CN106930002B - A kind of natural bamboo puree non-woven fabric and preparation method thereof - Google Patents

Abstract

The invention discloses a non-woven fabric of natural bamboo puree and a preparation method thereof. The bamboo puree of natural natural color, which is harmless and environmentally friendly, is used as a raw material to be mixed with other textile staple fibers, and the bamboo puree and other textile staple fibers are adhered or bonded together. , to re-establish a non-woven fabric with a three-dimensional mesh woven structure. The non-woven fabric has sufficient width, length, and weaving tightness and thickness of each part like a textile fabric, and reaches the strength indicators of woven fabrics. At the same time, the damage to the bamboo fibrils is reduced, which is beneficial to protect the length and morphological structure of the bamboo fibrils, preserve the "bamboo kun" from damage to the greatest extent, and has natural antibacterial, anti-mite and deodorant functions.

Description

A kind of natural bamboo puree non-woven fabric and preparation method thereof

Technical field:

The invention relates to the technical field of non-woven fabrics, in particular to a non-woven fabric of natural bamboo puree and a preparation method thereof.

Background technique:

Non-woven fabric is a kind of fabric that does not require spinning or weaving, but only by orienting or randomly arranging textile staple fibers or filaments to form a web structure, and then reinforced by mechanical, thermal bonding or chemical methods. Non-woven fabric is a new type of fiber product with soft, breathable and flat structure formed directly by high polymer chips, short fibers or filaments through various web forming methods and consolidation technologies. Its production process is short and the production speed is fast. , high output, low cost, wide use, and many sources of raw materials.

Spunbond and spunlace nonwoven production processes have developed rapidly and are two commonly used process methods in nonwoven manufacturing. Spunbond nonwoven production technology is also known as polymer spinning. The principle is that in the process of polymer spinning, continuous filament fibers are laid into a web, and the web is entangled into a non-woven fabric by hot rolling or needle punching reinforcement.

Spunlace nonwovens are also known as spunlace nonwovens. The staple fibers are opened and combed to make a fiber web, and then high-pressure water is used to generate numerous extremely fine water needles to shoot at the fiber web, so that the fibers are subjected to different conditions. Under the action of the directional jet, they are entangled with each other, so that the fiber web is reinforced and entangled into a non-woven fabric.

Although the above two methods can produce non-woven fabrics, they all have certain defects. , high cost, with the continuous development of the market, people's demand and quality requirements for non-woven fabrics are getting higher and higher, the non-woven fabrics produced by the above two methods can no longer meet people's needs.

Invention content:

The purpose of the present invention is to provide a kind of natural bamboo puree non-woven fabric and preparation method thereof, utilize natural natural color, harmless and environmentally friendly bamboo puree as raw material to be mixed with other textile staple fibers, and the bamboo puree and other textile staple fibers are adhered or bonded Together, a non-woven fabric with a three-dimensional mesh woven structure is re-established. The non-woven fabric has sufficient width, length, and weaving tightness and thickness of each part like a textile fabric, and achieves the strength of woven fabrics. At the same time, it reduces the damage to the bamboo fibrils, which is beneficial to protect the length and morphological structure of the bamboo fibrils, preserve the "bamboo kun" from damage to the greatest extent, and has natural antibacterial, anti-mite and deodorant functions.

The present invention is achieved through the following technical solutions:

A natural bamboo puree non-woven fabric, the non-woven fabric is composed of 1-99% by weight of natural bamboo puree and 1-99% by weight of other textile staple fibers, and the natural bamboo puree and other textile staple fibers are adhered, Bonded together to form a three-dimensional net-like weaving structure; the natural bamboo puree is made of bamboo as raw material, made by a special pulping method, and does not contain harmful substances and any chemical additives. 100% plant natural natural pulp , the bamboo material is selected from any one of Phyllostachys pubescens, Nanzhu, Cizhu, etc.; the other textile staple fibers are selected from at least one of natural fibers, chemical fibers, and man-made fibers; the natural bamboo puree is special The pulping method includes the following steps:

1), raw material preparation: bamboo slices are grown 20-60mm, wide 10-30mm and washed with water to obtain washed bamboo chips;

2), cooking: put the washed bamboo chips into a cooking pot at 150 ° C and cook for 80-180min to obtain slurry;

3), washing: use washing equipment and water to wash the slurry obtained in step 2) to obtain the cleaned slurry;

4), slag removal: pump the cleaned slurry to the slag removal system for slag removal;

5), beating: the pulp after washing and purification is transported to beating equipment to be beaten into bamboo puree; the beating degree is greater than 55゜SR

The preparation method of described natural bamboo pulp non-woven fabric, comprises the following steps:

1), compounding: mix natural bamboo puree with other textile staple fibers to obtain semi-finished products of bamboo pulp paper;

2), reinforcement: the bamboo pulp paper semi-finished product obtained in step 1) adopts existing nonwoven technology such as mechanical consolidation, thermal bonding, self-bonding, etc. to reinforce;

3) Drying: use a 30-60 degree dryer to dry to obtain the target product.

