Bare liner bulk bag
a technology of woven fabric and bulk bags, applied in the direction of paper/cardboard containers, transportation and packaging, sacks, etc., can solve the problems of waste, environmental concerns, problems to the receiving machinery underneath, and tangled and wrinkled inside the woven fabric shell of bulk bags
Inactive Publication Date: 2014-07-24
YUAN DA PLASTIC FABRIC
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- Description
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- Application Information
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Benefits of technology
This patent describes a bare liner bulk bag and a method of making it. The bare liner is supported by a lifting system consisting of vertical, horizontal, and bottom straps that create a space for the liner without a woven fabric shell. The technical effect of this design is a stronger and more durable liner that can be easily moved and positioned without needing additional support. This makes the material handling process more efficient and effective.
Problems solved by technology
However, the woven fabric used to fabricate the bulk bags does not block the transmission of water, moisture, or gases.
The liner inside the woven fabric shell of a bulk bag can become tangled and wrinkled to prevent complete emptying of the content of the bulk bag, which not only causes wastes but also creates environmental concerns.
The liner can drop out completely or partially when discharging the content of the bulk bag, which may cause problems to the receiving machinery underneath.
Since the woven shell is manufactured by sewing together pieces of cut fabric, debris such as cut sewing thread ends and fabric fraying edges can easily get into the bulk bag and contaminate the content of the bulk bag.
In addition, fine powder can leak through the fabric and sewing needle holes and cause waste and environmental pollution.
Method used
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[0022]It will be readily understood that the components of the embodiments as generally described herein and illustrated in the appended figures could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of various embodiments, as represented in the figures, is not intended to limit the scope of the present disclosure, but is merely representative of various embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0023]The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by this detailed description. All changes which come within the meaning and range of...
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Abstract
A bare liner bulk bag and method of making the bare liner bulk bag uses a liner that is supported by a lifting system. The liner is configured to have an interior space to hold material. The lifting system includes at least one vertical strap, at least one horizontal strap and at least one bottom strap, which are connected to each other to define a volume into which the liner can be positioned without a woven fabric shell.
Description
CROSS REFERENCE TO RELATED APPLICATION[0001]This application is entitled to the benefit of U.S. Provisional Patent Application Ser. No. 61 / 756,350, filed on Jan. 24, 2013, which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]Bulk bags are used for the transportation of bulk materials. Bulk bags are usually fabricated by stitching or sewing pieces of woven fabric. The predominant fabric used to fabricate bulk bags is polypropylene woven fabric due to its high strength. However, the woven fabric used to fabricate the bulk bags does not block the transmission of water, moisture, or gases. Thus, for situations where water, moisture, or gases blockage is needed, or to prevent the leakage of fine powder through the fabric or the sewing seams, liners made of plastic films or aluminum foil film need to be inserted inside the woven fabric shell.[0003]There are various concerns regarding conventional bulk bags with liners. The liner inside the woven fabric shell of a bul...
Claims
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IPC IPC(8): B65D30/00
CPCB65D29/00B65D88/1631B65D88/1675B65D88/1681Y10T156/10
Inventor DIAO, QIZHONG
Owner YUAN DA PLASTIC FABRIC