EP1256537A2 - Roller of strip or band-shaped material with an identification code and process for its manufacturing - Google Patents

Abstract

The invention relates to a tape reel, particularly suitable for tape-shaped magnetic recording media, consisting of a winding core (2) with a magnetic tape (10) wound thereon, cut to the width of use, and an inexpensive and easy-to-use adhesive sealing strip (50, 51) with integrated identification marking and a process for the production of such tapes. <IMAGE>

Description

The invention relates to a roll of strip or tape-shaped media in particular, tape-shaped magnetic data recording media with a Identification marking and a process for their production.

Rolls of strip or ribbon-shaped media, especially magnetic Data recording media generally consist of a winding core that of the recording medium cut into the width of use often in one length of several thousand meters is wound up. The free end of the record carrier is fixed to the outermost turn of the winding. Besides, is Usually there is a label on the outside of the wrap, which contains a product identification or a production batch code.

Magnetic recording media essentially consist of a plastic carrier film and one applied thereon using known coating methods magnetizable coating. The manufacture of this magnetic Record carriers are usually made in a much larger width than the width necessary for the application. The record carrier becomes after the coating wound into so-called semi-finished rolls, their length is a multiple of the later usage length.

In a further processing step, the semi-finished rolls are converted into the for the Application necessary bandwidths, for example ½ "(12.7 mm) for video cassettes or 3.81 mm for compact audio cassettes with so-called slitting machines cut.

The basic structure of such a slitting machine is shown in FIG. 1 shown. The machine essentially consists of a unwind station (100) for wide semifinished rolls, a cutting and gluing table (200), a slitter (300), a band spread (400) for separating the Tapes cut to width, a winding station (500) for winding of the individual cut bands as well as several guide and Drive rollers (600) for transporting the wide, uncut semi-finished web (HFB) and the cut single strips (EB) in working width.

When at the take-up station (500) the tape winds up to a predetermined one Length are wound up, the cutting process is interrupted and the wide Semi-finished web (HFB) is on the cutting table (200) transverse to the longitudinal direction of the Ribbon cut through. Then the two are at the cutting table abutting tapes with one glued across the width of the web Adhesive tape connected again. Then the cutting process continued, the transversely attached adhesive tape cutting the slitter (300) runs through and also to the width of the cut Magnetic tape is cut, which is now in each tape there is a glue point that starts the end of the first tape (3) of the following band (4) connects, as can be seen from Fig. 2. If the Adhesive point reaches the tape rolls (1) wound on the winding cores (2) the cutting process is interrupted again and the gluing points become opened by pulling the adhesive strips (5) on the non-adhesive ones Handles (6) of the adhesive strip are peeled off from the following tape (4) become. The adhesive area (5.1) of the adhesive strip (5) which is thereby released is then glued to the outside of the tape wrap (1) and the tape wrap is ready for sale closed, with reference to Figure 3. If the tape wrap for the further processing must be opened again later, this is by dragging easily possible on the handle (6) of the adhesive strip (5).

To label the tape roll with a product name or a Production batch code can the adhesive tape (5) with a print (7) be provided. However, this requires a sufficient dimension of the adhesive tape (5) ahead. In addition, the adhesive tape (5) with one for the selected printing processes such as dot matrix printers or thermal transfer printers suitable surface quality. The Andes Adhesive tape in this process made requirements in terms of width, non-sticky handle (6), printable surface require specially manufactured Adhesive tapes, which are relatively expensive.

Has the greater width of the adhesive tape required by the printing also the disadvantage that when cutting in the slitter (300) the circular knife used for cutting a longer contact with have the adhesive tape and thus an increased adhesive deposit on the Knives occur, which reduces the life of the knives and the quality of the cut magnetic tape impaired.

In another conventional method, the cutting and gluing table (200) Connection between the first and subsequent tape so that a So-called "open" glue point (5.2) is formed, that is between the the first band (3) and the following band (4) is a sticky area (5.2) of the adhesive strip (5). If the "open" glue point (5.2) after the Longitudinal cutting arrives at the tape roll (1) The winding process is simply closed and the beginning of the next one Tape (4) is cut transversely behind the adhesive strip (5). The one on In this case, the remainder of the remaining ribbon (4) remains as Handle for opening the tape wrap, which shows Figure 4.

It is also common to use the adhesive strip (5) only for closing the tape roll use and a separate label (8) with To use printing (9), which with separate adhesive strips (10.1, 10.2) on Tape wrap (1) is attached, as shown in Figure 5.

The procedure with the "open" glue point (5.2) has for magnetic tapes with high Quality requirements have the disadvantage that the "open" glue point during transport through the slitting machine the transport rollers (600) and the Cutting knife touches, which creates adhesive deposits on machine parts which can affect the quality of the magnetic tape produced.

It was therefore the task of a winding from strips or strips To provide media, in particular magnetic data recording media, which does not have the disadvantages of the prior art described, in particular produce an adhesive tape with identification marking, which the manufacturing costs are reduced and it is easy to attach to the tape wrap.

