Method and machine for treating textile materials by ammonia or other liquids

Inactive Publication Date: 2005-08-11
BIANCALANI SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0033] 2) it is unnecessary to add liquid ammonia to the process, with the consequent elimination

Problems solved by technology

There are very few machines in the world that use this technology, due to the difficulties linked to the use of liquid ammonia, which at atmospheric pressure evaporates at −33° C. This makes the machines complicated to construct and causes p

Method used

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  • Method and machine for treating textile materials by ammonia or other liquids
  • Method and machine for treating textile materials by ammonia or other liquids
  • Method and machine for treating textile materials by ammonia or other liquids

Examples

Experimental program
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Example

[0038] In the diagram in FIG. 1 the machine, indicated as a whole with 1, is of the continuous type and has an inlet 3 and an outlet 5 for the textile article, which in this example of embodiment is a fabric indicated with T. However, the treatment may also be performed on a yarn or on another type of textile article the fibers of which must undergo mercerization using ammonia. Means, of a per se known type (not shown), may be associated with the inlet 3 and the outlet 5, to prevent the gases present inside the machine from escaping.

[0039] Schematically the machine is provided with a first condensation or impregnation chamber, that is for the actual treatment, indicated with 7, communicating with a second drying chamber 9. The path of the fabric T to be treated extends and travels through the two chambers.

[0040] Two rollers 11, 13 are disposed in the impregnation chamber 7 and rotate in opposite directions according to the arrows in the drawing. The rollers may be motorized to fac...

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Abstract

The machine comprises: a path for the textile article (T); along the path impregnation means (11, 13) to impregnate the textile article with said product; means (23, 25) to remove the product from said textile article. The impregnation means may comprise one or more cooled rollers (11, 13) on which the product condenses and around which the textile article to be treated is driven.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for treating textile materials by ammonia, in particular bolts of fabric or yarns. This type of method is commonly known as mercerization. More generally, the invention relates to a method for treating textile articles or materials by liquids at low condensation temperature. [0002] The invention also relates to a machine for treating textile materials. STATE OF THE ART [0003] Mercerization is a typical treatment for fabrics and yarns made of all cellulosic fibers, particular for cotton, which allows the material to be given a series of advantages, such as: [0004] increase in luster and hydrophilicity, [0005] increased dimensional stability, [0006] increased yield of the dye, [0007] an improvement and intensification of subsequent finishing treatments (i.e. anti-crease treatments). [0008] Currently, the mercerization process is performed with the use of alkalies, generally caustic soda, which determines: [0009] shrinkag...

Claims

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Application Information

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IPC IPC(8): D06B7/00D06M10/00D06M11/59
CPCD06M11/59D06B7/00D06B1/00D06B23/028D06C7/00
Inventor BIANCALANI, MASSIMORAVAGLI, RICCARDO
Owner BIANCALANI SRL
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