Non-woven material

 

(57) Abstract:

The invention relates to the textile industry, namely the nonwovens produced from synthetic fibers, and can be used in the transport industry, in particular in the automotive industry for the top layer of ceiling, trunk lid, gaskets, door, etc. Nonwoven material contains a fibrous layers, the United stitch-bonding method, which consists of, by weight. %: viscose fiber linear density of 0.44 Tex, cutting length of about 90 mm 50%; Mylar fiber linear density of 0.33 Tex, cutting length 60-66 mm 50%. The invention provides for increasing the strength of the material and the simplification of its manufacturing technology.

The invention relates to the textile industry, namely the nonwovens produced from synthetic fibers, can be used in the transport industry, in particular in the automotive industry for the top layer of ceiling, trunk lid, gaskets, door, etc.

Known non-woven needle-punched material [Perepelkina memorial plaques and other Mechanical technology production of nonwoven materials. - M: Light industry, 1973, S. 35], including glass and mineral Volonte obtain asbestos cloth, additionally, the presence of non-woven asbestos cloth - carcinogen - entails the violation of safe working conditions and exploitation.

Known nonwoven fibrous material [AC USSR 1520908, 1987], containing a mixture of sealed hypoproteinemia fibrous thread-mass recovered from sewing scraps of cotton fabrics in the amount of 50-60% by weight of the material and the PVC shrinkable fibers in the amount of 20-30% by weight of the material. Nonwoven fibrous material further comprises a polyester fiber in the amount of 20-30%.

The disadvantage of the material is its low strength, not allowing the use of the material in the discontinuous loads.

Also known multilayer nonwoven material [AC USSR 988924, 1983], which contains 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 threads in the canvas the canvas 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 to increase the strength of non-woven material, as well as simplifying its manufacturing technology.

The problem is solved in that the nonwoven material contains interconnected stitch-bonding method of the fibrous layers comprising, in wt. %: viscose fiber linear density of 0.44 Tex, cutting length of about 90 mm - 50%; Mylar fiber linear density of 0.33 Tex, cutting length 60 - 66 mm - 50%.

The proposed parameters of the fibers can improve the connection of the fibers with each other in the manufacturing process and, ultimately, to obtain a sufficiently dense and elastic material.

Further increase in the length of cut fibers and increase their linear density 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 and to reduce the strength of the material. Ameneshewa as follows. Raw material - viscose fiber linear density of 0.44 Tex, cutting length 90 mm - 50%; Mylar fiber linear density of 0.33 Tex, cutting length 66 mm - 50% mixed by hand to form the fibrous layer:

The rotational speed of the platen horizontal grid, min-1- 1,50,5

The rotational speed of the roller is inclined lattice, min-1- 1202

Speed removable cushion, min-1- 42010

Then Rossiyane and oiling mix:

The speed of the supply grid, m/min - 8,01

The rotational speed of the main drum, min-1- 20010

The rotational speed of the working rolls, min-1- 15

Speed removable cushions, min-1- 20

The rotational speed of the vane, min-1- 74010

The amount of the emulsion by weight of a fibrous mixture, % - 14

As lubricant drug use OS-20 or sintepon and stearic - 6. Preparing a solution of the emulsion (6% OS-20 or 3% of sintepon, 3% stearica - 6) by dissolving the components in hot water (50-70oC) under stirring in the tank with a mechanical stirrer for 15 minutes a Composition of a sizing emulsion: OS-20 60,06 kg or sintepon 3,00,06 kg; water 94,0 L.

Next, perform the following operations:

- maturing

speed needle lattice, m/min - 120

time, aging the mixture, h 12-24

- itching mixture

- Samois

weight throw, g - 235

the speed of the inclined lattice, m/min 9,0

the coefficient of variation by weight, % - 2,5 - Preprocess

the rotational speed of the main drum, min-1- 35

rotation frequency, min-1:

working rollers - 72

removable cushions - 5

distillation of the roller - 110 - 1 webs

speed removable drum, min-1- 115

the rotational speed of the working rolls, min-1- 330

speed removable cushions, min-1- 10

rotation speed of the main line of the platen, min-1- 7 - 2 webs

the rotational speed of the main drum, min-1- 12

rotation frequency, min-1:

the working roller - 385

removable cushion - 5-11

adbegone - 450

runner - 690

Pedagogika - 695

removable drum - 10

castilnovo roller - 21

The final operation forming material in the form of severe leaf carried out using stitch-bonding machines:

stitch length, mm - 1,2

removable gear stitch length - Zcm=36; Z1=40; Z2=60; Z3=30

the rotational speed of the main draw layers, characterized in that the fibrous layers are connected by stitch-bonding method and consist of, in wt.%: the viscose fiber linear density of 0.44 Tex, cutting length of about 90 mm 50%; Mylar fiber linear density of 0.33 Tex, cutting length 60-66 mm 50%.

 

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