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Wiper and method of manufacturing the wiper

A technology of cellulose and water flow, applied in chemical instruments and methods, cleaning methods and utensils, cleaning methods using tools, etc., can solve the problem of increased dissolution of acetone, loss of fibrous tiny foreign matter that does not meet the requirements of dissolution, water absorption, etc. low water absorption, etc., to achieve the effect of low amount of acetone leached matter

Inactive Publication Date: 2005-09-07
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Synthetic fibers inherently have little water absorption, so when synthetic fibers are used as materials, they are treated with a hydrophilic agent (surfactant) or treated with a hydrophilic treatment. However, when these treatments are performed, the amount of acetone eluted increase
[0013] Conventionally, attempts have been made to mix cellulose components into the constituent materials of nonwoven wipers in order to increase water absorption. However, when pulp fibers are used as the cellulose component, the generation of the aforementioned fibrous microscopic foreign matter increases. , as can be seen from Table 1, the water absorption of the existing flat non-woven cloth wiper is 4-6ml / g, and most of them are less than 8ml / g
[0014] As mentioned above, until now, there has not been a flat nonwoven cloth wiper that satisfies all the performances of the shedding amount of fibrous minute foreign matter, the amount of leached matter in acetone, and the amount of water absorption.

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2、 comparative example 1 and 2

[0068] As shown in Table 2, the continuous cellulose long-fiber non-woven fiber web obtained by continuous coagulation and regeneration from the cuprammonium fiber solution by the wet method was continuously coagulated and regenerated by using the jet water with various changes in the total impact energy value (F). Perform interleaving.

[0069] In the interweaving process, a 40-mesh plain weave is used to support the non-woven fabric below the non-woven fabric, and an 18-mesh plain weave with an opening ratio of 25% is covered on the non-woven fabric as a buffer plate, which is fixed on the non-woven fabric. At a distance of 10 mm from the upper side of the woven web, interlacing was performed from above it using a water jet. After drying, the nonwoven fiber web was cut into a square of 22.8 cm square to make a flat nonwoven wiper.

[0070] The results are shown in Table 2. Judging from Table 2 as follows.

[0071] J of Comparative Example 1 is a weak cloth with almost no ...

Embodiment 3～5、 comparative example 3

[0075] As shown in Table 3, two non-woven fiber webs of continuous cellulose long fibers obtained by continuous coagulation and regeneration of continuous cellulose fibers obtained by wet method are prepared, and the middle layer is used in the middle layer of No. 8-2578503 The method described in the gazette clamps a predetermined amount of rayon staple fibers or polyester staple fibers to make a composite non-woven fiber web.

[0076] The composite non-woven fiber web was interlaced as shown in Table 3 using water jets with various changes in the total impact energy value (F). In the interweaving process, a 70-mesh flat-woven net is supported under the non-woven fiber web, and an 18-mesh flat-woven net with an opening ratio of 25% is covered on the non-woven fiber web as a buffer board, and placed on the non-woven fabric. A distance of 20 mm above the fiber web. The buffer plate moves in the same direction as the fiber web at a speed of 1 / 10 of the web speed, and the interw...

Embodiment 6 and 7、 comparative example 4 and 5

[0081] Using various buffer plates shown in Table 4, using a full impact energy value (F) of 2.7×10 9 [Joule·Newton / kg] jet water is used to interweave the non-woven fiber web of continuous cellulose long fibers obtained by continuous coagulation and regeneration from the copper-dissolved ammonium cellulose solution by a wet method. In addition, a buffer plate was fixed at a distance of 10 mm above the nonwoven web. After drying, the nonwoven fiber web was cut into a square of 22.8 cm square to make a flat nonwoven wiper.

[0082] The results are shown in Table 4. Judging from Table 4 as follows.

[0083] S of Comparative Example 4 is a weak cloth with almost no intertwining of fibers, and it is difficult to maintain the form of cloth, so it is not suitable for use as a wiper.

[0084] T and U of Examples 6 and 7 are wipers with excellent performance.

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Abstract

A sheet-like wiper of a nonwoven fabric formed by entangling fibers with each other by a high-pressure water jet stream, wherein an amount of micro-matter of 100 mu m long or more falling-off therefrom is 20,000 pieces / m<2> or less, an amount of material dissolved therefrom into acetone is 340 mg / kg or less, and the water absorption is 8 ml / g or more.

Description

technical field [0001] The present invention relates to an industrial wiper suitable for use in places requiring high cleanliness, such as clean rooms in electronic product manufacturing and pharmaceutical manufacturing, and a method for manufacturing the same. Background technique [0002] Wipes made of non-woven materials are widely used as inexpensive disposable wipes in the household, medical and industrial fields, each field requiring different functions. For example, in the household field, as a substitute for dishcloths or dishcloths, strength and volume (volume feel) are valued. Moreover, when it is used as a wiper for a bed sweeper etc. at home, the adsorption performance with respect to dust (gomi) is important. In the medical field, as a substitute for cotton gauze, it is strongly required to reduce the amount of heavy metals or fluorescent compounds that are harmful to the human body. [0003] On the other hand, in the industrial field, disposable non-woven clo...

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): B08B1/00D04H3/013D04H3/11D04H13/00
CPCD04H5/02D04H13/005B08B1/00D04H3/102D04H3/11D04H3/011Y10T29/49801Y10T428/24124B08B1/006D04H3/013A47L13/16
Inventor 小室雄一弓削修治
Owner ASAHI KASEI KK