GB2063929A - Producing white synthetic yarn - Google Patents
Producing white synthetic yarn Download PDFInfo
- Publication number
- GB2063929A GB2063929A GB8034466A GB8034466A GB2063929A GB 2063929 A GB2063929 A GB 2063929A GB 8034466 A GB8034466 A GB 8034466A GB 8034466 A GB8034466 A GB 8034466A GB 2063929 A GB2063929 A GB 2063929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yarn
- resin
- synthetic
- yarns
- opacifying agent
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007844 bleaching agent Substances 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 229920000728 polyester Polymers 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 4
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 3
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 3
- 239000000839 emulsion Substances 0.000 claims description 10
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 4
- 239000011118 polyvinyl acetate Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 abstract description 2
- 238000009941 weaving Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005470 impregnation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Woven Fabrics (AREA)
- Artificial Filaments (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
To produce synthetic yarn having a high covering power and a high degree of whiteness, a synthetic yarn (1) such as polyester yarn is impregnated, in a device (2), with a solution containing an opacifying agent, an optical bleach and a resin. The yarn is then heated by passing it through an oven (4) in order to crosslink the resin. Finally, complete drying of the yarn is carried out. The process may also be applied to other synthetic yarns, e.g. acrylic resins or pva. The preferred opacifying agent is titanium dioxide. A crosslinkable vinyl resin provides a suitable resinous ingredient.
Description
SPECIFICATION
Treatment of synthetic yarn
This invention relates to a method for the treatment of synthetic yarn, in particular polyester yarn, to produce yarn having a high covering power and a high degree of whiteness.
Certain special textile products require the use of yarns having a very high covering power and a high degree of whiteness. Such yarns are required, for example, for the manufacture of labels for clothing and made-up articles in general. These labels usually contain trade-marks in the form of designs or fancy representations, in addition to details regarding the manufacture or the name of the article. These written parts and designs are produced by weaving, using coloured yarns on the white background of the label. Whereas the coloured yarns appear in negative form on the rear of the label, the design and/or writing on the white background must appear sharply defined on the front, without any darkish transparency. In order to properly mask all of the coloured yarn without transparency, white yarn of high covering power and a high degree of whiteness must be used.
Yarns satisfying these requirements are generally produced by means of an opacifying operation either during the polymerisation stage or on the molten mass before extruding the yarn.
In addition to the opacifying agent, which is usually titanium dioxide, an optical bleach is also added, this being a substance which in small quantities gives the yarn a brilliant whiteness.
However, as the consumption of yarns of this type is relatively low, their production must necessarily be intermittent and in small batches. Also, the yarn so produced is not suitable for mass use.
Consequently, this production method is particularly burdensome and costly.
According to the present invention, there is provided a method for the treatment of synthetic yarn, which comprises impregnating the yarn with a solution or emulsion containing an opacifying agent, an optical bleach and a resin, and then heating and drying the yarn.
The method of the invention is suitable for producing yarns having the required characteristics, even in very limited quantities, and is suitable for producing only such quantities as are needed for weaving the articles as and when required. This method has the advantage that it can be applied to the production of yarn in small quantities. It is therefore suitable for small processors or for small production runs. The method has the further advantage that it can be used directly by the weaver for producing yarn as and when necessary for his weaving, starting from normal texturised yarn.
The method according to the present invention comprises a chemical and physical treatment designed to increase the covering power of the yarn while at the same time increasing its degree of whiteness and the brilliance of the whiteness itself, and making it suitable for weaving in a weaving machine.
In particular, the method of the present
invention is applicable to texturised polyester
yarns having a count which varies between 78
and 110 dtex, with 36-48 filaments.
The method of the present invention may
comprise impregnating the yarn with a solution
containing the opacifying agent, an optical bleach and a resin able to cross-link at a certain temperature without becoming yellow, then
passing the yarn impregnated in this manner through an oven in order to cross-link the resin and completely dry the yarn. The temperature and length of the oven may be such as to allow crosslinking and drying of the resin at a rate such as to ensure economical industrial production. The temperature can conveniently be from 1 50 to 1 900C, and the yarn speed can be at least
100 m/minute.
