Non-woven fabric for filter, and process for production thereof

A manufacturing method, non-woven technology, applied in membrane filters, chemical instruments and methods, separation methods, etc., can solve problems such as pressure loss, inability to exert adsorption capacity, and difficulty in covering the surface of fibers thinly

Inactive Publication Date: 2012-10-03
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this method has the following problems: when manufacturing a filter that removes various harmful / toxic substances, it is not only necessary to select and use various kinds of adsorbents, but also because the adsorbents are buried in the binder due to the use of the binder, As a result, sufficient adsorption capacity cannot be exerted; and there is also the following problem: when using a conventional adhesive, it is difficult to cover the surface of the fiber thinly, resulting in a large pressure loss in many cases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Non-woven fabric for filter, and process for production thereof
  • Non-woven fabric for filter, and process for production thereof
  • Non-woven fabric for filter, and process for production thereof

Examples

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Embodiment

[0100] Hereinafter, although an Example etc. demonstrate this invention in more detail, this invention is not limited to these. In addition, the measurement method of each characteristic value in an Example is shown below. In addition, in the following examples etc., "normal temperature" means "15-25 degreeC", and "%" means "% by weight" unless otherwise specified. The peptide concentration was calculated by converting the amount of nitrogen into the amount of protein after measuring the amount of nitrogen by the Kjeldahl method.

manufacture example 1）

[0102] (Manufacturing example 1) Production of nonwoven fabric covered with aluminum-crosslinked collagen insoluble matter

[0103] 30 g of aqueous hydrogen peroxide solution diluted to 30% by weight was added to 1200 kg of leather pieces (collagen content: 180 kg) obtained by solubilizing with alkali using cow split hide as a raw material, and then dissolved in aqueous lactic acid solution to prepare pH 3.5, solid content 7.5% stock solution. Under reduced pressure, the stock solution was subjected to stirring and defoaming treatment using a stirring defoaming machine (manufactured by Dalton Co., Ltd., 8DMV type), moved to a piston type spinning stock solution tank, and then left to stand under reduced pressure for defoaming, as the following Collagen solution for nonwoven treatment.

[0104]Synthetic fiber non-woven fabric AL035J11-GN-H (manufactured by Jinxing Paper Co., Ltd., with a mass per unit area of ​​35 g / m) of 5 cm × 12 cm 2 ) was immersed in 300 ml of collagen aq...

manufacture example 2）

[0106] (Manufacture example 2) Production of nonwoven fabric covered with aluminum-crosslinked collagen insoluble matter

[0107] In addition to the pulp mixed fiber nonwoven fabric AL040TCEP-WE (manufactured by Jinxing Paper Co., Ltd., with a mass per unit area of ​​40 g / m 2 ) except that the collagen concentration in Production Example 1 was adjusted to 0.06% and 0.12% of the aqueous collagen solution, a nonwoven fabric covered with collagen insolubles was obtained in the same manner as in Production Example 1.

[0108] Next, the coverage degree of the collagen of the nonwoven fabric was calculated as the weight increase rate of the nonwoven fabric by immersion in aqueous collagen solution and aluminum crosslinking treatment. As a comparison, an aluminum-crosslinked product of a nonwoven fabric that was not dipped in a collagen aqueous solution was produced, and its weight increase was measured. The results are shown in Table 1.

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Abstract

Disclosed are: a non-woven fabric for a multi-functional filter, which has excellent adsorption performance on various toxic / hazardous substances such as malodorous substances, VOCs, allergens and pathogenic viruses, has an anti-bacterial / anti-fungal activity, and rarely undergoes pressure loss; and a method for producing the non-woven fabric in a simple manner. Specifically disclosed are: a non-woven fabric for a filter, which comprises an insolubilized metal-crosslinked polypeptide and a non-woven fabric coated with the polypeptide and has excellent adsorption performance, and which can be produced by such a simple process that the non-woven fabric is immersed in an aqueous polypeptide solution and further treated with a metal salt; and a process for producing the filter in a simple manner.

Description

technical field [0001] The present invention relates to the function of simultaneously adsorbing various harmful / poisonous substances such as malodorous substances, VOC, allergens (allergens), viruses, etc., and having antibacterial and mildew resistance, and further having basic characteristics as a filter. An important nonwoven fabric for a filter with the performance of suppressing pressure loss as much as possible, and its manufacturing method. Background technique [0002] The applications of filters include dust prevention, filtration, and air purification applications. Among them, the market for air purification applications such as air purifiers and filters for air conditioners including automotive air conditioners has expanded in recent years. The target substances of these filters mainly include malodorous substances such as ammonia and isovaleric acid, toxic substances such as VOCs such as formaldehyde, and allergens derived from mites that cause atopic reactions ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08D06M15/15D04H1/407
CPCD06M11/45D06M11/46B01D39/1615B01D2239/0442B01D2239/0471D04H1/407B01D2239/064D06M15/15B01D39/1623D06M11/48B01D2239/045D06M11/47D04H1/64A61L9/01B01D39/16
Inventor 山下宪司矢口茂村田照一
Owner KANEKA CORP
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