Shaahu waa cabbitaannada ugu badan ee la cabbo biyaha kaddib, waxaana ay qarniyo badan u ahayd cunnada ugu muhiimsan ee dadka.Caannimada shaaha ayaa keentay in ay kordho baahida baakadaha shaaha.Baakadaha shaaha ayaa isbedelay sannado badan, laga bilaabo caleenta shaaha ee dabacsan ilaa bacaha shaaha.Asal ahaan, bacaha shaaha waxaa laga sameeyay walxo aan noolayn karin sida naylon iyo polyester-ka, laakiin wacyigelinta sii kordheysa ee sii jirista deegaanka, macaamiishu waxay hadda raadinayaan fursadaha bacda shaaha ee deegaanka-saaxiibtinimo.Bacaha shaaha ee noolaha laga samayn karo oo laga sameeyay bacaha shaaha shaandhaynta, xaashida shaandhaynta, bacaha shaaha mesh PLA iyo bacaha shaaha ee PLA ee aan tolmada lahayn ayaa noqda isbeddel caan ah.

Bacaha shaandhada shaaha waa dhuuban, bacaha cad oo laga sameeyay isku dhafka warqad tayo sare leh iyo polypropylene heerka cuntada ah.Waxaa loogu talagalay inay qabtaan caleemaha shaaha dabacsan oo fududeeya samaynta shaaha.Waa ku habboon yihiin, raqiis ah oo diyaar ah.Waxay sidoo kale badbaado u yihiin deegaanka iyo caafimaadka dadka, taasoo ka dhigaysa doorasho caan ah oo loogu talagalay dadka shaaha jecel.

Warqad sifee, dhanka kale, waa nooc ka mid ah waraaqaha caafimaadka oo si weyn loogu isticmaalo goobaha shaybaadhka.Waxay leedahay sifooyin shaandhayn heer sare ah waxayna ku habboon tahay isticmaalka bacaha shaaha.Waraaqda shaandhada ee loo isticmaalo bacaha shaaha ayaa ah mid lagu daaweeyay heerka cuntada waxayna u adkeysan kartaa heerkulka ilaa 100 darajo Celsius.Tani waxay ka dhigaysaa mid ku habboon samaynta shaaha iyada oo aan waxyeello u geysan tayada isku dhafka ama caafimaadka macaamilka.

PLA mesh bacaha shaahawaxa laga sameeyay walxo dhirta ku salaysan oo la cusboonaysiin karo oo loo yaqaan polylactic acid (PLA).Waxay yihiin beddelka noolaha oo beddela naylon-dhaqameedka ama bacaha shaaha ee PET.PLA waxaa laga soo qaatay istaarijka galleyda, sonkorta sonkorta ama istaarijka baradhada, taas oo ka dhigaysa wax deegaanka u fiican oo la burburin karo.Qalabka mesh-ka ah ee PLA wuxuu u shaqeeyaa sida bacda shaaha shaandhaynta ee shaaha lagu karsado iyada oo aan si xun u saamaynayn dhadhanka ama tayada shaaha.

Ugu dambeyntii,PLA bacaha shaaha ee aan tolka lahaynWaxa kale oo laga sameeyey polylactic acid (PLA), laakiin waxay ku yimaadaan xaashi aan tol lahayn.Waxaa loogu talagalay in lagu beddelo bacaha shaaha ee dhaqameed ee ka samaysan waxyaabo aan noolayn karin.Bacaha shaaha ee PLA-da ee aan tolka lahayn ayaa ah doorasho aad u wanaagsan qof kasta oo ka walaacsan deegaanka maadaama ay si dabiici ah u qurmayaan 180 maalmood gudahooda oo aanay waxba ka geysan wasakhowga caagga ah.

Gebagebadii, bacaha shaaha ee noolaha laga samayn karo oo laga sameeyay bacaha shaaha shaandhaynta, xaashida shaandhaynta, bacaha shaaha mesh ee PLA iyo bacaha shaaha ee PLA-da ee aan timaha lahayn ayaa ah mustaqbalka baakooyinka shaaha.Kaliya maaha kuwo deegaanka u saaxiib ah, laakiin sidoo kale badbaado iyo ku habboon macaamiisha.Bacahaan shaaha sidoo kale saameyn kuma yeelan doonaan tayada ama dhadhanka isku dhafka shaaha, taasoo ka dhigeysa doorasho weyn oo loogu talagalay dadka shaaha jecel.Markaa haddii aad rabto in aad ku raaxaysato shaahaaga oo aad yaraato raad-raacaaga kaarboon-ka, dooro bacaha shaaha ee noolaha ah sida bacaha shaaha ee aad tagto.