With the rapid development of the national economy, the social demand for viscose fiber is increasing day by day, and the production situation is getting better and better. In order to meet the needs of this excellent situation, the viscose fiber production equipment has been innovated, transformed, tapped and applied. New processes and new technologies have become extremely important. Thus, the choice of filter material used in the production of viscose fibers has become a key outstanding issue.
In the production process of viscose fiber, the filtration effect of viscose directly affects the balance of production, the loss of viscose and the consumption of materials. The quality of the filtration directly affects the quality of the glue. Therefore, the current domestic manufacturers, in addition to the selection of the filter, the choice of filter material has become an important issue. Therefore, the development of JBZ-201 polypropylene filter felt is very timely and urgent.
I. Product Introduction
JBZ-201 filter felt is a new type of filter material made of polypropylene fiber and polypropylene base fabric, which is made by needle punching process. It is called polypropylene filter felt.
As early as in the early 1970s, polypropylene filter felts have already begun to be used in industrial filter products and become one of the important filter materials. However, they are still rare products in China. They are under research and development. The product is a kind of New filter material, it has a good filtering effect. Can be widely used in chemical, oil, water quality and other filters, especially for viscose fiber production in the viscose filtration effect is more prominent, more shows its superiority and vitality. Therefore, it has become more and more widely used by people and all walks of life. Will provide excellent filtration media for industrial filtration. In the development of the national economy will play a role can not be underestimated.
Second, product performance, features and uses
Polypropylene filter felt has stable chemical properties, acid resistance, alkali resistance, and solvent resistance. Physical properties are good, and the felt surface is delicate, firm, resistant to friction, strong in tension, and good in elasticity. With good air permeability, the filter hole is not easy to be blocked, easy to wash, no leakage, reduce pollution. It has the characteristics of good filtration quality, high output, low cost, long service life, simple process, and easy operation. Can be widely used in chemical, oil, water quality filtration, especially for viscose filtration is more important, fully shows: its superiority and vitality. Will play an important role in viscose fiber production filtration technology. Is an ideal filter material.
Third, the formation mechanism:
According to the use requirements and technical indicators proposed by the viscose fiber factory, as well as foreign technical information. The raw material is polypropylene fiber with chemical stability and good physical properties. Polypropylene roving fabric is used as the base fabric, and polypropylene staple fiber is used as the fleece. A certain proportion of the fiber is needled on the base fabric to form a basic cloth inside, and the outside fibers constitute a firm and firm finished felt body. To maintain a reasonable unit weight, with a suitable needle (flocking needle) repeated stabbing reinforcement, increase the binding force between the base fabric and fiber, thereby increasing the tightness of the felt body, maintaining a certain degree of breathability. By heat setting, the fiber fluff on the surface of the felt is fastened together, the density of the object is improved, and the phenomenon of de-lamination from the performance is overcome. In addition, the 601 polymer modified rubber adhesive on the four sides of the polypropylene felt is closed according to the use of specifications, to solve the drawbacks of leakage on the four sides during use. The ideal finished product has achieved satisfactory results and is basically similar to foreign products.
(A) production methods: The new type of acupuncture technology, open the polypropylene fiber short fibers, combing, forming a net, after laying on the base fabric needle felted into felt, after heat setting, fragmentation, edge-sealing finished product - JBZ - 201 filter felt.
(II) Process flow:
Basic weaving Ù inspection quilting edge repair \ Ù needle felt
Fiber Opener Weighing Carding Carding/
Segment ↠Detection ↠Alignment ↠Blank Inspection
Sealing, drying, inspection, packing, storage
(III) Production Procedures:
A. Base weaving: 2.5 to 3. 0×114mm polypropylene crude fiber material, weaving acid, alkali, corrosion resistance; large pull force, good elasticity; no scarce road, no holes, no breakage, weft and other defects of the base cloth.
