DE1919084A1 - Carrying bag and method of making it - Google Patents

Description

KALLE STAKES ELLSCHAFTi 919084 Our · Zeidiin day sheet

K 1891 A / Gbm WA ¹ FP-Dr.Wa.-jm 1 *. April 1969

Description for the registration of

COLODENSE LIMITED Bedminster, Bristol, 3 ENGLAND

for a patent on a carrier bag and its manufacturing process

The present invention relates to a tube made from a thermoplastic plastic tube Carrying bag, especially one whose tube walls extend over the entire length of the Pocket-extending, outward-facing, strip-shaped, Elevations of the same material that are homogeneously connected to the tubular film as the tubular film having.

The present invention further relates to a method for producing such a carrier bag,

909846/0982

KALLE AKTIENGESELLSCHAFT ^ 9084

4r Unier ZaidiM Tog BIaH

K 189U A / Gbm WA ¹ · FP-Dr.Wa.-jm · 14 .4. "1969 t

There are carrier bags known that reinforce the Pocket walls with gripping opening in the area near the opening have the same. The known reinforcements are upwards from the opening edge of the pocket walls and laterally bounded by the side edges of the same. In these known carrier bags, the reinforcement zone is either formed by the same material from which

^ the bag itself consists of a flat one Structure of sufficient flexural rigidity and strength that consists of a different material than the carrier bag itself. In both cases, the reinforcement must be carried out by means of a special operation on the Bag to be formed. Known pockets are also reinforced in the opening area along the opening edge and so secured against tearing in this area. However, this type of reinforcement does not allow the pocket to be filled with particularly heavy goods. To this

"To achieve this goal, the familiar carrier bags must be used as a whole be made of material of thicker wall thickness.

The object of the invention is to be seen in proposing a carrier bag that has the disadvantages of the known Does not have carrier bags, as well as to specify a method by means of which it is possible in a simple manner to these Manufacture carrier bag.

9Q9846 / Q982

KALLE

K 189H A / Gbm 104 A

Un «r · Zeidien Tog BIaH

FP-Dr.Wa.-jm 14. U. 1969 #

The task is solved by a carrying bag made of a flexible piece of thermoplastic plastic tubing, which is closed at one end and has handles or gripping openings at the other end and that thereby is characterized in that the hose piece is two diametrically opposed has opposing, strip-shaped, longitudinally extending, outward-facing elevations, which thicker than the rest of the hose wall, and the handles attached to the thick strips or completely off the same are formed or gripping openings in the thick strips.

The method of making the aforementioned carrier bag is characterized by the fact that one thermoplastic plastic melt through an annular Aüstrittsspalt with two diametrically opposed sections that are much wider than the remaining gap are, too. a tube with two diametrical opposite, from · the same piece · as this one shaped strip-shaped bumps extruded, the Hose to. Solidification of the thermoplastic material cools, folds it flat, whereby, the longitudinal, strip-shaped, thick elevations lie one above the other, seal it in the length of the pocket in the transverse direction

KALLE AKTI E NGESELLSCHAFT ^ 19084

^ Our «sign day sheet

K 189H A / Gbm WA ¹ FP-Dr.Wa.-jm April 11, 1969 Jk

and cuts so that individual pockets with an open and a closed end are created, and before, during or after the transverse sealing and cutting, carrying handles or gripping openings at the open end of each pocket completely in the Attaches area of the strip-shaped, thick elevations or educates.

A strip-shaped elevation from the film forming the tube is to be understood as such an elevation which rises out of the plane of the outward-facing surface of the hose and out consists of the same material as the film that the Forms hose, this elevation is homogeneously connected to this film. Under homogeneous connection, in In this context, it should be understood that the film and the elevation are carried out simultaneously in the shaping process for the production of the uniquely profiled hose, animal the extrusion of the polymer raw material to the hose, be generated.

A welded joint in which a profile strip with the outward-facing surface of this piece of tubing by gluing or welding or connected by other means is intended in this context cannot be described as homogeneous.

98Λ6 / 0962

KALLE AKTIENGESELLSCHAFT ^ 19084 O ^ our · Zaidien day sheet

K 1894 A / Gbm HOU A ¹ F * P-Dr.Wa.-jm m. 4. 1969 JT

Below the thickness of the elevation is the shortest distance to be understood between the highest point of the same and the outward-facing surface of the tubular film.

The strip-shaped elevation extends on the after outside facing surface of the carrier bag from the opening edge to the lower edge of the same. Are there the strip-shaped elevations lying diametrically opposite one another on the tube piece are essentially of the same width and their side edges have the same distance from the side edges of the bag, so that the strip-shaped In the case of bags laid flat, elevations come to lie essentially congruently on top of one another.

