Ukwazi Ukuthola Ukuhlola Iphepha Lokudla Lokumelana Ne-Oil Ne-Moisture?

Ukuze uhlole iphepha lokudla lokumelana namafutha nokunisela, sebenzisa lezi zindlela ezihlelwe kahle, ezihlanganisa izivivinyo ezilula ezisebenzayo kuya ezinqubweni ezijwayelekile:

 Ukwelashwa Kwe-Oil Resistance

1. Simple Oil Application Test

   - Materials: Iziqhamo zezitshalo, i-dropper, i-timer, iphepha elimhlophe.

   - Procedure:  

     1. Beka iifood paper kwi white tissue.

     2. Faka amafutha angu-2 kuya ku-3 ephepheni.

     3. Linda 15–30 maminitsi.

     4. Bheka ithishu ukuze ubone izikhumba zamafutha. Ukungabi nezikhumba kukhombisa ukumelana okuhle.

2. Kit Test (Standardized Method)

   - Standard: TAPPI T 507 or ASTM D722.

   - Materials: Kit test solutions (liquids ze surface tension numbered 1–12).

   - Procedure:  

     1. Faka izixazululo (uqala ezibhalwe phansi) ephepheni.

     2. Bheka ukufaka (ukumnyama/ukukhanya).

     3. Inombolo ephezulu engaphumeleli ikhetha izinga lokumelana negrease.

3. Ijoliso eNcinciweyo ye-Oil Test

   - Materials: I mafuta ahlanganiswe ne-dye yokudla.

   - Procedure:  

     1. Faka i-oyili e-dyed ephepheni.

     2. Bheka ingemuva ukuze ubone ukudluliselwa kombala.

     3. Ukungena okusheshayo kukhombisa ukumelana okuphansi.

Moisture Resistance Testing

1. Uhlolo lweMvula

   - Materials: 水, 滴管, 计时器.

   - Umsebenzi:  

     1. Beka i-ndwangu ye-mvula ephepheni.

     2. Bheka isikhathi sokumunca. Ukubumba kukhombisa ukumelana; ukumunca okusheshayo kukhombisa ukumelana okuphansi.

2. Cobb Test (Standardized)  

   - Standard: ASTM D3285.

   - Materials: Cobb tester, distilled water, scale.

   - Procedure:  

     1. Bhalisa iphepha kwi-Cobb ring.

     2. Yongeza amanzi imizuzwana engama-30 (noma isikhathi esichaziwe).

     3. Misa weigh gain post-test. Lower absorption = better resistance.

3. Ukulinganisa kwe-Angle Yokuxhumana

   - Tools: Izi zikhala goniometer.

   - Procedure:  

     1. Beka i-ndwangu ye-mvula ephepheni.

     2. Mesura la angulo formita. Pli grandaj anguloj (>90°) indikas pli altan hidrofobion.

 Izikhumbuzo Jikelele  

- Controls: Bheka nempahla eyaziwayo engaphumeleli.

- Environment: Conduct tests at standard temperature/humidity (e.g., 23°C, 50% RH).

- Quantitative Analysis: Weigh paper before/after exposure to measure absorption.

Izi zindlela zilinganisa ubulula bokusebenzisa ekhaya/ezindaweni zokusebenza kanye nokunemba ezilungiselelweni zamalabhorethri, kuqinisekisa ukuhlolwa okujulile kokumelana nokwaziswa nokumuncu emaphepheni okupakisha ukudla.