For a better understanding of the invention, reference will now be made, by way of example, to the single Figure of the accompanying drawing, which Figure shows one way in which the method of the invention can be carried out.
The Figure shows a support 2 and a winding of starting yarn (untreated), and an impregnating device 2 constituted by a tank containing the impregnating solution and including a system for its uniform distribution over the yarn. A circulation and formation system for the bath, including a recirculation pump, is provided. The Figure also shows a yarn feed roller system 3, an oven 4 for polymerising the yarn-impregnating resin and through which the yarn passes after impregnation, a yarn collection roller system 5 and a collection member 6 for the treated yarn.
The impregnation bath contains an aqueous emulsion containing titanium dioxide, possibly already emulsified with a resin, in a quantity of from 20 to 35%, a cross-linkable vinyl resin emulsion, which resin contains from 1 9 to 20% of solid and is present in a quantity of from 50 to 65% of the bath, and an optical bleach in a quantity of from about 0.6 to 0.2%.
Yarn treatment tests have been carried out using texturised polyester yarns having a count of 85 to 105 dtex at 45 and 40 filaments respectively, the tests being carried out by use of the above apparatus. For the 105 dtex yarns, the impregnation bath consisted of 25% of titanium dioxide dispersed in an acrylic resin, in the form of an emulsion having a 50% solids content (Acramin
White DR, made by Ciba), 55% of a polyvinyl acetate emulsion (Bevaloid 83 TS), and 0.3% of a stilbenic optical bleach (liquid Blancophor ERM, made by FAF). For the yarns of 85 dtex and 45 filaments, there was used an emulsion containing the aforesaid ingredients in the following proportions: titanium dioxide 30%, polyvinyl acetate emulsion 60%, optical bleach 0.4%.
The yarns thus treated, after drying, were used for weaving tests and for tests on labels having a high writing density. Weaving was simple, and gave rise to no powder formation due to losses of opacifying or binding agent. In addition, the labels prepared in this manner had on their front side the same appearance as labels prepared from special super-opaque yarns, i.e. polyester yarn for labels (131.7 twist at 36 filaments) containing 1.65% of titanium dioxide. Even after five washes with water and soap, the labels still had the same appearance on their front side, without any transparency.
The same results were obtained by using an acrylic resin emulsion instead of the polyvinyl acetate emulsion.
Claims (9)
1. A method for the treatment of synthetic yarn, which comprises impregnating the yarn with a solution or emulsion containing an opacifying agent, an optical bleach and a resin, and then heating and drying the yarn.
