Wpp Plastic Woven Coated Ad Star Block Bottom Valve Mouth packaging Bag

• Customization: Available
• Application: Construction Material
• Loading Capacity: 20kg 25kg 40kg 50kg
• Material: PP
• Print Type: Flexo or Gravure
• Valve: Internal or External
• Fabric Color: Customizable
• Bag Size: Customizable
• Air Permeability: Micropores
• Bat Type: Single Layer or Combined with Kraft Paper
• Feature: Recyclable, Moisture Proof, Printable
• Shape: Square Bottom Bag
• Making Process: Hot Air Welding
• Raw Materials: Polypropylene Plastic Bag
• Bag Variety: Block Bottom Valve Bag
• Transport Package: Bale or Pallet
• Specification: Customizable
• Origin: China
• HS Code: 630533
• Production Capacity: 300 Million PCS Per Year

Product Description

Product Description

This is a new and innovative packaging technology, without any adhesives or stitching, just through hot air welding, the tubular woven fabric can become a finished bag within several minutes.

The step of the bag processing begins from a coated pp woven fabric, and then, cutting, folding the bottom, welding with layers, bag finishing, totally by one machine, AD* STARKON

This bag is commonly used for the automatic packaging, transportation, and storage of cement, fertilizer, granulates, animal feed, and many other dry bulk products. The bag is stronger than paper, quick to fill, and has a good moisture barrier; all qualities that have contributed to the sharp increase in the use of this packaging type.
The loading is from 25 to 50kg, and printing can be offset, flexo, and also gravure print. On both sides.

Block Bottom Bags are perforated with a star micro-perforation system which allows air to come out holding the cement or other material without allowing any seepage.
 

Detailed Photos

 

Product Parameters

 

No.	Item	Specification
1	Shape	tubular or back seam
2	Length	300mm to 1200mm
3	width	39mm to 700mm
4	Top	hot air welded with filling valve
5	Bottom	hot air welded no stitching, no hole
6	Printing type	Off-set printing or Gravure printing on one or two sides, up to 8 colors
7	Mesh size	8*8, 10*10,12*12,
8	Bag weight	50g to 90g
9	Air permeability	20 to 160
10	Color	white, yellow, blue, or customized
11	Fabric weight	58g/m2 to 220g/m2
12	Fabric treatment	anti-slip or laminated or plain
13	PE lamination	14g/m2 to 30g/m2
14	Application	For packing the cement, stock feed, animal food, pet food, rice, chemical, etc
15	Inside liner	Can be combined with kraft paper and into a two layers bag
16	Characteristics	auto-filling, self-sealing, easy for pallet pack, save warehouse space, cost-effective compared with kraft paper bag
17	Material	100% original polypropylene
18	Optional choice	back seamed, combined with kraft paper
19	Package	about 500pcs for one bale or 5000pcs one wooden pallet
20	Delivery Time	within 25-30 days for one 40H container

 

More Features

Compared to other industrial sacks, Block Bottom Bags are strongest bags in polypropylene woven fabric. That make it resistant to dropping, pressing, puncturing and bending.
Worldwide cement, fertilizers and other industries have observed a zero breakage rate, doing all stages, the filling, the storage, the loading and the transportation.

• Bag Made from coated PP woven fabric, with outside PE lamination for moisture resistance.
• Top with valve for automatic closure.
• Specifications and printing could be according to the customer's requests 
• Eco-friendly polypropylene material can be fully recyclable
• Economical use of raw material than a 3-layer paper bag and PE-film bag
• Impressive reduction of the breakage rate when compared with conventionally used paper sacks
• Suitable for packing all types of free-flowing goods, such as cement, building materials, fertilizer, chemicals, or resin as well as flour, sugar, or animal feed.
• The loading is from 25 to 50kg, and printing can be customized as offset, flexo, and also gravure print. On both sides.
   

 

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 the 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 the strict inspection and testing to make sure a high-quality and durable bag for end users.

40kg 50kg Cement Bag

40kg pp cement bag - Standard Specification

• Length: 56 cm
• Width:  50 cm
• Bottom Height: 11 cm
• Mesh:   10x10
• Bag Weight:  70 ± 3 grams
• Color:  Beige or White or customized   

50kg pp cement bag - Standard Specification

• Length: 63 cm
• Width:  50 cm
• Bottom Height: 11 cm
• Mesh:   10x10
• Bag Weight:  80 ± 2 grams
• Color: Beige or white or customized

 

 

Our Advantages

1. Factory produce factory export. 
2. Engaged in this industry since 1983, with more than 39 years of experience
3. Top-grade equipment has been introduced since 2009 to ensure higher quality and reduce the overall cost for customers. 
4. Occupied a total of 160,000m2 of production area and can make sure an annual output of more than 500 million bags.
5. Professional design team, well-cooperated cylinder workshop, with sufficient experience in handling more than 6,000 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. 

Packaging & Shipping

Packaging:

Bale packing: 500,1000pcs/bale or customized. Free of charge.
Wooden Pallet packing: 5000pcs per pallet.
Export carton packing: 5000pcs per carton.

Loading:
1. For 20ft container, will load about:10-12tons. 
2. For a 40HQ container, will load about 22-24tons.