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Filter cloth using polypropylene fiber silk as raw material and production method thereof

A technology of polypropylene yarn and filter cloth, which is applied in the field of filter cloth and its production, which can solve the problems of inapplicability to large-scale plate and frame filter presses, short service life, and low filtration accuracy, and achieve high strength, long service life, and high filtration accuracy. high effect

Inactive Publication Date: 2008-12-31
上海火炬产业用纺织品有限公司
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  • Description
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Problems solved by technology

[0003] At present, due to material problems, the commonly used filter cloth has low strength, short service life, low filtration accuracy, and is not easy to unload the cake, such as the monofilament filter cloth disclosed in Chinese patent application number: 99112597.5 and the disclosed one in 02138567.x The filter cloth used for titanium dioxide filtration makes it unsuitable for large plate and frame filter presses with large filtration areas

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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  • Filter cloth using polypropylene fiber silk as raw material and production method thereof
  • Filter cloth using polypropylene fiber silk as raw material and production method thereof

Examples

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Effect test

Embodiment 1

[0016] The width is 139cm, and its production steps are:

[0017] ①Materials: 500dtex polypropylene yarn is used as the warp material, and 1100dtex polypropylene yarn is used as the weft yarn material;

[0018] ② Use 500dtex polypropylene yarn as the warp raw material to make warp beams on the section warping machine;

[0019] ③Use the warp beam and 1100dtex polypropylene yarn as the weft yarn on a wide-width rapier loom, and weave it in a dobby-opening manner to obtain a double-layer variable structure, such as figure 1 as shown, figure 1 Among them, × indicates that the warp line floats above the latitude line, which is called the warp tissue point. The single-layer warp density is 338 threads / 10cm, and the weft density is 100 threads / 10cm;

[0020] ④ The gray cloth off the machine is inspected and repaired, and then hot-rolled and shaped by a calender. The shaping temperature is 140 ° C, the shaping speed is 15-16 m / min, the hot-rolling pressure is 3000 N, and the front ...

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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Abstract

The invention provides a piece of filter cloth taking polypropylene yarn as the raw material and a production method thereof, and is characterized in that the filter cloth is made by adopting the polypropylene yarn with the denier of 500-550dtex along the warp direction and the polypropylene yarn with the denier of 1050-1100dtex along the zonal direction as the raw material. The filter cloth has the characteristics of high filtering precision and strength, long service life, smooth cloth cover and easy unloading, and the like, thus being mainly applied in a plate and frame filter press of the industries such as chemical engineering and medicine, etc.

Description

technical field [0001] The invention relates to a filter cloth and a production method thereof. Background technique [0002] With the rapid development of the national economy, large plate and frame filter presses are widely used in chemical, pharmaceutical and other industries. Due to the large filtration area, high filtration efficiency and wide application fields of large plate and frame filter presses, the filter materials used are proposed It meets higher requirements than ordinary woven filter materials. It requires high strength, long service life, high filtration precision, and easy unloading of cakes to achieve high efficiency. [0003] At present, due to material problems, the commonly used filter cloth has low strength, short service life, low filtration accuracy, and is not easy to unload the cake, such as the monofilament filter cloth disclosed in Chinese patent application number: 99112597.5 and the disclosed one in 02138567.x The filter cloth used for titani...

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): B01D39/08
Inventor 陈志华杨敏李纪文
Owner 上海火炬产业用纺织品有限公司
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