The handles can particularly advantageously be formed coherently from one piece with the bag, by cutting the tube at the open end of the bag into the desired shape so that each of the two Carrying handles are formed from the part of the hose which has a greater wall thickness than the rest of the hose Hose. The handles can also be formed separately and then on the reinforced part of the hose with known Means to be attached. The gripping openings expediently consist of one or more slots,

909846/0962

KALLE AKTI E NGES E LLSCHAFT 1 91 908A

9 Under · Ztichm Tog BIoIt

K 189U A / Gbm tiOU A ¹ 'FP-Dr.Wa.-jm "14. 4. 1969 Jt

through the two strip-shaped thick elevations at corresponding points on the opening of the pocket are cut congruently so that the piece forms handles between the slots and the open end. To the For more convenient handling, the slots can be curved.

The thickness of the strip-shaped elevations is advantageously at least twice the thickness of the others Hose wall. In special cases, however, it can be advantageous that the strip-shaped elevations Be three or more times the thickness of the hose wall. The thick bumps serve to increase the resilience of the To increase the carrying bag and the contents in the bag when the bag is being carried, an appropriate one To give support. In addition, they give the otherwise limp bag a certain stiffness and contribute to it to keep the general form.

In a preferred embodiment of the invention are to increase the capacity of the bag at a certain width on both side edges of the Pocket formed with inward-facing gussets. Appropriately the side folds are formed during the manufacture of the hose when the hose is laid flat.

909846/096 2

KALLE AKTI E NGES E LLSCHAFT 191 9084

r Our · sign day sheet

K 1891 A / Gbm UQI A ¹ FP-Dr.Wa.-jm April 14, 1969 f

Used to produce the bag according to the invention one expediently a film tube made of poly, ethylene, although other thermoplastic materials are also such as polypropylene, polyvinyl chloride, polyester, polyamide, polyvinylidene chloride copolymer can be used. The thermoplastic material can be transparent, translucent or - opaque by adding suitable pigments be,. The hose can cover its entire surface with a suitable. Pattern and / or a lettering or printed in the area of the thick stripes. To facilitate pressure, the hose can be pretreated by any conventional pretreatment method, for example electrical Discharge. .

Various examples of bags and their manufacturing methods will now be described with reference to the following drawings. . -, · .., .... . _; . - ......

Figure. 1 is a schematic representation of a con .. . ... continuous process for the production of

Figure 2 shows a part in a view from below, of Figure 1.

9098A6 / 0962

Cold

., -; Our signs tag 'sheet

K 18 9 HA / Gbm WA ¹ " . FP-Dr.Wa.-jm IH. U .. 19.6,9., ^

Figure 3 is a perspective view of a stretcher -;.; "., --_ ^. ,,

pocket shape. . ■. -.._-. , i ^ ---?>, - ^ w,

Figures 4 and 4 are a perspective view _? and, ■ .., a cut of a. Part of another stretcher ^ - ^^ v; _v ;

pocket shape. '"... ■ vu ^ - wä.

Figure 5 is a perspective view of another _; λ,

Carrier bag shape. ^ j; ; i? K ^ ;. £.

Figure 6 shows the perspective view of a stretcher r ^ o ^ ■ represents a pocket shape in which the handles are homogeneously connected to the elevations 5.

In FIGS. 1 and 2, a polyethylene melt is pressed from an extruder (not shown) into a hose-forming nozzle 1 with an annular outlet opening 2, from which a hose 3 made of polyethylene melt is extruded. The annular outlet gap 2 is widened by two diametrically opposite sections 4 and 4 ^{1 of the} same in such a way that two diametrically opposite, strip-shaped thick elevations 5 and 5 ¹ arise from the plane of the outer surface of the extruded tube 3. The elevations 5 and 5 'are at least two times as thick as the other wall parts of the tube .3.

The hose 3 is cooled below its solidification point by placing a cooling ring 6 on the hose

98A6 / 0962

BATHROOM OHIGiNAL KALLE AKT1ENGESELLSCHAFT1919084 J Our Ztichin day sheet

K) 189t A / Gbm kOH A ¹ FP-Dr.Wa.-jm April 11, 1969

Cooling air leads and then away from the nozzle 1 between a Pair of rotatably driven nip rollers 7 and 7 'drawn and folded flat, the strip-shaped Elevations 5 and 5 'lie one above the other. Just before· When the hose 3 is collapsed, the side folds 8 and 8 'are formed in the hose 3 by folding fingers 9 and 9' namely along the edge lines of the folded tube 3.

The folded tube 3 is then heat-sealed perpendicular to the longitudinal direction of the tube or to the edge of the tube opening along a zone 10 at pocket-length intervals with heat-sealing bars 11 and II ¹ in the transverse direction, whereby it is tightly closed at this end. A little below each strip 10, gripping openings 12 and 12 * are cut out of the tube 3 in the area of the elevations 5 and 5 'with a cutting device 13, and individual pockets 14 are separated from the tube 3 with a knife 15 that cuts across the tube 3 between intersects the strip 10 and the gripping openings 12 and 12 ', leaving the parts 16 and 16' of the protrusions 5 and 5 'between the gripping openings 12 and 12' and the cutting line large enough for suitable grips.

9 0 9 8 4 6/0 9 6 2

KALLE AKTI E NGES EILSCHAFT 1919U8 4

J Q UniaraZwdMn day sheet

K 18 9f A / Gbm HOM A ¹ ■ 'FP-Dr.Wa.-jm HH. .4i

In the case of the bag shown in Figure 3, the gripping ■ "■ ' openings 12 and 12 'curved downwards and are thereby more comfortable handles.