Further, the present invention also protects a kind of natural bamboo pulp non-woven fabric, and the natural bamboo pulp non-woven fabric is composed of 1-99% by weight of natural bamboo puree and 1-99% by weight of other textile staple fibers, Also include woven fabric or non-woven fabric, and the preparation method of the natural bamboo pulp non-woven fabric is as follows:

1. Mixing: Mix natural bamboo puree with other textile staple fibers to obtain semi-finished bamboo pulp paper;

2. Compounding: compounding the semi-finished bamboo pulp paper obtained in step 1 with existing various types of woven fabrics or non-woven fabrics;

3. Reinforcement: Reinforce the product obtained in step 2 by using existing non-woven fabric technologies such as mechanical consolidation, thermal bonding, self-adhesion, etc.;

4. Drying: use a 30-60 degree dryer to dry to obtain the target product.

The present invention also protects the application of the natural bamboo pulp non-woven fabric, and the natural bamboo pulp non-woven fabric is used as an inner surface layer in medical and health care, home decoration, clothing, industry, agriculture and others, and is described as follows:

(1) Medical and health care: surgical gowns, protective clothing, masks, shoe covers, sterile wraps, bandages, dressing gauze, blood and kidney dialysis filter materials, wipes, wet wipes, soft towel rolls, beauty supplies, sanitary napkins , Sanitary pads, diapers and disposable sanitary cloth.

(2) Home decoration: carpets, wall coverings, furniture fabrics, curtains, sheets, bedspreads, tablecloths, napkins, civilian rags, shopping bags, etc.

(3) Clothing: lining base cloth, clothing and gloves thermal insulation materials, adhesive lining, shoulder pads, flakes, shaped cotton, various synthetic leather base cloth, etc.

(4) Industrial category: geotextiles used for reinforcement, reinforcement, composite, anti-seepage, drainage and separation; base materials for roofing waterproofing membranes and asphalt shingles; reinforcing materials, polishing materials, insulating materials, thermal insulation and sound insulation materials; Gas, liquid and solid filter materials; cement packaging bags, covering cloth, etc.

(5) Agriculture: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, mulch bag, capillary mat, etc.

(6) Others: sleeping bags, tents, space cotton, oil-absorbing blankets, cigarette filters, tea bags, shoe materials, etc.

The beneficial effects of the present invention are as follows:

Compared with the existing non-woven fabric, the non-woven fabric of the present invention has the following advantages:

(1) Using pure natural natural bamboo puree, and other textile staple fibers, the fibers woven together are adhered or bonded together, and the re-established three-dimensional mesh weaving structure forms a high mechanical weaving feature, which can achieve woven fabrics. The strength indicators of the cloth, and the production process does not need to add any chemical additives required by the existing non-woven fabric technology, such as alkali substances, bleaching agents, optical brighteners, and zero chemical additives. More environmentally friendly, no pollution to the environment, no harm to the human body.

(2) Bamboo fiber contains an antibacterial substance called "Bamboo Kun", which has the medicinal properties of natural antibacterial, anti-mite and anti-odor. The invention reduces the procedures of opening, carding, and net laying in the production of traditional non-woven fabrics, simplifies the production process, reduces the production cost, reduces the damage to the bamboo fibrils, and is beneficial to protect the length and morphological structure of the bamboo fibrils. Keeping the "Bamboo Kun" to the greatest extent from damage is a level that various non-woven fabrics on the market cannot achieve.

(3) The preparation method of the natural bamboo puree non-woven fabric of the present invention makes full use of bamboo pulp and short fibers to fully mix, and the obtained bamboo pulp paper semi-finished product can be combined with existing various types of woven fabrics or non-woven fabrics according to different product characteristics and requirements. The woven fabric is compounded to make the product structure more complete and to highlight the functionality and practicability of the product.

Description of drawings:

FIG. 1 is the fiber morphology of the natural bamboo pulp non-woven fabric of the sample of baby wet wipes described in Example 4 after dyeing with Graff "C" dye at 100 and 400 magnifications.

Detailed ways:

The following is a further description of the present invention, rather than a limitation of the present invention.

