Self-sterilizing article and its preparation

Claim 1

THE METHOD FOR TREATING AN ARTICLE TO RENDER IT ANTISEPTIC AND SELF-STERILIZING WHICH INCLUDES THE STEPS OF: CONTACTING THE ARTICLE WITH A FIRST AQUEOUS SOLUTION COMPRISING A WATER-SOLUBLE SILVER SALT AND A FIRST WATER-SOLUBLE SALT OF A METAL OTHER THAN SILVER; SUBSEQUENTLY CONTACTING THE THUS TREATED ARTICLE WITH A SECOND AQUEOUS SOLUTION COMPRISING A SECOND WATER-SOLUBLE SALT, THE ANION OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF HALIDES AND PHOSPHATES, AND A THIRD WATERSOLUBLE SALT, THE ANION OF WHICH FORMS A WATERINSOLUBLE COMPOUND WITH THE METAL CATION OF THE FIRST WATER-SOLUBLE SALT, AND A WATER-SOLUBLE BASIC NITROGEN COMPOUND, WHEREBY A WATER-INSOLUBLE SILVER SALT AND A WATER-INSOLUBLE METAL COMPOUND ARE FORMED, SAID METAL COMPOUND FUNCTIONING AS AN EFFECTIVE STABILIZER OF THE SILVER SALT AGAINST THE EFFECT OF LIGHT NORMALLY TENDING TO DISCOLOR SAID SILVER SALT; AND THEN REMOVING THE BASIC NITROGEN COMPOUND FROM SAID ARTICLE.

Claim 2

THE METHOD FOR TREATING AN ARTICLE TO RENDER IT ANTISEPTIC AND SELF-STERILIZING WHICH INCLUDES THE STEPS OF: CONTACTING THE ARTICLE WITH A FIRST AQUEOUS SOLUTION COMPRISING A WATER-SOLUBLE SILVER SALT AND A FIRST WATER-SOLUBLE SALT OF A METAL OTHER THAN SILVER; SUBSEQUENTLY CONTACTING THE THUS TREATED ARTICLE WITH A SECOND AQUEOUS SOLUTION COMPRISING A SECOND WATER-SOLUBLE SALT, THE ANION OF WHICH IS SELECTED FROM THE GROUP CONSISTING OF HALIDES AND PHOSPHATES, AND A THIRD WATERSOLUBLE SALT, THE ANION OF WHICH FORMS A WATERINSOLUBLE COMPOUND WITH THE METAL CATION OF THE FIRST WATER-SOLUBLE SALT, AND A WATER-SOLUBLE BASIC NITROGEN COMPOUND, WHEREBY A WATER-INSOLUBLE SILVER SALT AND A WATER-INSOLUBLE METAL COMPOUND ARE FORMED, SAID METAL COMPOUND FUNCTIONING AS AN EFFECTIVE STABILIZER OF THE SILVER SALT AGAINST THE EFFECT OF LIGHT NORMALLY TENDING TO DISCOLOR SAID SILVER SALT; AND THEN REMOVING THE BASIC NITROGEN COMPOUND FROM SAID ARTICLE.