In the case of the bag shown in FIG. 4, the gripping openings are 12 and 12 'only partially punched out and form tabs 17 and 17. '. The tabs 17 and 17 'are when inserting the fingers through the gripping openings 12 and 12 '(as shown in Figure 4) and contribute to it at keeping the bag closed.

In Figure 5, separate handles 18 and 18 'are from one with the hose material weldable thermoplastic material (for example polyethylene) to the elevations 5 and 5 'are welded, and in Figure 6 are at the open end of the bag from the elevations 5 and 5 "from the Material like these existing handles 19 and 19 * cut and thus homogeneously connected to them.

The transverse sealing and the cutting process can be carried out at the same time are executed.

The mass of the bag and the thickness of the strip-shaped thick bumps and the remaining parts of the pocket wall

909846/0962

Ij · · To ere sign day BIaH

K 1894 k l Gbm WA ¹ "/ ** 'FP-Dr. Wa.-jm 14. 4. 1969> *

depend on the intended use of the bag and the weight that the bag will carry target.

Has in a special carrier bag according to the invention the bag has a width of 30 cm, a length of 50 cm and 5 cm deep gussets. The bag is made of one Polyethylene tubing made in which the wall thickness except on the strip-shaped thick elevations, where it is 0.254 mm, 0.076 mm. There are matching gripping openings near the open end of the bag punched out of the strip-shaped thick elevations.

i ■ t ^ -

.9.098 A6 / 096.2

Claims (12)

KALLE AKTIENGESELLSCHAFT 1919084 Jf Uniere Sign Day Sheet K 1891 A / Gbm HOk A1 FP-Dr.Wa.-jm 14. k. 1969 PATENT CLAIMS 1.) Carrying bag made from a flexible piece of thermoplastic plastic tubing that is closed at one end and has handles or gripping openings at the other end, characterized in that the tube piece has two diametrically opposite, strip-shaped, longitudinally extending, according to has outwardly pointing elevations that are thicker than the rest of the hose wall and with the handles attached to the thick strips or formed entirely from the same or gripping openings in the thick stripes. 2. Carrying bag according to claim 1, characterized! that the handles are made of the same material as the bag and the bag and handles are without Fasteners are firmly connected to each other. 3. Carrying bag according to claim 1, characterized in that ; that the gripping openings consist of one or more slots which are cut through the two strip-shaped elevations at corresponding points on the opening of the pocket. 909846/0962 KALLE AKTIENGESELLSCHAFT 1919084 la Ο · * Our sign day sheet K 1894 A / Gbm 404 A ¹ FP-Dr.Wa.-jm April 14, 1969 4. Carrying bag according to one of claims 1 to 3, characterized in that the strip-shaped Elevations are at least twice as thick as the rest of the hose wall. 5. Carrying bag according to one of claims 1 to 4, characterized in that on both side edges Gussets are formed. 6. Carrying bag according to one of claims 1 to 5, characterized in that it consists of a film made of polyethylene, polypropylene, polyvinyl chloride, polyester, polyamide or a vinylidene chloride copolymer consists. 7. Carrying bag according to one of claims 1 to 6, characterized in that the hose with a pattern and / or a lettering is printed 8. Carrying bag according to claim 7, characterized in that the hose to facilitate the pressing is pretreated. , 9. Process for the production of carrier bags according to claim 1, characterized in that one 9 0 9846/0962 KALLE AKTIENGESELLSCHAFT 1919084 Jf- Our · mark, day BIoB K 189H A / Gbm UOI A ¹ "FP-Dr.Wa.-jm '1M-". 4th 1969 thermoplastic plastic melt through an annular outlet gap with two diametrically opposed Sections that are much wider than the rest of the gap into a tube with two diametrically opposite, strip-shaped elevations formed from the same piece as this extruded, the hose to solidify the thermo- ^ plastic material cools, folds it flat, wherein the longitudinal strip-shaped, thick Elevations are on top of each other, it at pocket-length intervals Seals and cuts in the transverse direction, so that individual pockets with an open and a closed end, and before, during or after the transverse sealing and cutting, carrying handles or Gripping openings at the open end of each pocket in the area of the strip-shaped, thick elevations attaches or forms. ►. ■. ■. 10 ". The method according to claim 9, characterized in that the two diametrically opposite sections the outlet opening are chosen so wide that the strip-shaped, thick elevations at least twice as thick as the rest of the hose wall. 909 8 4 6/0 962 KALLE ACT! E NGESE LL SHAFT 191 9084 T MiJ Our · sign day sheet K 189U A / Gbm UQt A FP-Dr.Wa.-jnt 14. 4. 1969 Jj 11. The method according to any one of claims 9 or 10, characterized in that on the tube edges Gussets are formed when the hose is laid flat. 12. The method according to any one of claims 9 to 11, characterized in that at the open end of the Bag can be cut out of the strips from the same piece as these existing handles. 909846/0962