B. Acupuncture felting: Polypropylene staple fibers are carded into a web and fed in layers. The mesh layer is kept uniform in thickness to avoid folding ripples or holes and piles. The distance of high-speed acupuncture combined with the corresponding number of punctures results in a felt that has a high density, a thin thickness, a good stiffness, and a reasonable air permeability.
C, heat setting: through the stereotypes machine, that is, there are steam roller round ironing machine, outside the arc-shaped far-infrared heater composition. The styling treatment is carried out to make the surface of the felt tight and tight inside, and to overcome the problems of hair removal and layer formation, it is not allowed to produce shortcomings such as dramatic shrinkage, inflection, and coking.
D, Edge: Select 601 polymer adhesive, the four sides of the finished product will be closed according to specifications. Prevent leakage of polypropylene felt during use.
Fourth, the main technical indicators and process recipes
A, raw materials and specifications
Polypropylene fiber: 1.5 ~ 2D × 38 mm
1.5 to 2D×54 mm
Bã€Kib
Length: ≥4200cm
Amplitude: ≥ 1280 mm
Fabric organization: 1/1 four layers plain weave
Warp and weft density: 18×16/inch
Unit weight: 250±25g/M
C. Acupuncture
Acupuncture depth: 16~18 mm
Acupuncture procedure: Shop 1 thorn 1. Shop 5 empty thorns 1. Empty stab is 2×2
Reverse 2×2
Positive 1×1
Fiber ratio: 66~68% (total)
Blanket weight: 750±25g/M
D, heat setting:
Felt shows uniform fiber adhesion, no hair removal, layering phenomenon, without affecting the air permeability under the appropriate circumstances to increase the setting temperature, but not to produce shrinkage, deformation, and coking and other defects.
E, finished product
Felt: 43000 × 1100 mm mm
Broken pieces: 1055×1030mm
Thickness: 3.25~3.75mm
Unit weight: 775±25g/M
Rally: Longitudinal>180kg/5cm×20cm
Latitude >140kg/5cm×20cm
Elongation at break: warp <55%
Latitude <85%
With the rapid development of the national economy, the social demand for viscose fiber is increasing day by day, and the production situation is getting better and better. In order to meet the needs of this excellent situation, the viscose fiber production equipment has been innovated, transformed, tapped and applied. New processes and new technologies have become extremely important. Thus, the choice of filter material used in the production of viscose fibers has become a key outstanding issue.
In the production process of viscose fiber, the filtration effect of viscose directly affects the balance of production, the loss of viscose and the consumption of materials. The quality of the filtration directly affects the quality of the glue. Therefore, the current domestic manufacturers, in addition to the selection of the filter, the choice of filter material has become an important issue. Therefore, the development of JBZ-201 polypropylene filter felt is very timely and urgent.
I. Product Introduction
JBZ-201 filter felt is a new type of filter material made of polypropylene fiber and polypropylene base fabric, which is made by needle punching process. It is called polypropylene filter felt.
As early as in the early 1970s, polypropylene filter felts have already begun to be used in industrial filter products and become one of the important filter materials. However, they are still rare products in China. They are under research and development. The product is a kind of New filter material, it has a good filtering effect. Can be widely used in chemical, oil, water quality and other filters, especially for viscose fiber production in the viscose filtration effect is more prominent, more shows its superiority and vitality. Therefore, it has become more and more widely used by people and all walks of life. Will provide excellent filtration media for industrial filtration. In the development of the national economy will play a role can not be underestimated.
Second, product performance, features and uses
Polypropylene filter felt has stable chemical properties, acid resistance, alkali resistance, and solvent resistance. Physical properties are good, and the felt surface is delicate, firm, resistant to friction, strong in tension, and good in elasticity. With good air permeability, the filter hole is not easy to be blocked, easy to wash, no leakage, reduce pollution. It has the characteristics of good filtration quality, high output, low cost, long service life, simple process, and easy operation. Can be widely used in chemical, oil, water quality filtration, especially for viscose filtration is more important, fully shows: its superiority and vitality. Will play an important role in viscose fiber production filtration technology. Is an ideal filter material.
