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AD*STAR® block bottom woven bags are made by extruding polypropylene resin into sheets, cutting the sheets into tapes, and weaving the tapes into the tubular fabric. The tubular fabric is then laminated, cut, and converted into a finished bag. The following information demonstrates the basic steps in manufacturing a poly woven block bottom bag.
Starlinger Company supplies integrated bag converting machinery to produce the woven valve bag from start to finish. Production steps include:
Tape Extrusion: High-strength tapes are produced by stretching after the resin extruding process.
Weaving: Tapes are weaved into tear-proof flat fabric in circular looms.
Coating: A thin layer of PP film is laminated to the woven fabric. Or additional BOPP film applied which can offer more eye-catching print and marketing effect.
Printing: Both flexo print and gravure print up to 8 colors, can be printed on the bag fabric.
Slitting: Top, bottom, and valve patches are pre-cut for the converting line.
Converting: Using Starlinger machines, sacks are assembled by forming the block bottom and applying patches and the valve using hot air sealing technology. No glue is used to seal the bag.
Baling: Bags are palletized and baled. Normally 8,000 bags can be baled in a single pallet.
AD*STAR® Bag Specifications and Sizes
Specifications
Type: Block Bottom Valve
Material: Coated PP Woven fabric
Construction: Single Ply: Woven Poly
Two-Ply: Woven Poly + BOPP
Two-Ply: Woven Poly + Kraft Paper
Tape Width: 2.5mm – 5mm
Fabric Weight 50 – 80 gsm
Coating Weight: 17 – 25 gsm
Valve Material: Woven PP, PE Film, Non-Woven Spunbond
Perforation: Adjustable Levels of Perforation
Valve Type: Standard Internal, Tuck-in, and Ultrasonic Seal
Bag Size Min. & Max.
Width: 11.81 – 23.625 Inches
Length: 17.72 – 35.83 Inches
Bottom Width: 3.15 – 7.00 Inches
Need Customized Woven Poly Valve Bags Now?
If you have any need of these PP woven packages , welcome To contact me any time via the following ways :
Sales Manager:Daniel
Mobile Phone:+86- 13802155833
E-mail:tjwhoking@163.com
QQ:490045876
SKYPE:antonio87455
WeChat:+86-13802155833
WhatsApp:+ 86-13802155833
Leading manufacturer of AD STAR bag in China
The first factory who import Starlinger block bottom bag macking machine from Austria
What is an AD STAR sack
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.
Feature
Made from 1 layer PP woven fabric, with outside PE lamination for moisture resistance.
Top with valve for automatic closure
Specifications and printingcould beaccording to customer’s requests
Eco-friendly polypropylene material, can be fully recyclable
Economical use of raw material than 3-layer paper bag and PE-film bag
Impressive reduction of the breakage rate when compared with conventionally used paper sacks
Suitablefor packingall 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 side.
· Block BottomBagsare perforated with star micro perforation system which allows air to come out holding the cement or other material without allowing any seepage.
· the AD*STAR Block Bottom Cement Bag is the lightweight among woven bags made of polypropylene fabric. Less weight means material savings in the manufacturing process, and despite its low weight, the PP woven bag is robust.
Advantages of our AD Star block bottom bags:
· Higher Strength
· Compared to other industrial sacks, Block BottomBags are strongestbags 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.
· Maximum protection
· Coated with layer of lamination, Block BottomBags keep your goods intact till they are delivered to the customer. Including the perfect shape and intact content.
· Reduce Space through Higher Stacking/ Efficient stacking and transportation
· Due to perfect rectangular shape, Block BottomBags can be stacked high using space efficiently.And can be used in both manual & automatic loaders.
· Fits perfectly with palletizing or truck loading equipment , as it is the same size as other sacks made from different materials.
· Easy Transportation
· Block BottomBags fits perfectly with palletizing or directly in truck. So its transportation become very easy.
· No Spillage
· Block BottomBagsare perforated with star micro perforation system which allows air to come out holding the cement or other material without allowing any seepage.
· More Market Value through more printing surface
· Block Bottom bags takes a box type shape after filling thus offers more printing surfaces on the bag through Top & Bottom Flat which can be read from sides when the bags are stacked.
· This increases visibility for the customers and adds to the brand image and better market value.
· Resists water & humidity
· High humidity and rough handling is easily tolerated by Block Bottombags. So they arrive without any broken at customer warehouse, resulting in utmost customer satisfaction.
· Environment Friendly
· Block Bottombagsare Fully Recyclable.
· It has welded ends and no toxic glue is ever used, hence avoiding any pollution.
· Block Bottombagsare required in low weight compare to other bags, so we can save raw material.
Thelow failure rate and breakage, becomesan important economic factor and a big environmental benefit.
Our Mainly Products:
All kinds of traditional PP woven sack/bag from 5kg – 100kg loading weight for rice, cereal, fertilizer, animal feed, grains, agriculture food, etc.offset printing bag, flexible printing bag, gravure printing bag, OPP laminated bag, inner PE liner PP woven bags, and other special customized bags .
AD*star cement valve bag with or without inner paper 25kg-70kg , any color , any size, eight sets Austria starlinger production lines, about 3 MILLION pcs annual production quantity.
FIBC bag , jumbo bag , big bag , bulk bagpast testing, have UN products production right.
Sales Manager:Daniel
Mobile Phone:+86- 13802155833
E-mail:tjwhoking@163.com
QQ:490045876
SKYPE:antonio87455
WeChat:+86-13802155833
WhatsApp:+ 86-13802155833
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