Composite paper yarn and preparation process thereof

Abstract

A composite paper yarn and a preparation process thereof, which relate to the field of textile technology; comprising the following steps: 1) cutting base paper into strips to obtain paper yarn A; 2) placing the paper yarn A in an antiseptic solution, taking it out and letting it stand, and then placing it in a wet strength solution, taking it out and drying it to obtain paper yarn B; 3) placing the paper yarn B in a softening solution, taking it out and drying it to obtain paper yarn C; 4) twisting or coating the paper yarn C with organic fibers under atomized humidification to obtain composite paper yarn. In the preparation process of the composite paper yarn of the present invention, the paper yarn is treated with a wet strength solution and a softening solution in turn to improve the tensile strength and softness, and is not easy to break, thereby reducing the difficulty of subsequent processing; then, under the condition of atomized humidification, the paper yarn becomes softer, can be better combined with the organic fiber for twisting, and is not easy to break, thereby improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a composite paper yarn and a preparation process thereof. Background Art

[0002] Paper yarn is made from plant fibers. As a sustainable, natural, environmentally friendly and healthy textile material, it has the characteristics of good dyeing properties, good air permeability, strong water absorption, environmental protection and easy degradation. It has great development prospects in the field of textile materials.

[0003] Existing paper yarns generally have the problems of low strength and poor softness, and the effect of finished garments is unsatisfactory. At the same time, the processing difficulty is increased, especially for ultra-fine paper yarns. During the twisting process, the paper yarn is easily broken under the action of tension. Too many thread ends will affect the appearance of the finished product, and reducing the twisting tension will affect the processing efficiency and twisting effect. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the objects of the present invention is to provide a preparation process of a composite paper yarn, which can improve the tensile strength and softness of the yarn, has a simple processing technology and high production efficiency.

[0005] The second object of the present invention is to provide a composite paper yarn which has good air permeability, strong water absorption, and is environmentally friendly and easily degradable.

[0006] One of the purposes of the present invention is achieved by the following technical solution:

[0007] A preparation process of a composite paper yarn comprises the following steps:

[0008] 1) Cutting the base paper into strips to obtain paper yarn A;

[0009] 2) placing the paper yarn A in an antiseptic solution, taking it out and letting it stand, then placing it in a wet strength solution, taking it out and drying it, to obtain paper yarn B;

[0010] 3) placing the paper yarn B in a softening solution, taking it out and drying it, thereby obtaining paper yarn C;

[0011] 4) Twisting or coating the paper yarn C and the organic fiber under atomized and humidified state to obtain a composite paper yarn.

[0012] Furthermore, in step 1), the width of the paper yarn A is 0.15-8 mm, preferably 0.15-0.5 mm.

[0013] Furthermore, in step 2), specifically: the paper yarn A is placed in an antiseptic solution and soaked for 40-90 minutes at a soaking temperature of 20-60°C, taken out and allowed to stand, and then placed in a wet strength solution and soaked for 10-15 hours at a soaking temperature of 20-60°C, taken out and air-dried to a dryness of 75-85%, to obtain paper yarn B.

[0014] Furthermore, the concentration of the preservative in the antiseptic solution is 0.2-0.4%; the concentration of the wet strength agent in the wet strength solution is 10-20%, preferably PAE wet strength agent.

[0015] Furthermore, in step 3), the paper yarn B is placed in a softening solution and soaked for 1-3 hours at a soaking temperature of 20-40° C., and then taken out and air-dried to a dryness of 75-85% to obtain paper yarn C.

[0016] Furthermore, the softener concentration in the softening solution is 4-6%. The softener is preferably a betaine surfactant and / or an organosilicon surfactant.

[0017] Furthermore, in step 4), the relative humidity of the atomized humidification state is 110-120%, and the twist degree of the twisting is 80-800 twists.

[0018] Furthermore, the organic fiber is at least one of rayon, cotton fiber, water-soluble yarn and hot-melt yarn.

[0019] Furthermore, the yarn count of the rayon is 10-80s or the denier is 20-600D; the yarn count of the cotton fiber is 10-80s; the yarn count of the water-soluble yarn is 20-80s or the denier is 20-600D; the denier of the hot-melt yarn is 20-600D.

