Polyester Cationic Dyed Yarns

Polyester Cationic Dyed Yarns

Polyester Cationic Dyed Yarn is produced from CDP chip that consists of dimethyl isophthalate with polar radical SO3Na.The dye-absorption property of fiber is greatly improved. It is thus easy to be dyed with improved dye-absorption rate and moisture-absorption property. Cationic Dyed Yarns have features like light and water color fastness, vivid color and luster, good deep dyeing property, high dye-absorption rate, good stability in high temperature dyeing solutions and high stability of dyes when the PH value changes in dyeing bath.

The special properties of a cationic dyed polyester yarn are –

•      Cost effective dyeing procedure using intensive cationic dyes and low dyeing temperatures from 98⁰ to 120⁰C
•      Excellent bath exhaustion
•      High dyeing speed
•     Cationic yarns can also be colored using disperse dyes up to 120⁰C
•     Ideal mixing element for wool or elasthane fibres (Lycra) that cannot be dyed at high temperatures
•     Offers good combination possibilities with other fibers – mixing element for dual-tone and multi-color effects
•     Shows high luminosity when using cationic dyes
•     Excellent resistance to wet and sublimation
•     Low pilling
•     Problem-free recycling with normal polyester

Polyester Cationic Dyed Yarns have certain advantages over other dye yarns. They are as follows-   

·         high dyeing power leads to low dyeing costs

·         shades are obtained rapidly and so shorter dyeing times

·         complete dyeing setting means no subsequent reductive cleaning

·         no soiling of Lycra leads to excellent resistance to wet and sublimation

·         luminous tones possible gives various fashion shades

·         PES and PES cat mixtures makes creation of dual-tone effects possible

·         Higher dyeing temperature means shorter dyeing time

Often used to achieve cross dyed effects, Cationic dyed yarn is woven in a pattern with regular yarn in the same fabric. The pattern becomes visible by dyeing the fabric in 2 baths, one for each of the types of yarn.

We at Benlon India are dyeing 110 & 150 denier of polyester yarn in Bright Sparkle and Semi-Dull. We are the only spinners in India, dyeing the yarn conventionally & producing dope dyed yarn. We are quality suppliers of polyester cationic dyed yarn which is used in the saree industry in South India and Varanasi. Following are the denier range in which we manufacture Polyester Dyed Yarn -

Denier Range	Lustre	Cross Section	Type Conventional Dyed
20/Mono/3 Ply & 5 Ply (Hollow Twisted)	Bright	Trilobal	Flat Yarn
110/72/0	Bright	Cationic	Bright Cationic Dyed Texturised
150/72/0	Bright	Cationic	Texturised
150/72/0	Bright	Cationic	Bright Air Texturised
75/36/450/2	B.S.P.	Trilobal	Texturised
50/36/0	B.S.P.	Trilobal	Texturised
75/36/450 1 & 2 Ply	B.S.P.	Trilobal	Flat FDY Yarn
50/36/450	B.S.P.	Trilobal	Flat FDY Yarn
150/36/450/2	B.S.P.	Trilobal	Flat FDY Yarn
150/72 & 200/72	B.S.P.	Trilobal	Texturised

Cationic dyeable polyester has become increasingly popular in recent years as a textile yarn, primarily because cationic dyes are capable of producing brighter shades than regular (disperse) dyeable polyester. In practice, the cationic dyeable polyester is frequently combined with other fibers, such as regular (disperse) dyeable polyester, wool, or cellulosic yarns, to produce various multicolor or cross-dyed effects. It is also known to use cationic dyeable polyester in combination with other yarns which are unaffected by cationic dyes to thereby achieve color/white effects.

Cationic dyeable polyester yarn is a special polyester yarn that can be colored with cationic dye, unlike ordinary polyester yarns. Excellent color development and fastness have enabled cationic-dyeable polyester yarns to be used in many applications. Conventionally, however, they must be dyed at high temperature and pressure, making it difficult to combine them with wool, silk or other natural fibers that tend to lose strength and texture when subjected to extreme conditions. Combination with polyurethane or other elastic fiber also has been problematic.

Cationic-dyeable polyester yarns that can be dyed at ambient temperature and pressure exist, but their yarn strength is generally 20-30% below that of ordinary polyester yarns. This weakness complicates their use as differentiated yarns, such as highly multi-filament or non-circular cross-section yarn, so applications and compatible materials are limited.

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