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Vacuum-cleaner filter bag made from recycled plastic

A technology for vacuum cleaners and recycling plastics, which is applied in the direction of suction filters, filtration separation, membrane filters, etc., and can solve the problems of high cost of filter structures and not being accepted by final consumers.

Inactive Publication Date: 2018-11-23
EUROLIFTERS HLDG NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there is still room for improvement in these characteristics, it has been noted that the high cost of complex filter structures is becoming less and less acceptable to end consumers

Method used

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  • Vacuum-cleaner filter bag made from recycled plastic
  • Vacuum-cleaner filter bag made from recycled plastic
  • Vacuum-cleaner filter bag made from recycled plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102]

[0103] The air-permeable material of the vacuum cleaner filter bag according to Example 1 has a four-layer structure, wherein the outermost layer (clean air side) has a basis weight of 25 g / m 2 support layer. The innermost layer also has a basis weight of 17g / m 2 support layer. Between the two support layers, two fine filter layers (virgin polypropylene meltblown nonwovens, each charged by corona discharge) are placed, each with a basis weight of 15 g / m 2 . The corresponding support layer consists of 100% recycled PET. The third column gives the absolute weight of the layers in the vacuum cleaner filter bag. The vacuum cleaner filter bag has a fixing plate weighing 5.0 g that is welded to the vacuum cleaner filter bag.

[0104] With this structure, it is possible to achieve a recycled material content of 41.3% for the vacuum cleaner filter bag as a whole.

Embodiment 2

[0106]

[0107] The vacuum cleaner filter bag according to Example 2 had the same structure as the vacuum cleaner filter bag according to Example 1, except that the fixing plate consisted of 100% recycled polyethylene terephthalate (rPET). By this measure, the overall recycled content of the vacuum cleaner filter bag can be increased to 70.5%.

Embodiment 3

[0109]

[0110]

[0111] The vacuum cleaner filter bag according to Embodiment 3 has the same structure as in Embodiment 2. In contrast to Example 2 or Example 1, the fine filter layer (inner meltblown nonwoven layer) in this case also consists of 100% recycled PET. The rPET used can be metallized or non-metallized. If non-metallized rPET is used, the meltblown nonwoven can also be electrostatically charged, for example by corona discharge.

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Abstract

The invention related to a vacuum-cleaner filter bag which is primarily made from plastic recyclates.

Description

technical field [0001] The present invention relates to vacuum cleaner filter bags consisting essentially of plastic recyclate. Background technique [0002] Due to their very good performance characteristics, filter bags made of nonwovens have almost completely replaced paper filter bags in the past 10 years. More specifically, their dust collection efficiency, clogging tendency and mechanical strength have been continuously improved. Typically, the nonwovens used for this purpose consist of thermoplastic resins, in particular polypropylene (PP) and / or polyester (PET). [0003] Although there is still room for improvement in these characteristics, it has been observed that the high cost of complex filter structures is becoming less and less acceptable to end consumers. [0004] Furthermore, the use of high-quality and heavy-weight nonwovens for disposable products has come under increasing criticism for ecological reasons. [0005] Because filter bags are usually dispose...

Claims

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Application Information

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IPC IPC(8): A47L9/14B01D39/16
CPCB01D39/16D04H1/5412D04H1/542D04H1/43828D01F8/14D01F8/06B01D39/163B01D2239/0283A47L9/14B01D2239/1233B01D2239/0435B01D2239/0225B01D2239/0233B01D2239/065
Inventor 扬·舒尔廷克拉尔夫·绍尔
Owner EUROLIFTERS HLDG NV