The polypropylene woven bags (PP bags) are tubular woven made - on circular looms, with no lateral sewing. The product is designed for packing commodities ranging from 10 kg to 50 kg, such as sugar, rice, flour, beans, seeds, cereals, animal feed, salt, fertilizers, chemicals, etc. The PP woven bags can be flat or with gusset, being suitable to be palletized.
The fibers and the fabric are quality tested in our high-tech laboratory for tensile strength, elongation, and denier, proving a resistance that is very hard to find at other suppliers.
Polypropylene woven bags can be:
- Open mouth bags;
- Valve bags;
- Laminated;
- With PE Liner, without PE Liner.

Construction

Dimensions of bags

Besides the PP woven bags, Living Plastic Industry S.A. can produce also polyethylene woven bags (PE woven bags) and polyethylene (PE) liners for PP bags.

LINER BAGS: 
We manufacture HDPE / LDPE liner bags. As per our customer's use we would insert the liner bags inside the PP bags or pack them separately.

Construction

The liner bag can be inserted in the PP woven sacks and can be loose in bottom and sewn in top.

The cement bags offered by our company are made of PP woven laminated material (no paper!), provided with gusset and valve. They are specially designed for the automatic or manual packing of 50 kg of cement and 25 kg of lime, but, based on request, they can be tailored for other chemical products.

They are the best alternative to the paper bags, the advantages which they bring to the end-user being obvious:
- higher resistance during the filling and handling process (even it is dropped from 3 m height, the bag won't break;
- water proof - unlike the paper bag which is severe damaged after contact with humidity and water, our bag resistance is not diminished by these factors;
- the sewing could be covered with paper to avoid the leakage of cement dust.

Construction

 

These are our vegetable bags, suitable for potato, cucubers, carrots, onion, etc;
We can offer you two standard sizes (for 5 to 25 kg);
Our bags have no limit when it comes to colors: red, yellow, green, purple, white, orange, etc.
Three more words: RESISTANCE, NICE ASPECT, GOOD PRICE.

Construction

We can deliver Raschel bags in reel for automatic loading machinery with core diameter 90 ÷ 110 mm.

 

 

Made with a closing zipper at the top of the bags;
Suitable for drugstores, frozen stuff, food, chemical, clothing industry;
Our offer includes numerous sizes (40x60mm to 340x450mm);
The printing offer includes printings in 1 to 6 colors, white printing for hand writing, plain zipper bags.

Construction

PP strapping is used to secure, to close, to unitise or to strengthen packages or to reduce package volumes; it is applied under tension by hand tools or automatic machines. PP strapping is produced in extrusion lines from polypropylene resin and provides for high-strength applications. PP strapping, on account of its resistance to corrosion, its superior elongation, improved safety features (being less dangerous when the strapping is removed from the load) and lower weight provides benefits which cannot be achieved by steel strapping.
Provides considerable advantage for many applications such as packing, palletizing, bundling, utilizing. It's excellent elongation and stiffness satisfy the variety of customer's needs.

Technical Data:

 

Plain, white or printed shopping bags, T-shirt type, different sizes.
T-shirt bags with a special tab for easy "one at a time" tear-off dispensing. Large side handles makes these the most convenient bags for carrying large or heavy packages.

Technical Data:

 

The printing cylinders or plates are prepared from positives of pages on which neither text nor illustrations are screened. The photosensitive substance necessary for carrying out the photoengraving operation, carbon tissue, is separately packaged to permit it to be treated before being affixed to the metal. Carbon tissue is paper, in sheets or on rolls, coated with a layer of gelatin. This layer is sensitized before use by being plunged into a solution of potassium bichromate. The carbon tissue is first exposed to intense light through a glass plate bearing a transparent screen on an opaque background and then exposed a second time through a positive of the pages. During these two exposures the gelatin is hardened by the light, completely in the white and screened areas, more or less deeply in the halftones of the photographic illustrations, and not at all in the areas covered by text and lines.

The carbon tissue is then applied to the copper surface of the cylinder (or plate). The tissue is then peeled off, leaving the gelatin film fused with the metal. The cylinder (or plate) is plunged into a warm-water bath, which dissolves the gelatin in inverse proportion to the degree to which it was hardened: totally in areas where it received no light like the text and line drawings, more or less deeply in the halftone photographic illustrations, and not at all in the screened areas.

The etching of the copper is begun by sprinkling it with a solution of ferric chloride, which attacks the metal in the areas where the gelatin is totally dissolved and bites into it more or less deeply depending on the thickness of the surviving gelatin that it must penetrate. After being etched, the printing surface can be reinforced by chromium plating.

Improvements on this classic method of preparing the rotogravure plate are continually being made. The carbon tissue may be replaced with silver emulsions on a plastic base; a direct copy without carbon tissue may be made by dusting the cylinder with a photosensitive substance and projecting the image on the surface of the cylinder by optical means or by electronic engraving.

Plates for rotogravure are made of solid copper. Rotogravure cylinders consist of a steel mandrel on which a layer of copper has been deposited by electroplating. After printing, the etching is removed by grinding and a thin film of copper deposited to restore the cylinder to its original diameter. Restoration is simplified if the film can be prevented from adhering to the cylinder so that it can be ripped off after printing. This can be done by coating the surface of the cylinder with a copper-mercury amalgam before electroplating. After plating, the new copper film is then polished. Some electroplating baths produce a shiny copper finish, dispensing with the polishing operation.

Technical Data:

Scope of rotogravure:
Even in long runs, rotogravure produces quality illustrations with rich colors. It is less suited to printing small typefaces because they are cut up by the screen.