Test method for tensile strength of tobaccos reconstituted by papermaking method
A technology for reconstituted tobacco leaves and tensile strength, which is applied in the direction of applying stable tension/pressure to test the strength of materials, and can solve problems such as no public reports
Active Publication Date: 2014-03-12
YUNNAN RES INST OF TOBACCO SCI
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[0005] Through document retrieval, do not see the public report identical with the present invention
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[0031] The method for measuring the tensile strength of reconstituted tobacco leaves by papermaking method of the present invention is carried out according to the specific steps described in the summary of the invention.
[0032] 1. The varieties to be tested are different representative samples of uncut papermaking reconstituted tobacco leaves (samples processed abroad entrusted by a domestic enterprise), which are respectively recorded as A1, A2, A3, B1, B2, B3, and C1 , C2 and slit papermaking reconstituted tobacco samples (products of a domestic reconstituted tobacco production enterprise), which are denoted as D1, D2, and D3 respectively.
[0033] 2. Test equipment: KW-3 computer-controlled anti-strength testing machine (Sichuan Changjiang Paper Instrument Co., Ltd.); standard paper cutter (Sichuan Changjiang Paper Instrument Co., Ltd.).
[0034] 3. The results of the tensile strength method, by 7 uncut papermaking method reconstituted tobacco leaf samples, according to ...
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The invention relates to a test method for tensile strength of tobaccos reconstituted by a papermaking method, belonging to the technical field of testing of physical indexes of reconstituted tobaccos. The test method comprises the following steps of: preparing samples: preparing test samples from each uncut sample along the longitudinal direction and the horizontal direction of a paper web, testing the samples, cutting 10 rectangular long strips being 200mm*15mm, cutting rectangular long strips being 40mm*15mm, and selecting 30 complete long strips from one sample; correcting and adjusting an instrument; testing the tensile strength: adjusting the extension rate of the instrument to be 50mm / min plus or minus 0.5mm / min when the instrument is used for testing the tensile strength of the large samples, and adjusting the extension rate of the instrument to be 200mm / min plus or minus 0.5mm / min when the instrument is used for testing the tensile strength of the small samples; and calculating according to test results of the tensile strength, wherein the calculation result reserves two decimal fractions. The method disclosed by the invention has the advantages of safety, simplicity, convenience, accuracy and precision, and the tested indexes of the tobaccos reconstituted by the papermaking method can represent the physical properties of the tobaccos reconstituted by the papermaking method.
Description
Technical field: [0001] The invention relates to a method for measuring the tensile strength of reconstituted tobacco leaves by a papermaking method, and belongs to the field of measuring physical indexes of reconstituted tobacco leaves. Background technique: [0002] Tensile strength refers to the maximum tension that a sample of unit width can withstand before breaking under the conditions specified in the test method, expressed in kN / m. [0003] Papermaking reconstituted tobacco leaves should have a certain tensile strength. Because it needs to meet the coating process in the later stage, the film base is required to have a certain tensile strength. However, the higher the tensile strength is, the better. Too high a tensile strength It is not conducive to the subsequent shredding process, so it only needs to meet the requirements of paper machine copying. [0004] At present, there are few domestic studies on the determination of tensile strength of reconstituted tobacco...
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IPC IPC(8): G01N3/08
Inventor 王浩雅向海英刘晶王建邱晔张群芳马金晶
Owner YUNNAN RES INST OF TOBACCO SCI