Mgbe ụfọdụ, anyị na-ahụ na fasteners edozi na igwe bụ nchara ma ọ bụ ruru unyi. Ka ọ ghara imetụta iji igwe eji eme ihe, otu esi ehicha ihe nkedo aghọwo ihe dị ezigbo mkpa. Nchedo arụmọrụ nke ihe nkedo enweghị ikewapụ na ndị ọrụ nhicha. Naanị site na ịsacha na idobe ihe nkedo mgbe niile ka enwere ike ịrụ ọrụ nke ihe nkedo nke ọma. Yabụ taa, m ga-ewebata ọtụtụ ihe nhicha a na-ejikarị eme ihe.

1. Soluble emulsified ihicha gị n'ụlọnga.

Ihe emulsifiers soluble na-enwekarị emulsifiers, unyi, ihe mgbaze, ihe nhicha, ihe mgbochi corrosion, na obere mmiri. Ọrụ nke mmiri bụ igbari emulsifier, nke na-agbaze unyi n'elu ihe nkedo, ma n'otu oge ahụ na-ahapụ ihe nkiri na-egosi nchara n'elu ihe nkedo. Emulsified detergent bụ ngwaahịa mmanụ dị ọcha etinyebere nke na-aghọ emulsion ọcha mgbe etinyere ya na mmiri. Emulsifiers na ncha na-ejide ụmụ irighiri ihe ma gbarie ha n'ime ihe nhicha nwere ihe mgbaze na mmanụ.

2. Onye na-ehicha ihe alkaline.

Ndị na-ehicha alkaline bụ ihe nchacha na salts metal alkaline ụwa nke surfactants. Uru pH nke onye na-ehicha ihe na-achọ ka ọ dị gburugburu 7. Ihe na-eme ka ihe dị ọcha nke ụdị nhicha a bụ hydroxides, carbonates, phosphates, wdg dị n'elu dị iche iche salts na surfactants bụ tumadi maka ihicha mmetụta na-akụnụba.