Shree Tirupati Polypack
Manufacturer of PP/HDPE Woven Products
"Success Has A Simple Formula; Do Your Best And People May Like It." Sam Ewing
  Approach for Improvements  
  Novelty in STP’s ideas simply do not come by coincidence, they are driven by discipline, insight, expertise and inspiration. Our approach for improvements is with a clear vision; to achieve them we use quality raw materials, best transforming machineries and best systems (Quality Management System) that work in accordance to determine market success for our customers. The value of our expositions may seem as simple like 2 + 2 = 4, but at STP our expert knows, what is to apply where, instead of showing you a multifaceted formulation like [{(2-1) x 3} ÷ 3] = (result + sinØ)+ 2.158529015 = 4, and demonstrate that what they have done is a greatest invention.

Raw materials are contrived to encounter demanding performances.Transfiguring merits in production enables it to encounter challenging manufacturing and distribution and customer expectations.Technology adopted helps us to obtain higher efficiency to obtain the market rapidly then competitors.

Our plastic processing engineers, make us stand apart from our competitors who not only formulate designs, but formulate the experience which in-turn gives consumers the unique trade experience that they want and deserve.
Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins.

Linearlow-density polyethylene differs structurally from conventional low-density polyethylene (LDPE) because of the absence of long chain branching. The linearity of LLDPE results from the different manufacturing processes of LLDPE and LDPE.

In general, LLDPE is produced at lower temperatures and pressures by copolymerization of ethylene and such higher alpha-olefins as butene, hexene, or octene. The copolymerization process produces an LLDPE polymer that has a narrower molecular weight distribution than conventional LDPE and in combination with the linear structure, significantly different rheological properties.
  Production and properties
LLDPE has higher tensile strength and higher impact and puncture resistance than does LDPE. It is very flexible and elongates under stress. It can be used to make thinner films, with better environmental stress cracking resistance. It has good resistance to chemicals. It has good electrical properties. However, it is not as easy to process as LDPE, has lower gloss, and narrower range for heat sealing.
The rheological properties of LLDPE are summarized as "stiff in shear" and "soft in extension". It is not taken in most curbside pickups in communities. LLDPE can be recycled though into other things like trash can liners, lumber, landscaping ties, floor tiles, compost bins, and shipping envelopes.
LLDPE has penetrated almost all traditional markets for polyethylene; it is used for plastic bags and sheets (where it allows using lower thickness than comparable LDPE), plastic wrap, stretch wrap, pouches, toys, covers, lids, pipes, buckets and containers, covering of cables, geomembranes, and mainly flexible tubing.
Extrusion coating, heat & pressure lamination film.
  Regulatory Information
Meets the requirements stipulated in standard IS : 10146 on "Specification for Polyethylene for safe use in contact with foodstuffs, pharmaceuticals, and drinking water". It also conforms to the positive list of constituents as prescribed in IS : 10141. The grade and the additives incorporated in it also comply with the FDA:CFR Title 21,177.1520, Olefin polymers.
  Storage Recommendations:
Bags should be stored in dry/ closed conditions at temperatures below 50°C and protected from UV/ direct sunlight.
  Membership & Affiliations
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