OB-1 For Woven Bag

Product details

1. Quick details

Product Name: Fluorescent whitening agent 393 (Greenish & Yellowish)

Chemical name: 4,4′-Bis(2-benzoxazolyl) stilbene

C.I.NO.: 393

Structural formula:

2. Physical and chemical index:

1) Appearance Yellow greenish powder

2) Maximum absorption spectral wavelength 374nm

3) Maximum fluorescence emission wavelength 434nm

4) CIE L*a*b* L*≥102; a*≤-20; b≥50

3. Product features

Different mesh size on requirement

Well protective packages

Sample free (below 1kg)

4. Application

The plastic woven bag is made of polypropylene (PP) as the main raw material, which is extruded and stretched into flat filament, then woven and made into bag. The color of woven bag is generally white or gray white, non-toxic and tasteless, and generally harmless to human body. Although it is made of various chemical plastics, its environmental friendly, and its recyclable.

Woven bags are widely used as package of industrial and agricultural products, or food package like rice and flour, or all kinds of traveling bags. The plastic woven is also widely used as cover in transportation and construction.

Fluorescent whitening agent 393, also called OB-1, is a kind of optical brightener for woven bag, especially has good effect for woven bag use recycled material. The melting point of OB-1 is 353-359℃, can totally meet the temperature requirement of woven bag. It’s weather-ability is also very good, can improve the anti-ageing ability of woven bag, to prevent the discoloring problem later. Only to add 200g OB-1 into 1mt of raw material, can get very bright white color woven bag.

What is the Recommended dosage of OB-1 in PP products?

A: The dosage depends on the proportion of the virgin material and the recycled material. For 100% virgin PP, the dosage we recommend is as below:

From this chart, you can see, it’s important to control the dosage in appropriate percentage, over dosing will cause contrary effect. (The whiteness value in chart is only for demonstration, it’s not actual test value)

Do you have after-sale service?

Yes, Good after-sale service, handling the customer complaint and solve problem for customers.

What is the lead time of your product?

Depends on our stock. If have sufficient stock, generally take 5 working days. Usually we suggest to book at least 20 days in advance.

What is the package of your product?

The primary package is 0.06mm thickness pharmaceutical grade PE bags, double liners. The secondary package is usually 25kg fiber drum with wooden lead and iron hoop. We can also customize package according to your requirements. We have experience on customizing 25kg cardboard cartoon, 10kg cardboard cartoon, 10kg fiber drum and 5kg small plastic bag in 25kgs drum. Welcome to send us your specific requirements on package.

Hubei Hongxin Chemical Co., Ltd, established in 2006, is located in Makou Inudstrial Park, Wuxue, Hubei. It is a national high-tech enterprise who has the right of self-import and export. It is specialized in the production of fluorescent brighteners. The production capacity of it’s main product "Optical brightener OB-1" is 3,000 tons / year. The company has more than 120 employees, including 8 senior engineers, 40 backbone technical personnel, and long-term employed domestic well-known professors as technical consultants. It also has long term cooperation with a number of chemical engineering colleges/universities and scientific research institutions. The company has always adhered to the development purpose of "quality first, reputation first" , to the business philosophy of "enthusiasm, honesty, focus, and truth" , and striven to build the enterprise into a world-famous production base of fluorescent brighteners.

1. We have a group of professional sales team. Our service principle is "customer-priority" not "profit-priority".

2. Our sales staff provide 1-stop service for customers. You don’t need to ask different person to know market information, shipping schedule or documents status.

3. Your contact will be on line for 14 hours per day, or 24 hours when noticed in advance.

http://www.hongxinchemical.com/