GB2043861A - A Method for Drying a Textile Fabric to Provide a Bulky Finish - Google Patents
A Method for Drying a Textile Fabric to Provide a Bulky Finish Download PDFInfo
- Publication number
- GB2043861A GB2043861A GB8004980A GB8004980A GB2043861A GB 2043861 A GB2043861 A GB 2043861A GB 8004980 A GB8004980 A GB 8004980A GB 8004980 A GB8004980 A GB 8004980A GB 2043861 A GB2043861 A GB 2043861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fabric
- drying
- textile fabric
- dried
- textile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 92
- 238000001035 drying Methods 0.000 title claims abstract description 59
- 239000004753 textile Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010009 beating Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 229920000742 Cotton Polymers 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000005406 washing Methods 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
- F26B13/103—Supporting materials without tension, e.g. on or between foraminous belts with mechanical supporting means, e.g. belts, rollers, and fluid impingement arrangement having a displacing effect on the materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B20/00—Combinations of machines or apparatus covered by two or more of groups F26B9/00 - F26B19/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A textile fabric (5) is dried to produce a bulky finish in two stages. In the first stage e.g. drying cylinders (2), the textile fabric (5), containing water due to a certain liquid treatment, is dried to remove capillary water contained among the fabric yarns. The resulting half-dried textile fabric is then subjected to drying in the second stage under a non-tension, relaxed state by applying crumpling and beating forces repeatedly thereto, by means of air blowers (4) arranged in zig zag fashion to both sides of the fabric (5), whilst it passes through the gap between a pair of endless net conveyors (3). <IMAGE>
Description
SPECIFICATION
A Method for Drying a Textile Fabric to Provide a Bulky Finish
The present invention relates to a method for drying textile fabrics, such as woven and knitted goods, as part of a finishing process so as to retain the bulkiness of the textile fabric sufficiently after drying.
When a textile fabric has been subjected to a certain industrial treatment, such as a pretreatment or a dyeing treatment, followed by washing, it is then necessary to subject the thus treated textile fabric to a drying treatment as a finishing step. Drying treatment of a textile fabric has conventionally been applied by transporting a textile fabric by pressing it on a hot cylinder to dry the fabric by the heat conductance due to the contact with the hot cylinder. However the problem arises that the textile fabric, after drying, is poor in its bulkiness because the shrinkability of the fabric is hindered due to the contact of the fabric with the surface of the hot cylinder. Another method is to apply heat to the textile fabric whilst it is transported by hanging in zigzag fashion from a plurality of guide rolls.However, in this case, since the fabric is transported under tension, the fabric is unable to shrink sufficiently so that the fabric after drying is poor in its bulkiness.
It is an object of this invention to provide a method for drying a textile fabric after a liquid treatment such that the fabric retains suitable bulkiness in the course of its drying.
The present invention takes into account the following considerations. When a textile fabric to be dried contains a large amount of water, i.e. a large amount of capillary water is retained among the yarns constituting the fabric, the water prevents the shrinking force of the fibres constituting the yarns, so that an effective shrinkability of the fabric cannot be expected.
Further, if tension is applied to a textile fabric in the course of drying, the shrinking force of the fibres is prevented and consequently the fabric cannot naturally retain a sufficient bulkiness.
According to a first aspect of the present invention there is provided a method of drying a textile fabric to provide a bulky finish, comprising subjecting a textile fabric containing water due to a certain liquid treatment to preliminary drying to remove capillary water contained among the fabric yarns, and then subjecting the resultant half dried textile fabric to drying under a non-tension, relaxed state by applying crumpling and beating forces repeatedly thereto.
The preferable range of the water content of the textile fabric after the first step is, for example, approximately from 35 to 40 parts per 100 parts of the dried fabric by weight for a cotton fabric and approximately from 25 to 35 parts per 100 parts of the dried fabric by weight for a fabric composed of the mixed yarns of cotton and polyester.
From a further aspect, the present invention provides apparatus for drying a textile fabric to provide a bulky finish comprising first and second drying regions, wherein heating means within the first drying region is adapted to remove capillary water from washed fabric whilst the second region incorporates drying means for subjecting the fabric continuously to crumpling and beating forces and drying without applying tension forces along the length of the fabric.
