Thermal Paper Coating Chemicals: Cvl

1.Product Name:Crystal violet lactone(CVL )

Chemical name:

3,3-bis-(4-dimethylaminophenyl)-6-dimethylaminophthalide

CAS RN: 1552-42-7
EINECS:216-293-5

Molecular formula: C26H29N3O2

Molecular weight:415.5274

Melting point:180-183ºC

Water solubility :<0.1 g/100 mL at 22.5ºC

Appearance: Pale yellow or white powder

2.Crystal violet lactone(CVL )Functions:

CVL is a good thermal and pressure sensitive dye which has the following advantages:discoloration fast and high chromaticity and oil-soluble, widely used in the commercial invoice, computer output terminal summons,information records,etc.

3.Crystal violet lactone(CVL )Workshop:

General dye is colored conjugated system in addition to the CVL. CVL can be used as a thermal and pressure sensitive dye, its conjugated system is interrupted. So CVL has no color. But it will be colored with the effect of chromogenic agent. Under acid condition, CVL will show violet color(bright, high concentrations).

CVL is an important functional dye in the production of pressure-sensitive materials or heat sensitive materials.

Company Information

We are QINGDAO JIERUIXIN MACHINERY AND TECHNOLOGY CO.,LTD
which company is mainly working on paper coating machine ,paper making machine and related technology. Through more than 10 years effort , Besides the machine self ,we have our own chemist and prefer to supply chemical ,formulation ,technology and other suggestion to customers.Then our formulation will match our machines ,and get the best quality paper for them. Now Our company had been one of the famous paper coating machine manufacturer in China and our coating machine and technology had been exported to Iran ,Egypt ,Mexico ,Australia , India and etc.

Our Services:
♦. Reasonable suggestions for selection of equipment.
♦. Provide detailed description and assembly drawing , to make you more aware of the device's ability to work.
♦. Engineers on-site equipment installation and commissioning.
♦. Train and teach your worker to operate the paper machine, 

♦. Professional technical guidance and technical support during your production, make sure the device's work properly and production.
♦. Equipment modification and updating.
♦. We will testing installation machine in the factory workshop , to ensure safety and quality.

♦.Supply Carbonless paper and Paper coating chemicals ,formulation ,technology and other suggestion to customers.

♦.After-sales service for one year: equipment maintenance guidance.

♦.Provide Turnkey projects.

⇓These are our main paper coating machine as follows, any other requirments, please feel free to contact with us. We accept customized products at the basis of complying with the requirements of technical specification. Very glad and look forward to your inquiry.

Engineer is available for exporting machine installing and testing running, and supply the technical support for customer worker training .