1)Product Description
W&H block bottom valve bag is a new and innovative packaging bag, the W&H sack concept is a patented, renowned single-layer plastic sack, made without adhesives from coated woven polypropylene fabric. Mainly used for the auto-filling of powder products.
2)Product Parameters
shape:tubular.
size:64*50*11cm,etc.such as,bag length450-910mm,bag width350-600mm,bottom width80-180mm.
top:hot air welded with filling valve.
bottom:hot air welded no stitching, no hole.
density:8*8 to 14*14 per inch.
fabric weight:55-180/m2.
lamination weight:16-22/m2.
air permeability:20-160.
off-set printing:front side1-8colors or back side 1-8colors.
gravure printing bopp film:front side1-10colors or back side 1-10colors.
fabric color:white,beige,black,red,blue,green,etc.
valve color:white,blue,red,etc.
valve material: pp woven fabric or non-woven cloth.
quality:100% virgin pp and pe raw material.
delivery time:10-20days for 1-4*40HQ.
price:reasonable and preferential.
service:good pre-sale and in-sale and after-sales service.
3)More Features
According to our customers' specific requirements, we can make bags in multi-function, bags in tubular shape or with back seam, bags in offset print, gravure print, in the external valve or internal valve, bag valve fabric can be in woven fabric or customized such like non-woven fabric, In order to easily find the filling spout, we can make a different color of the valve fabric to make it more visible for workers.
The air permission can be customized according to the filling stuff, and the speed of the filling machine.
For some materials has a higher requirement of moisture-proof, we can combine the pp woven fabric together with the kraft paper and make a two layers bag.
There is no question that is too small, no task is too big, all the demands we will take seriously and find the best solution for you.
4)Strict Quality Control
As a professional manufacturer of the Block Bottom Valve packaging bag, we make our bags:
1. In 100% virgin raw material
2. Eco-friendly ink with good fastness and bright colors.
3. Top grade machine to make sure a strong break-resistance, peel-resistance, stable hot air welding bag, make sure the utmost protection of your materials.
4. From tape extruding to fabric weaving to laminating and printing, to the final bag making, we have strict inspection and testing to make sure a high-quality and durable bag for end users.
5)Bag Applications
Cement packaging bags, Construction material bags, putty, gypsum bags, fine chemical packaging bags, plastic resin bags, flour bags…etc.
6)Our Advantages
1. Factory produce factory export.
2. Engaged in this industry since 1978, with more than 45 years of experience
3. Top-grade equipment has been introduced since 1994 to ensure higher quality and reduce the overall cost for customers.
4. Occupied a total of 200,000m2 of production area,We have 10sets of W&H production lines and can make sure an annual output of more than 450 Million bags.
5. Professional design team, well-cooperated cylinder workshop, with the sufficient experience in handling more than 8,000 kinds of bags, to meet the unique needs of customers
6.Good reputation, we aim at a long and stable relationship with our valuable customers.
7. Professional Services
*pre-sale service
Any of your questions will be taken seriously and offer you reference opinions.
* In-sale service
Make you posted on the production progress with on-site follow-up for each production step.
* After-sales service
We are responsible for EACH bag we produced. Feel free to contact us in case any questions you may have. We will answer you timely, and cooperate with you positively.
7)Production process
Raw material to wire drawing to weaving to printing to laminationto making bag to packing to poading.
8)Different bag type
Inner valve bag,outer valve bag(extension valve bag,pocket valve bag),lamination valve bag,colorful bopp valve bag.opening square bottom bag.
9)Packaging & Shipping
Packaging:
Bale packing: 300,or 500,or 800,or 1000pcs/bale or customized. Free of charge.
Wooden Pallet packing: 5000-7000pcs per pallet.
Export carton packing: 5000-7000pcs per carton.
Loading:
1. For a 20GP container, will load about:10-12tons(20 pallets).
2. For a 40HQ container, will load about 22-24tons(40pallets).
10)Our customer
Our customers are all over the world, such as Europe, Africa, South America, North America, Oceania, Asia.
11)FAQ
Q:Could you send me a sample before I place an order?
A:Yes. We can send a sample for your confirmation before bulk production.
Q:Could you offer me the bulk order price?
A:Pls send your bag details or sample and tell us the quantity before quotation.
Q:Can you customize new sizes?
A:Yes.
Q:How soon the shipment can be if an order is placed?
A:Bulk production time is about 10-30 working days base on the different quantities.
Q:What's the min. order quantity?
A:Our MOQ is 1000 PCS. Any quantity is ok, just different price.
Q:Do you have bags on stock?
A:We don't have bags on stock for sale.
Q:Can you print my company name and logo on the bags?
A:Yes, .off-set printing or gravure printing is ok.
Q:How do you ship the products?
A:By sea by train or truck.
Audited Supplier 
2)Product Parameters
){kind=link}