سعر فوب
أحصل على آخر سعر( Negotiable )
|5 Kilogram Minimum Order
بلد:
India
نموذج رقم:
-
سعر فوب:
( Negotiable )أحصل على آخر سعر
الموقع:
-
سعر الحد الأدنى للطلب:
-
الحد الأدني للطلب:
5 Kilogram
تفاصيل التغليف:
As specified by the customer
موعد التسليم:
15 to 20 Days
القدرة على التوريد:
1000 Kilogram per Week
نوع الدفع:
T/T, L/C, D/A, D/P, Western Union, Money Gram
مجموعة المنتج :
-
India
الشخص الذي يمكن الاتصال به Mr. NIMESH
203,Sangath Apartment,Shilpinagar,kalanala, Bhavnagar, Gujarat
Acid dyes are water
soluble anionic dyes that are applied to fibers such as silk, wool,
nylon and modified acrylic fibers from neutral to acid dye baths.
Attachment to the fiber is attributed, at least partly, to salt
formation between anionic groups in the dyes and cationic groups in
the fiber. Water soluble Acid dyes are not substantive to
cellulosic fibres. Acid dyes are used both commercially and by the
studio dyer to dye protein/animal fibers such as wool, silk,
mohair, angora, alpaca and some nylons and synthetics. Acid dyes
require the use of an acid such as vinegar, acetic or sulphuric
acid to set the color.
Acid dyes sound scary to some novices, who imagine that the dyes
themselves are caustic strong acids. In fact, the dyes are
non-caustic, are in many cases non-toxic, and are named for the
mild acid (such as vinegar) used in the dyeing process, and for the
types of bonds they form to the fiber. Some of them are
significantly more toxic than fiber reactive dyes, while others are
even safe enough to eat, and are sold as food coloring.
Acid dyes
fall into several classes:
1. Leveling acid or strong acid dye,
2. Milling or weak acid dyes, and
3. Super milling or fast acid or neutral acid dyes.
They are also the acid dye component of all-purpose or union dyes such as Rit and Tintex, says Knutson. It's difficult now to find out which specific acid dyes fall into which of these dye classes, however. At least part of the reason is that the information is not particularly useful to the dyer.
Most
histologic dyes are classified either as acid or as basic dyes. An
acid dye exists as an anion (negatively charged) in solution, while
a basic dye exists as a cation (positive charge). For instance, in
the hematoxylin-eosin stain (H&E), the hematoxylin-metal
complex acts as a basic dye. The eosin acts as an acid dye. A very
large class of dyes containing acidic groups, such as the sodium
salts of sulfonic acids or phenolic groups. They are more soluble
and have less tinctorial value than basic dyes but they also have
greater light fastness. They do not form lakes with tannin. Acid
dyes are used in dyeing leather, paper, etc., and their particular
value lies in their ability to produce brighter, more uniform
colors. They are normally applied from an acid dye liquor (acetic,
formic, or sulphuric acid); however, unless applied from a neutral
or only slightly acid dyebath, i.e., pH of 6.0 to 7.0, their use is
likely to result in acid degradation of the material
dyed.
بلد: | India |
نموذج رقم: | - |
سعر فوب: | ( Negotiable ) أحصل على آخر سعر |
الموقع: | - |
سعر الحد الأدنى للطلب: | - |
الحد الأدني للطلب: | 5 Kilogram |
تفاصيل التغليف: | As specified by the customer |
موعد التسليم: | 15 to 20 Days |
القدرة على التوريد: | 1000 Kilogram per Week |
نوع الدفع: | T/T, L/C, D/A, D/P, Western Union, Money Gram |
مجموعة المنتج : | - |