Preferably, in such apparatus the drying means will comprise an array of blowers for blowing hot air onto the fabric and arranged in zigzag fashion to both sides of the fabric path defined by a gap between a pair of endless net conveyors.
The invention may be performed in various ways and preferred embodiments thereof will now be described with reference to the accompanying drawings, in which: Figure 1 illustrates one form of drying apparatus according to the invention;
Figure 2 is an enlarged detail of part of Figure 1;and Figure 3 illustrates another form of drying apparatus according to the invention.
The apparatus shown in the drawings incorporates a drying chamber 1, drying cylinders 2, a pair of net conveyors 3 and 3', and air nozzles 4. A textile fabric 5 to be dried is passed through the apparatus.
Example 1
In Figure 1, the drying chamber 1 is provided with a plurality of drying cylinders 2 in the upper part thereof. The lower part of the drying chamber
1 incorporates the pair of endless net conveyors 3 and 3' lying horizontally one above the other in parallel to form a gap a therebetween. A plurality of air nozzles 4 are provided along the outer sides of the two net conveyors 3 and 3' in zigzag fashion to blow hot air into the gap a between the two conveyors. Figure 2 illustrates in more detail the means for blowing hot air into the gap between the two conveyors in Figure 1.
The method for drying a textile fabric by using a drying apparatus as above mentioned may be carried out as follows. The textile fabric 5, which contains a large amount of water, after having been subjected to a certain liquid treatment and washing, is introduced into the drying chamber 1 and guided by rotating the drying cylinders 2 at a uniform rate to transport the fabric through the drying chamber. The textile fabric containing water is dried gradually in the course of transportation whilst the fabric is in contact with the successive drying cylinders 2. The temperature of the drying cylinders and the rate of transfer of the fabric are controlled so as to achieve sufficient removal of the capillary water contained among the fabric yarns during this transportation.Examples of the preferable content of water to be left in the textile fabric at the end of this step are about 38 parts per 100 parts of the dried fabric by weight for a 100% cotton broadcloth and about 27 parts per 100 parts of the fabric by weight for a broad-cloth composed of the mixed yarns of 65% polyester and 35% cotton.
After preliminary drying the textile fabric is guided through the gap a between the two endless net conveyors 3 and 3' in the drying chamber 1 and transferred successively therethrough by rotating the two net conveyors at a uniform rate, whilst blowing dried hot air continuously onto the fabric by means of the air nozzles 4 to apply crumpling and beating forces to the fabric and to cause the fabric to adopt a zig zag form. Due to the crumpling and beating forces applied repeatedly to the half-dried textile fabric, the fibres of the fabric exhibit a shrinking force effectively, and since the fabric is dried from the half-dried state, the fabric is set sufficiently in a shrinkable state. Consequently, the fabric after drying has high bulkiness.
Thus the textile fabric containing water after a liquid treatment is half-dried in the first step to remove the capillary water contained among the fabric yarns, and is then in a state wherein the shrinkage of the fabric fibres may more readily be achieved. Then, in the second step, the half-dried textile fabric is dried sufficiently under a nontension, relaxed state by applying crumpling and beating forces repeatedly thereto with the use of air pressure jets to increase the bulkiness of the fabric. Thus, the textile fabric is finished with an excellent bulkiness.
Incidentally, whilst drying cylinders are used as a drying means in the first step of this example, the drying means is not limited thereto, and such means as infra-red rays and electric heating may be applied instead.
Example 2
In another example of the apparatus, as shown in Figure 3, the drying chamber 1 is divided into two parts, the former being provided with a plurality of drying cylinders 2 and the latter being closed to incorporate a pair of endless net conveyors 3 and 3'. In this apparatus too, the drying of a textile fabric with an excellent bulky finish can be achieved in the same manner as in example 1. The details of the process need not therefore be detailed in this example.
Claims (9)
1. A method of drying a textile fabric to provide a bulky finish, comprising subjecting a textile fabric containing water due to a certain liquid treatment to preliminary drying to remove capillary water contained among the fabric yarns, and then subjecting the resultant half-dried textile fabric to drying under a non-tension, relaxed state by applying crumpling and beating forces repeatedly thereto.
