the roll 22, each sheet except the label paper is coated with a layer of glue using the applicator roll 24, followed by heat treatment of the wound paper core 20 to form a tightly bonded The paper core 20, so that each of the 8 sheets cannot be separated from each other.

Contents of invention

Therefore, it is a primary object of the present invention to provide an efficient method for changing the label paper of the tape core, thereby reducing the cost of tape products in stock.

Another object of the present invention is to provide an efficient and economical and easily automated method for changing the label paper of the tape core.

In a preferred embodiment of the invention, the tape comprises multiple layers of tape wrapped around a paper core. The paper core includes an outer paper core and a first inner paper core. The first inner paper core includes a first brand paper. The paper core consists of m layers of paper. The first inner paper core consists of n layers of paper, while the outer paper core consists of (m-n) layers of paper. The outer diameter of the second inner paper core is smaller than or equal to the outer diameter of the first inner paper core.

The first inner core is first drawn out from the core. A second inner paper core is set. The second inner paper core includes a contact surface and an inner surface, and the inner surface includes a second brand paper. Then, a layer of glue is applied to the contact surface of the second inner paper core. The second inner paper core is inserted into the paper core to replace the first inner paper core.

These and other objects of the present invention will no doubt become apparent to those of ordinary skill in the art after reading the following detailed description of the preferred embodiments, each of which is illustrated in the various figures and drawings.

Description of drawings

Figure 1 shows an adhesive tape product according to the prior art;

Fig. 2 is a schematic diagram of forming a paper core according to a prior art method;

3 and 4 are schematic diagrams illustrating a method for changing a label paper of an adhesive tape according to the present invention.

Detailed ways

Referring to FIG. 3 and FIG. 4, FIG. 3 and FIG. 4 are schematic diagrams illustrating a method for changing a label paper of an adhesive tape according to the present invention. To simplify the following discussion, tapes are omitted in the following figures. As shown in FIG. 3 , the paper core 50 that has not been cut into segments includes an outer paper core 52 and a first inner paper core 54 having a first brand paper 56 . The paper core 50 consists of m plies of paper, as indicated, formed by wrapping around a roll (not shown). The first inner core 54 consists of n layers of paper, while the outer core 52 consists of (m-n) layers of paper. The innermost layer of core 50 , ie, the first layer of first inner core 54 , is brand paper 56 . Each of the n plies of the first inner paper core 54 is bonded together, while each of the (m-n) plies of the outer paper core is bonded together. In this preferred embodiment, m is greater than or equal to 7, and n is less than 7 but greater than or equal to 3.

The paper core 50 is formed by not applying any glue between the first inner paper core 54 and the outer paper core 52, that is, between the nth layer and the n+1th layer, during the rolling process described previously. . Thus, the first inner core 54 and the outer core 52 are secured together by friction in their local overlapping areas. Therefore, the first inner paper core with the first ply (ie, brand paper) to nth ply of paper and the outer paper core 52 with (m-n) plies can be mechanically separated. The outer diameter D of the first inner paper core 54 has various specifications, including 26mm, 32mm, 38mm, 44mm and so on.

In the event that the manufacturer needs to change the label stock due to an order cancellation, an automatic external gripper (not shown) automatically picks up and secures a paper core 50 . An inner clamp then reaches inside the core 50 , more specifically, inside the first inner core 54 to be secured to the first inner core 54 . After several turns of the inner jaws, the first inner core 54 is drawn out of the core 50 in the direction of arrow 58 .

In Fig. 4, a second inner paper core 62 having an outer diameter d which is 0.2 mm smaller than D (the outer diameter of the first inner paper core 54) is provided. The second inner paper core 62 includes a contact surface 69 and an inner surface 68 , and the inner surface 68 includes the second brand paper 65 . A glue layer 66 is applied to the contact surface 69 of the second inner paper core 62 . Before the glue layer 66 dries, the second inner paper core 62 is inserted into the paper core 50 in the direction of the arrow 64 , more specifically, into the outer paper core 52 by the inner clamps.

In order to avoid deformation or damage of the adhesive tape during the mentioned heat treatment, the glue layer 66 is preferably selected from materials with fast drying and lubricating properties. The glue layer 66 may include phenolic resin, urea-formaldehyde resin, melamine resin, polyvinyl acetate (PVAc), acrylic resin, epoxy resin, or hot melt.

Compared with the method of the prior art, the present invention is more economical, labor-saving and time-saving, and it is easier to change the label paper in an automatic manner. In addition, the second inner paper core having the new label paper on its inner surface is not easy to fall out, thereby improving the overall quality of the tape product and saving the manufacturer from losses due to competition among various OEM companies.

Those skilled in the art can easily understand that various modifications and substitutions can be made to the device while keeping the teaching content of the present invention unchanged. Accordingly, the above disclosure should be read as being limited only by the metes and bounds of the appended claims.

Claims (11)

1. method that is used to change the label paper of refill, refill is used as the substrate of adhesive tape around its winding, and refill comprises refill in outer refill and first, and refill comprises first label paper in first, and this method comprises:

The first interior refill is extracted out from refill;

Refill in second is provided, and the second interior refill comprises contact surface and inner surface, and inner surface comprises second label paper;

Glue layer is coated on the contact surface of refill in second; And

The second interior refill is inserted in the refill, to replace refill in first.

2. the method for claim 1 is characterized in that, refill is made of m layer paper, and the first interior refill is made of n layer paper, and outer refill is made of (m-n) layer paper.

3. method as claimed in claim 2 is characterized in that m is more than or equal to 7, and n is less than 7 and more than or equal to 3.

4. method as claimed in claim 2 is characterized in that, ground floor paper is first label paper.

5. method as claimed in claim 2 is characterized in that, each layer all is bonded to together in the n layer paper of the first interior refill, and each layer all is bonded to together in (m-n) of outer refill layer paper.

6. the method for claim 1 is characterized in that, the external diameter of the second interior refill is less than or equal to the external diameter of refill in first.

7. method as claimed in claim 6 is characterized in that, the external diameter of the second interior refill is than the little 0.2mm of external diameter of the first interior refill.

8. the method for claim 1 is characterized in that, on the contact surface of the interior refill of glue layer topical application to the second.

9. method as claimed in claim 8 is characterized in that glue layer comprises phenolic resins, urea formaldehyde resin, melmac, polyvinylacetate, acrylic resin, epoxy resin or thermosol.

10. the method for claim 1 is characterized in that, the second interior refill is made of w layer paper.

11. method as claimed in claim 10 is characterized in that w is more than or equal to 3.

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