Tamper-evident slider packages with multiple tear points

A method of making a flexible package comprising:

• (a) providing a package surrounding wall defining a package interior and having a mouth;
• the mouth providing access to the package interior;
• (b) providing a reclosable zipper for selective opening and closing of the mouth;
• the zipper including:
• (i) a first closure profile, the first closure profile having a sealing flange located at a first end of the first closure profile and a distal flange located at a second end of the first closure profile;
• (ii) a second closure profile, the second closure profile having a sealing flange located at a first end of the second closure profile and a distal flange located at a second end of the second closure profile;
• (iii) a web arrangement joining the first closure profile distal flange and the second closure profile distal flange;
• the web arrangement including a plurality of tear regions radially spaced across the web arrangement;
• each of the tear regions having a first shear strength and being a material different than the remaining portions of the web arrangement;
• (iv) a slider device operably mounted onto the reclosable zipper, the slider device constructed and arranged for interlocking the first closure profile with the second closure profile when the slider device is moved in a first direction, and for disengaging the first closure profile from the second closure profile when the slider device is moved in a second opposite direction;
• (c) joining the first closure profile scaling flange and the second closure profile sealing flange to the packaging surrounding wall at the mouth, and maintaining a portion of the web arrangement unsealed to the surrounding wall;
• and
• (d) heating at least a part of the position of the web arrangement unsealed to the surrounding wall to reduce the first shear strength of the tear regions to a lower second shear strength.