What are the Requirements of a Substance to Act as a Dye? - PowerPoint PPT Presentation

About This Presentation
Title:

What are the Requirements of a Substance to Act as a Dye?

Description:

The dyes are a substance used for coloring textiles, papers, leather, and other things. This color doesn’t get altered by washing, exposing to the sunlight and heat, and other factors. Here is the we can classify dyes into two categories; natural dyes and synthetic dyes. Read More: – PowerPoint PPT presentation

Number of Views:53

less

Transcript and Presenter's Notes

Title: What are the Requirements of a Substance to Act as a Dye?


1
What Are The Requirements Of A Substance To Act
as A Dye?
Sagar Colour Co. is one of the foremost textile
dyes and chemicals manufacturers in Gujarat as
well as other parts of India. 
2
Requirements Of A Substance To Act as A Dye?
3
  • The dye is a substance used for coloring
    textiles, papers, leather, and other things. This
    color doesnt get altered by washing, exposing to
    the sunlight and heat, and other factors.
  • It is different from the pigment which is a
    beautiful colored powder dispersed in a medium.
    The examples are paint and ink.
  •  
  • Pigments are inorganic or organic compounds.
  • A dye, on the other hand, is mostly an organic
    compound.

4
  • Based on the source, we can classify dyes into
    two categories natural dyes and synthetic dyes.
    Both types have different characteristics and
    qualities.
  • They are used in different applications based on
    their suitability and applicability.
  • Dyes are soluble in water and/or organic
    solvents. Pigments are insoluble in both types of
    liquid media.
  • A dye can color substrates that show affinity
    towards the dye. A pigment can be used to color
    any polymetric substrate. However, the coloring
    mechanism is different in both cases.

5
What are natural dyes?
  • Until the end of the nineteenth century, all dyes
    were obtained from natural sources. The main
    sources were vegetables, plants, trees, and
    lichens.
  • The oldest evidence of the dyeing method is found
    in the Egyptian tombs. People discovered
    beautifully died pieces of fabrics in the ancient
    pyramids.

6
  • A few dyes were extracted from insects and
    animals as well.
  • There are hieroglyphs about the dye extraction
    process.  The natural dyes arent highly stable,
    and they are complex mixtures.
  • Alizarin and indigo are significant dyes.
    Alizarin is red, and Indigo is blue in color.
    These two dyes are still in use. They are rated
    high in terms of dying properties. Though the
    synthetic indigo is also widely used, natural
    indigo is always in demand for coloring types of
    denim.

7
Synthetic dyes
  • After 1850, chemical dyes were discovered in
    Great Britain. They got immense popularity in a
    short time. The synthetic dyes replaced natural
    dyes because they were produced in bulk.
  • It was the foundation of dyes manufacturing indust
    ry which reduced the cost of dying. Though the
    earlier synthetic dyes were not good in quality,
    they improved consistently in the later
    centuries.
  •  
  • Nowadays, we have incredibly good-quality
    synthetic dyes available in a wide spectrum of
    colors.In the nineteenth century, the studies of
    coal tar revealed that reactions of coal tar
    compound can yield various dyes.

8
Also Read-
  • Thus, dyes have changed the world by producing
    beautiful eye-catching products. The continuous
    advancement in technology introduces new and more
    attractive dyes in the market.
  • If you are looking for dyes and chemicals
    manufacturers in india then Sagar Colour Co. is
    one of the foremost acrylic dyes, cationic
    dyes and textile chemicals manufacturers in
    Gujarat as well as other parts of India.
  •  
  • Types Use of Cationic Dyes in Textile Industry 
  • What is The Difference Between Acidic Dyes and
    Basic Dyes?

9
CONTACT US
  • Phone No- 261 7139999
  • E-Mail- sagarcolourco_at_yahoo.com
  • Address- 403, Empire Estate, Near Udhana
    Darwaja, Ring Road. Surat 395002, India.

Website- https//dyesmanufacturerindia.com/
Write a Comment
User Comments (0)
About PowerShow.com