The union representing striking employes of Raleigh Stores Inc. yesterday filed unfair labor relations charges against the clothing chain with the federal government.

Filing the charges in connection with the strike, which is now 12 days old, comes as union officials said they would attempt to call on thousands of union members across the metropolitan area to boycott the 11-store chain.

Meanwhile, an official of the clothing store chain said the company, as of Monday, had hired 64 new sales personnel to replace striking employes and had written to the Raleigh's work force to ask that they return to work.

The charges, filed with the National Labor Relations Board, accuse Raleigh's of "surface bargaining" in the negotiations with the union, the United Food and Commercial Workers, Local 400.

The union said the company had violated labor relations law by "refusing to bargain in good faith." Union officials and members have repeatedly said that the company, in refusing to alter the terms of its origianl contract proposal, effectively had refused to negotiate.

In addition, Local 4000 said the chain violated federal law by "photographing and or causing its agents to photograph" picketing union members in front of the chain's stores.

In connection with that charge, the union asked the NLRB to seek an injunction from a federal court to block the company from continuing the photographing practice.

Finally, the union said the company was in violation of fair labor laws by "offering benefits to striking employes to return to work, by offering to forward resignations to the union by the threatening employes if they did not return to work."

A spokesman for Raleigh's denied the charges.

In cases of this kind, the board normally investigates the charges and a regional official of the agency decides whether there is reasonable cause to issue a complaint against the targeted firm. If there is such cause, a hearing before an administrative law judge would then be scheduled.

The union further intensified its battle with Raleighs by announcing the plans to attempt the boycott. "It's pretty obvious that they're not just in an economic strike," said Thomas McNutt, president of Local 400. "It's plain old union busting."