Embodiment 1: a kind of preparation method of natural bamboo puree

Include the following steps:

1. Preparation of raw materials: slice any kind of bamboo material in moso bamboo, nanzhu, cizhu, etc. with a length of 20-60mm and a width of 10-30mm and wash with water to obtain washed bamboo chips;

2. Cooking: put the washed bamboo chips into a cooking pot at 150°C and cook for 80-180min to obtain slurry;

3. Washing: use washing equipment and water to wash the slurry obtained in step 2 to obtain the washed slurry;

4. Slag removal: pump the cleaned slurry to the slag removal system for slag removal;

5. Beating: transfer the washed and purified pulp to beating equipment to make bamboo puree; the beating degree is greater than 55゜SR.

Embodiment 2: a kind of natural bamboo puree non-woven fabric

A natural bamboo puree non-woven fabric, the non-woven fabric is composed of 1-99% by weight of the natural bamboo puree obtained in Example 1, 1-99% by weight of other textile staple fibers, the natural bamboo puree and other textile fibers. The short fibers are bonded, bonded or compounded together to form a three-dimensional network woven structure; the natural bamboo puree is made from bamboo as raw material and is made by a special pulping process, and does not contain harmful substances and any chemical additives. 100% natural natural color pulp of plants; the other textile staple fibers are selected from at least one of natural fibers, chemical fibers, and man-made fibers.

The preparation method of described natural bamboo pulp non-woven fabric is as follows:

1. Mixing: the natural bamboo puree obtained in Example 1 of 1-99% by weight is mixed with other textile staple fibers of 1-99% by weight to obtain a semi-finished product of bamboo pulp paper;

2. Reinforcement: Reinforce the semi-finished bamboo pulp paper obtained in step 1 by using existing nonwoven technologies such as mechanical consolidation, thermal bonding, self-adhesion, etc.;

3. Drying: use a 30-60 degree dryer to dry to obtain the target product. The weight per unit area of the target product is 40-60 g/m ² . The strength index of described natural bamboo pulp nonwoven is as shown in Table 1:

Table 1

Embodiment 3: a kind of natural bamboo puree non-woven fabric

A natural bamboo puree non-woven fabric, the natural bamboo pulp non-woven fabric is composed of 1-99% by weight of the natural bamboo puree obtained in Example 1, 1-99% by weight of other short fibers for textile use, and also includes a machine tool. Woven fabric or non-woven fabric, the preparation method of described natural bamboo pulp non-woven fabric is as follows:

1, compounding: the natural bamboo puree obtained in Example 1 is compounded with other textile staple fibers to obtain a semi-finished product of bamboo pulp paper;

2. Compounding: According to different product characteristics and requirements, the semi-finished bamboo pulp paper obtained in step 1 is compounded with various existing woven fabrics or non-woven fabrics;

3. Reinforcement: use existing non-woven fabric technologies such as mechanical consolidation, thermal bonding, self-adhesion, etc. for reinforcement;

4. Drying: use a 30-60 degree dryer to dry to obtain the target product. The weight per unit area of the target product is 40-60 g/m ² . The strength index of the natural bamboo pulp non-woven fabric is as follows:

Example 4: Application of natural bamboo pulp nonwovens

Examples 2 and 3 prepare natural bamboo pulp non-woven fabrics as inner surface layers and are applied to masks, wet wipes and sanitary napkins.

The natural bamboo pulp non-woven fabric is used as an inner surface layer for masks, and the bacteriostatic rate against Staphylococcus aureus reaches 92.53, and the bacteriostatic rate for the control group is 16.87; the bacteriostatic rate for Escherichia coli reaches 94.34%, and the control The bacteriostatic rate of the group was 11.9%; the bacteriostatic rate of Candida albicans was 89.48%, and the bacteriostatic rate of the control group was 15.79.

The 20*15cm wet tissue samples obtained by applying the natural bamboo pulp non-woven fabric as the inner surface layer to infant wet wipes were approved by the Guangzhou Industrial Microbiological Testing Center in November 2016 according to the method of GB15979-2002 Disposable Hygiene Products Standard Appendix 4. On the 16th of the month, the antibacterial rate of Staphylococcus aureus reached 78.23%, and the antibacterial rate of the control group was 11.36. The natural bamboo pulp non-woven fabric of the sample baby wipes was observed under 100x and 400x microscopes after dyeing with Graff "C" dye, as shown in Figure 1, most of the fibers were thin and long, with sharp ends and few Excessively curved, with smooth edges without tooth marks, pitted, and mostly rectangular.

Described natural color bamboo pulp non-woven fabric is applied to the sample of sanitary napkin as inner surface layer by Guangdong Province Microbial Analysis and Testing Center, and the result is as follows: described natural color bamboo pulp non-woven fabric is applied to the sample of sanitary napkin as inner surface layer The antibacterial rate of Staphylococcus aureus reached 87.42%, and the bacteriostatic rate of the control group was 14.29%; the bacteriostatic rate of Escherichia coli reached 94.34%, and the bacteriostatic rate of the control group was 11.9%; the antibacterial rate of Candida albicans The bacterial rate was 89.48%, and the bacteriostatic rate of the control group was 15.79.