2. A method according to claim 1, wherein the heating is carried out in an oven at a temperature of from 150 to 1900C.
3. A method according to claim 2, wherein the yarn is passed through the oven at a speed of at least 100 m/minute.
4. A method according to claims 1, 2 or 3, wherein the yarn is polyester yarn.
5. A method according to any of claims 1 to 4, wherein the opacifying agent is titanium dioxide.
6. A method according to any of claims 1 to 5, wherein the resin is a crosslinkable vinyl resin.
7. A method according to claim 6, wherein the resin is an acrylic resin or polyvinyl acetate.
8. A method according to claim 1, substantially as hereinbefore described with reference to the accompanying drawing.
9. Synthetic yarn which has been treated by a method according to any of claims 1 to 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT27057/79A IT1165360B (en) | 1979-11-06 | 1979-11-06 | METHOD FOR THE PRODUCTION OF HIGH COVERING POLYESTER YARN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2063929A true GB2063929A (en) | 1981-06-10 |
| GB2063929B GB2063929B (en) | 1983-12-21 |
Family
ID=11220862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8034466A Expired GB2063929B (en) | 1979-11-06 | 1980-10-27 | Producing white synthetic yarn |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE3041592A1 (en) |
| FR (1) | FR2468669A1 (en) |
| GB (1) | GB2063929B (en) |
| IT (1) | IT1165360B (en) |
| NL (1) | NL8006073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066687A (en) * | 1994-06-24 | 2000-05-23 | Solutia Inc. | Acrylic fiber with high optical brightness |
| CN113227485A (en) * | 2018-12-28 | 2021-08-06 | 尚科纺织企业工业及贸易公司 | Method for producing a textile product and textile product obtained thereby |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1251532A (en) * | 1960-02-20 | 1961-01-20 | Bayer Ag | Process for dyeing and printing textile materials with the combined use of titanium dioxide |
| US3382086A (en) * | 1964-09-03 | 1968-05-07 | Klopman Mills Inc | Finishing textile fabric |
| DE1619088C3 (en) * | 1967-09-15 | 1978-09-07 | Hoffmann's Staerkefabriken Ag, 4902 Bad Salzuflen | Prevention of graying and graying of woven and knitted fabrics made from man-made fibers |
| FR1593299A (en) * | 1968-11-21 | 1970-05-25 | ||
| US3674548A (en) * | 1969-04-09 | 1972-07-04 | Deering Milliken Res Corp | Process for imparting soil-releasing and anti soil-redeposition properties to textile materials |
| DE2018792A1 (en) * | 1970-04-20 | 1971-11-04 | Regenerating white textile colour |
-
1979
- 1979-11-06 IT IT27057/79A patent/IT1165360B/en active
-
1980
- 1980-10-27 GB GB8034466A patent/GB2063929B/en not_active Expired
- 1980-11-04 FR FR8023544A patent/FR2468669A1/en active Granted
- 1980-11-04 DE DE19803041592 patent/DE3041592A1/en not_active Withdrawn
- 1980-11-06 NL NL8006073A patent/NL8006073A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066687A (en) * | 1994-06-24 | 2000-05-23 | Solutia Inc. | Acrylic fiber with high optical brightness |
| CN113227485A (en) * | 2018-12-28 | 2021-08-06 | 尚科纺织企业工业及贸易公司 | Method for producing a textile product and textile product obtained thereby |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1165360B (en) | 1987-04-22 |
| NL8006073A (en) | 1981-06-01 |
| FR2468669B1 (en) | 1984-05-11 |
| FR2468669A1 (en) | 1981-05-08 |
| DE3041592A1 (en) | 1981-05-07 |
| IT7927057A0 (en) | 1979-11-06 |
| GB2063929B (en) | 1983-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3166886A (en) | Process for working up stretched aromatic polyester filaments | |
| US3140957A (en) | Heat treatment of fibers | |
| JPS5516985A (en) | Dyeing and printing of cellulosic fiber base material | |
| GB2063929A (en) | Producing white synthetic yarn | |
| GB1041020A (en) | Dyeing and or printing of cellulose acetate | |
| US3894135A (en) | Process for stretching a cable of polyester threads | |
| JPS58197365A (en) | Simultaneous sizing and draft method of thermoplastic continuous yarn comprising substantially parallel filament and use thereof in producing fabric | |
| US2221232A (en) | Production of crepelike textile webs | |
| US4680034A (en) | High contrast patterning process and product for disperse dyed polyester | |
| US3253875A (en) | Dyeing with anionic dyes of nylon skeins partially metal foil covered during moist heat treatment before dyeing | |
| CA1144309A (en) | Continuous method for bleaching with peroxide | |
| US3533145A (en) | Process and apparatus for the treatment of synthetic filament groups | |
| GB1514504A (en) | Method of making a woven fabric for permanent press garments and fabrics and garments made thereby | |
| GB1273889A (en) | Process for printing textile materials of synthetic organic fibres | |
| US2121040A (en) | Production of textile materials | |
| CH614339B (en) | PROCESS FOR THE MANUFACTURING OF EQUIPPED TEXTILES FABRICATED WITH INDIGO WASHINGLY DYED. | |
| KR900001923B1 (en) | Process for dyeing of silk fabric and silk fabric dyed from above process | |
| US3117052A (en) | Multi-colored glass fiber fabrics | |
| GB2152855A (en) | Continuously applying a liquor to elongate material | |
| GB898398A (en) | A method of distinguishing textile materials of differing qualities | |
| GB1265493A (en) | Process and apparatus for texturising endless yarn | |
| DE3361015D1 (en) | Process for the manufacture of thermostable fibres and yarns | |
| KR920005900B1 (en) | Pigment coating process for even fade-out effect on fabrics | |
| NZ207630A (en) | Patterning the surface of thermoplastic textile materials by enhancing dye extractability | |
| US3477806A (en) | Treatment of cellulose triacetate with selected compounds to introduce stretch properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |