Non-woven material "tejpal"

 

The invention relates to the textile industry, namely the nonwovens obtained from chemical fibers, bonded hypoproteinemia, and can be used, particularly in road construction. The invention provides for the creation of durable non-woven material that can withstand significant tensile load with a simple manufacturing techniques. Material for road construction, consisting of interconnected hypoproteinemia fibrous layers containing polyester fiber, contains polyester fibres and with a linear density of 0.33-0.44 Tex, cutting length not less 65-90 mm not less than 50% by weight of the material. 1 C.p. f-crystals, 1 table.

The invention relates to the textile industry, namely the nonwovens obtained from chemical fibers, bonded hypoproteinemia, and can be used as heat and sound insulation, foundations for bitumen coating for road construction and other

Known non-woven needle-punched material [Yu memorial plaques and other Mechanical technology production of nonwoven materials. Moscow, Light industry, 1973 S. 18, 35], including glass and mineral fibers, in cachebusting canvas in addition, the presence of non-woven asbestos cloth - carcinogen entails the violation of safe working conditions and exploitation.

Also known multilayer nonwoven material [and.with. The USSR 988924, class D 04 H 1/04 1983], containing two layers haloprogin paintings from natural, chemical fibers or mixtures thereof, sewn filaments knitted weave, between which there is at least one layer of fibrous cloth made of natural fibers or mixtures thereof, bonded hypoproteinemia with one of the layers holstering cloth constituting 20-12 wt.h. from the mass of non-woven material. The content of the tufting yarns haloprogin the canvas is 30-49 wt.h. by weight of the blade, and the content of fibers in haloprogin paintings and fibrous canvas is 6-21 wt.h. from the mass of material.

The material is durable, but its disadvantage is the complexity of the technology.

The objective of the invention is the creation of durable non-woven material that can withstand significant tensile load with a simple manufacturing techniques.

The problem is solved when using non-woven material "Tejpal", consisting of Richie from the prototype contains polyester fibres and with a linear density of 0.33-0.44 Tex, cutting length not less 65-90 mm not less than 50% by weight of the material, bonded hypoproteinemia. Pets in the manufacture material to add waste of man-made fiber, yarn, thread, and mixed waste.

The proposed parameters of raw materials - polyester fibers help to improve communication fibers together in the manufacturing process and, ultimately, to obtain a sufficiently dense and elastic material, perceiving a significant tensile loads.

To further increase the cutting length polyester fibers and increase their thickness will result in the loss of material elasticity, and in operation shock - absorbing properties. In addition, the long fibers can be laid in the manufacturing process of zigzag, which does not allow full use of their strength properties.

Smaller cutting length can lead to the formation of short fibers under the influence of the breaking loads, i.e., to reduce the strength of the material. Reducing the thickness of the fibers also reduces the strength of the material.

The proposed material is prepared as follows. From the source of raw material - polyester fiber linear density of 0.33-0.44 Tex cutting length of 65-90 mm form a fibrous layer: the rotational speed of the roller - 1202 min-1speed removable cushion - 42010 min-1; Then Rossiyane and oiling of the mixture: the speed of the supply grille - 80.5 m/min; the speed of the main drum 20010 min-1speed of the working rollers 15 min-1speed removable cushions - 20 min-1speed varicella - 74010 min-1; composition of a sizing emulsion: OS-20 - 4%, water - 96%; the amount of the emulsion by weight of the fibrous mixture is 12%.

Next, perform the following operations: mixing: the speed of the horizontal conveyor - 0,09 m/min; frequency of rotation of the drive shaft needle lattice - 122 min-1; frequency of rotation of the shaft leaving a comb - 705 min-1; maturing: the speed of the horizontal conveyor - 0,09 m/min; speed reverse horizontal lattice - 2.5 m/min; speed needle lattice - 120 m/min; time aging of the mixture to 12 h; itching mixture sloves; weight throw - 256 g; the speed of the inclined lattice - 9.0 m/min; the coefficient of variation by mass to 2.5%; the frequency of rotation of the main drum 35 min-1; frequency of rotation of the working roller - 4-10 min-1 is Alika - 110 min-1(1 products); the frequency of rotation of the removable drum - 115 min-1speed of the working rolls is 10-15 min-1speed removable cushions - 3505 min-1speed of adbegone - 450 min-1speed removable drum - 12 m/min; linear velocity of the discharge conveyor 70 m/min; number of plies of the web - 10.

The final step is the formation of materials in the form of severe leaf carried out using machine needle: working width of 1.8 m, the frequency of perforation is 1.7 and 8.3 Hz (min-1) (100-500); length of stroke of the needle table 65 mm; feed puncture - 1,8-15 mm; maximum projection density of the needle - 400 m-1; density perforation - 100 m-2104.

Characterization of the obtained material are given in the table.

Some recommendations for laying cloth "Tejpal" in road construction under bituminous coating: - needle-punched fabric "Tejpal" should be laid across the longitudinal axis of the embankment, it is necessary to lay a single strip with splices; - overlap of the individual bands and lateral release of the embankment Foundation shall be not less than 50 cm, with uneven nigeriaworld; feeds can be connected with a wire staple, if you are applying canvas "Tejpal" width up to two tapes, it may be placed along the embankment.

Claims

1. Non-woven material for road construction, consisting of interconnected hypoproteinemia fibrous layers containing polyester fiber, characterized in that the material contains polyester fibres and with a linear density of 0.33-0.44 Tex, cutting length not less 65-90 mm not less than 50% by weight of the material.

2. Non-woven material under item 1, characterized in that it contains a waste of man-made fiber, yarn, thread, and mixed wastes while reducing the content of polyester fibers in an amount of not less than 50% by weight of the material.

 

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