For DML triggers you can use below cursor. 
If you need to disable `DDL` triggers as well, you will need to create similar cursor base on `sys.triggers` view. (as in `sys.objects` we have only DML cursors)

```
declare @sql nvarchar(150)

declare trigger_cursor CURSOR FOR
select  'DISABLE TRIGGER ' + SCHEMA_NAME(schema_id)+'.'+name 
       +' ON '+SCHEMA_NAME(schema_id)+'.'+ OBJECT_NAME(parent_object_id)
	from sys.objects
	where type = 'TR'


OPEN trigger_cursor  
FETCH NEXT FROM trigger_cursor INTO @sql 


WHILE @@FETCH_STATUS = 0  
BEGIN  
      print @sql
	  --sp_executesql @sql 
      FETCH NEXT FROM trigger_cursor INTO @sql 
END 

CLOSE trigger_cursor  
DEALLOCATE trigger_cursor 

```