[0020] The second object of the present invention is achieved by adopting the following technical solution:

[0021] A composite paper yarn is made by the composite paper yarn preparation process.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The invention discloses a preparation process of a composite paper yarn. The paper yarn is sequentially treated with a wet strength solution and a softening solution, so that the molecular chains in the paper yarn are prone to relative movement under the action of stress, thereby improving the tensile strength and softness, making it less likely to break, and reducing the difficulty of subsequent processing; then, under the condition of atomization and humidification, the paper yarn becomes softer, can be better combined with organic fibers for twisting, is less likely to break, and has high production efficiency.

[0024] The composite paper yarn of the invention has good air permeability, strong water absorption, and is environmentally friendly and easily degradable. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] Example 1

[0027] A preparation process of a composite paper yarn comprises the following steps:

[0028] 1) Cutting the base paper into strips to obtain paper yarn A; the width of the paper yarn A is 0.15 mm;

[0029] 2) placing the paper yarn A in an antiseptic solution for 60 minutes at a soaking temperature of 40° C., taking it out and letting it stand, then placing it in a wet strength solution for 12 hours at a soaking temperature of 40° C., taking it out and air-drying it to a dryness of 80%, to obtain paper yarn B; the concentration of the preservative in the antiseptic solution is 0.3%; the concentration of the wet strength agent in the wet strength solution is 15%;

[0030] 3) placing the paper yarn B in a softening solution and soaking it for 2 hours at a soaking temperature of 30° C., taking it out and air-drying it until the dryness is 80%, thereby obtaining paper yarn C; the concentration of the softener in the softening solution is 5%;

[0031] 4) twisting the paper yarn C and the organic fiber in an atomized humidification state to obtain a composite paper yarn; the relative humidity in the atomized humidification state is 110%, and the twisting degree is 300 twists;

[0032] Furthermore, the organic fiber is rayon; the yarn count of the rayon is 80s.

[0033] Example 2

[0034] A preparation process of a composite paper yarn comprises the following steps:

[0035] 1) Cutting the base paper into strips to obtain paper yarn A; the width of the paper yarn A is 0.5 mm;

[0036] 2) placing the paper yarn A in an antiseptic solution for 40 minutes at a soaking temperature of 60° C., taking it out and letting it stand, then placing it in a wet strength solution for 10 hours at a soaking temperature of 60° C., taking it out and air-drying it to a dryness of 80%, to obtain paper yarn B; the concentration of the preservative in the antiseptic solution is 0.2%; the concentration of the wet strength agent in the wet strength solution is 10%;

[0037] 3) placing the paper yarn B in a softening solution and soaking it for 1 hour at a soaking temperature of 40° C., taking it out and air-drying it until the dryness is 80%, thereby obtaining paper yarn C; the concentration of the softener in the softening solution is 4%;

[0038] 4) twisting the paper yarn C and the organic fiber in an atomized humidification state to obtain a composite paper yarn; the relative humidity in the atomized humidification state is 110%, and the twist degree of the twisting is 80 twists;

[0039] Furthermore, the organic fiber is cotton fiber; the yarn count of the cotton fiber is 80s.

[0040] Example 3

[0041] A preparation process of a composite paper yarn comprises the following steps:

[0042] 1) Cutting the base paper into strips to obtain paper yarn A; the width of the paper yarn A is 8 mm;

[0043] 2) placing the paper yarn A in an antiseptic solution for 90 minutes at a soaking temperature of 20° C., taking it out and letting it stand, then placing it in a wet strength solution for 15 hours at a soaking temperature of 20° C., taking it out and air-drying it to a dryness of 80%, to obtain paper yarn B; the concentration of the preservative in the antiseptic solution is 0.4%; the concentration of the wet strength agent in the wet strength solution is 20%;

[0044] 3) soaking the paper yarn B in a softening solution for 3 hours at a soaking temperature of 20° C., taking it out and air-drying it to a dryness of 80%, thereby obtaining paper yarn C; the softener concentration in the softening solution is 6%;

[0045] 4) twisting the paper yarn C and the organic fiber in an atomized humidification state to obtain a composite paper yarn; the relative humidity in the atomized humidification state is 120%, and the twisting degree is 800 twists;

[0046] Furthermore, the organic fiber is rayon and hot-melt yarn in a 1:1 ratio; the denier of the rayon is 600D; and the denier of the hot-melt yarn is 600D.

