Recycled pulp paper refers to the large spindle paper produced from waste paper. Its main detection performance is as follows:

Strength and tensile properties: to ensure that it is not easy to crack or deformation during use. Its strength and tensile properties can be evaluated by tensile test and tear test.

Surface smoothness: to ensure that it will not appear in the printing, coating and other processes such as paper lag or unstable quality problems. Surface smoothness can be assessed by surface smoothness test.

Absorbent performance: in order to absorb ink or paint in the process of printing and painting. Water absorption performance can be assessed by water absorption tests.

Rupture resistance: to ensure that it is not easy to break or damage during transportation and use. Its resistance to breaking can be assessed by a break resistance test.

What is recycled pulp large spindle paper and what properties should be tested?

Gloss: In order to obtain better visual effects in printing, packaging and other fields. Glossiness can be assessed by a glossiness test.

Environmental protection: will not cause pollution to the environment. Environmental performance can be evaluated by environmental test.

Adhesive properties: so that it is not easy to fall off or peel off during use. The adhesion performance can be evaluated by the adhesion performance test.

Degradability: to reduce environmental pollution and waste of resources. Biodegradability can be assessed through biodegradability tests.

Paper thickness: The thickness of recycled pulp large-spindle paper should meet the requirements of the product, which can be evaluated by paper thickness test.

Paper moisture content: The moisture content of recycled pulp spindle paper should meet the requirements of the product, which can be evaluated by paper moisture content test.

What is recycled pulp large spindle paper and what properties should be tested?

Detection method
The test method and standard should be adopted according to different performance indexes. The following are some common methods of testing the performance of recycled pulp large-spindle paper:

Strength and tensile properties: Tensile and tensile properties can be evaluated using test methods such as tensile and tear tests. Tensile test generally adopts multifunctional testing machine, with longitudinal and transverse as the main testing directions. The tearing test evaluates the strength of the paper by measuring its tearing force under certain conditions.

Surface smoothness: The surface smoothness can be assessed using a surface smoothness tester, which evaluates the surface smoothness of a paper by measuring its roughness index.

Water absorption performance: The water absorption performance can be assessed using an water absorption tester, which measures the water absorption capacity of the paper to assess its water absorption performance.

Rupture resistance: It can be assessed by using a rupture tester, which measures the breaking force of paper under certain conditions.

Glossiness: Glossiness can be assessed using a glossiness tester, which measures the intensity of light reflected from the paper to assess its glossiness.

Environmental protection: Its environmental protection performance can be evaluated by detecting heavy metals and harmful substances, such as X-ray fluorescence spectrometer, inductively coupled plasma mass spectrometer and other instruments to detect the samples.

Bond properties: Bond properties can be evaluated using a peel strength tester, which measures the bond strength between the paper and the bond material.

Biodegradability: Biodegradability can be assessed using methods such as soil burial tests, which measure the rate of degradation and changes in mass of paper by burying it in the soil.

Paper thickness: The thickness of the paper can be measured using instruments such as feel thickness meter and electronic thickness meter for evaluation.

Paper moisture content: Paper moisture content can be measured using a paper moisture content tester for evaluation purposes.

What is recycled pulp large spindle paper and what properties should be tested?

Matters needing attention
In the detection of recycled pulp large-spindle paper, the following points need to be noted:

Sample selection: Samples should be randomly selected from well-represented batches for testing, and care should be taken in sample storage and handling to avoid affecting test results.

Control of test conditions: Test conditions should be strictly controlled, including temperature, humidity, light and other factors, to avoid the impact of these factors on test results.

Calibration of test equipment: Test equipment needs to be calibrated regularly to ensure its accuracy and reliability.

Data processing and analysis: Statistical and analysis of test data is required to determine its scope of conformity and assess its product quality.

In conclusion, the test method and standard should be selected according to different performance indexes and carried out under strict experimental conditions to ensure product quality and safety.