Ki jan fè enspeksyon sak te fè nan prela?

Lè nou fè enspeksyon sak, nou jwenn ke nan dènyèman ane prela te vin yon materyèl popilè pou sak, espesyalman pou sak manje tèmik oswa sakado. Kòm li se nan fasil eswiyan bon jan kalite pwòp ak ki enpèmeyab, ansanm ak pri ki ba li yo, bâche pral pi lajman itilize nan endistri sak la. Se poutèt sa konnen ki jan prela pwodui se premye etap enspeksyon sak ki fèt ak li.

Fason pou enspeksyon sak fè prela:

1.Three main kinds of raw materials are necessary for tarpaulin, which includes Pvc powder/chips, plasticizer and stabilizer, plus some additives, go through high speed stirring with heat.
2. Plasticization of Banbury mixer (it decides the color of the material. And it depends on sequence of added materials, volume, temperature, speed of the machine, time of the reaction, pressure of the machine, type of the rotor and so on) ;
3. Go through filtering machine;
4. Go through calendar machine and become PVC film;
5. The two layers of pvc films are heated on laminating machine, the top and the bottom. There is another layer of mesh in the middle, and then through the high pressure of the laminating machine and become of final tarpaulin material.

The tarpaulin material will through finish product machine and be cut well and be rolled up in correct length. The tarpaulin material will go through finish product machine and be cut well and be rolled up in correct length.

So you will know the colour of tarpaulin is not the colour of mesh at all. It is the colour of PVC layer of top and bottom. Usually we call the shining layer top and the mesh grain layer bottom. We must keep this in mind during the bag inspection.

Should you have any questions, please feel free to contact us at abel@abelinspection.com.