[0047] Comparative Example 1

[0048] A preparation process of a composite paper yarn comprises the following steps:

[0049] 1) Cutting the base paper into strips to obtain paper yarn A; the width of the paper yarn A is 0.15 mm;

[0050] 2) placing the paper yarn A in a softening solution and soaking it for 2 hours at a soaking temperature of 30° C., taking it out and air-drying it until the dryness is 80%, thereby obtaining paper yarn B; the concentration of the softener in the softening solution is 5%;

[0051] 3) placing the paper yarn B in an antiseptic solution for 60 minutes at a soaking temperature of 40° C., taking it out and letting it stand, then placing it in a wet strength solution for 12 hours at a soaking temperature of 40° C., taking it out and air-drying it to a dryness of 80%, to obtain paper yarn C; the concentration of the preservative in the antiseptic solution is 0.3%; the concentration of the wet strength agent in the wet strength solution is 15%;

[0052] 4) twisting or coating the paper yarn C and the organic fiber in an atomized humidification state to obtain a composite paper yarn; the relative humidity in the atomized humidification state is 110%, and the twisting degree is 300 twists;

[0053] Furthermore, the organic fiber is rayon; the yarn count of the rayon is 80s.

[0054] Performance Testing

[0055] 1. The softness performance of the composite paper yarns of Examples 1-3 and Comparative Example 1 was scored, where 0 means the yarn is very hard and difficult to bend; 10 means it is very soft. The results are shown in Table 1.

[0056] Table 1

[0057] project Example 1 Example 2 Example 3 Comparative Example 1 Softness 8 8 7 5

[0058] Referring to Table 1, the composite paper yarns of Examples 1-3 have good softness, while the yarn in Comparative Example 1 has poor softness.

[0059] 2. The composite paper yarns of Example 1 and Comparative Example 1 were subjected to tensile performance tests.

[0060] Test method: The composite paper yarn samples were tested using an electronic fiber strength tester; the stretching distance was 20 mm; the stretching speed was 20 mm / min; the pre-tension was 0.05 cN; 5 samples were taken from each group for testing, and the average value was calculated. The results are shown in Table 2.

[0061] Table 2

[0062] project Example 1 Comparative Example 1 Tensile strength (cN / dtex) 3.24 2.85

[0063] Referring to Table 2, the preparation process of Comparative Example 1 is the swap of step 2) and step 3) in Example 1, and its tensile strength is significantly reduced; this proves that the preparation process of a composite paper yarn of the present invention can effectively improve the tensile strength and softness, is not easy to break, and reduces the difficulty of subsequent processing.

[0064] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A process for preparing a composite paper yarn, characterized in that: Here are the steps: 1) Cutting the base paper into strips to obtain paper yarn A; 2) soaking the paper yarn A in an antiseptic solution for 40-90 minutes at a soaking temperature of 20-60° C., taking it out and letting it stand, then soaking it in a wet strength solution for 10-15 hours at a soaking temperature of 20-60° C., taking it out and drying it to a dryness of 75-85%, to obtain paper yarn B; 3) soaking the paper yarn B in a softening solution for 1-3 hours at a soaking temperature of 20-40° C., taking it out and air-drying it to a dryness of 75-85%, thereby obtaining paper yarn C; 4) Twisting or coating the paper yarn C and the organic fiber in an atomized humidified state, wherein the relative humidity in the atomized humidified state is 110-120% and the twist degree of twisting is 80-800 twists; obtaining a composite paper yarn.

2. A process for preparing a composite paper yarn according to claim 1, characterized in that: In step 1), the width of the paper yarn A is 0.15-8 mm.

3. A process for preparing a composite paper yarn according to claim 1, characterized in that: The concentration of the preservative in the antiseptic solution is 0.2-0.4%; the concentration of the wet strength agent in the wet strength solution is 10-20%.

4. A process for preparing a composite paper yarn according to claim 1, characterized in that: The concentration of the softener in the softening solution is 4-6%.

5. A process for preparing a composite paper yarn according to claim 1, characterized in that: The organic fiber is at least one of rayon, cotton fiber, water-soluble yarn and hot-melt yarn.

6. A process for preparing a composite paper yarn according to claim 5, characterized in that: The yarn count of the rayon is 10-80s or the denier is 20-600D; the yarn count of the cotton fiber is 10-80s; the yarn count of the water-soluble yarn is 20-80s or the denier is 20-600D; the denier of the hot-melt yarn is 20-600D.

7. A composite paper yarn, characterized in that: The composite paper yarn is made by the preparation process of any one of claims 1 to 6.