hey there,

i am trying to remove some messages from the chat window for some days now.

but not any messages just the messages like "[Player XYZ] is is producing Heavy Netherweave Bandage" etc.

it feels like heavey spamming while in SW or IF with these messages inside the chat window.

any idea? Do i have to use some addon or is there a solution without addon?

Right click the offending chat tab, and select settings. One of the options that pops up has various loot settings, which you can enable or disable. You may want to create a new window, call it "Spam" if you like, and have everything you don't look at regularly show in there, and disable those things in the chat or combat log windows.