ES1180408U - Bag bag with double handle for packing cement, mineral products, fertilizers, chemical powder or food (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Double handle sack bag for packing cement, mineral products, fertilizers, chemical powders or food characterized in that it consists of a polypropylene band in the form of a double handle on the sides of the bag, sewn and reinforced at the end of the bag before protruding outside the bag to form two handles, which continues all around the circumference of the bag, articulated interwoven with the rest of the polypropylene bands to form a bag-shaped armor. In another form, the double handles are held sewn or thermally sealed on an interwoven polypropylene mesh in the form of a bag sack, this layer of mesh in between an internal layer of kraft paper and another outer layer of kraft paper printed or laminated sack shape. (Machine-translation by Google Translate, not legally binding)

Description

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Going to pack cement, mineral products, fertilizers, powdered chemicals or food consists of a double handle of a polypropylene band on the sides of the bag to facilitate its transport, which is sewn and reinforced at its end before protruding even out of the bag to form two loop loops, and continues as a band all around the bag, articulating interwoven with the rest of the polypropylene bands to form a bag-shaped armor. The double handles may be held sewn or thermally sealed on a woven bag-shaped polypropylene mesh, this mesh layer located between the middle of an inner layer of kraft paper and another outer layer of printed kraft paper or bag-shaped laminate .

Currently, the sacks of construction materials such as cement are built by several layers of kraft paper, and usually also carry a thin polyethylene film between the layers of kraft paper that serves as water and grease repellent, and to give it resistance to decomposition by bacteria and insects. The moisture barrier in the bags is also achieved to a lesser extent by the outer lamination of kraft paper with printed polyethylene. The cement bag carries the sealed ends with what is called a valve in a corner, whose function is to allow them to be easily filled, since it is only necessary that the valve flaps are glued together or closed with adhesive tape once that the bag has been filled by the valve. Kraft paper is used in cement bags because it is more robust than paper. It is manufactured by extracting most of the lignin from cellulose pulp by adding chemicals that provides resistance. Subsequently, cellulose pulp is pressed into reels to give it the characteristic porosity and elasticity of kraft paper.

However, even in spite of the resistance of the kraft paper with its multiple layers and its fine polyethylene film, the sacks of cement or with construction materials as they have to pack from 25 kg to 50 kg in weight, they are easily tear breaking in transport, resulting in large losses to stores and distributors. There are large woven polypropylene bags that are used as container bags with four handles sewn on the sides to be able to lift and mechanically load them onto a truck; and also, there are smaller polypropylene bags on the market that store cement, sand and other construction materials that carry an inner layer of kraft paper with the outer layer of woven polypropylene. Bags for storing dog food or other foods such as flour or smaller sugar are generally made of non-woven polyethylene sealed with heat moisture and laminate; Some polyethylene bags carry a sealed handle at the top at one end to transport them.

The utility model of the bag with a double handle has two handles sewn and reinforced in different lateral positions held by an armor of polypropylene bands forming a sack or mesh of woven polypropylene, which allows the bag to be transported comfortably without harming health of the operator in transport. The inner kraft paper layer absorbs moisture and maintains, for example the cement, in the optimum dry state, and the outer kraft paper layer can be printed with the necessary information

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of the product and the company logo, and may be laminated to resist moisture. To take the actual bags of cement without tearing the kraft paper, it is necessary to take the bag at both ends without handles, being very careful that it does not slip and with great effort in a position where it is necessary to bend the back, with serious damage to the spine vertebral, causing herniated discs, wear of the spinal discs, in the joints such as facets, knees, and hip, degenerating over time in osteoarthritis. It is very common for the banks to suffer serious back problems from being loaded with cement bags without handles. In some European countries, early retirement over 50 years has been legalized for construction workers; and also, it has been prohibited to manufacture and sell sacks of cement of more than 25 kg to prevent possible damage to health and the spine. The double handles on the sides of the utility model allow the bags to be easily transported by two operators at the same time or can be mechanically lifted and loaded with a crane on a truck as well as raised to the floor of a building under construction with a pulley or crane.

The gaps between the fibers of the mesh layer may be fused together without gaps or with gaps from one mm to several cm providing great resistance to the double-loop sack bag to tear. These bands of suspenders of 1, 2 cm or more in width serve as armor of the sack bag for the support of the handle as can be seen in Figures 1,2,3 and 4. The band of the two polypropylene handles continues all along the whole of the bag throughout its circumference, sewing at its ends to give greater strength to the handles when transporting the bags sacks. In this way, by lifting the bag by the handle with a crane, the force is transmitted by distributing everything along the bag throughout the armor without tearing the bag or leaving the contents as usual in cement bags. This provides greater strength and robustness to be able to lift and transport several bags bags at the same time. The sack bag may have four handles in the corners (Figure 7) or two handles in the corner of one end sewn to the polypropylene band. As shown in Figure 6, you can have the two handles at the two corners at one end with one end open and the other bottom sealed by sewing or thermal sealing. The double handle bag sack, although it can be manufactured in any dimension, will preferably have the dimensions of: width 420600; length 350 - 800 mm; leaf length of the valve 100-250mm; valve blade width 120-170 mm.

