Highly water absorbent sheet
A super absorbent resin, super absorbent technology, applied in chemical instruments and methods, absorbent pads, non-woven fabrics, etc., can solve the problem of increasing solid SAP/pulp, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0157] 1. Preparation of Specimen
[0158] 1) The size of the sample
[0159] As a basic size, a sample is cut into 10 cm x 80 cm.
[0160] The preparation of the width of the repeating unit as a sample depends on the kind of sample. The width is about 10 to 30 cm.
[0161] 2) Pre-drying
[0162] In order to keep the water content constant during the judging, pre-drying was performed until the water content became 10 wt% or less. However, in order to avoid degradation of the specimen, the drying temperature was kept at 60°C or lower.
[0163] 3) Natural aging
[0164] The samples were allowed to be kept at such a temperature and humidity for at least 12 hours that the water content was 10 wt%. The coated surface of the test specimen is exposed in a room or space of normal temperature and humidity.
[0165] 2. Use a tester to judge the firmness of SAP particles
[0166] 1) Measurement of the weight of the sample (using an electronic balance with a sensitivity of 1 mg) ...
example 1
[0185] Preparation of Composite Sheets
[0186] In the procedure described below, a SAP composite sheet having a SAP layer surface-treated with a hot-melt adhesive was prepared.
[0187] Preparation of Loose Nonwoven Substrates
[0188] Prepare a fiber web by folding a 20g / m 2 Viscose fiber (1.5×42mm) carded web (P layer), 30g / m 2 PET fiber (6d×51mm) carded net (Q layer), and a 20g / m 2 A sheet of tissue (R layer) of N pulp was arranged in the order of P layer, Q layer and R layer and then needled from one side of the R layer. In this fiber web, fibers are entangled between the P layer and the Q layer and the fibers of the R layer are mixed into the Q layer. The apparent specific gravity is 0.07 and is in the form of a loose nonwoven.
[0189] Manufacturing Composite Materials by Joining SAP
[0190] SAP in the form of flakes (manufactured by Sanyo Chemical Co., Ltd. under the trade name of Sunwet IM-500) was used. When the substrate was vibrated on the vibrating plate, ...
example 2
[0201] Preparation of Composite Sheets
[0202] A SAP composite sheet having a SAP layer, which was surface treated with a hot melt adhesive, was prepared in the following procedure.
[0203] Preparation of bulky nonwoven substrate
[0204] Prepare a dry spun non-woven fabric by blowing into a high-pressure water flow and making it entangled in a 35g / m 2 A carded web consisting of 50 wt% viscose rayon fibers (1.5d×42mm) and 50 wt% PE / PET sheath / core bicomponent fibers (3d×51mm).
[0205] rely on as image 3 The shown device with heated and cooled rolls processes the dry spun nonwoven. The load is 0.1g / m 2 The obtained thickness is 2.5mm and the apparent specific gravity is 0.03g / cm 3 of non-woven fabrics.
[0206] Manufacturing Composite Materials by Joining SAP
[0207] With micronized ethanol and SAP (manufactured by Mitsubishi Chemical Co., Ltd., trade name is "Aquapearl 211 D") diluted - 4 wt% MFC water dispersion gel (S-MFC) (by Tokushu PaperMgf.Co , Ltd), to prep...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Apparent specific gravity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More