Claims (5)

1. a non-woven fabric of natural color bamboo puree, is characterized in that, this non-woven fabric is made up of other textile staple fibers of natural bamboo puree of 1～99% weight portion, 1～99% weight portion, natural bamboo puree and other The short fibers for textile are adhered and bonded together to form a three-dimensional network woven structure; the preparation method of the nonwoven fabric of natural bamboo puree includes the following steps: mixing the pure bamboo puree with other textile short fibers to obtain bamboo pulp Paper semi-finished product; the bamboo pulp paper semi-finished product is reinforced using existing non-woven fabric technology, and the existing non-woven fabric technology is selected from any one of mechanical consolidation, thermal bonding, and self-bonding; then 30-60 The target product is obtained by drying with a high-speed dryer to obtain the target product; the natural bamboo puree is made from bamboo as a raw material, and is made by a special pulping method, and does not contain harmful substances and any chemical additives. Described bamboo material is selected from any one in Phyllostachys pubescens, Nanzhu, Cizhu; Described other textile staple fibers are selected from at least one of natural fibers and chemical fibers; The special pulping method of described natural bamboo puree includes the following: step: 1), raw material preparation: bamboo slices are grown 20-60mm, wide 10-30mm and washed with water to obtain washed bamboo chips; 2), cooking: put the washed bamboo chips into a cooking pot at 150 ° C and cook for 80-180min to obtain slurry; 3), washing: use washing equipment and water to wash the slurry obtained in step 2) to obtain the cleaned slurry; 4), slag removal: pump the cleaned slurry to the slag removal system for slag removal; 5), beating: the pulp after washing and purification is transported to beating equipment to be beaten into bamboo puree; the beating degree is greater than 55゜SR. 2. the preparation method of the described bamboo puree non-woven fabric of claim 1, is characterized in that, comprises the following steps: 1), compounding: mix natural bamboo puree with other textile staple fibers to obtain semi-finished products of bamboo pulp paper; 2), reinforcement: the bamboo pulp paper semi-finished product obtained in step 1) is reinforced using existing non-woven fabric technology; the existing non-woven fabric technology is selected from any one in mechanical consolidation, thermal bonding and self-bonding kind; 3) Drying: use a 30-60 degree dryer to dry to obtain the target product. 3. A non-woven fabric of natural bamboo puree, characterized in that, the non-woven fabric of natural bamboo puree comprises 1-99% by weight of the described natural bamboo puree of claim 1, 1-99% by weight of other textiles Short fiber, also includes woven fabric or non-woven fabric, and the preparation method of described natural bamboo puree non-woven fabric is as follows: 1), compounding: mix natural bamboo puree with other textile staple fibers to obtain semi-finished products of bamboo pulp paper; 2), compound: the bamboo pulp paper semi-finished product obtained in step 1 is compounded with existing woven fabric or non-woven fabric; 3), reinforcement: adopt existing non-woven fabric technology to reinforce the product obtained in step 2; described existing non-woven fabric technology is selected from any one in mechanical consolidation, thermal bonding, self-bonding; 4) Drying: use a 30-60 degree dryer to dry to obtain the target product. 4. the application of the described natural color bamboo puree non-woven fabric of claim 1 or 3, is characterized in that, described natural color bamboo puree non-woven fabric is used as inner surface layer in medical care, home decoration, clothing, industry or agriculture. 5. the application of natural bamboo puree non-woven fabric according to claim 4, is characterized in that, described medical hygiene comprises: protective clothing, mask, shoe cover, sterilizing wrapping cloth, bandage, dressing gauze, blood and kidney dialysis Filter materials, wiping cloths, soft towel rolls, beauty products, disposable sanitary cloths; the household decoration includes carpets, wall coverings, furniture cloths, napkins, household rags, shopping bags; the clothing includes lining cloths, gloves Thermal insulation materials, adhesive linings, shoulder pads, flakes, shaped cotton, synthetic leather base fabrics; the industry includes geotextiles for reinforcement, reinforcement, lamination, impermeability, drainage, separation; roofing waterproofing membranes and asphalt shingles. Substrates; Reinforcing materials, polishing materials, insulating materials, thermal insulation and sound insulation materials; various gas, liquid, and solid filter materials; Curtains, mulch bags, capillary pads, the others include sleeping bags, tents, space cotton, oil absorbing blankets, cigarette filters, tea bags in bags, shoe materials.