Third, the formation mechanism:
According to the use requirements and technical indicators proposed by the viscose fiber factory, as well as foreign technical information. The raw material is polypropylene fiber with chemical stability and good physical properties. Polypropylene roving fabric is used as the base fabric, and polypropylene staple fiber is used as the fleece. A certain proportion of the fiber is needled on the base fabric to form a basic cloth inside, and the outside fibers constitute a firm and firm finished felt body. To maintain a reasonable unit weight, with a suitable needle (flocking needle) repeated stabbing reinforcement, increase the binding force between the base fabric and fiber, thereby increasing the tightness of the felt body, maintaining a certain degree of breathability. By heat setting, the fiber fluff on the surface of the felt is fastened together, the density of the object is improved, and the phenomenon of de-lamination from the performance is overcome. In addition, the 601 polymer modified rubber adhesive on the four sides of the polypropylene felt is closed according to the use of specifications, to solve the drawbacks of leakage on the four sides during use. The ideal finished product has achieved satisfactory results and is basically similar to foreign products.
(A) production methods: The new type of acupuncture technology, open the polypropylene fiber short fibers, combing, forming a net, after laying on the base fabric needle felted into felt, after heat setting, fragmentation, edge-sealing finished product - JBZ - 201 filter felt.
(II) Process flow:
Basic weaving Ù inspection quilting edge repair \ Ù needle felt
Fiber Opener Weighing Carding Carding/
Segment ↠Detection ↠Alignment ↠Blank Inspection
Sealing, drying, inspection, packing, storage
(III) Production Procedures:
A. Base weaving: 2.5 to 3. 0×114mm polypropylene crude fiber material, weaving acid, alkali, corrosion resistance; large pull force, good elasticity; no scarce road, no holes, no breakage, weft and other defects of the base cloth.
B. Acupuncture felting: Polypropylene staple fiber is carded into a net and fed in layers. The mesh layer is kept uniform in thickness, avoiding the phenomenon of folding ripples or holes and piles. The distance of high-speed acupuncture combined with the corresponding number of punctures results in a felt that has a high density, a thin thickness, a good stiffness, and a reasonable air permeability.
C, heat setting: through the stereotypes machine, that is, there are steam roller round ironing machine, outside the arc-shaped far-infrared heater composition. The styling treatment is carried out to make the surface of the felt tight and tight inside, and to overcome the problems of hair removal and layer formation, it is not allowed to produce shortcomings such as dramatic shrinkage, inflection, and coking.
D, Edge: Select 601 polymer adhesive, the four sides of the finished product will be closed according to specifications. Prevent leakage of polypropylene felt during use.
Fourth, the main technical indicators and process recipes
A, raw materials and specifications
Polypropylene fiber: 1.5 ~ 2D × 38 mm
1.5 to 2D×54 mm
Bã€Kib
Length: ≥4200cm
Amplitude: ≥ 1280 mm
Fabric organization: 1/1 four layers plain weave
Warp and weft density: 18×16/inch
Unit weight: 250±25g/M
C. Acupuncture
Acupuncture depth: 16~18 mm
Acupuncture procedure: Shop 1 thorn 1. Shop 5 empty thorns 1. Empty thorns are 2×2
Reverse 2×2
Positive 1×1
Fiber ratio: 66~68% (total)
Blanket weight: 750±25g/M
D, heat setting:
Felt shows uniform fiber adhesion, no hair removal, layering phenomenon, without affecting the air permeability under the appropriate circumstances to increase the setting temperature, but not to produce shrinkage, deformation, and coking and other defects.
E, finished product
Felt: 43000 × 1100 mm mm
Broken pieces: 1055×1030mm
Thickness: 3.25~3.75mm
Unit weight: 775±25g/M
Rally: Longitudinal>180kg/5cm×20cm
Latitude >140kg/5cm×20cm
Elongation at break: warp <55%
Latitude <85%
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