مالفرق بين attach to و tie to

attach sth to sth (QUALITY) phrasal verb SLIGHTLY FORMAL
To attach a particular quality to something is to consider it to have that quality:
I don't attach any importance/significance to these rumours.
She attaches great value to being financially independent.
.************************************************* *******************************************
attach to sb/sth phrasal verb MAINLY UK FORMAL
If you say that a particular quality attaches to someone or something, you mean that they have that quality:
Don't worry - it was an accident and no blame attaches to either of you.
[+ ing form of verb] Great honour attaches to winning this award

tie (FASTEN) /taI/ verb [I or T] tying, tied, tied
1 to fasten together two ends of a piece of string or other long thin material, or to (cause to) hold together with a long, thin piece of string, material, etc:
Could you tie this piece of string for me?
This skirt ties at the waist.
She tied the ribbon tightly in a bow/knot.
I tie my hair back when it's hot.
Tie (up) your shoelaces, or you'll trip over.
2 be tied to If you are tied to a job, place or person, you are forced to stay with them:
I felt tied to the job while I had a mortgage to pay.