To facilitate its opening, being less tear than the bags of current multilayer valve kraft paper, the bag may carry a filling valve in one corner. This bag bag with valve is sealed both ends thermally first, it is filled by the valve, and then the valve is closed with heat or glued with adhesive tape. Between the layers of kraft paper you can wear an insulating layer in the form of a polyethylene film. The sack bags with the end of the bottom sewn or thermally sealed, without valve, are filled first by the open end, then closed by sewing, glued with hem or glued with adhesive tape. The handles do not interfere with the opening and emptying by the opening end of the sack bag. In another embodiment, the bands of the reinforcement or the mesh may be constituted by interwoven or unwoven polyethylene manufactured by extrusion and rolled in coils or by biaxially oriented polypropylene. These double handle sack bags may have a tear-off opening of the printed laminated polyethylene layer. The double handle sack bag may consist of a single inner layer of kraft paper and another outer layer of

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laminated and printed interwoven polypropylene with double handles or having a single layer of interwoven or unwoven polyethylene. In another embodiment, the double handle sack bag is constituted by a mesh of interwoven polypropylene with double handle or interwoven or unwoven polyethylene with double handle without the outer and inner layers of kraft paper.

Figure 1 shows the double handle (1) on each side of the sack bag with the polypropylene bands forming a bag-shaped armor (2). In Figure 2, the two handles are placed at each end longitudinally to the bag and are extended by the bands of the armor (4), sewn the handles at their ends to reinforce them (3). In Figure 3, the two handles (5) located on the two sides are shown longitudinally. In Figure 4 the two handles are located on the two sides transversely held by the polypropylene band of the reinforcement (6). In Figure 5, the two shorter handles are placed at each end of the sack bag supported by the woven polypropylene mesh (7). Figure 6 shows the thickest mesh inner layer of woven polypropylene with an open end and two handles at each corner at one end to transport the double handle bag. In Figure 7, a sack bag with 4 handles sewn on the 4 corners sewn or thermally sealed to the woven polypropylene mesh layer is shown.

Claims (3)

5 10 fifteen twenty 25 30 35 Application No. Effective  01/16/2017 1. Bag with double handle for packing cement, mineral products, fertilizers, chemical powders or food, characterized in that it consists of a polypropylene band in the shape of a double handle on the sides of the bag, sewn and reinforced at the end of the bag before protruding pair out of the bag to form two handles, which continues all around the circumference of the bag, articulating interwoven with the rest of the polypropylene bands to form a bag-shaped armor. In another embodiment, the double handles are held sewn or thermally sealed on a polypropylene mesh interwoven in the form of a sack bag, this mesh layer located between the middle of an inner layer of kraft paper and another outer layer of kraft paper printed or laminated in bag shape. 2. Bag with double handle for packing cement, mineral products, fertilizers, chemical powders or food according to previous claim because the double handles are located in the middle on both sides of the widest side of the bag from one corner to another of the bag ( Figure 3), or they are shorter forming a loop loop about 10 cm long in the middle of the sack bag (Figure 4). In another embodiment, the handles are located at both ends where it is sewn or thermally sealed and the bag is filled, going from one corner to another (Figure 1), or shorter in the middle making a loop of about 10 cm long (Figure 2). In another embodiment, the handles go over the four corners of the sack bag sewn or thermally sealed to the interwoven polypropylene mesh layer (Figure 7) or at both corners of one end of the sack bag (Figure 6). 3. Bag with double handle for packing cement, mineral products, fertilizers, chemical powders or food according to previous claims because the bands or mesh may be constituted by biaxially oriented polypropylene, or interwoven or unwoven polyethylene manufactured by extrusion and laminated in reels, and because between the layers of kraft paper you can wear an insulating layer in the form of a polyethylene film. The bag with a double handle may have a valve seal at one end of the opening, have a plastic zip closure to open and close the bag successively when removing its contents, and a tear opening of the layer of printed laminated polyethylene. The double handle sack bag may consist of a single inner layer of kraft paper and another outer layer of interwoven polypropylene laminated and printed with the double handles. In another embodiment, the double handle sack bag is constituted by a mesh of interwoven polypropylene with double handle or interwoven or unwoven polyethylene with double handle according to the preceding claims without the inner and outer layers of kraft paper. F.OEPM 01/16/2017