Method and equipment for conditioning and heat-setting textile articles

A processing method and technology for textiles, applied in textiles and papermaking, equipment configuration for processing textile materials, heating/cooling fabrics, etc., can solve the problems of diluting steam, increasing the number of continuous processing cycles, entering, etc., to achieve low-cost, fast cycle , the effect of uniform humidity distribution

Inactive Publication Date: 2004-09-01
莱奥波尔多.波齐机械建造股份公司
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  • Description
  • Claims
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Problems solved by technology

[0031] However, such a method has some admitted disadvantages, mainly that after each steam cycle, air from the outside is fed into the autoclave and re-enters the interior of the material to be treated
[0032] It is clear that the air fraction entering the material will dilute the vapor input into the material and also create the same conditions on each subsequent cycle, resulting in an inefficient increase in the number of successive process cycles

Method used

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  • Method and equipment for conditioning and heat-setting textile articles
  • Method and equipment for conditioning and heat-setting textile articles
  • Method and equipment for conditioning and heat-setting textile articles

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Embodiment Construction

[0048] The treatment method of the present invention will be described in conjunction with the temperature-pressure diagrams respectively shown in FIGS. 3 and 4 and the equipment for realizing the method is generally indicated by 20 in FIGS. 5 and 6, which includes: an autoclave 21; a water recovery tank 22 ; Vacuum pump 23 .

[0049] The method and apparatus of the present invention will be further described below when used to treat yarn; however the same method and apparatus can also be used for the treatment of yarn and other textiles.

[0050] As regards the processing method, it consists in feeding the conical bobbins or bobbins of yarn to be processed into the autoclave 21, which are arranged on suitable support fixtures so that the steam circulates freely in the conical bobbins or bobbins .

[0051] Preferably, but not necessarily, the thermal cycle is two and is denoted C1 and C2 in Figures 3 and 4, where it can be seen that each cycle includes a negative pressure pha...

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Abstract

A method of conditioning and heat-setting textile products in an autoclave (21) is disclosed comprising: two or more thermal cycles (C1, C2), at least one of which comprising a transfer phase (16) of water present in the autoclave (21) to inside a recovery tank (22), a suction phase (10, 12) to put the autoclave (21) under vacuum, a water return phase (14, 15) from the recovery tank (22) to the autoclave (21), a heating phase (11, 13) of water contained in the autoclave (21) to generate saturated steam, a stay phase (35, 36) in the autoclave (21) for a predetermined time (tc, tp) of the reached conditions of temperature (t11, t13) and pressure (p11, p13), restoring in the autoclave (21) the ambient pressure (Pa) at the end of the last stay phases (36). Each phase of transfer (16) and return (14, 15) of said water occurs spontaneously by suction produced by the difference of pressure existing between autoclave (21) and recovery tank (22).

Description

technical field [0001] The present invention relates to a treatment method for moisture conditioning and heat setting of textiles, especially yarns made of natural fibers such as wool or cotton or natural and synthetic fibres. The invention also relates to an apparatus for carrying out the conditioning and heat setting methods. Background technique [0002] It is well known that yarn wound on a tapered bobbin or bobbin must be subjected to absorbing a predetermined amount of moisture before being used on a loom or circular knitting machine. [0003] In fact, having the right percentage of moisture in the yarn will stabilize its twist and avoid breakage when working on a loom or knitting machine. [0004] Moreover, the correct range of yarn stability can also increase the working speed of the machine. [0005] In particular, in synthetic hybrid yarns, treatment at high temperature of the yarns can be carried out, and synthetic fibers can also be heat-set. [0006] Yarn tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B17/04D06B23/20
CPCD06B23/20D06B17/04
Inventor A·波滋
Owner 莱奥波尔多.波齐机械建造股份公司
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