Another object was to provide a process for making such To provide tape wraps; with no "open" glue point through the slitter to be transported.

The first object was achieved according to the invention by one on a winding core wound tape-shaped data recording medium, the closure element the outermost winding layer on the tape winding is designed so that closed with a simple, narrow adhesive tape both the tape wrap as well as a label is attached so that this label as a handle for opening the sealing tape of the tape roll can be used.

The second object was achieved with a method for producing the above described tape roll, the closure element of the tape roll including the label when passing through the junction between the end of a first semi-finished web and the start of one another semifinished web is formed by a slitting machine, the connection point consisting of an adhesive strip and a printed There is a label strip, the adhesive strip fixing the label strip in such a way that this can be used as a handle to open the finished tape roll.

Further details of the invention emerge from the claims, the description and the drawings.

Figur 1:

eine schematische Darstellung einer Längsschneidemaschine

Figur 2:

eine schematische Darstellung einer Klebestelle nach dem Stand der Technik, kurz vor dem Erreichen des Bandwickels

Figur 3:

eine schematische Darstellung eines fertigen Bandwickels nach dem Stand der Technik

Figur 4:

eine schematische Darstellung eines Bandwickels nach dem Stand der Technik mit einer sogenannten offenen Klebestelle

Figur 5:

eine schematische Darstellung eines Bandwickels nach dem Stand der Technik mit einem separat befestigten Kennzeichnungsetikett

Figur 6:

eine schematische Darstellung eines erfindungsgemäßen Bandwickels mit Kennzeichnungsetikett

Figur 7:

eine schematische Seitenansicht eines Schneidtischs zum erfindungsgemäßen Herstellungsverfahren der Verbindungsstelle der Halbfabrikatbahnen

Figur 8:

eine entsprechende Draufsicht

The drawings show:

Figure 1:

a schematic representation of a slitter

Figure 2:

is a schematic representation of an adhesive point according to the prior art, shortly before reaching the tape roll

Figure 3:

is a schematic representation of a finished tape reel according to the prior art

Figure 4:

is a schematic representation of a tape wrap according to the prior art with a so-called open adhesive point

Figure 5:

is a schematic representation of a tape reel according to the prior art with a separately attached label

Figure 6:

is a schematic representation of a tape reel according to the invention with identification label

Figure 7:

is a schematic side view of a cutting table for the manufacturing method according to the invention of the junction of the semifinished webs

Figure 8:

a corresponding top view

A tape wrap according to the invention is shown schematically in FIG. 6. The Closure element of the tape roll (10) wound on the winding core (20) consists of a narrow adhesive strip (50) with an adhesive underside (51), with the adhesive strip on one side the end of the last winding layer (3) of the winding (10) by a short distance, for example in the range of a few millimeters overlaps. At its other end, the adhesive strip (50) overlaps by a few One millimeter with the identification mark (70) on its top printed label (60) with the adhesive strip on the top of the label (60) adheres. The adhesive tape is between the two overlapping areas mentioned (50) in an area (50.1) with the outer layer of the tape roll (10) bonded. The total length of the adhesive strip (50) results from the two Overlap areas to the outermost tape layer (3) or to the label (60) and the length of the bond (50.1) with the outer layer of the tape roll (10). at this embodiment of the tape roll (10) according to the invention fulfills the label (60) also the function of the handle for opening the tape roll at the Further processing of the tape, for example when cassetting. The Adhesive tape (50) can be used to differentiate between the types Band types in different colors.

The advantage of the embodiment according to the invention is that the adhesive strip is narrow, no printable surface is required and no special one Form of assembly with an adhesive-free handle is necessary. Therefore a simple commercially available roll of tape is used as the adhesive strip expensive custom-made products are not required. The label can be made Paper or a plastic film. Overall, the invention Solution very inexpensive. Since the adhesive strip (50) is narrow, the Knives of the slitter only a short distance through the adhesive cut, which adversely affects the quality of the adhesive deposits on the Cutting knives can be reduced.

A method for producing a tape roll (10) according to the invention is now described with reference to Figures 1, 6, 7 and 8.

As can be seen from FIG. 1, a semi-finished roll is stored in the unwinding station (100) (HFR) unrolled and initially by means of guide rollers (600) guided contactlessly over the cutting table (200) and reaches the slitter (300). The resulting cut ribbons are cut into the band spread (400) fanned out and fed to the rewinder (500), where they are wound up into tapes. If the winding up the Tape winding have reached a predetermined length, the cutting process interrupted and the semi-finished web is released by releasing the belt tension lowered onto the cutting table (200). The cutting table has one porous surface, causing the semi-finished web to be sucked into the suction table and can thus be fixed. Then the semi-finished product line is along the line I-I cut across the direction (v) of the web. On the suction table are the two semi-finished products HFB1 and HFB2 directly next to each other fixed.