2. A method according to claim 1, wherein the water content of the textile fabric after the preliminary drying is approximately in the range from 35 to 40 parts per 100 parts of the dried fabric by weight for a cotton fabric.
3. A method according to claim 1, wherein the water content of the textile fabric after the preliminary drying is approximately in the range from 25 to 35 parts per 100 parts of the dried fabric for a fabric composed of mixed yarns of cotton and polyester.
4. A method according to any one of claims 1 to 3, wherein the means for applying crumpling and beating forces to the half-dried textile fabric comprises blowing hot air from an array of blowers arranged in zig zag fashion to both sides of the fabric whilst it passes through the gap between a pair of endless net conveyors.
5. A method of drying textile fabric to provide a bulky finish substantially as herein described with reference to the accompanying drawings.
6. Apparatus for drying a textile fabric to provide a bulky finish comprising first and second drying regions, wherein heating means within the first drying region is adapted to remove capillary water from washed fabric whilst the second region incorporates drying means for subjecting the fabric continuously to crumpling and beating forces and drying without applying tension forces along the length of the fabric.
7. Apparatus according to claim 6, wherein the drying means comprises an array of blowers for blowing hot air onto the fabric and arranged in zig zag fashion to both sides of the fabric path defined by a gap between a pair of endless net conveyors.
8. Apparatus according to claim 6 or claim 7, wherein the heating means comprises a series of drying cylinders over which the fabric will pass, or an infra-red ray or electric heater.
9. Apparatus for drying a textile fabric substantially as herein described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1659079A JPS606469B2 (en) | 1979-02-15 | 1979-02-15 | How to dry bulky fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2043861A true GB2043861A (en) | 1980-10-08 |
Family
ID=11920485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8004980A Withdrawn GB2043861A (en) | 1979-02-15 | 1980-02-14 | A Method for Drying a Textile Fabric to Provide a Bulky Finish |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS606469B2 (en) |
| DE (1) | DE3005353A1 (en) |
| GB (1) | GB2043861A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2384295B (en) * | 2001-12-12 | 2006-07-12 | Falmer Investment Ltd | Improvements in and relating to Processing fabric |
| CN109267275A (en) * | 2018-09-30 | 2019-01-25 | 上海隆锦化工有限公司 | A kind of continuous zero-emission pad-dry-cure dyeing unit of the dual-purpose loose formula no-station pole canopy of needle tatting |
| CN109612245A (en) * | 2018-12-11 | 2019-04-12 | 卢超标 | Conveyor Textile Dryer |
| EP3699346A1 (en) * | 2019-02-21 | 2020-08-26 | Il Sung Machinery Co., Ltd. | Tumbler apparatus for textile fabric |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464274U (en) * | 1990-10-16 | 1992-06-02 |
-
1979
- 1979-02-15 JP JP1659079A patent/JPS606469B2/en not_active Expired
-
1980
- 1980-02-13 DE DE19803005353 patent/DE3005353A1/en not_active Withdrawn
- 1980-02-14 GB GB8004980A patent/GB2043861A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2384295B (en) * | 2001-12-12 | 2006-07-12 | Falmer Investment Ltd | Improvements in and relating to Processing fabric |
| CN109267275A (en) * | 2018-09-30 | 2019-01-25 | 上海隆锦化工有限公司 | A kind of continuous zero-emission pad-dry-cure dyeing unit of the dual-purpose loose formula no-station pole canopy of needle tatting |
| CN109612245A (en) * | 2018-12-11 | 2019-04-12 | 卢超标 | Conveyor Textile Dryer |
| EP3699346A1 (en) * | 2019-02-21 | 2020-08-26 | Il Sung Machinery Co., Ltd. | Tumbler apparatus for textile fabric |
| CN111593521A (en) * | 2019-02-21 | 2020-08-28 | 日星机械工业株式会社 | Drying device for fiber fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55112367A (en) | 1980-08-29 |
| JPS606469B2 (en) | 1985-02-18 |
| DE3005353A1 (en) | 1980-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |