FIELD: ultrasonic technology.
SUBSTANCE: strong hermetic sealing has some number of alternating ultrasonic point connections disposed close to each other. At least two layers of material, for example, of non-woven linen laminated onto waterproof film can be held together by means of those point connections. Point connections can form pattern in such a manner that material which shifts during technological process of binding blocks passage of any fluid through point connections.
EFFECT: improved efficiency.
27 cl, 1 ex, 1 tbl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FINGER-STALL | 2001 |
|
RU2264146C2 |
| STRUCTURE, SETTING AND TEXTURE OF COILED ELASTOMERIC LAYERED MATERIAL | 2018 |
|
RU2749394C1 |
| PACKING OF ABSORBENT ARTICLES USING MOLDED NON-WOVEN MATERIAL | 2016 |
|
RU2696333C1 |
| FORMING BELT CONVEYOR FOR FORMED NON-WOVEN MATERIAL | 2016 |
|
RU2673772C1 |
| NONWOVEN STRETCH FILM WITH APERTURES HAVING IMPROVED BONDING CHARACTERISTICS | 2014 |
|
RU2647732C1 |
| BREATHING FILM LAMINATE WITH FILLER | 1998 |
|
RU2192512C2 |
| METHOD FOR MAKING ABSORBENT ARTICLES WITH ELONGATED LEG BANDS | 2017 |
|
RU2709774C1 |
| COMPOSITE MATERIAL RESILIENT IN ONE DIRECTION AND STRETCHABLE IN ANOTHER DIRECTION | 2001 |
|
RU2270758C2 |
| LAMINATED MATERIAL USED AS A FASTENER LOOP COMPONENT | 1998 |
|
RU2196047C2 |
| SUCTION MATERIAL HAVING EXCELLENT SUCTION AND CAPILLARY SUCTION PROPERTIES | 2001 |
|
RU2279267C2 |