The label strip (60) with a suitable printing device, for example Dot matrix printer or thermal transfer printer, transverse to its longitudinal direction with the Identification marking (70) printed, the printing in one Line spacing takes place, which corresponds to the width of the strips to be cut; for example 3.81 mm for compact audio tapes. The printed one The label strip is now on the semi-finished web pointing to the unwind station (100) HFB2 placed so that it is a distance A in the Has a size of a few millimeters. So that the label strip (60) in its position is fixed, the length L of the label strip is conveniently something chosen larger than the width W of the semi-finished web, so that the Label strips are sucked in at both ends on the cutting table (200) can. Then the adhesive tape (50) is attached so that it is both a Overlap. with the semi-finished train HFB1 in length B as well Has an overlap with the label strip (60) in length C. Thereby owns the adhesive strip (50) also connects to the semi-finished product HFB2 in the Length A.

In this way, a connection between the two semi-finished products HFB1 and HFB2 without so-called "open" glue points manufactured and also the label strip (60) is just behind the The joint of the two semi-finished products HFB1 and HFB2 is fixed.

Then when the connection between the two Semi-finished webs running through the slitter (300) are started Corresponding connection points in width for each individual strip of tape of the cut tapes. If these junctions in the individual tapes finally arrive at the take-up station (500), the Cutting and winding process interrupted. On each individual tape wrap (10) can now pull the label strip (60) that serves as the handle Connection point in the band can be opened and then with the free sticky area (50.1) between the web end (3) and the label strip (60) longitudinally separated adhesive strips (50) on the outer layer of the tape roll (10) be glued. The tape wrap is now ready for sale. In the further processing of the tape reel (10), this can again with the help of serving as a handle tab strip (60) are opened, on the The identification label (70) is also printed on the handle.

With the manufacturing process described are simple Starting materials, namely adhesive strips (50) and label strips (60) Adhesion point and identification marking of the invention Tape winding produced according to Figure 6.

The application of the described invention is not for winding magnetic data carriers, but is also limited advantageously expandable with other strip or ribbon-shaped media.

Claims (6)

Roll of strip or tape-shaped media, in particular tape-shaped magnetic data recording medium, consisting of a winding core (20) with a strip or tape-shaped data recording medium (10) wound thereon, the end of the tape (3) by means of a printed adhesive strip (5) on the tape roll (10) is fastened, characterized in that the closure element of the tape roll (10) is formed by an adhesive strip (50) with an adhesive underside (51), the adhesive strip (50) having one end of the end (3) of the wound tape by a length (B) overlaps and with its other end overlaps a label strip (60) by a length (C) to the top of which it adheres, the adhesive strip (50) between the two overlap regions in an area (50.1) with the length (A) is glued to the outer circumference of the roll (10) and the label strip (60) is provided on its top with an identification mark (70). Winding according to claim 1, characterized in that the label strip (60) consists of paper or a printable film. Winding according to claims 1 and 2, characterized in that the label strip can be printed on by means of a needle or thermal transfer printer. Wrap (10) according to claims 1 to 3, characterized in that the adhesive strip (50) is colored. A process for producing a roll from strip or tape-shaped media, in particular a tape-shaped magnetic data recording medium, consisting of a winding core (20) with a strip or tape-shaped data recording medium (10) wound thereon and a closure element (50, 60, 70) for the roll according to Claims 1 to 4, characterized by the steps a wide semi-finished web (HFB) coming from a unwinding station (100) comes into a slitter (300) and is cut into individual strips (EB) in the width of use and then fed to a rewinder (500) When a predetermined length of the tape roll is reached, the standing semi-finished web is lowered and cut transversely to a cross-cutting device (200) arranged between the unwinding (100) and the slitter (300), with both web ends HFB1 and HFB2 being fixed in position A label strip (60), the length of which is at least equal to the web width of the semi-finished roll (HFR) and which is printed with identification markings such that the line spacing of the printings corresponds to the width of the individual strips (EB), is placed on the following web (HFB2) that it is at a short distance (A) from the cutting line then the adhesive strip (50), the length of which corresponds approximately to the web width of the semi-finished product rolls (HFR), is lowered with its adhesive underside (51) onto the webs approximately in the center of the interface so that it both overlaps the length (B) of the first semifinished web (HFB1) as well as an overlap of the length (C) with the label strip (60) and also has a connection of the length (A) with the second semifinished web (HFB2) the semi-finished webs (HFB1, HFB2) connected in this way are then driven through the slitter (300). When the connection point of HFB1 and HFB2 on the rewinder (500) is reached, the connection point is opened by pulling the label strip (60) while the web is stopped and the then free sticky area (50.1) of the longitudinally separated adhesive strip (50) between the web end (3) and the label (60) on the outer layer of the tape roll (10). A process for producing a roll according to claim 5, characterized in that the length L of the label strip (60) is slightly larger than the width of the semi-finished roll (HFR).

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